生物加工过程2016，Vol.14Issue(2)：58-63,6.DOI:10.3969/j.issn.1672-3678.2016.02.011
亚硫酸钠预处理对木糖渣木质素的去除及纤维素酶水解的影响
Effect of corncob residue pretreatment by sodium sulfite on lignin removal and cellulose hydrolysis
摘要
Abstract
Corncob residue ( CCR) is often underutilized, as a waste burned at power plants. To valorize CCR, we studied the pretreatment of CCR by sodium sulfite to remove lignin, followed by enzymatic hydrolyzing the cellulose. The optimum reaction conditions were 12% dosage of sodium sulfite ( based on the dried weight of CCR) at pH 7 and 160 ℃ for 20 min. After the pretreatment, 77�45% lignin was removed and the cellulose content of CCR was increased to 85�17%. The residue was further hydrolyzed by cellulase (5 FPU/g) for 48 h. Glucose yield was 84�77%, whereas it was 70�58% when hydrolyzed by cellulase (20 FPU/g) without pretreatment by sodium sulfate.关键词
亚硫酸钠法预处理/木糖渣/酶水解/葡萄糖得率Key words
sodium sulfite pretreatment/corncob residue/enzymatic hydrolysis/glucose yield分类
化学化工引用本文复制引用
姜力凤,刘玉,于光,张跃冬,王海松..亚硫酸钠预处理对木糖渣木质素的去除及纤维素酶水解的影响[J].生物加工过程,2016,14(2):58-63,6.基金项目
国家自然科学基金（21206184、31370582）；制浆造纸科学与技术教育部重点实验室开放基金 （）
