1. A combined recrystallization and acetylation strategy for resistant starch with enhanced thermal stability and excellent short-chain fatty acid production.
- Author
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Chang, Ranran, Xu, KunJie, Zhang, Rao, Jin, Zhengyu, and Aiguo, Ma
- Subjects
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CORNSTARCH , *SHORT-chain fatty acids , *RECRYSTALLIZATION (Metallurgy) , *THERMAL stability , *ACETYLATION , *STARCH - Abstract
[Display omitted] • RS was obtained by 25% starch debranching, recrystallization at 50 °C, acetylation. • The peak gelatinization temperature values of samples reached above 111.4 °C. • RS contents of obtained samples after cooking for 30 min remained at 35.1%. • Recrystallization at 50 °C and acetylation increased SCFA produced by RS fermentation. In this study, resistant starch (RS) with enhanced thermal stability and excellent short-chain fatty acid production was obtained using recrystallization at 50 °C of debranched waxy maize starch followed by an acetylation strategy. RS sample obtained by debranching with a 25% high concentration of native starch combined with recrystallization at 50 °C (25DBS-50 °C P) and acetylated RS (25DBS-50 °C P A) exhibited high relative crystallinity of 69.4% and 64.2%, respectively. And the peak gelatinization temperature values of them reached 116.8 °C and 111.4 °C, and the RS contents of them after cooking for 30 min remained at 35.1% and 40.0%, respectively. The acetic acid yield of 25DBS-50 °C P A was higher than that of the control group. These results indicated that recrystallization at 50 °C combined with acetylation for debranched starch could be used as a new method for regulating the digestibility and fermentation properties while developing food with a low glycemic response and specific nutritional benefits. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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