以木薯作为柠檬酸发酵原料，考察了通风比、搅拌转速及罐压对柠檬酸发酵的影响。在搅拌转速400 r/min，罐压0.10 MPa的条件下，分3个阶段控制通风比:0~12 h通风比1 ∶ 0.2(v/v)；12~32 h通风比1 ∶ 0.3(v/v)；32 h至发酵结束通风比1 ∶ 0.18(v/v)。在此条件下进行柠檬酸发酵，发酵周期52 h，产酸17.7%(m/v)，转化率达到98.3%。

The effects of ventilation ratio， stirring speed and pressure on the citric acid fermentation were investigated by using cassava as raw material. Under the conditions of 400 r/min and 0.10 MPa， a three-stage ventilation control strategy was developed: the ventilation ratio was kept at 1 ∶ 0.2(v/v) during the first 12 h， and maintained at 1 ∶ 0.3(v/v) for the following 20 h，and then increased to 1 ∶ 0.18(v/v) till the end of fermentation. Citric acid fermentation was carried out under this condition， the fermentation cycle was 52 h， the yield of citric acid was 17.7% (m/v)， and the conversion rate was 98.3%.

TQ921.1