2014•Journal of Shaanxi University of Science & TechnologyRequires access
Effects of alkali pretreatment of wheat straw pulp on its enzymatic hydrolysis
Luo Qin
Open publisher page 0 citations
Abstract
Alkali pretreatment and acidic xylanase treatment of wheat straw were performed. The analysis of the effect of different dosage of alkali,temperature on wheat straw pulp pentosan content and yield were discussed.The results showed:when alkali pretreatment with alkali content of 7%,the reaction temperature was 50 ℃,the reaction time was 60min and enzyme treatment with pH=5.5,xylanase dosage of 600IU·g-1,the reaction temperature was 50℃,enzymatic hydrolysis time was 120min conditions,wheat straw pulp pentosan content and pulp yield achieved the best effect.Finally,fiber morphology before and after enzyme treatment was observed by fiber quality analyzer,comparing alkali treatment and enzyme treatment and wheat straw,weight-average fiber length is reduced;fines content,curl index and kink level were increased.