食品科学 ›› 2011, Vol. 32 ›› Issue (1 ): 173-176.doi: 10.7506/spkx1002-6630-201101041

• 生物工程 • 上一篇    下一篇

新疆哈萨克族发酵酸驼乳中乳酸菌的分子生物学鉴定

武 运1,黄 彭2,李 远1,张晓燕1,许珍珍1,王冰峰2,石 静1   

  1. 1.新疆农业大学食品科学与药学学院 2.新疆农业大学科学技术学院
  • 收稿日期:2010-09-21 修回日期:2010-12-17 出版日期:2011-01-15 发布日期:2010-12-28
  • 通讯作者: 武运 E-mail:wuyunster@sina.com
  • 基金资助:

    国家公益性行业(农业)科研专项子课题(200803033-A09011)

Molecular Biological Identification of Lactic Acid Bacteria in Fermented Camel Milk as A Kazakh Traditional Food in Xinjiang

WU Yun1,HUANG Peng2,LI Yuan1, ZHANG Xiao-yan1,XU Zhen-zhen1,WANG Bing-feng2,SHI Jing1   

  1. 1. College of Food Science and Pharmaceutical Science, Xinjiang Agricultural University, Urumqi 830052, China;
    2. College of Science and Technology, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2010-09-21 Revised:2010-12-17 Online:2011-01-15 Published:2010-12-28
  • Contact: WU Yun1 E-mail:wuyunster@sina.com

摘要:

从新疆哈萨克族牧民发酵酸驼乳中筛选稳定、活力较强的乳酸菌菌株,用MRS 培养基和种子培养基进行活化后,经DNA 提取和PCR 扩增,将扩增成功菌株的PCR 产物测序结果通过NCBI 数据库比对,对酸驼乳中乳酸菌菌株的16S rDNA 序列和已报道的乳酸菌菌株16S rDNA 序列用MegAlign Fasta 软件进行系统发育分析表明:菌株A3 与Lactobacillus rhamnosus(HM162419)相似率为94.6%,菌株B1 与Lactococcus lactis subsp. lactis(EU872262)相似率为96.6%。

关键词: 乳酸菌, 16S rDNA, 分子鉴定, 发酵酸驼乳

Abstract:

The genetically stable and vigorous lactic acid bacteria strains isolated from fermented camel milk made by Kazakh herdsmen in Xinjiang autonomous region were cultured sequentially in MRS medium and seed medium, followed by DNA extraction, PCR amplification and 16S rDNA sequence analysis. The sequencing results were submitted to NCBI database for sequence alignment. The phylogenetic tree based on 16S rDNA sequence established with the MegAlign Fasta software showed that similarity was 94.6% for strain isolate A3 and Lactobacillus rhamnosus (HM162419) and 96.6% for strain isolate B1 and Lactococcus lactis subsp. lactis (EU872262).

Key words: actic acid bacteria, 16S rDNA, molecular identification, fermented camel milk

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