应用表型和基因型分析28℃鲜湿米粉中主要优势菌
发布时间:2018-09-13 09:39
【摘要】:为研究鲜湿米粉中的优势菌,本文采用传统微生物培养方法和16S r DNA技术对28℃条件下鲜湿米粉的腐败菌进行分离鉴定,并了解鲜湿米粉贮藏期间的优势菌群与主要优势菌。结果表明,鲜湿米粉在28℃条件下,1 d后其菌落总数超过限量要求,2 d后感官出现明显腐败变质;经表型鉴定表明,其优势菌群包括肠杆菌科、乳酸菌、芽孢杆菌属,经基因型鉴定表明,肠杆菌属是导致鲜湿米粉腐败变质的主要优势菌。随着贮藏时间的延长,肠杆菌科占所有菌相的51.3%,是造成鲜湿米粉腐败变质的主要优势菌。
[Abstract]:In order to study the dominant bacteria in fresh wet rice flour, the traditional microbial culture method and 16s r DNA technique were used to isolate and identify the spoilage bacteria of fresh wet rice flour at 28 鈩,
本文编号:2240789
[Abstract]:In order to study the dominant bacteria in fresh wet rice flour, the traditional microbial culture method and 16s r DNA technique were used to isolate and identify the spoilage bacteria of fresh wet rice flour at 28 鈩,
本文编号:2240789
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