玉米皮水解液发酵生产饲料酵母的研究

A study on producing yeast by fermentation from cornhusk hydrolysate

本文研究了玉米皮水解液发酵生产饲料酵母的摇瓶间歇培养和分批补料培养条件 ,进行了10L反应器分批补料培养试验。研究结果表明 :间歇培养的适宜底物浓度为2 %糖浓度和7 %麸皮水 ,摇瓶间歇培养和分批补料培养的酵母浓度分别达到10.9g/L和21.6g/L ,10L反应器分批补料培养的酵母细胞浓度达20.7g/L。

The biotechnology of flask batch and fed-batch culture to produce yeast from cornhusk hydrolysate was studied and the fed -batch process in 10L bioreactor was conducted. Suitable concentration of materials in the medium were 2% saccharide and 7% bran extract. The yeast concentration in flask batch culture, flask fed-batch and 10L bioreactor reached 10.9g/L, 21.6g/L and 20.7g/L respectively.