J4 ›› 2015, Vol. 14 ›› Issue (2): 60-63.

• 预防医学 • 上一篇    下一篇

云南传统发酵豆豉中细菌的分离与分子鉴定

  

  1. 云南农业大学食品科学技术学院,昆明650201
  • 收稿日期:2014-10-28 出版日期:2015-02-15 发布日期:2015-02-15
  • 作者简介:郑多多,硕士研究生,主要从事食品微生物及分子生物学研究.
  • 基金资助:

    云南省教育厅基金资助项目(2012Y372);云南农业大学学生科技创新创业基金资助项目(2014ZKX065)

Isolation and Molecular Identification of Bacteria from Yunnan Traditionally Fermented Douchi

  1. College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201,China
  • Received:2014-10-28 Online:2015-02-15 Published:2015-02-15

摘要:

目的:为了明确云南传统发酵豆豉中细菌的种类,对云南传统发酵的豆豉进行研究。方法:采用平板稀释法进行菌种
分离,利用分子生物学方法对分离到的菌株进行鉴定。结果:随机选择的130株细菌菌株属于3个属5个种,分别是芽胞杆菌
属(Bacillus)3个种、葡萄球菌属(Staphylococcus)1个种和肠杆菌属(Enterobacter)1个种。其中枯草芽胞杆菌(Bacillus subtilis)占所分离菌株的79.23%,是云南传统发酵豆豉的优势菌。结论:分离出的枯草芽胞杆菌有望作为实现云南传统发酵豆豉纯种
发酵的主要菌种。

关键词: 云南传统发酵豆豉, 细菌, 分子鉴定

Abstract:

Objective: To study Yunnan traditionally fermented Douchi and to identify kinds of bacteria in it. Methods: The bacteria were isolated from Douchi by the dilution method, and 130 strains of bacteria were randomly selected and identified by the molecular methods. Results: 130 strains isolated belonged to 3 genera and 5 species, including 3 species of the genus Bacillus, 1 species of the genus Staphylococcus, and 1 species of the genus Enterobacter. Bacillus subtilis accounting for 79.23% was the dominant species of all the bacteria from Yunnan traditionally fermented Douchi. Conclusion: Bacillus subtilis was expected as the main strain for Yunnan Douchi to be purely fermented.

Key words: Yunnan traditionally fermented Douchi, bacteria, molecular identification

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