Evaluating acid and base catalysts in the methylation of milk and rumen fatty acids with special emphasis on conjugated dienes ... View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1997-11

AUTHORS

John K. G. Kramer, Vivek Fellner, Michael E. R. Dugan, Frank D. Sauer, Magdi M. Mossoba, Martin P. Yurawecz

ABSTRACT

Milk analysis is receiving increased attention. Milk contains conjugated octadecadienoic acids (18:2) purported to be anticarcinogenic, low levels of essential fatty acids, and trans fatty acids that increase when essential fatty acids are increased in dairy rations. Milk and rumen fatty acid methyl esters (FAME) were prepared using several acid- (HCl, BF3, acetyl chloride, H2SO4) or base-catalysts (NaOCH3, tetramethylguanidine, diazomethane), or combinations thereof. All acid-catalyzed procedures resulted in decreased cis/trans (delta 9c,11t-18:2) and increased trans/trans (delta 9t,11t-18:2) conjugated dienes and the production of allylic methoxy artifacts. The methoxy artifacts were identified by gas-liquid chromatography (Gl.C)-mass spectroscopy. The base-catalyzed procedures gave no isomerization of conjugated dienes and no methoxy artifacts, but they did not transesterify N-acyl lipids such as sphingomyelin, and NaOCH3 did not methylate free fatty acids. In addition, reaction with tetramethylguanidine coextracted material with hexane that interfered with the determination of the short-chain FAME by GLC. Acid-catalyzed methylation resulted in the loss of about 12% total conjugated dienes, 42% recovery of the delta 9c,11t-18:2 isomer, a fourfold increase in delta 9t,11t-18:2, and the formation of methoxy artifacts, compared with the base-catalyzed reactions. Total milk FAME showed significant infrared (IR) absorption due to conjugated dienes at 985 and 948 cm-1. The IR determination of total trans content of milk FAME was not fully satisfactory because the 966 cm-1 trans band overlapped with the conjugated diene bands. IR accuracy was limited by the fact that the absorptivity of methyl elaidate, used as calibration standard, was different from those of the other minor trans fatty acids (e.g., dienes) found in milk. In addition, acid-catalyzed reactions produced interfering material that absorbed extensively in the trans IR region. No single method or combination of methods could adequately prepare FAME from all lipid classes in milk or rumen lipids, and not affect the conjugated dienes. The best compromise for milk fatty acids was obtained with NaOCH3 followed by HCl or BF3, or diazomethane followed by NaOCH3, being aware that sphingomyelins are ignored. For rumen samples, the best method was diazomethane followed by NaOCH3. More... »

PAGES

1219-1228

References to SciGraph publications

  • 1995-03. Content and distribution oftrans-18:1 acids in ruminant milk and meat fats. Their importance in european diets and their effect on human milk in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1997-02. Conjugated linoleic acid modulates hepatic lipid composition in mice in LIPIDS
  • 1996-08. Rapid determination of the totaltrans content of neat hydrogenated oils by attenuated total reflection spectroscopy in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1995-12. Evaluation of sequential methods for the determination of butterfat fatty acid composition with emphasis ontrans-18:1 acids. Application to the study of seasonal variations in french butters in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1972-04. Formation of an artifact during methylation of conjugated fatty acids in LIPIDS
  • 1995-09. Optimized analysis oftrans-octadecenoic acids in edible fats in CHROMATOGRAPHIA
  • 1996-12. Determination of totaltrans fatty acids in foods: Comparison of capillary-column gas chromatography and single-bounce horizontal attenuated total reflection infrared spectroscopy in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1994-10. Conversion of allylic hydroxy oleate to conjugated linoleic acid and methoxy oleate by acid-catalyzed methylation procedures in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1995-07. Reinvestigation of the antioxidant properties of conjugated linoleic acid in LIPIDS
  • 1995-03. Variation of trans fatty acids in milk fats in EUROPEAN JOURNAL OF NUTRITION
  • 1992-05. Conjugated linoleic acid concentration in processed cheese in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1985-10. Analysis of fatty acid methyl esters with high accuracy and reliability. IV. Fats with fatty acids containing four or more carbon atoms in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1994-08. Analysis of alpha-linolenic acid geometrical isomers in deodorized oils by capillary gas-liquid chromatography on cyanoalkyl polysiloxane stationary phases: A note of caution in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1996-11. Fatty acid composition of French infant formulas with emphasis on the content and detailed profile oftrans fatty acids in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1995-01. Trans fatty acid isomers in Canadian human milk in LIPIDS
  • 1988-12. Tetramethylguanidine catalyzed transesterification of fats and oils: A new method for rapid determination of their composition in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1992-02. Positional and geometrical isomers of linoleic acid in partially hydrogenated oils in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1994-03. Contribution oftrans-18∶1 acids from dairy fat to european diets in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1988-02. Limitations of ambient temperature methods for the methanolysis of triacylglycerols in the analysis of fatty acid methyl esters with high accuracy and reliability in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s11745-997-0156-3

    DOI

    http://dx.doi.org/10.1007/s11745-997-0156-3

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1019739405

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/9397408


    Indexing Status Check whether this publication has been indexed by Scopus and Web Of Science using the SN Indexing Status Tool
    Incoming Citations Browse incoming citations for this publication using opencitations.net

    JSON-LD is the canonical representation for SciGraph data.

