食品科学 ›› 2002, Vol. 23 ›› Issue (9): 66-68.

• 工艺技术 • 上一篇    下一篇

引进直投型酸奶发酵剂菌种的分离及其复合发酵性能的研究

 刘慧, 张秀玲   

  1. 北京农学院食品科学系
  • 出版日期:2002-09-15 发布日期:2011-12-31

The Isolation and Identification of Direct-to -vat Yoghurt Culture Bacteria and Study of Composite Fermentation Quality

 LIU  Hui, ZHANG  Xiu-Ling   

  • Online:2002-09-15 Published:2011-12-31

摘要: 本文对引进酸奶发酵剂进行菌种分离与鉴定。结果表明,从发酵剂中分离到三株菌。其中一株鉴定为德氏乳杆菌保加利亚亚种,两株为嗜热链球菌。其在牛乳中发酵产酸产粘能力均较强。用之制作酸奶的最佳复合发酵接种量为4%,球菌与杆菌组合比例为2:2。产品质量优良。

关键词: 酸奶, 发酵剂, 菌种分离, 鉴定

Abstract: In this paper, the isolation and identification of Yoghurt culture bought from the market were studied.The result of the experiment showed: three bacteria strains from the Culture were isolated, where one was Lactobacillus bulgaricus and the others were Streptococcus thermophilus.They have Showed strong effect on the production of acid in milk. Using them to produce Yoghurt, the optimum proportion of culture and milk was 4%and the ratio of coccus and bacillus was 2 :2 in composite fermentation. The quality of the product was superior .

Key words: Yoghurt , Culture , Isolation , Identification