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KMID : 1160220080360030183
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Mycobiology
2008 Volume.36 No. 3 p.183 ~ p.189
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Production of Aerial Conidia of Lecanicillium lecanii 41185 by Solid-State Fermentation for Use as a Mycoinsecticide
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Vu Van Hanh
Hong Suk-Il
Kim Keun
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Abstract
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The production of aerial conidia of Lecanicillium lecanii 41185, a highly virulent fungus, by solid-state fermentation was studied for use as a biocontrol agent against aphids. Among several agro-industrial solid media, steamed polished rice was found to produce the highest amount of aerial conidia. The optimal conditions for aerial conidia production were determined to be a 28.5% moisture content in the rice, 25oC culture temperature, rice pH of 6.0, 75% ambient relative humidity, 4-dold seeding culture, 0.6% KNO3, and 12 d of culture time. The conidia yield increased from 5.7 × 109 conidia/g polished rice to 18.2 × 109 conidia/g polished rice following application of these optimized conditions.
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KEYWORD
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Aerial conidia, Lecanicillium lecanii, Mycoinsecticide, Optimum condition, Solid-state fermentation
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