Evaluation of Starch Properties for Selecting Sorghum Planted under Environmental Stress with Superior Noodle-Making Properties

文献类型： 外文期刊

第一作者： Li, Xiao

作者： Li, Xiao;Kang, Xuemin;Hu, Jiyong;Gao, Wei;Cheng, Yue;Yu, Bin;Cui, Bo;Li, Xiao;Kang, Xuemin;Hu, Jiyong;Gao, Wei;Cheng, Yue;Yu, Bin;Cui, Bo;Sui, Jie;Wang, Jiangfei

作者机构：

关键词： fine structure; physicochemical properties; saline alkali land; sorghum starch

期刊名称：STARCH-STARKE （ 影响因子：2.3； 五年影响因子：2.6 ）

ISSN： 0038-9056

年卷期： 2023 年 75 卷 7-8 期

页码：

收录情况： SCI

摘要： KT and Nuo sorghum are planted in saline-alkali (SA) soil (KT-S, Nuo11-S) and nonsaline-alkali (NSA) soil (KT-S, Nuo11-NS) to demonstrate the impact of SA stress on the structure and properties of sorghum starch. SA decreases the amylose content (27.57%-20.43%) but increases the B-2 + B-3 chain content of branched amylopectin (18.86%-19.57%) in KT, in contrast to Nuo. The X-ray diffraction (XRD) and small-angle X-ray scattering (SAXS) results confirms the crystallinity of sorghum starch, and the degree of ordering in semicrystalline lamellae is arranged as follows: Nuo11-S > Nuo11-NS > KT-S > KT-NS. Differential scanning calorimetry (DSC) confirms that SA improves thermal stability of starch granules. The noodles made of sorghum starch exhibit significant hydrolysis resistance compared to common noodles, and a higher hydrolysis rate is shown in SA-starch noodles. Overall, it is essential to understand the fine structure and physicochemical properties of starch isolated from sorghum planted in different soils to help determine its appropriate applications.

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