食品科学 ›› 2009, Vol. 30 ›› Issue (19 ): 252-254.doi: 10.7506/spkx1002-6630-200919058

• 生物工程 • 上一篇    下一篇

乳酸菌发酵免疫乳特性研究

尤丽新1,杨 柳1,尤丽霞2,刘 艳1,张英楠1,徐 静1   

  1. 1.吉林农业大学发展学院 2.桦甸市公吉畜牧兽医工作总站
  • 收稿日期:2009-07-17 出版日期:2009-10-01 发布日期:2010-12-29
  • 通讯作者: 尤丽新

Fermentation of Immune Milk by Lactobacillus

YOU Li-xin1,YANG Liu1,YOU Li-xia2,LIU Yan1,ZHANG Ying-nan1,XU Jing1   

  1. 1. Development College, Jilin Agricultural University, Changchun 130600, China;
    2. Huadian City Gongji Animal Husbandry and Veterinary Station, Huadian 132400, China
  • Received:2009-07-17 Online:2009-10-01 Published:2010-12-29
  • Contact: YOU Li-xin

摘要:

以福氏志贺氏菌作为抗原免疫预产奶牛,获得高活性的免疫乳。同时采用保加利亚乳酸杆菌和嗜热链球菌进行混合发酵免疫乳和普通乳,并对发酵过程中发酵乳进行pH值、酸度、IgG含量及活性测定。结果表明:乳酸菌发酵免疫乳5h时,pH值达到4.69,酸度达到75.72°T,且免疫乳中IgG含量及活性基本保持不变,且并未发现免疫乳中特异性IgG对乳酸菌的发酵能力有不良影响。

关键词: 福氏志贺氏菌, 乳酸菌, 免疫乳, 发酵

Abstract:

In order to obtain immune milk with high activity, Shigella flexner was used as antigen for cows. Immune milk and common milk were combinatorially fermented by Lactobacillus bulgaricus and Streptococcus theumophilus, respectively. pH value, acidity, IgG activity and content in milk were determined during fermentation process. Results indicated that pH value and acidity were 4.69 and 75.72 °T, respectively, when immune milk was fermented by Lactobacillus at 37℃ for 5 h. Moreover, IgG activity and content in immune milk remained stable. No inhibition on fermentation capability of Lactobacillus due to specific IgG in immune milk was observed.

Key words: Shigella flexneri, Lactobacillus, immune milk, fermentation

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