中国造纸学报2025，Vol.40Issue(2)：1-9,9.DOI:10.11981/j.issn.1000-6842.2025.02.01
超低浓酸预处理对麦草秸秆组分分离及纤维素酶水解效率的影响
Effects of Ultra-low Concentration Acid Pretreatment on the Separation of Wheat Straw Components and Cellulose Enzymolysis Efficiency
摘要
Abstract
In this study,the effects of ultra-low concentration acid types and pretreatment conditions on the fractionation of wheat straw and enzy-molysis were investigated.The results showed that formic acid pretreatment was the most effective.Under the pretreatment conditions of formic acid mass concentration of 1 g/L,the solid-liquid ratio of 1∶20,pretreatment temperature of 170℃,and time of 30 min,the 95.55%cellulose retention rate was achieved.The removal rate of hemicellulose and lignin were 81.66%and 38.42%,respectively,the total yield of xylose and xylo-oligosaccharide in the hydrolysate was 80.05%.In addition,the pretreatment residue obtained under this condition showed a glucose con-version of 83.37%after 72 h of enzymatic hydrolysis reaction.After two-step hydrolysis,the glucose and xylose yields was obtained to 95.32%.关键词
麦草秸秆/甲酸/预处理/酶水解Key words
wheat straw/formic acid/pretreatment/enzyme hydrolysis分类
轻工业引用本文复制引用
刘雪勤,吕英仁,朱若楠,刘小红,王兴杰,任俊莉..超低浓酸预处理对麦草秸秆组分分离及纤维素酶水解效率的影响[J].中国造纸学报,2025,40(2):1-9,9.基金项目
国家重点研发课题(2021YFC2101601) （2021YFC2101601）
国家自然科学基金国际合作项目(22361132543). （22361132543）
