Analysis of Pigment Compositions in Various Monascus Cultures
The pigments produced by <I>Monascus</I> are a mixture that includes azaphilone pigments. We simultaneously analyzed the 11 identified compounds present in <I>Monascus</I> pigments, and showed that there was a large variety of components produced by different strains and under different culture conditions. For example, pigments of <I>Monascus pilosus</I> NBRC4520 grown in potato dextrose broth were mainly composed of xanthomonascin A and monascorubrin. Ethanol extracts from cultured cells tended to contain more monascin and ankaflavin, and the nitrogen source also influenced the composition of pigment components produced. Moreover MK-1, a mutant of <I>M. pilosus</I> NBRC4520 that produces high levels of lovastatin and pigments (Miyake <I>et al.,</I> 2006ab), was found to produce large amounts of rubropunctamine, monascorubramine, monascin and yellow II.
- Food science and technology research
Food science and technology research 14(2), 194-197, 2008-03-01
Japanese Society for Food Science and Technology