High production of Poly-β-hydroxybutyrate (PHB) from Methylobacterium organophilum under potassium limitation View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1996-01

AUTHORS

Seon Won Kim, Pil Kim, Hyun S. Lee, Jung H. Kim

ABSTRACT

Mass production of Poly(β-hydroxybutyrate) (PHB) from Methylobacterium organophilum under potassium-limited condition was carried out using a microcomputeraided automatic fed-batch culture system. The concentration of methanol was kept within the range of 2 – 3 g/l which did not show any inhibitory effect on cell growth. The PHB accumulation was stimulated when potassium concentration in the culture broth fell below 25 mg/l. After 70 hours of cultivation, the concentrations of cell mass and PHB were obtained to be 250 g/l and 130 g/l, respectively, which corresponded to a volumetric productivity of 1.8 – 2.0 g-PHB/1-hr. PHB contents ranged from 52% to 56% of dry cell weight with a yield factor (YP/S) of 0.19 g-PHB/g-methanol. More... »

PAGES

25-30

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00137805

DOI

http://dx.doi.org/10.1007/bf00137805

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1042333116


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