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首页> 外文期刊>Energy Conversion & Management >Promotion of H_2 production by microwave-assisted treatment of water hyacinth with dilute H_2SO_4 through combined dark fermentation and photofermentation
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Promotion of H_2 production by microwave-assisted treatment of water hyacinth with dilute H_2SO_4 through combined dark fermentation and photofermentation

机译：通过暗发酵和光发酵相结合的稀有H_2SO_4微波辅助处理水葫芦促进H_2的生产

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摘要

Water hyacinth was treated with microwave-assisted dilute H_2SO_4 to improve saccharification before enzymatic hydrolysis and H_2 production during dark fermentation. A maximum reducing sugar (RS) yield of 64.4 g/100 g total volatile solid (TVS) (96.1% of the theoretical RS yield) was achieved when water hyacinth was treated through microwave heating with 1% dilute H_2SO_4 for 15 min at 140 ℃ and then enzy-matically hydrolyzed for 72 h. During enzymatic hydrolysis, glucose was efficiently produced from the hydrolysis of cellulose that resulted from the disruption of the lignocellulosic structure of water hyacinth after microwave-assisted H_2SO_4 treatment. When the hydrolyzed water hyacinth was inoculated with H_2-producing bacteria to produce H_2 during dark fermentation, a maximum H_2 yield of 112.3 ml/g TVS was obtained. The major sugar compositions in the residual solution from dark fermentation were xylose and cellobiose (total RS utilization efficiency: 88.5%). Through a combination of dark fermentation and photofermentation, the maximum H_2 yield from water hyacinth was significantly increased from 112.3 ml/g TVS to 751.5 ml/g TVS, which is 75.2% of the theoretical H_2 yield.
机译：在黑暗发酵过程中酶水解和产生H_2之前，先用微波辅助稀H_2SO_4处理水葫芦，以提高糖化度。在140℃下通过1％的稀H_2SO_4微波加热水葫芦15分钟后，最大还原糖（RS）产量为64.4 g / 100 g总挥发性固体（TVS）（理论产量的96.1％）。然后酶促水解72小时。在酶促水解过程中，微波辅助H_2SO_4处理后，水葫芦木质纤维素结构的破坏导致纤维素水解，从而有效地产生了葡萄糖。当在深色发酵过程中将水解的水葫芦接种到产生H_2的细菌中以产生H_2时，最大H_2产量为112.3 ml / g TVS。黑暗发酵残留溶液中的主要糖成分为木糖和纤维二糖（总RS利用率为88.5％）。通过暗发酵和光发酵的结合，水葫芦的最大H_2产量从112.3 ml / g TVS显着增加到751.5 ml / g TVS，这是理论H_2产量的75.2％。

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  • 来源
    《Energy Conversion & Management》 |2013年第9期|329-334|共6页
  • 作者

    Jun Cheng; Ao Xia; Huibo Su; Wenlu Song; Junhu Zhou; Kefa Cen;

  • 作者单位

    State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;

    State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;

    State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China,COFCO Nutrition and Health Research Institute, Beijing 100020, China;

    State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China,Committee of High Technology Development District, fining 272000, China;

    State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;

    State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Water hyacinth; H_2 production; Dark fermentation; Photofermentation; Microwave heating; Enzymatic hydrolysis;

    机译：水葫芦;H_2的产生;黑暗发酵光发酵;微波加热;酶促水解;

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