    TIP: You can open this SciGraph record using an external JSON-LD service: JSON-LD Playground Google SDTT

    [
      {
        "@context": "https://springernature.github.io/scigraph/jsonld/sgcontext.json", 
        "about": [
          {
            "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/0306", 
            "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
            "name": "Physical Chemistry (incl. Structural)", 
            "type": "DefinedTerm"
          }, 
          {
            "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/03", 
            "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
            "name": "Chemical Sciences", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Acetates", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Acids", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Animals", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Boranes", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Catalysis", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Cattle", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Chlorides", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Chromatography, Gas", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Diazomethane", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Fatty Acids", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Female", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Gas Chromatography-Mass Spectrometry", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Hydrochloric Acid", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Hydrogen-Ion Concentration", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Methylation", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Methylguanidine", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Milk", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Rumen", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Spectrophotometry, Infrared", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Spectroscopy, Fourier Transform Infrared", 
            "type": "DefinedTerm"
          }, 
          {
            "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", 
            "name": "Sulfuric Acids", 
            "type": "DefinedTerm"
          }
        ], 
        "author": [
          {
            "affiliation": {
              "alternateName": "Agriculture and Agriculture-Food Canada", 
              "id": "https://www.grid.ac/institutes/grid.55614.33", 
              "name": [
                "Center for Food and Animal Research, Agriculture and Agri-Food Canada, 4046 Neatby Bldg., K1A 0C6, Ottawa, Ontario, Canada"
              ], 
              "type": "Organization"
            }, 
            "familyName": "Kramer", 
            "givenName": "John K. G.", 
            "id": "sg:person.014713472157.20", 
            "sameAs": [
              "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.014713472157.20"
            ], 
            "type": "Person"
          }, 
          {
            "affiliation": {
              "alternateName": "Agriculture and Agriculture-Food Canada", 
              "id": "https://www.grid.ac/institutes/grid.55614.33", 
              "name": [
                "Center for Food and Animal Research, Agriculture and Agri-Food Canada, 4046 Neatby Bldg., K1A 0C6, Ottawa, Ontario, Canada"
              ], 
              "type": "Organization"
            }, 
            "familyName": "Fellner", 
            "givenName": "Vivek", 
            "id": "sg:person.01334647415.72", 
            "sameAs": [
              "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01334647415.72"
            ], 
            "type": "Person"
          }, 
          {
            "affiliation": {
              "alternateName": "Agriculture and Agriculture-Food Canada", 
              "id": "https://www.grid.ac/institutes/grid.55614.33", 
              "name": [
                "Center for Food and Animal Research, Agriculture and Agri-Food Canada, 4046 Neatby Bldg., K1A 0C6, Ottawa, Ontario, Canada"
              ], 
              "type": "Organization"
            }, 
            "familyName": "Dugan", 
            "givenName": "Michael E. R.", 
            "id": "sg:person.010500661564.74", 
            "sameAs": [
              "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.010500661564.74"
            ], 
            "type": "Person"
          }, 
          {
            "affiliation": {
              "alternateName": "Agriculture and Agriculture-Food Canada", 
              "id": "https://www.grid.ac/institutes/grid.55614.33", 
              "name": [
                "Center for Food and Animal Research, Agriculture and Agri-Food Canada, 4046 Neatby Bldg., K1A 0C6, Ottawa, Ontario, Canada"
              ], 
              "type": "Organization"
            }, 
            "familyName": "Sauer", 
            "givenName": "Frank D.", 
            "id": "sg:person.01246053270.91", 
            "sameAs": [
              "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01246053270.91"
            ], 
            "type": "Person"
          }, 
          {
            "affiliation": {
              "alternateName": "Center for Food Safety and Applied Nutrition", 
              "id": "https://www.grid.ac/institutes/grid.483501.b", 
              "name": [
                "Center for Food Safety and Applied Nutrition, U.S. FDA, 20204, Washington, DC"
              ], 
              "type": "Organization"
            }, 
            "familyName": "Mossoba", 
            "givenName": "Magdi M.", 
            "id": "sg:person.0633567214.19", 
            "sameAs": [
              "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0633567214.19"
            ], 
            "type": "Person"
          }, 
          {
            "affiliation": {
              "alternateName": "Center for Food Safety and Applied Nutrition", 
              "id": "https://www.grid.ac/institutes/grid.483501.b", 
              "name": [
                "Center for Food Safety and Applied Nutrition, U.S. FDA, 20204, Washington, DC"
              ], 
              "type": "Organization"
            }, 
            "familyName": "Yurawecz", 
            "givenName": "Martin P.", 
            "id": "sg:person.0667751214.22", 
            "sameAs": [
              "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0667751214.22"
            ], 
            "type": "Person"
          }
        ], 
        "citation": [
          {
            "id": "https://doi.org/10.1016/0079-6832(79)90009-0", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1001102285"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1139/o59-099", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1001206449"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02636413", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1001868522", 
              "https://doi.org/10.1007/bf02636413"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02541903", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1002904848", 
              "https://doi.org/10.1007/bf02541903"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02541081", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1003805011", 
              "https://doi.org/10.1007/bf02541081"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0009-3084(87)90072-7", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1003887468"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0009-3084(87)90072-7", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1003887468"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1111/j.1753-4887.1995.tb01525.x", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1004214796"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1111/j.1753-4887.1995.tb01525.x", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1004214796"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1111/j.1753-4887.1995.tb01525.x", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1004214796"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02540472", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1004721612", 
              "https://doi.org/10.1007/bf02540472"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1271/bbb.57.1026", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1009155948"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02577840", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1010676679", 
              "https://doi.org/10.1007/bf02577840"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02523531", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1012141060", 
              "https://doi.org/10.1007/bf02523531"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02517975", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1014477258", 
              "https://doi.org/10.1007/bf02517975"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/b978-0-08-023789-3.50009-x", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1016446420"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02638053", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1017298306", 
              "https://doi.org/10.1007/bf02638053"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf01612782", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1017596609", 
              "https://doi.org/10.1007/bf01612782"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf01612782", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1017596609", 
              "https://doi.org/10.1007/bf01612782"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf01612782", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1017596609", 
              "https://doi.org/10.1007/bf01612782"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02540942", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1018113292", 
              "https://doi.org/10.1007/bf02540942"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1111/j.1365-2621.1995.tb06208.x", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1018442352"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02533230", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1024969311", 
