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| Study on the Improvement of Enzymatic Hydrolysis of Lignocellulose by Surfactant Under High Solid System |
| Received:July 07, 2020 |
| DOI：10.11980/j.issn.0254-508X.2020.12.006 |
| Key Words:high solid system enzymatic hydrolysis sodium lignosulfonate surfactant |
| Fund Project:天津市自然科学基金（18JCQNJC7570.0）；国家自然科学基金（21908167）;天津市高等学校大学生创新创业训练计划市级项目（201910057065）；国家级大学生创新创业训练计划项目（202010057003）。 |
| Author Name | Affiliation | Postcode | | GU Cheng | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 | | HUO Dan | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 | | HAN Xiao | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 | | CHEN Hui | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 | | YANG Qiulin | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 | | LI Lin | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 | | XUE Pengcheng | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 | | SI Chuanling | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 | | PEI Jicheng | Tianjin Key Lab of Pulp & Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457 | 300457 |
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| Abstract:In this research， sodium lignosulfonate was used as an assistant to improve the enzymatic hydrolysis efficiency of Eucalyptus powders pretreated with metal chloride under high solid system. The results showed that the addition of sodium lignosulfonate promoted the enzymatic hydrolysis efficiency of the high solid system. When the amount of sodium lignosulfonate was 0.4%， the glucose yield from enzymatic hydrolysis could reach to 93.72%， which was 12.5 percent higher than that of blank sample. In order to further improve the efficiency of enzymatic hydrolysis， sodium lignosulfonate was compounded with CTAB and Tween 80. The results showed that the efficiency of enzymatic hydrolysis of high solid system was promoted synergistically. When m （CTAB）∶m （sodium lignosulfonate） was 1.5∶1， the cellulose conversion rate was 99.56%； when m （Tween 80）∶m （sodium lignosulfonate） was 1∶1， the cellulose conversion rate was 99.98%， so nearly total of the cellulose could be converted to glucose. |
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