甘肃牧区传统发酵乳制品中优良乳酸菌的分离筛选

邵建宁,张文齐,麻和平,刘彩云,王 洁,彭章普,赵昊星

中国酿造 ›› 2017, Vol. 36 ›› Issue (3) : 75-79.

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中国酿造 ›› 2017, Vol. 36 ›› Issue (3) : 75-79. DOI: 10.11882/j.issn.0254-5071.2017.03.016
研究报告

甘肃牧区传统发酵乳制品中优良乳酸菌的分离筛选

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Isolation and screening of excellent lactic acid bacteria from traditional fermented dairy products in Gansu pastoral area

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文章历史 +

摘要

从甘肃牧区传统发酵乳制品中分离筛选适合发酵乳生产的乳酸菌,对分离纯化的乳酸菌进行了发酵性能检测,筛选出产酸快、发酵活力高、凝乳时间短、后酸化能力弱、遗传性状稳定的菌株。筛选的6株菌株单菌发酵牛乳,均在6.5 h内凝乳,发酵乳酸度>70 °T,乳酸菌活菌数>1×108 CFU/mL,发酵乳组织状态、滋味、气味等感官指标良好,可作为生产发酵乳的优良乳酸菌菌种进行开发利用。

Abstract

The lactic acid bacteria suitable for fermented milk production from traditional fermented dairy products in Gansu pastoral area were isolated and screened, and their fermentation performances were detected. The lactic acid bacteria screened had fast acid production rate, high fermentation activity, short curd time, weak postacidification ability and stable inheritable character. The six strains of lactic acid bacteria were screened. The  fermented milks by six individual strain were all curded within 6.5 h, the acidity of fermented milk was more than 70 °T, the viable counts of lactic acid bacteria were more than 1×108 CFU/ml. The sensory indexes (including texture, taste, smell, etc) of fermented milk were good. The six strains could be used as excellent lactic acid bacteria for producing fermented milk to be developed and utilized.

关键词

传统发酵乳制品 / 乳酸菌 / 分离 / 筛选 / 发酵性能

Key words

traditional fermented dairy products / lactic acid bacteria / isolation / screening / fermentation performance

引用本文

导出引用
邵建宁,张文齐,麻和平,刘彩云,王 洁,彭章普,赵昊星. 甘肃牧区传统发酵乳制品中优良乳酸菌的分离筛选[J]. 中国酿造, 2017, 36(3): 75-79 https://doi.org/10.11882/j.issn.0254-5071.2017.03.016
SHAO Jianning, ZHANG Wenqi, MA Heping, LIU Caiyun, WANG Jie, PENG Zhangpu, ZHAO Haoxing. Isolation and screening of excellent lactic acid bacteria from traditional fermented dairy products in Gansu pastoral area[J]. China Brewing, 2017, 36(3): 75-79 https://doi.org/10.11882/j.issn.0254-5071.2017.03.016

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基金

甘肃省自然科学基金(1208RJZA291);甘肃省科学院应用研究与开发项目(2013JK-03)
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