Abstract
.The present food fermented food is widely popular both in domestic and abroad in food fermentation with lactic acid bacteria from the fermentation process. Lactic acid bacteria.It is used in the production of fermented food and used in food preservation. For added safety to consumers more and more. In this research, study the isolation of lactic acid bacteria.The samples were 10 fermented food samples are placed on the market, Phayao province cultured on medium De Man-Rogosa-Sharoe. Agar (MRS) with Bromocresol green as indicator, found lactic acid bacteria were 4 isolatesCocci number 1 isolates and the shape of 3 Bacilli isolates Preliminary test of lactic acid bacteria in the inhibition of pathogenic bacteria in the digestive system by means of Antagonism using. Nutrient of lactic acid bacteria.A limit on medium Muller Hinton agar (MHA) incubated at 37 optimum. Under conditions that do not use oxygen for 2 days. Pathogenic bacteria in the digestive tract is used in the tests is Escherichia infections, coliStaphylococcus aureus Bacillus cereus and found that lactic acid bacteria and 4 isolate. Could inhibit the growth of pathogenic bacteria in the digestive tract and 3 species.Agar well diffusion on medium Muller Hinton agar (MHA) found that lactic acid bacteria can inhibit pathogenic bacteria. Infections and Staphylococcus aureus Bacillus cereus has little due to clear Zone pits on nutrient.Escherichia coli. Compared with test Antagonism
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