Sclerotia growth and carotenoid production of Penicillium sp PT95 during solid state fermentation of corn meal

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Abstract

Using corn meal as fermentation substrate, the effect of some factors, fermentation time and supplementation of saccharide and nitrogen sources as well as vegetable oil, on the sclerotia growth and carotenoid production of Penicillium sp PT95 during solid state fermentation were studied. When PT95 strain was grown on the amended medium by supplementing of 3g NaNO3, 10g maltose and 2.5g soybean oil per liter of salt solution to basal medium for 20 days, the dry sclerotia weight and carotenoid yield reached 9.70 g and 5260 μg / 100 g of substrate, respectively. Without supplementation only 5.36g dry sclerotia and 2149μg carotenoid / 100 g of substrate was attained.

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