Effect of low molecular weight dextrins on gelatinization and retrogradation of starch View Full Text


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Article Info

DATE

2001-01

AUTHORS

Encarna Durán, Alberto León, Berta Barber, C. Benedito de Barber

ABSTRACT

α-Amylases, usually added to bread recipes as anti-firming agents, are known to produce low molecular weight dextrins by starch hydrolysis. The influence of these compounds on the gelatinization and retrogradation of starch was studied by differential scanning calorimetry. Adding oligosaccharides to starch caused a delay in gelatinization, although its extent was not quantified. However, oligosaccharides of degrees of polymerization (DP) 3–5 reduced the enthalpy of the retrogradation endotherm, shown as the staling endotherm. The addition of gluten to starch and starch/oligosaccharide mixtures had no effect on the gelatinization and retrogradation of starch. The retrogradation of starch in dough samples was also analysed, after 'baking' in the calorimeter, to obtain additional information about starch retrogradation during storage. Oligosaccharides of DP 3–5 also reduced the enthalpy of the retrogradation endotherm. This work provides evidence that oligosaccharides influence starch changes during the baking and storage of bread. These effects could be considered as the mechanism by which the bacterial α-amylase reduces starch retrogradation and acts as an anti-firming agent. More... »

PAGES

203-207

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s002170000205

DOI

http://dx.doi.org/10.1007/s002170000205

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1014979562


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