Growth Inhibition of Aspergillus flavus IMI 242684 by Crude Extract of Penicillium sp.
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Abstract
Crude extract of Penicillium sp. isolate 480519 I06 ( 3) was tested for an ability to inhibit the growth of Aspergillus flavus IMI 242684 using paper disc diffusion assay on Sabouraud Dextrose Agar (SDA ). The effectiveness of extracts from culture filtrates and mycelia by different solvents,hexane, ethyl acetate, butanol and methanol, using liquid-liquid extraction were compared. The results show that hexane and ethyl acetate extracts from culture filtrates were most active against A. flavus IMI 242684. Hexane extract at 100 mg/ml gave the highest inhibitory zone of ~ 17.50 mm followed by ethyl acetate extract at 100 mg/ml ( inhibitory zone of ~ 9.87 mm) and hexane extract at 50 mg/ml (inhibitory zone of ~ 9.75 mm).
Keywords: aflatoxin, Aspergillus flavus, Penicillium, crude extrac
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