Physicochemical properties of polysaccharides from Hericium erinaceus by steam explosion pretreatment and its effects on human gut microbiota

文献类型： 外文期刊

第一作者： Chen, Shuang

作者： Chen, Shuang;Zhang, Fangfang;Liu, Liping;Feng, Jie;Zhang, Jingsong;Yang, Yan;Wu, Di;Liu, Yanfang;Chen, Shuang;Zhang, Fangfang;Liu, Liping;Feng, Jie;Zhang, Jingsong;Yang, Yan;Wu, Di;Liu, Yanfang;Chen, Shuang;Zhang, Fangfang;Liu, Liping;Feng, Jie;Zhang, Jingsong;Yang, Yan;Wu, Di;Liu, Yanfang;Guo, Qingbin

作者机构：

关键词： Hericium erinaceus; Steam explosion; beta-glucan; In vitro digestion; Fecal fermentation; Gut microbiota

期刊名称：FOOD HYDROCOLLOIDS （ 影响因子：11.0； 五年影响因子：11.3 ）

ISSN： 0268-005X

年卷期： 2024 年 156 卷

页码：

收录情况： SCI

摘要： Crude polysaccharides (HEP) extracted from Hericium erinaceus (H. erinaceus) using hot water soaking were focused in this study. The effects of steam explosion (SE) pretreatment (against H. erinaceus raw material) on the physical and chemical characteristics and in vitro fermentability of HEP were examined. SE increased the yield, the total sugar content, and beta-glucan content for HEP by 244.96%, 51.22% and 34.60%, respectively. SE treatment also reduced the molecular weight of HEP and released relative lower molecular fractions, as reflected by the elution profiles from HPSEC. During in vitro fermentation (by human feces) process, HEP from SE treated (HEQ) and untreated samples (HEW) both demonstrated capability in regulating gut microbiota (GM) by improving the abundance of beneficial bacteria such as Firmicutes and the production of short-chain fatty acids (SCFAs), while reducing the abundance of harmful bacteria such as Escherichia-shigella. Moreover, HEQ could increase the production of acetic, propionic and total SCFAs, while HEW could better increase the production of n-butyric acids. The findings of this study provide a reference for the efficient extraction and preparation of HEP, and highlighting its potential application in modulating GM.

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