Junying Bai , Chuan Zhang , Jie Cui , Mingcong Fan , Yan Li , Linhua Huang , Li Wang
{"title":"Analysis of the effect of oat β-glucan on gut microbiota and clarification of their interaction relationship","authors":"Junying Bai , Chuan Zhang , Jie Cui , Mingcong Fan , Yan Li , Linhua Huang , Li Wang","doi":"10.1016/j.jcs.2024.103921","DOIUrl":null,"url":null,"abstract":"<div><p>Oat <em>β</em>-glucan is catabolized by gut microbiota, however, the interaction relationship between <em>β</em>-glucan and gut microbiota is unclear. We aim to investigate the primary intestinal microbial species responsible for oat <em>β</em>-glucan degradation and explore their interaction. The result of <em>in vitro</em> fermentation showed that <em>β</em>-glucan significantly altered gut microbiota composition and primary microbial species responding to <em>β</em>-glucan was <em>Lactobacillus</em>. A total of 4 strains of <em>Lactobacillus murinus</em> were <em>in vitro</em> obtained and inoculated in the medium containing <em>β</em>-glucan as the sole carbon source to verify their association with <em>β</em>-glucan, and result showed that 4 strains of <em>L. murinus</em> could indeed degrade <em>β</em>-glucan. Genome analysis suggested that 4 strains of <em>L. murinus</em> contained abundant carbohydrate enzymes-encoding genes, among which genes encoding glycoside hydrolases family 1 (GH1) were most likely associated with <em>β</em>-glucan degradation. Further analysis revealed that GH1 could bind to <em>β</em>-glucan units through hydrogen bonding. Our study provides a novel insight into the research on interplay between dietary components and gut microbiota, and strategy for the exploration of potential carbohydrate hydrolase from gut microbiota for cereal <em>β</em>-glucan processing.</p></div>","PeriodicalId":15285,"journal":{"name":"Journal of Cereal Science","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Cereal Science","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0733521024000791","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Oat β-glucan is catabolized by gut microbiota, however, the interaction relationship between β-glucan and gut microbiota is unclear. We aim to investigate the primary intestinal microbial species responsible for oat β-glucan degradation and explore their interaction. The result of in vitro fermentation showed that β-glucan significantly altered gut microbiota composition and primary microbial species responding to β-glucan was Lactobacillus. A total of 4 strains of Lactobacillus murinus were in vitro obtained and inoculated in the medium containing β-glucan as the sole carbon source to verify their association with β-glucan, and result showed that 4 strains of L. murinus could indeed degrade β-glucan. Genome analysis suggested that 4 strains of L. murinus contained abundant carbohydrate enzymes-encoding genes, among which genes encoding glycoside hydrolases family 1 (GH1) were most likely associated with β-glucan degradation. Further analysis revealed that GH1 could bind to β-glucan units through hydrogen bonding. Our study provides a novel insight into the research on interplay between dietary components and gut microbiota, and strategy for the exploration of potential carbohydrate hydrolase from gut microbiota for cereal β-glucan processing.
期刊介绍:
The Journal of Cereal Science was established in 1983 to provide an International forum for the publication of original research papers of high standing covering all aspects of cereal science related to the functional and nutritional quality of cereal grains (true cereals - members of the Poaceae family and starchy pseudocereals - members of the Amaranthaceae, Chenopodiaceae and Polygonaceae families) and their products, in relation to the cereals used. The journal also publishes concise and critical review articles appraising the status and future directions of specific areas of cereal science and short communications that present news of important advances in research. The journal aims at topicality and at providing comprehensive coverage of progress in the field.