In this study, the isolation and characterization of strains of lactic acid bacteria isolated from milk and taken separately on agar agar DE Man, Rogosa and Sharpe (MRS) with Bromocresol Green is in Decatur. Peter The concept of culture medium green. When testing 2 examples showed that the two samples are lactose bacteria Bacillus spp. The result of the test is qualified to create lactic acid, which makes it very clear that there is a visible color change of medium. Formerly, green, yellow and purple dyes Crystal violet nature's steel rod. The test results are negative, catalase tase.
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