摘要
采用乳酸盐为碳源从枝江大曲窖泥、出窖糟醅、黄水及大曲中分离纯化了16株乳酸利用菌。其中,从黄水和大曲中分离到多种降乳菌,黄水中的3株菌可将乳酸转化为乙醇,大曲中的多数降乳菌可转化乳酸为异丁酸、己酸、异戊酸、乙醇等风味成分。通过模拟固体发酵证明部分菌株在厌氧固体发酵条件下显示有降乳作用。
16 lactic acid-utilizing bacteria strains were isolated from Zhijiang Daqu pit mud, fermented grains, yellow water and Daqu by using lactate as carbon source. Among them, 3 strains isolated from yellow water could convert lactic acid into ethanol and most strains isolated from Daqu could convert lactic acid into flavoring compositions such as ethanol, isobutyric acid, caproic acid or isovaleric acid etc. The simulated solid fermentation proved that part of the isolated strains could decompose lactic acid under anaerobic solid fermentation conditions.
出处
《酿酒科技》
2009年第8期52-54,共3页
Liquor-Making Science & Technology
基金
湖北工业大学博士科研启动基金资助(32700223)
关键词
白酒
大曲
乳酸
降乳菌
liquor
Daqu starter
lactic acid
lactate
