EVALUATION OF THE EFFICIENCY OF CHITOSAN PRODUCED FROM THE STALKS OF AGARICUS BISPORUS BROWN AS AN ANTIFUNGAL AGAINST ASPERGILLUS FLAVUS AND REDUCING AFLATOXIN B1 : EVALUATION OF THE EFFICIENCY OF CHITOSAN PRODUCED FROM THE STALKS OF AGARICUS BISPORUS BROWN AS AN ANTIFUNGAL AGAINST ASPERGILLUS FLAVUS AND REDUCING AFLATOXIN B1 . IJMRCP. 2024;16((1):266-275. doi:10.28936/10.28936/(1)jmracpc11.2.2019