Researches regarding the role of lactoacids and probiotics products on inhibition of some contaminations microorganisms

I. Popescu, Mihaela Meşter
The purpose of our research is to find out the influence the probiotic lacto acid products have in inhibiting the development of some contaminating microorganisms. There were grown the following microorganisms: Escherichia coli, Proteus vulgaris and Bacillus subtilis, in an environment of nutritive agar; after that the probiotic lactic culture was inoculated by means of some sterile microcomprimats (Activia – Danone, Actimel – Danone, Napolife – Napolact, Extra-cream yogurt - Napolact). After impregnating the lactic culture, the samples were at 37ºC for 24 hours, and then there were noticed the development of an area on the microcomprimats, which means that the contaminating microorganisms stopped growing in that area.
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