Effect of Vitamins on Perylenequinones Production of Shiraia bambusicola

Abstract:

The effect of biotin,VB 1 ,VB 3 ,VB 5 ,VB 6 ,inositol,para aminobenzoic acid(PABA) and VC on the growth of shiraia sp.SUPER-H168 and perylenequinones production were studied with single factor experiment. The results showed that biotin and PABA strongly improved the biomass of cell, but low concentration of them could inhibit the pigment production. VB 5 and VB 1 slightly increased the production of pigment,and their optimum concentration were 0.5,0.05,0.05 mg/L. Although VB 6 could improve the growth of fungi,the synthesis of the pigments was inhibited. The mixed vitamins containing VB 1 ,VB 3 ,inositol,VB 5 and VC was added into 5L -fermentation medium with the optimum concentration because of their improvement of pigment yield,and their effect on the growth of shiraia sp.SUPER -H168 and pigment yield was studied. The final biomass and pigment yield were increased by 33.7% and 75% respectively compared to the experiment without vitamin.