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
作者： Chen, Shuang 1 ; Zhang, Fangfang 1 ; Liu, Liping 1 ; Feng, Jie 1 ; Zhang, Jingsong 1 ; Yang, Yan 1 ; Wu, Di 1 ; Guo, Qingbin 4 ; Liu, Yanfang 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Edible Fungi Resources & Utilizat South, Beijing, Peoples R China
3.Natl Engn Res Ctr Edible Fungi, Shanghai 201403, Peoples R China
4.Tianjin Univ Sci & Technol, Coll Food Sci & Engn, State Key Lab Food Nutr & Safety, Tianjin 300457, Peoples R China
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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