Production of red pigments byMonascus purpureus in solid-state culture |
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Authors: | Bum-Kyu Lee Hai Yan Piao Wook-Jin Chung |
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Institution: | (1) Research Institute for Clean Technology, Department of Environmental Engineering and Biotechnology, Myong-Ji University, 449-728 Yongin, Korea |
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Abstract: | To maximize and sustain the productivity ofMonascus pigments, various environmental and nutritional parameters, such as the initial moisture content, pH, inoculum size, sample
size, and nutrient supplement, that influence pigment production were evaluated in solid-state cultures as follows: initial
moisture content, 50%; pH, 6.0; inoculum size 1 x 104 spore cells (grams of dry solid substrate)−1; sample size, 300 g. All supplementary nutrients (carbon, nitrogen, and mineral sources) added has inhibitory effects on
the cell growth and red pigment production. In open tray culture the maximum biomass yield and specific productivity of red
pigments were 223 mg DCW (grams of initial dry substrate)−1 and, 47.6 OD500 (DCW grams)−1 h−1, respectively. |
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Keywords: | environmental factors Monascus purpureus red pigments solid-states culture |
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