食品科学 ›› 2006, Vol. 27 ›› Issue (3): 133-136.

• 工艺技术 • 上一篇    下一篇

纳豆菌微生态制剂的稳定性研究

 钟青萍, 王发祥, 钟士清, 吴文仪   

  1. 华南农业大学食品学院; 惠州学院电子科学系;
  • 出版日期:2006-03-15 发布日期:2011-09-06

Studies on Microecologic Stability of Bacillus natto

 ZHONG  Qing-Ping, WANG  Fa-Xiang, ZHONG  Shi-Qing, WU  Wen-Yi   

  1. 1.College of Food Science, South China Agricultural University, Guangzhou 510642, China;2. Electronics Department, College of Huizhou, Huizhou 516000, China
  • Online:2006-03-15 Published:2011-09-06

摘要: 分别考察温度、pH值、胆盐、消化酶对纳豆菌微生态制剂的影响,以及纳豆菌制剂在保藏过程中的稳定性。结果表明,纳豆菌制剂能耐酸碱、胆盐、胃蛋白酶和胰蛋白酶,能保证足够数量的活菌在肠道定植并发挥作用。而且,纳豆菌制剂对温度影响不敏感,80℃处理60min后,活菌数几乎无变化;在室温下保藏具有很好的稳定性,4℃冷藏具有较好的稳定性,但-20℃冷冻保藏效果较差。

关键词: 纳豆菌, 微生态制剂, 稳定性

Abstract: The microecological stability of the freeze-dried powder of Bacillus natto was investigated. The results showed thatthe powder could resist acid, alkali, pepsin, trypsin and gallbladder salt, to assure that enough Bacillus natto could successfullypass and survive in the intestines and play their role of microecological activity. Moreover, the powder shows excellent stabilitiesduring room temperature storage for 120 days after 80℃ heat treatment for 60 minutes, However, it shows less stable after-20℃ storage.

Key words: Bacillus natto, microecologics, stability