红曲色素固态发酵优化研究  

Optimization Study on the Solid Fermentation of Monascus Pigment

作　　者：代斌[1] 袁永俊[1] 李志强[1] 杨攀[1] 杜军[1] 程小雪[1] 

机构地区：[1]西华大学生物工程学院,四川成都610039

出　　处：《食品与发酵科技》2013年第1期46-49,共4页Food and Fermentation Science & Technology

摘　　要：以色价和桔霉素为指标,通过正交实验对红曲霉AS3.531固态发酵产红曲色素的发酵条件进行了优化研究。结果表明:装料量60g/250mL、温度37℃、pH 5.5、培养基初始含水量70%时色价达到最高;装料量40g/250mL、温度37℃、pH 5.0、培养基初始含水量60%时,桔霉素的生物合成量最低,综合考虑高色价和低桔霉素,最优发酵条件为装料量50g/250mL、温度37℃、pH 5.0、培养基初始含水量70%,此条件下色价为256U/g,桔霉素含量为0.0805μg/g。Choosing the pigment yield and citrinin as indexes, the conditions of the solid fermentation of Monascus AS3.531 producing Mormscus pigment were optimized by orthogonal test. The results show that： fermentation condi- tions were that rice 60 g/250 mL, 37 ℃, pH 5.5, water content 70%, the yield of pigment is highest; fermentation conditions were that rice 40 g/250mL, 37 ℃, pH 5.0, water content 60%, the biosynthesis amount citrinin is low- est. Considering the high color and low citrinin, the optimal conditions were found to be： rice 50 g/250mL, 37 ℃, pH 5.0, water content 70%, under these conditions, the yield of citrinin is 0.0805 μg/g, and pigment is 256U/g.

关 键 词：红曲色素 桔霉素 正交实验 

分 类 号：TQ925.7[轻工技术与工程—发酵工程]