[Enzymatic hydrolysis of corn cob residues from furfural production]

The effect of pretreatment, enzyme loading, substrate concentration and reaction time on enzymatic hydrolysis of corn cob residues from furfural production was studied, and was compared with dilute acid pretreated corn cob. The result shows that the corn cob residues from furfural production couldn't be used directly due to higher acidity and inhibitor such as furfural etc. The enzymatic hydrolysis of the corn cob residues could be enhanced by water of Ca(OH)2 pretreatment. The best condition of corn cob residues after washed is 20 FPU/g substrate, 1:9 (substrate: buffer). The concentration and productivity of reducing sugar was 35 g/L and 30% at 48 h, and the conversion of cellulose was 61%.