              "https://doi.org/10.1007/bf02533230"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02675911", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1025902165", 
              "https://doi.org/10.1007/bf02675911"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02540557", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1029512093", 
              "https://doi.org/10.1007/bf02540557"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02688039", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1036193571", 
              "https://doi.org/10.1007/bf02688039"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/s11745-997-0025-0", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1036703386", 
              "https://doi.org/10.1007/s11745-997-0025-0"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0301-6226(89)90073-0", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1037970280"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0301-6226(89)90073-0", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1037970280"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0014-5793(84)80512-8", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1039188276"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0014-5793(83)80763-7", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1039355496"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02546012", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1041801762", 
              "https://doi.org/10.1007/bf02546012"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0955-2863(95)00193-x", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1042410178"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02537037", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1043910532", 
              "https://doi.org/10.1007/bf02537037"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/b978-0-08-023789-3.50006-4", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1044220230"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02523408", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1049536670", 
              "https://doi.org/10.1007/bf02523408"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0891-5849(91)90016-v", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1052086795"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0891-5849(91)90016-v", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1052086795"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "sg:pub.10.1007/bf02536996", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1052229443", 
              "https://doi.org/10.1007/bf02536996"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1016/0163-7827(95)00010-0", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1053241051"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1021/ac60146a047", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1055036794"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1021/jf00022a017", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1055892509"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1021/jf00085a018", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1055895829"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1051/lait:198913", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1057023176"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1093/chromsci/28.12.633", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1059464413"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.1093/chromsci/29.8.324", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1059464568"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.2527/1998.763906x", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1070880325"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://app.dimensions.ai/details/publication/pub.1076348378", 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.3168/jds.s0022-0302(91)78509-3", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1077475611"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://app.dimensions.ai/details/publication/pub.1077881291", 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://app.dimensions.ai/details/publication/pub.1078621513", 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://app.dimensions.ai/details/publication/pub.1080053702", 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://app.dimensions.ai/details/publication/pub.1081453997", 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://app.dimensions.ai/details/publication/pub.1082129735", 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.3168/jds.s0022-0302(96)76383-x", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1082918489"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.3168/jds.s0022-0302(95)76806-0", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1082954636"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.3168/jds.s0022-0302(97)76015-6", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1083100334"
            ], 
            "type": "CreativeWork"
          }, 
          {
            "id": "https://doi.org/10.3168/jds.s0022-0302(69)86739-1", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1086094367"
            ], 
            "type": "CreativeWork"
          }
        ], 
        "datePublished": "1997-11", 
        "datePublishedReg": "1997-11-01", 
        "description": "Milk analysis is receiving increased attention. Milk contains conjugated octadecadienoic acids (18:2) purported to be anticarcinogenic, low levels of essential fatty acids, and trans fatty acids that increase when essential fatty acids are increased in dairy rations. Milk and rumen fatty acid methyl esters (FAME) were prepared using several acid- (HCl, BF3, acetyl chloride, H2SO4) or base-catalysts (NaOCH3, tetramethylguanidine, diazomethane), or combinations thereof. All acid-catalyzed procedures resulted in decreased cis/trans (delta 9c,11t-18:2) and increased trans/trans (delta 9t,11t-18:2) conjugated dienes and the production of allylic methoxy artifacts. The methoxy artifacts were identified by gas-liquid chromatography (Gl.C)-mass spectroscopy. The base-catalyzed procedures gave no isomerization of conjugated dienes and no methoxy artifacts, but they did not transesterify N-acyl lipids such as sphingomyelin, and NaOCH3 did not methylate free fatty acids. In addition, reaction with tetramethylguanidine coextracted material with hexane that interfered with the determination of the short-chain FAME by GLC. Acid-catalyzed methylation resulted in the loss of about 12% total conjugated dienes, 42% recovery of the delta 9c,11t-18:2 isomer, a fourfold increase in delta 9t,11t-18:2, and the formation of methoxy artifacts, compared with the base-catalyzed reactions. Total milk FAME showed significant infrared (IR) absorption due to conjugated dienes at 985 and 948 cm-1. The IR determination of total trans content of milk FAME was not fully satisfactory because the 966 cm-1 trans band overlapped with the conjugated diene bands. IR accuracy was limited by the fact that the absorptivity of methyl elaidate, used as calibration standard, was different from those of the other minor trans fatty acids (e.g., dienes) found in milk. In addition, acid-catalyzed reactions produced interfering material that absorbed extensively in the trans IR region. No single method or combination of methods could adequately prepare FAME from all lipid classes in milk or rumen lipids, and not affect the conjugated dienes. The best compromise for milk fatty acids was obtained with NaOCH3 followed by HCl or BF3, or diazomethane followed by NaOCH3, being aware that sphingomyelins are ignored. For rumen samples, the best method was diazomethane followed by NaOCH3.", 
        "genre": "research_article", 
        "id": "sg:pub.10.1007/s11745-997-0156-3", 
        "inLanguage": [
          "en"
        ], 
        "isAccessibleForFree": false, 
        "isPartOf": [
          {
            "id": "sg:journal.1006395", 
            "issn": [
              "0024-4201", 
              "1558-9307"
            ], 
            "name": "Lipids", 
            "type": "Periodical"
          }, 
          {
            "issueNumber": "11", 
            "type": "PublicationIssue"
          }, 
          {
            "type": "PublicationVolume", 
            "volumeNumber": "32"
          }
        ], 
        "name": "Evaluating acid and base catalysts in the methylation of milk and rumen fatty acids with special emphasis on conjugated dienes and total trans fatty acids", 
        "pagination": "1219-1228", 
        "productId": [
          {
            "name": "readcube_id", 
            "type": "PropertyValue", 
            "value": [
              "5e0d0b2e210900ad1c2f7a3f4f34d7a5dd4e0b7f7faa87ba8a198d507cb1f701"
            ]
          }, 
          {
            "name": "pubmed_id", 
            "type": "PropertyValue", 
            "value": [
              "9397408"
            ]
          }, 
          {
            "name": "nlm_unique_id", 
            "type": "PropertyValue", 
            "value": [
              "0060450"
            ]
          }, 
          {
            "name": "doi", 
            "type": "PropertyValue", 
            "value": [
              "10.1007/s11745-997-0156-3"
            ]
          }, 
          {
            "name": "dimensions_id", 
            "type": "PropertyValue", 
            "value": [
              "pub.1019739405"
            ]
          }
        ], 
        "sameAs": [
          "https://doi.org/10.1007/s11745-997-0156-3", 
          "https://app.dimensions.ai/details/publication/pub.1019739405"
        ], 
        "sdDataset": "articles", 
        "sdDatePublished": "2019-04-10T17:34", 
        "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
        "sdPublisher": {
          "name": "Springer Nature - SN SciGraph project", 
          "type": "Organization"
        }, 
        "sdSource": "s3://com-uberresearch-data-dimensions-target-20181106-alternative/cleanup/v134/2549eaecd7973599484d7c17b260dba0a4ecb94b/merge/v9/a6c9fde33151104705d4d7ff012ea9563521a3ce/jats-lookup/v90/0000000001_0000000264/records_8672_00000521.jsonl", 
        "type": "ScholarlyArticle", 
        "url": "http://link.springer.com/10.1007%2Fs11745-997-0156-3"
      }
    ]
     

