Effect of Kitocohol^R on Proliferation of Virulent Bacteria

Abstract

Antiseptic activity of Kitocohol, a commercially developed reagent intended for use as an antiseptic for foodstuffs, was examined in term of effect on the proliferation of virulent bacteria in the presence of the reagent in culture media. It was effective to inhibit proliferation of gram positive bacteria, S. aureus, B. subtilis, E. faecalis and C. perfringens at the concentration of 0.1% in liquid media as well as on solid media. The effect was bactericidal and the effectiveness lasted stably for 4 weeks in both liquid media and solid media if it was kept in a well sealed bag. Gram negative bacteria, E. coli, lI: parahemolyticus, S. enteritidis and P. aeruginosa were less sensitive to the reagent even at the concentration of over 1%in the media. An antiseptic factor in the reagent could be chitosan, and the application for practical usage of Kitocohl was suggested.