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首页> 外文期刊>Journal of Cleaner Production >Continuous biohydrogen production from poplar biomass hydrolysate by a defined bacterial mixture immobilized on lignocellulosic materials under non-sterile conditions
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Continuous biohydrogen production from poplar biomass hydrolysate by a defined bacterial mixture immobilized on lignocellulosic materials under non-sterile conditions

机译：在非无菌条件下，通过固定在木质纤维素材料上固定在木质纤维素材料上的限定细菌混合物的连续生物氢化物

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摘要

Lignocellulosic biowastes are rich in sugars and may be used as low-cost feed to produce environmentally friendly fuels such as hydrogen (H-2). Poplar biomass is available in large quantities as a sugar rich biowaste. Few studies have evaluated bacterial H-2 production using well-defined mixed cultures (DMC) under non-sterile continuous culture conditions. DMC composed of high H-2-producing bacteria may circumvent the potential risk of a single bacterial culture being out-competed under non-sterile conditions. The novelty of this study lies in the continuous production of H-2 from poplar biomass using DMC in immobilized state under non-sterile conditions. Under optimized continuous culture conditions with DMC immobilized on coconut coir, a H-2 yield of 2.83 mol/mol of hexose was steadily obtained over a period of 40 days, which was four-fold higher compared to that obtained with Bacillus thuringiensis. This approach may enable to meet the increasing demand for cleaner energy-rich fuels on a large-scale in a steady manner. (C) 2020 Elsevier Ltd. All rights reserved.
机译：木质纤维素生物母猪富含糖，可用作低成本的饲料以产生环保燃料，如氢气（H-2）。杨树生物量是大量的，作为糖丰富的Biowaste。在非无菌连续培养条件下，少量研究使用明确定义的混合培养物（DMC）评估细菌H-2产生。 DMC由高H-2产生的细菌组成，可能会使单一细菌培养的潜在风险在非无菌条件下竞争。本研究的新颖性在于在非无菌条件下使用DMC在杨树生物质中连续生产H-2。在优化的连续培养条件下，DMC固定在椰子益型上，在40天的时间内稳定地获得2.83mol / mol己糖的H-2产率，与用芽孢杆菌芽孢杆菌获得的相比，40倍。这种方法可以使得能够以稳定的方式满足对清洁能量的富含燃料的不断增加的需求。 （c）2020 elestvier有限公司保留所有权利。

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