among the ways of pigment production, microbial synthesis has gained more interest for high growth rate, easy extraction and high yield. pigments are used in the food industry as natural colorants and preservatives; they also have pharmaceutical applications. in this study, fungus monascus purpureus ptcc 5303 was used to produce red, orange and yellow pigments. at first, significant variables w...

Abstract Monascus pigments (MPs) with different color characteristics, produced by submerged fermentation of purpureus M9, have potential application in food industry. In the present study, effects and regulatory mechanisms ammonium nitrate (AN) on characteristics MPs were investigated. The concentration intracellular was significantly decreased when subjected to AN. hue lightness value indicat...

The fungus Monascus produces several secondary metabolites of different pigment hues. These pigments have shown various biological activities. In this study, purpureus extracts were tested ( in vitro ) against Penicillium expansum MTCC 4900, Rhizopus stolinfer 10595, and Aspergillus niger 8652 for antifungal activity. UV–visible spectrum M. fermented rice showed λmax at 395, 425, 500 nm. This i...

Monascus Color Y-001, a natural food pigment produced from purpureus Y-001 fermentation, was administered orally by gavage to 4 Beagle dogs/sex/group for 90 days at doses of 0 (vehicle: 0.1% Tween 80, 10 mL/kg bw), 1, 5 and 25 mg/kg bw/day. In the clinical observations, vomiting/vomitus (dark red watery substance or undigested feed) observed males females in 25, but not 1 bw/day group relativel...