自然科学版
陕西师范大学学报(自然科学版)
品工程与营养科学
保加利亚乳杆菌和嗜热链球菌在羊奶中的发酵特性研究
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李江,张富新*,任娟,王攀
(陕西师范大学 食品工程与营养科学学院, 陕西 西安 710062)
李江,男,硕士研究生,研究方向为畜产品加工原理与技术.* 通信作者:张富新,男,教授,硕士研究生导师,主要从事食品科学方面的研究.E-mail:fuxinzh@snnu.edu.cn.
摘要:
对从商业乳酸菌发酵剂分离纯化的8株乳酸菌在羊奶中的发酵特性进行了研究,结果表明:L.b-300和L.b-800菌株的产酸能力较强,S.t-499菌株的产黏能力较强,L.b-300和S.t-800菌株的产香能力较强,8株乳酸菌的后酸化能力均较弱.L.b-300和S.t-499菌株是适合发酵羊奶酸奶的乳酸菌.
关键词:
乳酸菌; 羊奶酸奶; 发酵特性
收稿日期:
2009-10-15
中图分类号:
TS252.1
文献标识码:
A
文章编号:
1672-4291(2010)03-0091-04
基金项目:
农业部公益性行业(农业)科研专项(3—45).
Doi:
Study on the fermentation characteristics of Lactobacillus bulgaricus and streptococcus thermophilus in goat milk
LI Jiang, ZHANG Fu-xin*, REN Juan, WANG Pan
(College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
The fermentation characteristics of lactic acid bacteria from the commercial start culture were studied in goat milk. The results showed that L.b-300 and L.b-800 strains have stronger acid-production capacity,and S.t-499 strain has stronger visco-production capacity while L.b-300 and S.t-800 strains with stronger odor-production capacity. The post-acidification capacities of eight lactic acid bacteria strains were weak.The L.b-300 and S.t-499 strains were suitable for goat milk fermentation.
KeyWords:
lactic acid bacteria; goat′s yoghurt; fermentation characteristics