Degumming of Natural Crude Bamboo Fiber with Compound Enzyme

The hemicellulase/pectinase compound enzyme was used to degum natural bamboo fiber,and the influences of the proportion of the two enzymes and treatment time on degumming were investigated.The results showed that with increasing hemicellulase/pectinase proportion and lengthening degumming time,the weight loss percentage first rose,then became little changed and finally declined gradually and that breaking strength decreased with increasing weight loss percentage.Optimum results were obtained in the treatment of a hemicellulase/pectinase ptopotyion of 1.5 mg/2.0 mg,a degumming time of 2.5 h,a temperature of 38 ℃ and a pH value of 5.2.Under these conditions the weight loss percentage of bamboo fiber was 11.6% and the breaking strength was 48.81 cN(a decrease by 8.20%) with a low CV of 2.48%.