PROBIOTIC PROPERTIES OF LACTIC ACID BACTERIA ISOLATED FROM MARE'S MILK

Abstract

 This work aims to identify and study the probiotic potential of lactic acid bacteria isolated from mare's milk. One of the main probiotic properties of the obtained strains is resistance to acidic pH media and bile acid salts, resistance to various types of antibiotics, adhesive ability and high antagonistic activity against pathogenic and opportunistic microorganisms. This article presents the study and isolation of lactic acid bacteria from mare's milk and presents the results of studying the biological properties of isolated strains and their identification. During the study, 98 isolates isolated from mare's milk samples were selected based on the biological properties of the strains. Some probiotic properties were determined using a total of 98 isolates, but the study continued with 41 strains. The most active strains that showed probiotic properties were selected from them, and the DNA model of the strains (deoxyribonucleic acid) was used in the genetic molecular diagnosis of microorganisms. When replicating the 16s gDNA zone, common bacterial primers for lactic acid bacteria were used. Based on 16s ribosomal gDNA analysis and carbohydrate profile, they were identified as Lactobacillus (L.) plantarum, L. Paracasei and L. casei.