粮油食品科技2016，Vol.24Issue(2)：80-84,5.
发酵前及发酵后包被粪肠球菌微胶囊抗胁迫作用的研究
Study on the stress resistance of encapsulated enterococcus faecalis pre -fermented and post -fermented
摘要
Abstract
The enterococcus faecium were pre -fermented encapsulated by the method of emulsionand in-ternal gelation and post -fermented encapsulated by spraying dry.The stress resistance of the both micro-encapsulation formulations to the storage,high temperature,gastric juice and intestinal juice were evalua-ted compared with free enterococcus faecium.The results showed that the survival rates of pre -fermented encapsulated enterococcus faecium were 19.46% and 6.90% higher respectively than those of un -capsu-lated and post -fermented encapsulated enterococcus faecium after storage at room temperature for five months.The resistance of enterococcus faecium to the high temperature at 110 ℃ and 130 ℃ was signifi-cantly increased (P <0.05)by the pre -fermented encapsulation compared with post -fermented en-capsulation and free.The survival rates of pre -fermented encapsulated and post -fermented encapsula-ted enterococcus faecium were significantly increased (P <0.05)compared with those of uncoated ones when they were treated in the simulated gastric conditions for 30,90 and 180 min.The pre -fermented encapsulated was particularly evident.The results were similar in mimic environments of gastric juice and intestinal juice.The survival rates of pre -fermented encapsulated and post -fermented encapsulated en-terococcus faecium were increased 19.17% and 14.18%(P <0.05)compared with un -capsulated ones after they were treated in the simulated intestinal conditions for 180 min.These results suggest that the re-sistance of encapsulated enterococcus faecium is much higher than that of un -capsulated ones.The pre -fermented encapsulation can be a more effective way than post -fermented encapsulation for protecting probiotic microbes and has a high value of practical application.关键词
微囊化益生菌/发酵前包被/发酵后包被/抗胁迫/粪肠球菌Key words
microencapsulated probiotics/pre -fermented encapsulated/post -fermented encapsulated/stress resistance/enterococcus faecalis分类
化学化工引用本文复制引用
张琳,婷婷,綦文涛,李杰,李爱科..发酵前及发酵后包被粪肠球菌微胶囊抗胁迫作用的研究[J].粮油食品科技,2016,24(2):80-84,5.基金项目
“十二五”农村领域国家科技计划课题（2013BAD10 B02）；动物营养学国家重点实验室2013年度开放课题（2004DA125184F1306）；北京市现代农业产业技术体系家禽创新团队资金 （）
