Investigation of lactobacillus gasseri ma-2 as probiotic candidate

Abstract

Characterization of lactic acid bacteria in human milk has become an interesting field fordeveloping new probiotics. Therefore, some probiotic properties of Lactobacillus gasseri MA2 strain isolated before from human breast milk were screened in vitro. MA-2 strain exhibitedsafety aspects with no hemolytic activity (γ-hemolytic activity) and sensitivity to penicillin G,cloxacillin and chloramphenicol. The remarkable tolerance to various acid, bile, pepsin andpancreatin conditions was determined with high survival rate. The strain also presentedsignificant auto-aggregation (93%) as well as co-aggregation activity with pathogenicmicroorganisms. L. gasseri MA-2 originated from human milk exhibited promising probioticproperties.