JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

氢氧化钙预处理对3种秸秆酶解糖化效率的影响

宋丽丽 ,  谢建松 ,  张宁亮 ,  陆美霞

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宋丽丽, 谢建松, 张宁亮, 等. 氢氧化钙预处理对3种秸秆酶解糖化效率的影响[J]. 轻工学报, 2017, 32(4): 21-29. doi: 10.3969/j.issn.2096-1553.2017.4.004
引用本文: 宋丽丽, 谢建松, 张宁亮, 等. 氢氧化钙预处理对3种秸秆酶解糖化效率的影响[J]. 轻工学报, 2017, 32(4): 21-29. doi: 10.3969/j.issn.2096-1553.2017.4.004
shu
SONG Li-li, XIE Jian-song, ZHANG Ning-liang and et al. Effect of lime pretreatment to the enzymatic saccharification efficiency of three kinds of straws[J]. Journal of Light Industry, 2017, 32(4): 21-29. doi: 10.3969/j.issn.2096-1553.2017.4.004
Citation: SONG Li-li, XIE Jian-song, ZHANG Ning-liang and et al. Effect of lime pretreatment to the enzymatic saccharification efficiency of three kinds of straws[J]. Journal of Light Industry, 2017, 32(4): 21-29. doi: 10.3969/j.issn.2096-1553.2017.4.004
shu

氢氧化钙预处理对3种秸秆酶解糖化效率的影响

  • 郑州轻工业学院 食品与生物工程学院, 河南 郑州 450001;

  • 中粮工程科技(郑州)有限公司, 河南 郑州 450002

  • 基金项目: 河南省科技攻关项目（152102110104）；郑州轻工业学院博士基金项目（2013BSJJ005）；郑州轻工业学院大学生科技创新项目（2015DC097）

  • 中图分类号: TK6

Effect of lime pretreatment to the enzymatic saccharification efficiency of three kinds of straws

  • College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China;

  • COFCO Engineering and Technology (Zhengzhou) Co., Ltd., Zhengzhou 450002, China

  • Received Date: 2016-07-13
    Accepted Date: 2016-12-03
    Available Online: 2017-07-15

    CLC number: TK6

  • 摘要: 选取玉米秸秆、稻草秸秆和小麦秸秆为原料，研究不同氢氧化钙预处理条件对3种秸秆酶解糖化效率的影响.结果表明，小麦秸秆和稻草秸杆的最高还原糖转化率分别为60.38%和46.77%（90 ℃条件下预处理2 h），玉米秸秆达到最高还原糖转化率（56.82%）则需进一步提高预处理温度（121 ℃条件下预处理1 h），3种秸秆中小麦秸秆较适合使用氢氧化钙预处理方式.对预处理秸秆木质纤维素各成分与红外微观结构分析表明，氢氧化钙预处理能显著降解小麦秸秆中的木质素，木质素选择性降解促进了木质纤维素大分子空间结构屏障的破坏，保留了更多纤维素以供后期酶解糖化利用，进而提升了秸秆酶解糖化效率.
    Abstract: Corn straw,rice straw and wheat straw were chosen as the substrates,and the effect of lime pretreatment time and temperature were comparatively examined by determination of the enzymatic transformation ratio.Results showed the yield of reducing sugar of wheat straw and rice straw could reach 60.38% and 46.77% respectively after lime pretreatment of 2 h at the temperature of 90 ℃.In contrast,corn straw needed more higher pretreated temperature of 121 ℃ for 1 h,whose yield of reducing sugar reached 56.82%.Wheat straw was more suitable for the pretreatment using lime.Further microstructural analysis of the straw samples was investigated by infrared spectrum,results showed that lime pretreatment could significantly degrade lignin in wheat straw. The selective degradation of lignin promoted the destruction of the spatial structure barrier of lignocellulosic macromolecules,retained more cellulose for later enzymatic saccharification, and improved straw enzymatic saccharification efficiency.
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  • 收稿日期:  2016-07-13
  • 修回日期:  2016-12-03
  • 刊出日期:  2017-07-15
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宋丽丽, 谢建松, 张宁亮, 等. 氢氧化钙预处理对3种秸秆酶解糖化效率的影响[J]. 轻工学报, 2017, 32(4): 21-29. doi: 10.3969/j.issn.2096-1553.2017.4.004
引用本文: 宋丽丽, 谢建松, 张宁亮, 等. 氢氧化钙预处理对3种秸秆酶解糖化效率的影响[J]. 轻工学报, 2017, 32(4): 21-29. doi: 10.3969/j.issn.2096-1553.2017.4.004
shu
SONG Li-li, XIE Jian-song, ZHANG Ning-liang and et al. Effect of lime pretreatment to the enzymatic saccharification efficiency of three kinds of straws[J]. Journal of Light Industry, 2017, 32(4): 21-29. doi: 10.3969/j.issn.2096-1553.2017.4.004
Citation: SONG Li-li, XIE Jian-song, ZHANG Ning-liang and et al. Effect of lime pretreatment to the enzymatic saccharification efficiency of three kinds of straws[J]. Journal of Light Industry, 2017, 32(4): 21-29. doi: 10.3969/j.issn.2096-1553.2017.4.004
shu

氢氧化钙预处理对3种秸秆酶解糖化效率的影响

  • 郑州轻工业学院 食品与生物工程学院, 河南 郑州 450001;
  • 中粮工程科技(郑州)有限公司, 河南 郑州 450002
  • 收稿日期: 2016-07-13
  • 录用日期: 2016-12-03
  • 网络出版日期: 2017-07-15
基金项目:  河南省科技攻关项目（152102110104）；郑州轻工业学院博士基金项目（2013BSJJ005）；郑州轻工业学院大学生科技创新项目（2015DC097）

摘要: 选取玉米秸秆、稻草秸秆和小麦秸秆为原料，研究不同氢氧化钙预处理条件对3种秸秆酶解糖化效率的影响.结果表明，小麦秸秆和稻草秸杆的最高还原糖转化率分别为60.38%和46.77%（90 ℃条件下预处理2 h），玉米秸秆达到最高还原糖转化率（56.82%）则需进一步提高预处理温度（121 ℃条件下预处理1 h），3种秸秆中小麦秸秆较适合使用氢氧化钙预处理方式.对预处理秸秆木质纤维素各成分与红外微观结构分析表明，氢氧化钙预处理能显著降解小麦秸秆中的木质素，木质素选择性降解促进了木质纤维素大分子空间结构屏障的破坏，保留了更多纤维素以供后期酶解糖化利用，进而提升了秸秆酶解糖化效率.

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