饲料研究2024，Vol.47Issue(22)：89-94,6.DOI:10.13557/j.cnki.issn1002-2813.2024.22.016
1株牛源非解乳糖链球菌的分离鉴定及其益生特性的研究
Study of isolation and identification of a Streptococcus alactolyticus of bovine origin and its probiotic properties
摘要
Abstract
The experiment aimed to screen for gut colonizing bacterial strains from different intestinal mucosal segments of the Ferhe F1cow(♂Fleckvieh×♀Holstein)and to study their probiotic properties.The experiment used 16S rRNA gene sequencing analysis to identify the species of isolated strains and conducted in vitro probiotic function research on the isolated and identified lactic acid bacterial strains to comprehensively evaluate the characteristics of the isolated strains.The results showed that one lactic acid bacterial candidate strain was isolated from the different intestinal mucosal segments of the Ferhe F1cow identified by 16S rRNA sequencing,it was a Streptococcus alactolyticus,named F2.This strain had potential inhibitory effects on Escherichia coli,Staphylococcus aureus,and Salmonella.The strain has high hydrophobicity,auto-aggregation,acid tolerance,bile tolerance,and antibiotic sensitivity.The study indicates that lactic acid bacteria isolated from bovine origin of intestinal mucosa may have the potential to become probiotics.关键词
牛源/乳酸菌/分离鉴定/益生特性Key words
bovine origin/lactic acid bacteria/isolation and identification/probiotic properties分类
农业科技引用本文复制引用
魏欣,庞小童,聂存喜,张文举,尹君亮,白雪,陈宁,吴妍妍..1株牛源非解乳糖链球菌的分离鉴定及其益生特性的研究[J].饲料研究,2024,47(22):89-94,6.基金项目
石河子大学高层次人才科研启动项目(项目编号:RCZK202359) （项目编号:RCZK202359）
兵团重大科技"揭榜挂帅"项目(项目编号:2023AB078) （项目编号:2023AB078）
兵团重大科技项目(项目编号:2021AA004) （项目编号:2021AA004）
兵团自然科学支持计划(项目编号:2024DB027) （项目编号:2024DB027）
