In vitro digestibility and fermentability of naturally acetylated xylans from bamboo shavings
文献类型： 外文期刊
作者： Huang, Juqing 1 ; Xu, Qingxian 1 ; Zheng, Yi 1 ; Qian, Lei 1 ; Guan, Xuefang 1 ; Lin, Bin 1 ;
作者机构： 1.Fujian Acad Agr Sci, Inst Agr Engn & Technol, Fuzhou 350003, Fujian, Peoples R China
2.Fujian Key Lab Agr Prod Food Proc, Fuzhou 350003, Fujian, Peoples R China
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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