    Download the RDF metadata as:  json-ld nt turtle xml License info

    HOW TO GET THIS DATA PROGRAMMATICALLY:

    JSON-LD is a popular format for linked data which is fully compatible with JSON.

    curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1007/s11745-997-0156-3'

    N-Triples is a line-based linked data format ideal for batch operations.

    curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1007/s11745-997-0156-3'

    Turtle is a human-readable linked data format.

    curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/s11745-997-0156-3'

    RDF/XML is a standard XML format for linked data.

    curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/s11745-997-0156-3'


     

    This table displays all metadata directly associated to this object as RDF triples.

    357 TRIPLES      21 PREDICATES      101 URIs      42 LITERALS      30 BLANK NODES

    Subject Predicate Object
    1 sg:pub.10.1007/s11745-997-0156-3 schema:about N0b52e4e9115a4a85813d0f6377d7d657
    2 N10303a259ecb446aabd2da831de7b8cc
    3 N2105e36819b341a3b63a247531a4fd17
    4 N264153595d4343919539e7629be4f1f3
    5 N2c07baee1d86489d84024f1417614551
    6 N2c8a4bbb212545be90b185e6eeadab32
    7 N2e505235ee144600965bf9cdb80bb3b0
    8 N4159b951d3034f99a0721d226b913b2d
    9 N4ae3cfee35c34d94b9cdde8bae42e27e
    10 N7351d86b25034d429a718a7b871607b4
    11 N953f5aefcc484ba3a02c4feb27084c9b
    12 N995b8151a54347288becb24beeaecbdb
    13 Na41ac05ce9a94dc0beb8121cdb8de308
    14 Nb8ff99b6f2e546a1b63ac779484fbc43
    15 Nbaabe84288964ab694a6407481b95363
    16 Nc095a781ca33440bb4bc5e9f1c9c4ab5
    17 Ncd4fdcd15cdd4a07abea293b85a92600
    18 Nd18570dea40e4024b69acaabf7af9aef
    19 Ndc98ebe9e26a408f8e3d75ab5ebb8fdf
    20 Nf07bc239fd1e4395bf216db3b714d893
    21 Nfb4000d454da4d48bf6eae8892d0db85
    22 anzsrc-for:03
    23 anzsrc-for:0306
    24 schema:author N083ea8d6cc24400d85d1ba178ff7d8e6
    25 schema:citation sg:pub.10.1007/bf01612782
    26 sg:pub.10.1007/bf02517975
    27 sg:pub.10.1007/bf02523408
    28 sg:pub.10.1007/bf02523531
    29 sg:pub.10.1007/bf02533230
    30 sg:pub.10.1007/bf02536996
    31 sg:pub.10.1007/bf02537037
    32 sg:pub.10.1007/bf02540472
    33 sg:pub.10.1007/bf02540557
    34 sg:pub.10.1007/bf02540942
    35 sg:pub.10.1007/bf02541081
    36 sg:pub.10.1007/bf02541903
    37 sg:pub.10.1007/bf02546012
    38 sg:pub.10.1007/bf02577840
    39 sg:pub.10.1007/bf02636413
    40 sg:pub.10.1007/bf02638053
    41 sg:pub.10.1007/bf02675911
    42 sg:pub.10.1007/bf02688039
    43 sg:pub.10.1007/s11745-997-0025-0
    44 https://app.dimensions.ai/details/publication/pub.1076348378
    45 https://app.dimensions.ai/details/publication/pub.1077881291
    46 https://app.dimensions.ai/details/publication/pub.1078621513
    47 https://app.dimensions.ai/details/publication/pub.1080053702
    48 https://app.dimensions.ai/details/publication/pub.1081453997
    49 https://app.dimensions.ai/details/publication/pub.1082129735
    50 https://doi.org/10.1016/0009-3084(87)90072-7
    51 https://doi.org/10.1016/0014-5793(83)80763-7
    52 https://doi.org/10.1016/0014-5793(84)80512-8
    53 https://doi.org/10.1016/0079-6832(79)90009-0
    54 https://doi.org/10.1016/0163-7827(95)00010-0
    55 https://doi.org/10.1016/0301-6226(89)90073-0
    56 https://doi.org/10.1016/0891-5849(91)90016-v
    57 https://doi.org/10.1016/0955-2863(95)00193-x
    58 https://doi.org/10.1016/b978-0-08-023789-3.50006-4
    59 https://doi.org/10.1016/b978-0-08-023789-3.50009-x
    60 https://doi.org/10.1021/ac60146a047
    61 https://doi.org/10.1021/jf00022a017
    62 https://doi.org/10.1021/jf00085a018
    63 https://doi.org/10.1051/lait:198913
    64 https://doi.org/10.1093/chromsci/28.12.633
    65 https://doi.org/10.1093/chromsci/29.8.324
    66 https://doi.org/10.1111/j.1365-2621.1995.tb06208.x
    67 https://doi.org/10.1111/j.1753-4887.1995.tb01525.x
    68 https://doi.org/10.1139/o59-099
    69 https://doi.org/10.1271/bbb.57.1026
    70 https://doi.org/10.2527/1998.763906x
    71 https://doi.org/10.3168/jds.s0022-0302(69)86739-1
    72 https://doi.org/10.3168/jds.s0022-0302(91)78509-3
    73 https://doi.org/10.3168/jds.s0022-0302(95)76806-0
    74 https://doi.org/10.3168/jds.s0022-0302(96)76383-x
    75 https://doi.org/10.3168/jds.s0022-0302(97)76015-6
    76 schema:datePublished 1997-11
    77 schema:datePublishedReg 1997-11-01
