Competitive gram-positive and gram-negative bacteria as a factor in the regulation of the biological activity of Acinetobacter calcoaceticus IMV B-7241 surfactants

Abstract

The effect of live and inactivated cells and supernatants of Bacillus subtilis BT-2 and Enterobacter cloacae C-8 on the ability of Acinetobacter calcoaceticus IMV B-7241 surfactants to destroy bacterial biofilms was studied. The use of inductors increased biofilm destruction to 58–84% compared with 38–61% for surfactants produced without an inducer. The results demonstrate the possibility of regulating the biological activity of microbial surfactants using bacterial inductors.