In vitro digestibility and fermentability of naturally acetylated xylans from bamboo shavings

文献类型： 外文期刊

第一作者： Huang, Juqing

作者： Huang, Juqing;Xu, Qingxian;Zheng, Yi;Qian, Lei;Guan, Xuefang;Lin, Bin;Huang, Juqing;Xu, Qingxian;Zheng, Yi;Qian, Lei;Guan, Xuefang;Lin, Bin

作者机构：

关键词： Acetylated xylans from bamboo shavings; in vitro digestibility; in vitro fermentability by intestinal bacteria

期刊名称：COGENT BIOLOGY

ISSN： 2331-2025

年卷期： 2019 年 4 卷 1 期

页码：

收录情况： SCI

摘要： BSH, BSH-1 and BSH-2 are three naturally acetylated xylans obtained from bamboo shavings. The study investigated their in vitro digestibility and fermentability by intestinal bacteria. Results showed that BSH, BSH-1 and BSH-2 had low digestibility in simulated gastric and intestinal fluid, as their molecular weight decreased by 26.7%, 24.1% and 26.0%, respectively, after simulated digestion. BSH, BSH-1, BSH-2 and their corresponding digesta (BSH-D, BSH-1-D, BSH-2-D) could be fermented by Bacteroides spp. and Bifidobacterium spp. in different extent. The growth ratio of B. vulgatus and B. ovatus on the aforementioned six polysaccharides to glucose ranged from 20.8-36.3%. The growth ratio of Bi.breve, Bi.adolescentis, Bi.longum, Bi.animalis and Bi.bifidum on the previously cited six polysaccharides to glucose was 12.1%similar to 28.4%. The fermentability of BSH-D, BSH-1-D and BSH-2-D was slightly enhanced as compared to their corresponding undigested sample.

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