红曲色素液体发酵研究
Liquid fermentation research of monascus pigment
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摘要: 对红曲霉产红曲色素的液体发酵培养基组成和发酵条件进行了研究.结果表明红曲霉发酵产红曲色素的最佳培养基组成为:葡萄糖30 g/L,硝酸钠15 g/L,硫酸锌0.05 g/L和硫酸锰0.05 g/L,培养基初始pH=3,装液量为30 mL/250 mL,培养时间为120 h.在此条件下,红曲霉发酵产红曲色素的色价达到16.91 U/mL.Abstract: The fermentation medium and conditions for monascus pigment production by monascus were studied. The results showed that the optimal medium composition for producing monascus pigments was as follows: glucose 30 g/L, NaNO3 15 g/L, ZnSO4 0.05 g/L and MnSO4 0.05 g/L, medium initial pH=3, liquid volume 30 mL/250 mL, incubation time 120 h. Under these conditions, color value of monascus producing monascus pigment reached 16.91 U/mL.
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Key words:
- monascus /
- monascus pigment /
- fermentation condition /
- orthogonal experiment
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