食品科学

• 生物工程 • 上一篇    下一篇

基于混合培养和高通量测序分析云南传统发酵豆豉中活性细菌群落

李晓然,龚福明,李 洁,罗义勇,柳陈坚   

  1. 1.昆明理工大学生命科学与技术学院,云南 昆明 650500;2.德宏职业学院基础系,云南 芒市 678400
  • 出版日期:2014-04-15 发布日期:2014-04-18

Active Bacterial Community Diversity in Traditional Fermented Soybean in Yunnan Using Mixed Culture and Barcoded Pyrosequencing

LI Xiao-ran, GONG Fu-ming, LI Jie, LUO Yi-yong, LIU Chen-jian   

  1. 1. Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China;
    2. Basic Department, Dehong Vocational College, Mangshi 678400, China
  • Online:2014-04-15 Published:2014-04-18

摘要:

选择两个使用传统发酵的豆豉样品,先进行混合预培养,再对混合培养液进行DNA提取和16S rRNA基因扩增及焦磷酸测序,最后对得到的序列进行分析。结果表明:两个样品在序列相似度为98%时多样性均较高。其中XG_1的主要细菌为肠球菌、甲基营养型芽孢菌和乳酸片球菌,在XG_2中的主要细菌为枯草芽孢杆菌和甲基营养型芽孢杆菌。

关键词: 发酵豆豉, 混合培养, 细菌群落, 焦磷酸测序

Abstract:

In this study, bacterial communities in two samples of traditional fermented soybean in Yunnan province wereanalyzed by the combined use of mixed culture and 16S rRNA gene barcoded pyrosequencing. Results revealed highbacterial community diversities of both samples at a 0.02 cutoff. In sample XG_1, the major bacteria were Enterococcusspp., Bacillus methylotrophicus and Pediococcus acidilactici. In sample XG_2, the abundant bacteria were Bacillus subtilisand B. methylotrophicus.

Key words: fermented soybean, mixed culture, bacterial community, pyrosequencing