Effect Antimicrobial Activity of Chitosan against S.Aureus in Locally Bovine Soft Cheese in Babylon Prevalence

Abstract

This work focused on antimicrobial activity of chitosan , the result showed a pronounced antimicrobial activity against S. aureus with different inhibition zones. The highest activity was found against S.aureus by using  1% concentration with inhibition zones 18mm. S.aureus was completely inhibited at 1^st day when the cheese was preserved in 4⁰C with 1% of chitosan while in 0.5 % chitosan, the count of S.aureus was reduced until complete inhibition of the growth at 5^rd day. So, chitosan is expected to show good potential application for the inactivation of microorganisms in food and use as natural food preservation material.