    78 schema:description Milk analysis is receiving increased attention. Milk contains conjugated octadecadienoic acids (18:2) purported to be anticarcinogenic, low levels of essential fatty acids, and trans fatty acids that increase when essential fatty acids are increased in dairy rations. Milk and rumen fatty acid methyl esters (FAME) were prepared using several acid- (HCl, BF3, acetyl chloride, H2SO4) or base-catalysts (NaOCH3, tetramethylguanidine, diazomethane), or combinations thereof. All acid-catalyzed procedures resulted in decreased cis/trans (delta 9c,11t-18:2) and increased trans/trans (delta 9t,11t-18:2) conjugated dienes and the production of allylic methoxy artifacts. The methoxy artifacts were identified by gas-liquid chromatography (Gl.C)-mass spectroscopy. The base-catalyzed procedures gave no isomerization of conjugated dienes and no methoxy artifacts, but they did not transesterify N-acyl lipids such as sphingomyelin, and NaOCH3 did not methylate free fatty acids. In addition, reaction with tetramethylguanidine coextracted material with hexane that interfered with the determination of the short-chain FAME by GLC. Acid-catalyzed methylation resulted in the loss of about 12% total conjugated dienes, 42% recovery of the delta 9c,11t-18:2 isomer, a fourfold increase in delta 9t,11t-18:2, and the formation of methoxy artifacts, compared with the base-catalyzed reactions. Total milk FAME showed significant infrared (IR) absorption due to conjugated dienes at 985 and 948 cm-1. The IR determination of total trans content of milk FAME was not fully satisfactory because the 966 cm-1 trans band overlapped with the conjugated diene bands. IR accuracy was limited by the fact that the absorptivity of methyl elaidate, used as calibration standard, was different from those of the other minor trans fatty acids (e.g., dienes) found in milk. In addition, acid-catalyzed reactions produced interfering material that absorbed extensively in the trans IR region. No single method or combination of methods could adequately prepare FAME from all lipid classes in milk or rumen lipids, and not affect the conjugated dienes. The best compromise for milk fatty acids was obtained with NaOCH3 followed by HCl or BF3, or diazomethane followed by NaOCH3, being aware that sphingomyelins are ignored. For rumen samples, the best method was diazomethane followed by NaOCH3.
    79 schema:genre research_article
    80 schema:inLanguage en
    81 schema:isAccessibleForFree false
    82 schema:isPartOf Na77156f6611842f9bf9038d977d96ee9
    83 Nb080a99650b1446ca1ca83c4dba3eb21
    84 sg:journal.1006395
    85 schema:name Evaluating acid and base catalysts in the methylation of milk and rumen fatty acids with special emphasis on conjugated dienes and total trans fatty acids
    86 schema:pagination 1219-1228
    87 schema:productId N1aeb58527ddf4307a0f025b92def5c7e
    88 N1fdc5113f6c14a3c987d457909dc0b58
    89 N6789f1f685e2496fa842e74935f8f8ae
    90 N9b2237a33e3141c2a4ed3e90e8a8a41d
    91 Nfcd010648c264469b83146d80141f810
    92 schema:sameAs https://app.dimensions.ai/details/publication/pub.1019739405
    93 https://doi.org/10.1007/s11745-997-0156-3
    94 schema:sdDatePublished 2019-04-10T17:34
    95 schema:sdLicense https://scigraph.springernature.com/explorer/license/
    96 schema:sdPublisher N4f63a4c786ee4fec859d1ec81d012d9b
    97 schema:url http://link.springer.com/10.1007%2Fs11745-997-0156-3
    98 sgo:license sg:explorer/license/
    99 sgo:sdDataset articles
    100 rdf:type schema:ScholarlyArticle
    101 N083ea8d6cc24400d85d1ba178ff7d8e6 rdf:first sg:person.014713472157.20
    102 rdf:rest Nbffa4c317cf345c584e18f887afe20d0
    103 N0b52e4e9115a4a85813d0f6377d7d657 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    104 schema:name Rumen
    105 rdf:type schema:DefinedTerm
    106 N10303a259ecb446aabd2da831de7b8cc schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    107 schema:name Hydrogen-Ion Concentration
    108 rdf:type schema:DefinedTerm
    109 N19a0d50386d443b88273507b187f033e rdf:first sg:person.0633567214.19
    110 rdf:rest Ndc1408a9d028428d960b7d0730c96b76
    111 N1aeb58527ddf4307a0f025b92def5c7e schema:name nlm_unique_id
    112 schema:value 0060450
    113 rdf:type schema:PropertyValue
    114 N1fdc5113f6c14a3c987d457909dc0b58 schema:name pubmed_id
    115 schema:value 9397408
    116 rdf:type schema:PropertyValue
    117 N2105e36819b341a3b63a247531a4fd17 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    118 schema:name Catalysis
    119 rdf:type schema:DefinedTerm
    120 N264153595d4343919539e7629be4f1f3 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    121 schema:name Cattle
    122 rdf:type schema:DefinedTerm
    123 N2c07baee1d86489d84024f1417614551 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    124 schema:name Fatty Acids
    125 rdf:type schema:DefinedTerm
    126 N2c8a4bbb212545be90b185e6eeadab32 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    127 schema:name Chromatography, Gas
    128 rdf:type schema:DefinedTerm
    129 N2e505235ee144600965bf9cdb80bb3b0 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    130 schema:name Methylation
    131 rdf:type schema:DefinedTerm
    132 N4159b951d3034f99a0721d226b913b2d schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    133 schema:name Milk
