Influence of Pectinase Pretreatment on Fiber-refining of Industrial Hemp Stalk

To reduce the difficulty of fiber refining,and the energy consumption and pollution emission due to the fiber refining,the influence of different pectin enzyme treatment on industrial hemp stalk fiber refining and fiber size was studied by single factor method. The results showed that the degree of fiber refining and the ratio of 1 ~ 3fiber could be improved after the hemp stalk treated by pectinase enzyme. When the treating temperature was50℃,with the pectinase enzyme concentration was 1. 0 percent and the treating time was 3 h,the fiber size was optimized and the ratio of 1 ~ 3 fiber was improved after the hemp stalk were refined with disc refiner.