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

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...

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Bibliographic Details
Published in:Cogent biology 2018-01, Vol.4 (1), p.1491087
Main Authors: Huang, Juqing, Xu, Qingxian, Zheng, Yi, Qian, Lei, Guan, Xuefang, Lin, Bin
Format: Article
Language:English
Subjects:
Acetylated xylans from bamboo shavings
Digestibility
Fermented food
in vitro digestibility
in vitro fermentability by intestinal bacteria
Intestine
Molecular weight
Polysaccharides
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Summary: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%~ 28.4%. The fermentability of BSH-D, BSH-1-D and BSH-2-D was slightly enhanced as compared to their corresponding undigested sample.
ISSN:2331-2025
2331-2025
DOI:10.1080/23312025.2018.1491087