NDLI: Starch granule size and amylopectin chain length influence starch in vitro enzymatic digestibility in selected rice mutants with similar amylose concentration.

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Starch granule size and amylopectin chain length influence starch in vitro enzymatic digestibility in selected rice mutants with similar amylose concentration.

Content Provider	Europe PMC
Author	Ramadoss, Bharathi Raja Gangola, Manu Pratap Agasimani, Somanath Jaiswal, Sarita Venkatesan, Thiruvengadam Sundaram, Ganesh Ram Chibbar, Ravindra N.
Abstract	In human diet, the products of starch digestion are a major energy source. Starch is stored as water insoluble granules composed of amylose and amylopectin. The susceptibility of starch granule to digestive enzymes is affected by starch granule size, shape, and composition. In this study, starch characteristics and in vitro enzymatic hydrolysis in three rice (Oryza sativa L.) mutants (RSML 184, RSML 278 and RSML 352) with similar amylose concentration (24.3–25.8%) was compared to parent ADT 43 (21.4%). The three mutants had reduced thousand grain weight and starch concentration but higher protein and dietary fiber concentrations. The mutant RSML 352 had small starch granules and reduced short glucan chains [Degree of polymerization (DP) 6–12] compared to the other two mutants (RSML 184 and RSML 278). The mutant RSML 352 had the highest hydrolytic index (HI) and least concentration of resistant starch (RS) compared to the other two mutants and parent rice ADT 43. The two rice mutants (RSML 184 and RSML 278) had reduced HI and increased RS concentration than the parent ADT 43. The results showed that starch granule size and amylopectin structure influence starch enzymatic digestibility and RS concentration. Electronic supplementary material The online version of this article (10.1007/s13197-018-3500-8) contains supplementary material, which is available to authorized users.
Related Links	https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6342807&blobtype=pdf
ISSN	00221155
Volume Number	56
DOI	10.1007/s13197-018-3500-8
PubMed Central reference number	PMC6342807
Issue Number	1
PubMed reference number	30728582
Journal	Journal of Food Science and Technology [J Food Sci Technol]
e-ISSN	09758402
Language	English
Publisher	Springer India
Publisher Date	2018-11-28
Publisher Place	New Delhi
Access Restriction	Open
Rights License	© Association of Food Scientists & Technologists (India) 2018
Subject Keyword	Amylopectin chain length In-vitro enzymatic hydrolysis Mutants Rice Starch granule size
Content Type	Text
Resource Type	Article
Subject	Food Science

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