The mediation mechanism of calcium ions on black bean type 3 resistant starch: Metabolomics, structure characteristics and digestibility

文献类型： 外文期刊

第一作者： Yang, Qingyu

作者： Yang, Qingyu;Zhang, Xiling;Gu, Chenqi;Li, Man;Hu, Xiufa;Gao, Yuzhe;Min, Zhongman;Zhang, Weijia;Yang, Qingyu;Gao, Yuzhe;Min, Zhongman;Wu, Weijie

作者机构：

关键词： Black beans; Metabolomics; Resistant starch; Calcium ions; Starch digestibility

期刊名称：FOOD CHEMISTRY （ 影响因子：8.5； 五年影响因子：8.2 ）

ISSN： 0308-8146

年卷期： 2024 年 446 卷

页码：

收录情况： SCI

摘要： The type 3 resistant starch (RS3) is beneficial for blood glucose management. A high quality RS3 was provided and its formation mechanism after calcium ion (Ca2+) treatment was investigated in this study. The metabolomics, structure and digestion properties were evaluated. Metabolomics was performed by untargeted UHPLCQ-TOF/MS, and a total of 11 significantly different metabolites was found. The NMR, ATR-FTIR, and XRD results showed that the degree of double helix decreased from 5.34 to 1.07, crystallinity decreased from 33.58 % to 19.88 %, and the amorphous region increased from 69.76 % to 78.33 %. Large particle polymers were observed by SEM on the granule surface of starch with Ca2+ treatment. Digestion test showed that Ca2+ increased the RS3 from 9.70 % to 22.26 %. The result indicated that Ca2+ induced the formation of chelates between Ca2+ and -OH, promoted the RS3 content and regulated carbohydrate metabolism. The study provided theoretical basis for producing low-glycemic black bean foods.

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