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首页> 外文期刊>Energy >The effect of atmospheric pressure plasma pretreatment with various gases on the structural characteristics and chemical composition of wheat straw and applications to enzymatic hydrolysis
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The effect of atmospheric pressure plasma pretreatment with various gases on the structural characteristics and chemical composition of wheat straw and applications to enzymatic hydrolysis

机译：大气压等级预处理对各种气体对小麦秸秆的结构特征和化学成分的影响及酶水解的应用

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摘要

The effects of atmospheric pressure plasma pretreatment (PT) on the enzymatic hydrolysis (EH) of wheat straw were investigated, applying air, N-2 and CO2 as the plasma gases onto wet substrate environment for varying durations. Scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and compositional analyses were all used to characterize changes in the structure and composition of the wheat straw. The composition, structure, and surface of the straw were changed considerably through pretreatment, all of which promoted enzymatic hydrolysis. The optimal conditions (90 s, air plasma) merged advantages both very high biomass/sugars recoveries as well as high conversation yield of glucan and xylan with the overall production of 358.4 and 135.8 mg g(-1). respectively following 24 h EH. Considering the feasibility of PT at the optimum with subsequent EH to glucose and xylose production process of wheat straw, PT showed a positive impact on the energy balance of the process with an only input energy of 189.97MJ/t that led to net energy gain of 1297.8 MJ/t of the process. Energy-processing costs of PT and subsequent EH estimated to be $0.052 MJ/kg glucose and xylose, demonstrating the significant potential of PT to be scaled to industrial-level in biorefineries. (C) 2019 Elsevier Ltd. All rights reserved.
机译：研究了大气压等离子体预处理（Pt）对麦秸的酶水解（eH）的影响，将空气，N-2和CO 2作为等离子体气体施加到湿基底环境中，以改变持续时间。扫描电子显微镜，傅里叶变换红外光谱，X射线光电子体光谱和组成分析均用于表征麦秸的结构和组成的变化。秸秆的组成，结构和表面通过预处理而变化，所有这些都促进了酶水解。最佳条件（90秒，空气等离子体）合并了非常高的生物量/糖回收以及葡聚糖和木聚糖的高谈话产率，总产量为358.4和135.8 mg（-1）。分别在24小时后。考虑到麦秸的随后eH至葡萄糖和木糖生产过程的最佳选择性的可行性，PT对该过程的能量平衡显示了唯一的输入能量，其中纯度为189.97MJ / T，导致净能量增益1297.8 MJ / T的过程。 PT的能量处理成本和随后的EH估计为0.052 MJ / kg葡萄糖和木糖，证明PT的显着潜力在生物杂种中将其扩大到工业水平。 （c）2019 Elsevier Ltd.保留所有权利。

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  • 来源
    《Energy》 |2019年第1期|195-210|共16页
  • 作者

    Shaghaleh Hiba; Xu Xu; Liu He; Wang Shifa; Hamoud Yousef Alhaj; Dong Fuhao; Luo Jinyue;

  • 作者单位

    Nanjing Forestry Univ Coll Chem Engn Jiangsu Prov Key Lab Chem & Utilizat Agroforest B Nanjing 210037 Jiangsu Peoples R China|Nanjing Forestry Univ Jiangsu Key Lab Biomass Based Green Fuels & Chem Nanjing 210037 Jiangsu Peoples R China|Nanjing Forestry Univ Coinnovat Ctr Efficient Proc & Utilizat Forest Re Nanjing 210037 Jiangsu Peoples R China;

    Nanjing Forestry Univ Coll Chem Engn Jiangsu Prov Key Lab Chem & Utilizat Agroforest B Nanjing 210037 Jiangsu Peoples R China|Nanjing Forestry Univ Jiangsu Key Lab Biomass Based Green Fuels & Chem Nanjing 210037 Jiangsu Peoples R China|Nanjing Forestry Univ Coinnovat Ctr Efficient Proc & Utilizat Forest Re Nanjing 210037 Jiangsu Peoples R China;

    Chinese Acad Forestry Inst Chem Ind Forestry Prod Nanjing 210042 Jiangsu Peoples R China;

    Nanjing Forestry Univ Coll Chem Engn Jiangsu Prov Key Lab Chem & Utilizat Agroforest B Nanjing 210037 Jiangsu Peoples R China|Nanjing Forestry Univ Jiangsu Key Lab Biomass Based Green Fuels & Chem Nanjing 210037 Jiangsu Peoples R China|Nanjing Forestry Univ Coinnovat Ctr Efficient Proc & Utilizat Forest Re Nanjing 210037 Jiangsu Peoples R China;

    Hohai Univ Coll Agr Engn Nanjing 210098 Jiangsu Peoples R China;

    Nanjing Forestry Univ Coll Chem Engn Jiangsu Prov Key Lab Chem & Utilizat Agroforest B Nanjing 210037 Jiangsu Peoples R China;

    Nanjing Forestry Univ Coll Chem Engn Jiangsu Prov Key Lab Chem & Utilizat Agroforest B Nanjing 210037 Jiangsu Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Atmospheric pressure plasma; Wheat straw; Gas type; Exposure time; Enzymatic digestibility;

    机译：大气压等离子体;小麦秸秆;气体型;曝光时间;酶消化率;

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