Effect of some bioagents on inhbiting toxins produced by Aspergillus flavus in peanut pods
2010
Abd El-Moneim, M.L. | Tolba, A.M. | Gomaa, A.M.
Obtained data showed that both bioagents inhibit linear growth of A. flavus. T. harzianum gave better antagonistic effect and gave 77.7 % reduction in linear growth whereas B. subtilis gave only 66.66%. All treatments reduced the different four types of Aflatoxins, produced by A. flavus in peanut pods. T. harzianum gave the best result in reducing the amount of toxins and 87.8% reduction in toxins production was observed whereas B. subtilis gave only 76.18% reduction compare with the control treatment. Positive correlation between storage periods of peanut pods and reduction of toxin was observed in case of treatment of peanut pods with both antagonistic agents. Regarding number of applications, treated peanut pods with T. harzianum once gave best result when compared with application for two or three times. On the contrary applying B. subtilis for two or three times showed more efficacy in reducing amount of toxins produced by A. flavus. Data also showed that dose of (20gm) T. harzianum or B. subtilis formula/1 kg of pods was the most effective dose in reducing the amount of toxins. Positive correlation between increasing period of storage up to three months and percentage of reduction in toxin producing by A. flavus was also noticed.
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