    134 rdf:type schema:DefinedTerm
    135 N4ae3cfee35c34d94b9cdde8bae42e27e schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    136 schema:name Spectroscopy, Fourier Transform Infrared
    137 rdf:type schema:DefinedTerm
    138 N4f63a4c786ee4fec859d1ec81d012d9b schema:name Springer Nature - SN SciGraph project
    139 rdf:type schema:Organization
    140 N6789f1f685e2496fa842e74935f8f8ae schema:name readcube_id
    141 schema:value 5e0d0b2e210900ad1c2f7a3f4f34d7a5dd4e0b7f7faa87ba8a198d507cb1f701
    142 rdf:type schema:PropertyValue
    143 N6b0e82170d934fa781823d055c41997a rdf:first sg:person.01246053270.91
    144 rdf:rest N19a0d50386d443b88273507b187f033e
    145 N7351d86b25034d429a718a7b871607b4 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    146 schema:name Gas Chromatography-Mass Spectrometry
    147 rdf:type schema:DefinedTerm
    148 N953f5aefcc484ba3a02c4feb27084c9b schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    149 schema:name Animals
    150 rdf:type schema:DefinedTerm
    151 N995b8151a54347288becb24beeaecbdb schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    152 schema:name Acetates
    153 rdf:type schema:DefinedTerm
    154 N9b2237a33e3141c2a4ed3e90e8a8a41d schema:name dimensions_id
    155 schema:value pub.1019739405
    156 rdf:type schema:PropertyValue
    157 Na41ac05ce9a94dc0beb8121cdb8de308 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    158 schema:name Female
    159 rdf:type schema:DefinedTerm
    160 Na77156f6611842f9bf9038d977d96ee9 schema:volumeNumber 32
    161 rdf:type schema:PublicationVolume
    162 Nb080a99650b1446ca1ca83c4dba3eb21 schema:issueNumber 11
    163 rdf:type schema:PublicationIssue
    164 Nb8ff99b6f2e546a1b63ac779484fbc43 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    165 schema:name Acids
    166 rdf:type schema:DefinedTerm
    167 Nbaabe84288964ab694a6407481b95363 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    168 schema:name Boranes
    169 rdf:type schema:DefinedTerm
    170 Nbffa4c317cf345c584e18f887afe20d0 rdf:first sg:person.01334647415.72
    171 rdf:rest Ndf922ea41b314322ba46f253b8818d96
    172 Nc095a781ca33440bb4bc5e9f1c9c4ab5 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    173 schema:name Methylguanidine
    174 rdf:type schema:DefinedTerm
    175 Ncd4fdcd15cdd4a07abea293b85a92600 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    176 schema:name Spectrophotometry, Infrared
    177 rdf:type schema:DefinedTerm
    178 Nd18570dea40e4024b69acaabf7af9aef schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    179 schema:name Sulfuric Acids
    180 rdf:type schema:DefinedTerm
    181 Ndc1408a9d028428d960b7d0730c96b76 rdf:first sg:person.0667751214.22
    182 rdf:rest rdf:nil
    183 Ndc98ebe9e26a408f8e3d75ab5ebb8fdf schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    184 schema:name Hydrochloric Acid
    185 rdf:type schema:DefinedTerm
    186 Ndf922ea41b314322ba46f253b8818d96 rdf:first sg:person.010500661564.74
    187 rdf:rest N6b0e82170d934fa781823d055c41997a
    188 Nf07bc239fd1e4395bf216db3b714d893 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    189 schema:name Chlorides
    190 rdf:type schema:DefinedTerm
    191 Nfb4000d454da4d48bf6eae8892d0db85 schema:inDefinedTermSet https://www.nlm.nih.gov/mesh/
    192 schema:name Diazomethane
    193 rdf:type schema:DefinedTerm
    194 Nfcd010648c264469b83146d80141f810 schema:name doi
    195 schema:value 10.1007/s11745-997-0156-3
    196 rdf:type schema:PropertyValue
    197 anzsrc-for:03 schema:inDefinedTermSet anzsrc-for:
    198 schema:name Chemical Sciences
    199 rdf:type schema:DefinedTerm
    200 anzsrc-for:0306 schema:inDefinedTermSet anzsrc-for:
    201 schema:name Physical Chemistry (incl. Structural)
    202 rdf:type schema:DefinedTerm
    203 sg:journal.1006395 schema:issn 0024-4201
    204 1558-9307
    205 schema:name Lipids
    206 rdf:type schema:Periodical
    207 sg:person.010500661564.74 schema:affiliation https://www.grid.ac/institutes/grid.55614.33
    208 schema:familyName Dugan
    209 schema:givenName Michael E. R.
    210 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.010500661564.74
    211 rdf:type schema:Person
    212 sg:person.01246053270.91 schema:affiliation https://www.grid.ac/institutes/grid.55614.33
    213 schema:familyName Sauer
    214 schema:givenName Frank D.
    215 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01246053270.91
    216 rdf:type schema:Person
    217 sg:person.01334647415.72 schema:affiliation https://www.grid.ac/institutes/grid.55614.33
    218 schema:familyName Fellner
    219 schema:givenName Vivek
    220 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01334647415.72
    221 rdf:type schema:Person
    222 sg:person.014713472157.20 schema:affiliation https://www.grid.ac/institutes/grid.55614.33
