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碱预处理对玉米秸秆酶解效果的影响

迟聪聪 柳咪 龚亚辉 李鸿魁 吴养育

陕西科技大学学报(自然科学版)Issue(5):13-18,6.
陕西科技大学学报(自然科学版)Issue(5):13-18,6.

碱预处理对玉米秸秆酶解效果的影响

Effects of alkaline pretreatment on the enzymatic hydrolysis efficiency of corn straw

迟聪聪 1柳咪 2龚亚辉 1李鸿魁 3吴养育1

作者信息

  • 1. 陕西科技大学轻工与能源学院陕西省造纸技术及特种纸品开发重点实验室,陕西西安 710021
  • 2. 齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南 250353
  • 3. 中兴通讯股份有限公司,陕西西安 710065
  • 折叠

摘要

Abstract

Alkaline pretreatment was done on corn straw powder under different conditions . The impact on the total yield of reducing sugar is investigated ,which will lay foundation for the fractal characterization of lignocellulose pretreatment and enzymatic hydrolysis .Results show that the solid content in the filtrate is higher for higher alkaline concentration ,w hich maybe the cause of lignin degradation ,w hile the variation trend of xylose yield is increased . There is remarkable difference of sugars yield throughout the total process among different pretreatment conditions .Based on the orthogonal experimental design ,the optimum condition within the range of our experiments is alkali dosage 15% at 70 ℃ for 6 hours ,which is evalu‐ated by the total reducing sugar yield .Range analysis results show that the order in effects of total sugars yield is :alkali concentration>temperature>reaction time .The variance analysis indicates that alkali concentration has significant impact on the total sugars yield ,w hile tem‐perature and time are insignificant .

关键词

玉米秸秆/碱预处理/酶水解

Key words

corn straw/alkaline pretreatment/enzymatic hydrolysis

分类

化学化工

引用本文复制引用

迟聪聪,柳咪,龚亚辉,李鸿魁,吴养育..碱预处理对玉米秸秆酶解效果的影响[J].陕西科技大学学报(自然科学版),2015,(5):13-18,6.

基金项目

教育部高等学校博士学科点专项科研基金项目(20126125120002);陕西省科技厅自然科学基础研究计划青年人才项目(2015JQ3077);齐鲁工业大学制浆造纸科学与技术教育部重点实验室开放基金项目(KF201401);陕西科技大学博士科研启动基金项目 ()

陕西科技大学学报(自然科学版)

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