仔猪粪便中乳酸菌的分离、鉴定及其抑菌特性的研究张素辉,曹国文,徐登峰,王孝友,蒋安(重庆市畜牧科学院荣昌402460)摘要从健康仔猪新鲜粪便中分离到3株乳酸菌,对其进行了属和种的生化鉴定,结果为,菌株La与Lt均为嗜酸乳杆菌(Lactobacillusacidophilus),Ls为乳酸乳杆菌(Lactobacilluslactis)
对分离的三株乳酸菌的代谢产物进行了体外抑菌试验研究,结果表明,3株菌乳酸菌代谢产物对大肠杆菌、沙门氏菌和金黄色葡萄球菌都有较明显的抑制作用;对金黄色葡萄球菌的抑菌效果最好,沙门氏菌次之,对大肠杆菌的抑菌效果相对较弱
关键词:乳酸菌;分离鉴定;抑菌特性Isolation-identificationandbacteriostasis-bacteriostasisoflactobacillusfrompiglet′sdiachoremaZhangsuhui,CaoGuowen,QiuJinjie,XuDengfeng,WangXiaoyou,Jiang-an(ChongQingAcademyofAnimalSciencesChongQingRongChang)AbstractIsolated3strainslactobacillusfrompiglet'sfreshfecesandidentifieditsgenusandstrain,,resultsare:theLsstrainisLactobacilluslactis,theLaandLtstrainsareLactobacillusacidophilus
Andcarriedthemetabolicproductofthreestrainsinthestudyofinhibitionactivity
Theseexperimentsprovedthat,alltheLactoba