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标题：Fermentation optimization of goat milk with Lactobacillus acidophilus and Biﬁdobacterium biﬁdum by Box-Behnken design
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作者：Guowei Shu ; Chunju Bao ; He Chen 等
期刊名称：Acta Scientarum Polonorum - Technologia Alimentaria
印刷版ISSN：1644-0730
电子版ISSN：1898-9594
出版年度：2016
卷号：15
期号：2
页码：151-159
DOI：10.17306/J.AFS.2016.2.15
出版社：Agricultural University of Poznan Press
摘要：BACKGROUND :Goat milk is only limited to the processing of goat milk powder and liquid milk, the products are mainly about milk powder and a few of them are made as milk tablet. Therefore, the study of probiotic goat milk will have great significance in the full use of goats and the development of the goat milk industry in China. METHODS :The effect of fermentation temperature (35°C, 37°C, 39°C), strain ratio (1:1:1, 2:1:1, 3:1:1) and inoculum size (4%, 5%, 6%) on viable counts of L. acidophilus and B. bifidum, total bacteria and sensory value during fermentation process of L. acidophilus and B. bifidum goat yogurt (AB-goat yogurt) was investigated. RESULTS :The optimum fermentation conditions for AB-goat yogurt were: fermentation temperature 38°C, the strain ratio 2:1:1, inoculum size 6%. Under the optimum conditions, the viable counts of B. bifidum, L. acidophilus, total bacteria and sensory value reached (4.30 ±0.11)×107 cfu/mL, (1.39 ±0.09)×108 cfu/mL, (1.82±0.06)×109 cfu/mL and 7.90 ±0.14, respectively. CONCLUSIONS :The fermentation temperature, the strain ratio and inoculum size had a significant effect on the fermentation of AB-goat yogurt and these results are beneficial for developing AB-goat yogurt.
关键词：Bifidobacterium bifidum;Lactobacillus acidophilus;fermentation;response surface methodology;skimmed goat milk
其他关键词：skimmed goat milk, Bifi dobacterium bifi dum, Lactobacillus acidophilus, fermentation, response surface methodology