J. Ogihara et al., PP-R, 7-(2-hydroxyethyl)-monascorubramine, a red pigment produced in the mycelia of Penicillium sp AZ, J BIOSCI BI, 91(1), 2001, pp. 44-47
A red pigment was extracted and purified from the mycelia of a newly isolat
ed strain of Penicillium sp,, Penicillium sp, AZ, which produced a soluble
violet pigment PP-V, 12-carboxyl-monascorubramine, in the culture fluid. Th
e red pigment, PP-R, was determined by FAB-MS and H-1 and C-13 NMR to be a
novel compound, 7-(2-hydroxyethyl)-monascorubramine.