利用气升式反应器生产红曲色素的研究

Studies on Producing Monascus Pigment by Using the Air lift Loop Reactors

分别使用 １ 升玻璃气升式反应器和 ５ 升不锈钢气升式反应器进行了红曲霉菌的深层培养。实验结果表明：采用多级风量控制和补料分批培养技术有利于色素的形成。在实验确定的较优条件下，１ 升反应器和５ 升反应器的发酵液总色价分别为３８０７ｕ／ｍ ｌ和 ３７１４ｕ／ｍ ｌ，发酵时间为 ８４ｈ。

The submerged fermentation of Monascus anka is carried out by 1 liter glass air lift loop reactor and 5 liter stainless steel loop reactor respectively.The experiment results show that multi air controlling and feed batch culture are favorable to the production of Monscus pigment.The highest pigment values of fermentation liquid in 1 liter reactor and 5 liter reactor are 380.7u/ml and 371.4u/ml respectively,the fermentation time is 84h.