内循环气升式发酵罐发酵谷氨酸流加工艺的研究

Production Glutamic Acid in 50L Air-life Fermenter with Concentric Draft Tube

气升罐(ALR)具有结构简单、溶氧高、能耗低、对发酵液中微生物的剪切损伤弱等优点,因而引起了工业界的浓厚兴趣。张文会等研究证明ALR是适合谷氨酸(GA)发酵的。后期流加糖工艺能延长GA发酵后期高产酸的时间。为此,我们进行了ALR采用后期流加糖工艺生产GA的研究。

The late feeding sugar technology to produce glutamic acid in 50L air-lift fermenter with concentric draft tube was studied. The average glutamic acid yield was 93.8g/L, the average conversion of glutamic acid into glucose was 54.96%. The air-lift fermenter is more available to use the late feeding sugar technology to produce glutamic acid.