食品科学

• 生物工程 • 上一篇    下一篇

牦牛奶酪中乳酸菌对抗生素的药敏性

杨吉霞,陈芝兰,贺稚非,陈宗道   

  1. 1.西南大学食品科学学院,重庆市农产品加工技术重点实验室,重庆 400715;
    2.西藏大学农牧学院科研处生物中心,西藏 林芝 860000
  • 出版日期:2014-09-15 发布日期:2014-09-12

Antibiotic Susceptibility of Lactic Acid Bacteria Isolated from Yak Milk Cheese

YANG Ji-xia, CHEN Zhi-lan, HE Zhi-fei, CHEN Zong-dao   

  1. 1. Chongqing Key Laboratory of Agricultural Product Processing, College of Food Science, Southwest University,
    Chongqing 400715, China; 2. Center of Biology, Agricultural and Animal Husbandry College of Tibet University, Linzhi 860000, China
  • Online:2014-09-15 Published:2014-09-12

摘要:

分析牦牛奶酪中乳酸菌对常用抗生素的药敏性。采用纸片扩散法测定分离自牦牛奶酪的39 株乳酸菌对8 种常用抗生素的药敏性。结果表明:39 株乳酸菌都有耐药性,主要对万古霉素、新霉素、链霉素和萘啶酮酸有抗性,抗性菌株分别达到了36 株(92.3%)、32 株(82.1%)、38 株(97.4%)和39 株(100%),菌株的耐药性有一定的种间差异,部分菌株有多重耐药性。

关键词: 牦牛奶酪, 乳酸菌, 抗生素, 耐药性

Abstract:

Objective: The antibiotic susceptibility of 39 lactic acid bacterial strains isolated from yak milk cheese was
evaluated in this study. Methods: Disc diffusion method was employed to test antibiotic susceptibility of these isolates
to eight most widely used antibiotics, including ampicillin, chloramphenicol, erythromycin, neomycin, nalidixic acid,
streptomycin, tetracycline and vancomycin. Results: These strains primarily presented resistance to four antimicrobial
agents: vancomycin, neomycin, streptomycin and nalidixic acid. The number of resistant strains was 36 (92.3%), 32 (82.1%),
38 (97.4%) and 39 (100%), respectively. There was variation in susceptibility between the species. Multidrug resistance
was identified in most isolates. Conclusion: This study provides valuable data on these isolates for the consideration of
application as probiotic bacteria or fermentation starters.

Key words: yak milk cheese, lactic acid bacteria, antibiotics, resistance

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