Comparison of batch and fed-batch fermentations using corncob hydrolysate for bioethanol production

► The reducing sugar concentration reached 0.61 g/g DS after 48 h of enzymatic hydrolysis. ► The rate of the conversion was 0.64 g ethanol/g glucose for fed-batch fermentation. ► The conversion rate of ethanol from glucose was higher in fed-batch fermentation than it was in batch fermentation. ► Substrate inhibition effects were less pronounced for fed-batch fermentation than for batch fermentation.