食品科学 ›› 2008, Vol. 29 ›› Issue (3): 50-52.

• 基础研究 • 上一篇    下一篇

酸马奶酒中粪肠球菌H1-1抑菌物质的提取与纯化研究

 贺银凤, 翟光超, 李少英, 田建军   

  1. 内蒙古农业大学食品科学与工程学院; 内蒙古农业大学食品科学与工程学院 内蒙古呼和浩特010018 韶关学院英东生物工程学院; 广东韶关512005; 内蒙古呼和浩特010018;
  • 出版日期:2008-03-15 发布日期:2011-08-24

Study on Extraction Method of Antibacterial Factor from Enterococcus faecalis H1-1 in Koumiss

 HE  Yin-Feng, DI  Guang-Chao, LI  Shao-Ying, TIAN  Jian-Jun   

  1. 1.College of Food Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China; 2.Yingdong College of Bioengineering, Shaoguan University, Shaoguan 512005, China
  • Online:2008-03-15 Published:2011-08-24

摘要: 本实验研究了分离自内蒙古锡林郭勒盟酸马奶酒中的一株粪肠球菌H1-1的抑菌物质的粗提与纯化。菌株发酵液经50%硫酸铵盐析沉淀,沉淀物经离子纤维素CM-52分离,分离后具有抑菌活性的物质进一步经葡聚糖凝胶G-25、G-100层析分离纯化。结果分离出的抑菌活性物质经聚丙烯酰胺凝胶电泳后呈现三条带,其分子量分别在33800、40100和42800D左右。

关键词:  , 酸马奶酒, 粪肠球菌, 抑菌物质, 提取与纯化

Abstract: The extraction and purification of antibacterial factor from one strain of Enterococcus faecalis H1-1 were studied, which was isolated from koumiss collected from a heardsman’s home in Xilinguole region, Inner Mongolia. The zymotic fluid Enterococcus faecalis H1-1 was precipitated with 50% ammonium sulphate. The sediment was separated with CM-52. The fractions were analyzed for their antibacterial abilities. The antibacterial fraction was isolated with Sephadex G-25 and then G-100 further. The antibacterial fraction isolated with G-100 was analysed with Tricine-SDS-PAGE electrophoresis and three bands were presented. Their molecular weights are 33800 D, 40100 D and 42800 D respectively.

Key words: koumiss, Enterococcus faecali, antibacterial factor, extraction and purification