Structural characterization, physicochemical properties and hypoglycemic activity of soluble dietary fibers from salt stressed mung bean sprouts

文献类型： 外文期刊

第一作者： Teng, Cong

作者： Teng, Cong;Liu, Jinge;Li, Suling;Ma, Kaiyang;Xu, Lujing;Feng, Jin;Chai, Zhi;Hu, Xindi;Lu, Yifei;Li, Ying;Liu, Jinge;Li, Ying

作者机构：

关键词： Dietary fiber structure; Insulin resistance; alpha-Glucosidase inhibitory activity; HepG2 cells; Sprouted mung beans

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2024 年 278 卷

页码：

收录情况： SCI

摘要： Low-salt stress germination is an effective way to improve the nutritional composition of food crops. A novel soluble dietary fiber (MS-SDF) was isolated from low-salt stress mung bean sprouts that were exposed to low-salt stress using anion exchange and gel permeation techniques. Structural analysis revealed that MS-SDF was a homogeneous heteropolysaccharide with an average molecular weight of 164.997 KDa. It featured a loose structure and contained the characteristic functional groups typical of polysaccharides. MS-SDF was composed of arabinose, galactose, glucose, and mannose with a molar ratio of 3.95:3.86:82.69:9.02. The structure was mainly composed of-*6)-alpha-D-Glcp-(1-*,-*5)-alpha-L-Araf-(1-*, and-*3,6)-alpha-D-Glcp-(1-* as the main chain. Branched at O-3 position with single beta-D-Manp-(1-* as major the side chain. Furthermore, in vitro hypoglycemic assays indicate that MS-SDF exhibits alpha-glucosidase inhibitory activity, significantly enhancing glucose uptake, glycogen synthesis, and pyruvate kinase activity in insulin-resistant HepG2 cells. Overall, MS-SDF could be used as a promising source of functional hypoglycemic foods.

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