Efficacy of cell free supernatant from Bacillus subtilis ET-1, an Iturin A producer strain, on biocontrol of green and gray mold

The present study deals with the control of two important postharvest fruit diseases by application of the supernatant obtained from Bacillus subtilis strains ET-1. The bacteria, B. subtilis was grown in a bench-scale bioreactor and a cell free supernatant (CFS) rich in Iturin A was produced. During the entire bacterial culture time, it has been observed that Iturin A production started at the end of the exponential growth phase and a maximum...