    223 schema:familyName Kramer
    224 schema:givenName John K. G.
    225 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.014713472157.20
    226 rdf:type schema:Person
    227 sg:person.0633567214.19 schema:affiliation https://www.grid.ac/institutes/grid.483501.b
    228 schema:familyName Mossoba
    229 schema:givenName Magdi M.
    230 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0633567214.19
    231 rdf:type schema:Person
    232 sg:person.0667751214.22 schema:affiliation https://www.grid.ac/institutes/grid.483501.b
    233 schema:familyName Yurawecz
    234 schema:givenName Martin P.
    235 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0667751214.22
    236 rdf:type schema:Person
    237 sg:pub.10.1007/bf01612782 schema:sameAs https://app.dimensions.ai/details/publication/pub.1017596609
    238 https://doi.org/10.1007/bf01612782
    239 rdf:type schema:CreativeWork
    240 sg:pub.10.1007/bf02517975 schema:sameAs https://app.dimensions.ai/details/publication/pub.1014477258
    241 https://doi.org/10.1007/bf02517975
    242 rdf:type schema:CreativeWork
    243 sg:pub.10.1007/bf02523408 schema:sameAs https://app.dimensions.ai/details/publication/pub.1049536670
    244 https://doi.org/10.1007/bf02523408
    245 rdf:type schema:CreativeWork
    246 sg:pub.10.1007/bf02523531 schema:sameAs https://app.dimensions.ai/details/publication/pub.1012141060
    247 https://doi.org/10.1007/bf02523531
    248 rdf:type schema:CreativeWork
    249 sg:pub.10.1007/bf02533230 schema:sameAs https://app.dimensions.ai/details/publication/pub.1024969311
    250 https://doi.org/10.1007/bf02533230
    251 rdf:type schema:CreativeWork
    252 sg:pub.10.1007/bf02536996 schema:sameAs https://app.dimensions.ai/details/publication/pub.1052229443
    253 https://doi.org/10.1007/bf02536996
    254 rdf:type schema:CreativeWork
    255 sg:pub.10.1007/bf02537037 schema:sameAs https://app.dimensions.ai/details/publication/pub.1043910532
    256 https://doi.org/10.1007/bf02537037
    257 rdf:type schema:CreativeWork
    258 sg:pub.10.1007/bf02540472 schema:sameAs https://app.dimensions.ai/details/publication/pub.1004721612
    259 https://doi.org/10.1007/bf02540472
    260 rdf:type schema:CreativeWork
    261 sg:pub.10.1007/bf02540557 schema:sameAs https://app.dimensions.ai/details/publication/pub.1029512093
    262 https://doi.org/10.1007/bf02540557
    263 rdf:type schema:CreativeWork
    264 sg:pub.10.1007/bf02540942 schema:sameAs https://app.dimensions.ai/details/publication/pub.1018113292
    265 https://doi.org/10.1007/bf02540942
    266 rdf:type schema:CreativeWork
    267 sg:pub.10.1007/bf02541081 schema:sameAs https://app.dimensions.ai/details/publication/pub.1003805011
    268 https://doi.org/10.1007/bf02541081
    269 rdf:type schema:CreativeWork
    270 sg:pub.10.1007/bf02541903 schema:sameAs https://app.dimensions.ai/details/publication/pub.1002904848
    271 https://doi.org/10.1007/bf02541903
    272 rdf:type schema:CreativeWork
    273 sg:pub.10.1007/bf02546012 schema:sameAs https://app.dimensions.ai/details/publication/pub.1041801762
    274 https://doi.org/10.1007/bf02546012
    275 rdf:type schema:CreativeWork
    276 sg:pub.10.1007/bf02577840 schema:sameAs https://app.dimensions.ai/details/publication/pub.1010676679
    277 https://doi.org/10.1007/bf02577840
    278 rdf:type schema:CreativeWork
    279 sg:pub.10.1007/bf02636413 schema:sameAs https://app.dimensions.ai/details/publication/pub.1001868522
    280 https://doi.org/10.1007/bf02636413
    281 rdf:type schema:CreativeWork
    282 sg:pub.10.1007/bf02638053 schema:sameAs https://app.dimensions.ai/details/publication/pub.1017298306
    283 https://doi.org/10.1007/bf02638053
    284 rdf:type schema:CreativeWork
    285 sg:pub.10.1007/bf02675911 schema:sameAs https://app.dimensions.ai/details/publication/pub.1025902165
    286 https://doi.org/10.1007/bf02675911
    287 rdf:type schema:CreativeWork
    288 sg:pub.10.1007/bf02688039 schema:sameAs https://app.dimensions.ai/details/publication/pub.1036193571
    289 https://doi.org/10.1007/bf02688039
    290 rdf:type schema:CreativeWork
    291 sg:pub.10.1007/s11745-997-0025-0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1036703386
    292 https://doi.org/10.1007/s11745-997-0025-0
    293 rdf:type schema:CreativeWork
    294 https://app.dimensions.ai/details/publication/pub.1076348378 schema:CreativeWork
    295 https://app.dimensions.ai/details/publication/pub.1077881291 schema:CreativeWork
    296 https://app.dimensions.ai/details/publication/pub.1078621513 schema:CreativeWork
    297 https://app.dimensions.ai/details/publication/pub.1080053702 schema:CreativeWork
    298 https://app.dimensions.ai/details/publication/pub.1081453997 schema:CreativeWork
    299 https://app.dimensions.ai/details/publication/pub.1082129735 schema:CreativeWork
