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食品研究与开发:2019,40(16):165-171
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自然发酵腐乳中细菌多样性评价
(1.湖北文理学院食品科学技术学院鄂西北传统发酵食品研究所,湖北 襄阳 441053;2.恩施市公共检验检测中心,湖北 恩施 445000)
Evaluation of Bacterial Diversity in Natural Fermented Sufu
(1.Northwest Hubei Research Institute of Traditional Fermented Food,College of Food Science and Technology,Hubei University of Arts and Science,Xiangyang 441053,Hubei,China;2.Enshi Public Inspection and Testing Center,Enshi 445000,Hubei,China)
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投稿时间:2018-10-23    
中文摘要: 以腐乳为研究对象,利用变性梯度凝胶电泳(polymerase chain reaction-denaturing gradient gel electrophoresis,PCR-DGGE)技术与Miseq 高通量测序技术相结合的手段解析及评价细菌多样性,同时利用传统纯培养的方法对乳酸菌进行分离、纯化与鉴定。结果显示:腐乳中主要微生物为变形菌门(Proteobacteria,80.45%),其中绿脓杆菌属、不动杆菌属、鞘氨醇杆菌属、布丘氏菌属和草螺菌属细菌为优势细菌属。同时通过PCR-DGGE 和纯培养发现腐乳中鉴定出 7 株乳酸菌,其中 2 株为戊糖片球菌(Pediococcus pentosaceus),1 株为乳酸片球菌(Pediococcus acidilactici),4株为屎肠球菌(Enterococcus faecium)。由此可知腐乳中蕴含着丰富的微生物资源,同时屎肠球菌(Enterococcus faecium)为优势乳酸菌。
Abstract:The bacterial diversity of sufu in Enshi was analyzed and evaluated by polymerase chain reaction and denaturing gradient gel electrophoresis(PCR-DGGE)technologies and Miseq high throughput sequencing.The results showed that Proteobacteria(80.45%)was main microbial in sufu and the dominant bacteria generas were Pseudomonas,Acinetobacter,Sphingobacterium,Buttiauxella and Herbaspirillum.Furthermore,by using of PCR-DGGE and pure culture methods turned out that there were 7 strains of Lactic acid bacteria were isolated from sufo and 2 strains were Pediococcus pentosaceus,one strain was Pediococcus acidilactici and 4 strains were Enterococcus faecium.It showed that an abundant microbial resource in sufu,and Enterococcus faecium was the dominant lactic acid bacteria.
文章编号:201916029     中图分类号:    文献标志码:
基金项目:湖北省荆楚卓越工程师协同育人计划(201657);湖北文理学院2018年度学科开放基金项目(931102)
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