【摘要】 研究了菌株紫红曲霉No.1-18-54液态发酵产红色素的发酵条件。结果表明,适宜的发酵条件为起始pH6.0,摇瓶装料量20mL/250mL三角瓶,接菌种龄48h,接种量10%(v/v),发酵温度30℃,摇床转速180r/min,发酵周期132h。实验研究还发现在发酵培养基中添加0.2%味精有利于红色素的生成,平均色价为66.7U/mL。更多还原

【Abstract】 The production parameters of red pigment by Monascus purpureus No.1-18-54 in submerged fermentation was optimized in this study.It was indicated that the highest yield of red pigment was achieved in 250 ml Erlenmeyer flask containing 20 ml cultures under the conditions as follows: original pH 6.0,inoculum prepared for 48 h,inoculum size 10%(v/v),temperature 30℃,shaking speed 180 r/min,cultivation 132 h.It was also observed that the addition of 0.2% monosodium glutamate was beneficial to the production of red pigment with the average color value of 66.7 U/ml.更多还原