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Microbiota responses to different brans are conserved within individuals and associated with processing parameters

文献类型： 外文期刊

作者： Yao, Zhentao 3 ; Zhang, Ge 4 ; Wang, Xin 3 ; Li, Jinjun 2 ; Qi, Yuting 4 ; Jiang, Yuanrong 4 ; Gu, Jie 4 ; Zhu, Liying 2 ; Xu, Xianrong 1 ; Li, Xiaoqiong 2 ;

作者机构： 1.Hangzhou Normal Univ, Sch Publ Hlth, Hangzhou 311121, Peoples R China

2.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Food Sci, Hangzhou 310021, Peoples R China

4.Wilmar Shanghai Biotechnol Res & Dev Ctr Co Ltd, Shanghai 200137, Peoples R China

关键词： Rice bran; Wheat bran; Processing techniques; In vitro fermentation; Short-chain fatty acids; Gut microbiome

期刊名称：FOOD BIOSCIENCE （ 影响因子：5.2； 五年影响因子：5.4 ）

ISSN： 2212-4292

年卷期： 2024 年 60 卷

页码：

收录情况： SCI

摘要： Processing techniques have been shown to alter the nutritional composition of rice bran (RB) and wheat bran (WB), influencing their ability to modify microbiota, but a systematic comparison is currently lacking. This study aimed to comprehensively investigate the effects of various processing methods, including physical modifications (grinding, extrusion, and steam explosion), enzymolysis (amylase, hemicellulose, and xylanase), and their combinations, on the modification of gut microbiota by RB and WB. Processing methods significantly altered the nutrient components of RB and WB as well as their capacity for gas and SCFAs production during in vitro fermentation. The RB23 (amylase treatment), RB31 (extrusion and hemicellulose treatment), and RB33 (steam explosion and xylanase treatment) samples exhibited the highest production of total SCFAs and butyric acid during in vitro fermentation. Overall, the microbiota responses to brans were conserved within individuals and the processing methods explained 21.6% of the variance. Fermentation of RB23, RB31, and RB33 samples was observed to enhance the richness of gut microbiota, decrease the Firmicutes/Bacteroidetes ratio, and stimulate the growth of Butyricicoccus and Faecallbacterium, while inhibiting the growth of Bilophila , Fusobacterium , and Escherichia-shigella . These findings may provide valuable insights for the processing of RB and WB.

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