江西农业学报2012,Vol.24Issue(8):77-80,4.
一株植物乳杆菌的分离鉴定及特性研究
Isolation and Identification of A Strain of Lactobacillus plantarum and Its Characters
辛国芹 1辛国民 2徐海燕 1武香玉 1张志焱 1谢全喜1
作者信息
- 1. 山东宝来利来生物工程股份有限公司,山东泰安271000
- 2. 山东省安丘市畜牧局,山东安丘262114
- 折叠
摘要
Abstract
Twelve strains of lactic acid bacteria were isolated from pickles by the enrichment culture method. A strain PS -9 with better acid - forming performance was screened out through the determination of pH - value of the fermentation liquor. It was identified as Lactobacillus plantarum according to its morphology, physiological and biochemical characteristics, and 16S rDNA sequence analysis. The results showed that PS -9 had distinct resistance to acid and bile salt, and its survival rate was 85.2% and 37.2% respectively when it was inoculated in the environment of pH 2. 0 and bile salt concentration 0. 4%. The inhibitory zone diameters of this strain to avian Escherichia coli 078 and Staphylococcal sp. C56011 were both more than 18 mm.关键词
分离鉴定/生物学特性/系统发育分析/植物乳杆菌Key words
Isolation and identification/ Biological characteristics/ Phylogenetic analysis/ Lactobacillus plantarum分类
农业科技引用本文复制引用
辛国芹,辛国民,徐海燕,武香玉,张志焱,谢全喜..一株植物乳杆菌的分离鉴定及特性研究[J].江西农业学报,2012,24(8):77-80,4.