食品科学 ›› 2008, Vol. 29 ›› Issue (3): 318-321.

• 生物工程 • 上一篇    下一篇

功能性双歧杆菌培养基的筛选与优化

 邵建宁, 龚伟中, 麻和平, 彭章普   

  1. 甘肃省科学院生物研究所; 甘肃省科学院生物研究所 甘肃兰州730000; 甘肃兰州730000;
  • 出版日期:2008-03-15 发布日期:2011-08-24

Screening and Optimization on Medium of Bifidobacterium

 SHAO  Jian-Ning, GONG  Wei-Zhong, MA  He-Ping, PENG  Zhang-Pu   

  1. Institute of Biology, Gansu Academy of Sciences, Lanzhou 730000, China  
  • Online:2008-03-15 Published:2011-08-24

摘要: 对常用4种双歧杆菌培养基进行筛选,确定出产双歧杆菌高的基础培养基,采用正交试验通过改变碳源、添加低聚果糖及pH的内源调节优化筛选出基础培养基。最佳培养基为在筛选出的基础培养基中加0.5%低聚果糖和1%碳酸钙。最佳培养基较筛选出的基础培养基双歧杆菌活菌数提高约8.1倍,培养时间缩短4h。双歧杆菌利用最佳培养基在37℃下厌氧培养20h,菌数可达8.9×109CFU/ml。

关键词: 双歧杆菌, 培养基, 筛选, 优化

Abstract: Base medium of Bifidobacterium was screened for maximum cell mass among 4 kinds of media, which was the best to obtain maximum cell counts for Bifidobacterium longum. By orthogonal design, on the base medium the optimal growth medium was obtained through changing carbon source, adding fructo-oligosaccharid and adjustment endogenesis of pH. In optimal growth medium the viable cell counts of B.longum is about 8.1 times higher than the base medium and the culture time shortens 4 h. The viable cell counts of B.longum can reach 8.9×109 CFU/ml in the optimal growth medium at 37 ℃ for 20 hours under anaerobic condition.

Key words: Bifdobactrium, media, screening, optimization