期刊论文

中文

食品与机械

1003-5788

2023

39

04

26-31+169

10.13652/j.spjx.1003.5788.2022.81091

湖南省自然科学青年基金项目(编号:2021JJ40242)。

本校为第一机构

目的:筛选出产胞外多糖能力强的乳酸菌菌株。方法:从实验室分离保藏的乳酸菌中挑选40株乳酸菌,以商业菌株鼠李糖乳杆菌(L.rhamnosus GG,LGG)为阳性对照菌株,采用菌落拉丝法和苯酚—硫酸法筛选出胞外多糖产量高的...展开更多 目的:筛选出产胞外多糖能力强的乳酸菌菌株。方法:从实验室分离保藏的乳酸菌中挑选40株乳酸菌,以商业菌株鼠李糖乳杆菌(L.rhamnosus GG,LGG)为阳性对照菌株,采用菌落拉丝法和苯酚—硫酸法筛选出胞外多糖产量高的菌株,对其进行体外抗逆性、安全性和抗生素敏感性试验,并对最终得到的菌株进行表型特征分析和种属鉴定。结果:对40株乳酸菌进行初筛和复筛,得到了10株胞外多糖产量...

Objective:To screen lactic acid bacteria strains with strong ability to produce extracellular polysaccharide.Methods:Forty strains of lactic acid bacteria isolated and preserved in the laboratory were selected,and the commercial strain L.rhamnosus GG(LGG)was used as the...MORE Objective:To screen lactic acid bacteria strains with strong ability to produce extracellular polysaccharide.Methods:Forty strains of lactic acid bacteria isolated and preserved in the laboratory were selected,and the commercial strain L.rhamnosus GG(LGG)was used as the positive control strain.The strains with high extra...