Abstract:The fungus is subject to production of the pigment material,,through high-yield strains of pigmented strains screened,,and their various physical and chemical properties of pigment extraction technology research to the further development of the fungal pigment provide the scientific basis。 This paper describes the chemical composition of red pigment and its general nature,by liquid fermentation of Monascus red pigment production media studies to determine the red pigment has a maximum absorption peak at 505nm Department, Fermentation Monascus best days to 6~7 days,the appropriate medium for: rice flour 9%, NaNO3 0. 2%, KH2 PO4 0.1%, MgSO4 0. 2%. Stability of the red pigment found in red pigment at room temperature is relatively stable under the conditions,pH value of between 5 to 7 effects on the red pigment is relatively weak,biased towards extreme pH values of the red pigment stability is relatively large.。Indoor and outdoor effects of light on red pigment are not big.。Red pigment from the impact of common metal ions。Preservatives had no significant effect on red pigment,and not concentration。
Keywords:Monascus;Red Pigment ;Stability ;Extraction