Mannitol improves Monascus pigment biosynthesis with rice bran as a substrate in Monascus purpureus.

ABSTRACT: To reduce the production cost of Monascus pigments (MPs), the utilization of rice bran (RB), an agricultural waste product, as a substrate in submerged fermentation was conducted in this study. To improve MP production, different nutritional ingredients including mannitol (Man), NH₄NO₃ (AN), ZnSO₄ (Zn), and optimization (Opti), which was a synthesis of the three above ones, were added in rice bran (RB) medium. The yields of MPs, pigment constituents, and growth and development of Monascus purpureus M9 were investigated in this study. Man had the maximum color value of 3,532 U/g, which was 18.69 times more than that of RB and reached up to 76.65% of the value of rice (Rice) fermentation. Man significantly increased the production of two orange

SUBMITTER: Chen D 

PROVIDER: S-EPMC10753769 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature