Effects of Nitrogen Sources on Monascus Yellow Pigment Production by Monascus Mutant
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Abstract:
In this paper, the nitrogen sources of culture media for Monascus mutant MYM2 were optimized. Effects of some inorganic nitrogen sources and organic nitrogen sources on Monascus yellow pigment production were investigated. Results showed that the best inorganic nitrogen source, organic nitrogen source for the production of yellow pigment by MYM2 were 1% of corn steep liquor and ammonium chloride, with which the yields of Monascus yellow pigment productions reached 84.12 U/mL and 72.17 U/mL respectively. cultured in the medium containing the mixture of the corn steep liquor (1%) and ammonium chloride (1%), MYM2 could produce 96.51 U/mL of the Monascus yellow pigment .Both intracellular and extracellular colour hue were > 3.
