DETECTION OF FUNGI AND FUMONISIN B1 IN LOCAL RICE AND EVALUATING SOME DETOXIFICATION METHODS

Abstract

The study aimed to detect fungal contamination and FB1 concentration in local rice. Five isolations of Fusarium moniliform were tested for FB1 production in rice medium. The effects of five strategies to detoxify FB1 were also studied. The following fungal genera were isolated from the rice kernels: Alternaria spp., Aspergillus spp., Fusarium spp., Penicillium spp., Rhizoctonia spp. and Rhizopus spp. The samples of rice cleared from FB1. The five isolations varied in FB1 production on rice medium, and the concentration ranged from 524.3 to 825.3 µg /kg. The FB1 eliminated percentage by using calcium hydroxide 1%, 2%, active charcoal 1 %, 2 %, fructose 1 %, 2 %, parboiling, frying and microwaving 80w, 100w were 80.4%, 84.3%, 45.8%, 50.04%, 30.4%, 32.3%, 73.8%, 26.2% and 69.7%, 73.08% respectively.