The production of conidia of entomopathogenic Beauveria bassiana by solid-state fermentation was studied for the development
of a biocontrol agent against aphid Myzus persicae. The optimal conditions for conidia production on polished white
rice were 40% moisture content, 25oC culture temperature, 2-day-old seeding culture grown in 3% corn meal, 2% rice bran,
2% corn steep powder medium, initial conidia concentration of 107 conidia/g in the wet rice, 10% inoculum size, and use
of a polyethylene bag as a container. The polyethylene bag containing inoculated rice was hand-shaken every 12 hr during
fermentation. Using optimal conditions, the maximum conidia production obtained was 4.05 g conidia/100 g dry rice after
14 days of cultivation, a rate 2.83 times higher than conidia yield of pre-optimization.
The production of conidia of entomopathogenic Beauveria bassiana by solid-state fermentation was studied for the developmentof a biocontrol agent against aphid Myzus persicae. The optimal conditions for conidia production on polished whiterice were 40% moisture content, 25oC culture temperature, 2-day-old seeding culture grown in 3% corn meal, 2% rice bran,2% corn steep powder medium, initial conidia concentration of 107 conidia/g in the wet rice, 10% inoculum size, and useof a polyethylene bag as a container. The polyethylene bag containing inoculated rice was hand-shaken every 12 hr duringfermentation. Using optimal conditions, the maximum conidia production obtained was 4.05 g conidia/100 g dry rice after14 days of cultivation, a rate 2.83 times higher than conidia yield of pre-optimization.
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