    300 https://doi.org/10.1016/0009-3084(87)90072-7 schema:sameAs https://app.dimensions.ai/details/publication/pub.1003887468
    301 rdf:type schema:CreativeWork
    302 https://doi.org/10.1016/0014-5793(83)80763-7 schema:sameAs https://app.dimensions.ai/details/publication/pub.1039355496
    303 rdf:type schema:CreativeWork
    304 https://doi.org/10.1016/0014-5793(84)80512-8 schema:sameAs https://app.dimensions.ai/details/publication/pub.1039188276
    305 rdf:type schema:CreativeWork
    306 https://doi.org/10.1016/0079-6832(79)90009-0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1001102285
    307 rdf:type schema:CreativeWork
    308 https://doi.org/10.1016/0163-7827(95)00010-0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1053241051
    309 rdf:type schema:CreativeWork
    310 https://doi.org/10.1016/0301-6226(89)90073-0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1037970280
    311 rdf:type schema:CreativeWork
    312 https://doi.org/10.1016/0891-5849(91)90016-v schema:sameAs https://app.dimensions.ai/details/publication/pub.1052086795
    313 rdf:type schema:CreativeWork
    314 https://doi.org/10.1016/0955-2863(95)00193-x schema:sameAs https://app.dimensions.ai/details/publication/pub.1042410178
    315 rdf:type schema:CreativeWork
    316 https://doi.org/10.1016/b978-0-08-023789-3.50006-4 schema:sameAs https://app.dimensions.ai/details/publication/pub.1044220230
    317 rdf:type schema:CreativeWork
    318 https://doi.org/10.1016/b978-0-08-023789-3.50009-x schema:sameAs https://app.dimensions.ai/details/publication/pub.1016446420
    319 rdf:type schema:CreativeWork
    320 https://doi.org/10.1021/ac60146a047 schema:sameAs https://app.dimensions.ai/details/publication/pub.1055036794
    321 rdf:type schema:CreativeWork
    322 https://doi.org/10.1021/jf00022a017 schema:sameAs https://app.dimensions.ai/details/publication/pub.1055892509
    323 rdf:type schema:CreativeWork
    324 https://doi.org/10.1021/jf00085a018 schema:sameAs https://app.dimensions.ai/details/publication/pub.1055895829
    325 rdf:type schema:CreativeWork
    326 https://doi.org/10.1051/lait:198913 schema:sameAs https://app.dimensions.ai/details/publication/pub.1057023176
    327 rdf:type schema:CreativeWork
    328 https://doi.org/10.1093/chromsci/28.12.633 schema:sameAs https://app.dimensions.ai/details/publication/pub.1059464413
    329 rdf:type schema:CreativeWork
    330 https://doi.org/10.1093/chromsci/29.8.324 schema:sameAs https://app.dimensions.ai/details/publication/pub.1059464568
    331 rdf:type schema:CreativeWork
    332 https://doi.org/10.1111/j.1365-2621.1995.tb06208.x schema:sameAs https://app.dimensions.ai/details/publication/pub.1018442352
    333 rdf:type schema:CreativeWork
    334 https://doi.org/10.1111/j.1753-4887.1995.tb01525.x schema:sameAs https://app.dimensions.ai/details/publication/pub.1004214796
    335 rdf:type schema:CreativeWork
    336 https://doi.org/10.1139/o59-099 schema:sameAs https://app.dimensions.ai/details/publication/pub.1001206449
    337 rdf:type schema:CreativeWork
    338 https://doi.org/10.1271/bbb.57.1026 schema:sameAs https://app.dimensions.ai/details/publication/pub.1009155948
    339 rdf:type schema:CreativeWork
    340 https://doi.org/10.2527/1998.763906x schema:sameAs https://app.dimensions.ai/details/publication/pub.1070880325
    341 rdf:type schema:CreativeWork
    342 https://doi.org/10.3168/jds.s0022-0302(69)86739-1 schema:sameAs https://app.dimensions.ai/details/publication/pub.1086094367
    343 rdf:type schema:CreativeWork
    344 https://doi.org/10.3168/jds.s0022-0302(91)78509-3 schema:sameAs https://app.dimensions.ai/details/publication/pub.1077475611
    345 rdf:type schema:CreativeWork
    346 https://doi.org/10.3168/jds.s0022-0302(95)76806-0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1082954636
    347 rdf:type schema:CreativeWork
    348 https://doi.org/10.3168/jds.s0022-0302(96)76383-x schema:sameAs https://app.dimensions.ai/details/publication/pub.1082918489
    349 rdf:type schema:CreativeWork
    350 https://doi.org/10.3168/jds.s0022-0302(97)76015-6 schema:sameAs https://app.dimensions.ai/details/publication/pub.1083100334
    351 rdf:type schema:CreativeWork
    352 https://www.grid.ac/institutes/grid.483501.b schema:alternateName Center for Food Safety and Applied Nutrition
    353 schema:name Center for Food Safety and Applied Nutrition, U.S. FDA, 20204, Washington, DC
    354 rdf:type schema:Organization
    355 https://www.grid.ac/institutes/grid.55614.33 schema:alternateName Agriculture and Agriculture-Food Canada
    356 schema:name Center for Food and Animal Research, Agriculture and Agri-Food Canada, 4046 Neatby Bldg., K1A 0C6, Ottawa, Ontario, Canada
    357 rdf:type schema:Organization
     




    Preview window. Press ESC to close (or click here)


    ...