Direct transformation of rice straw to electricity and hydrogen by a single yeast strain: Performance and mechanism
文献类型： 外文期刊
第一作者： Moradian, Jamile Mohammadi
作者： Moradian, Jamile Mohammadi;Yang, Kai;Chen, Han;Zhang, Yafei;Yong, Yang-Chun;Moradian, Jamile Mohammadi;Yan, Xuehua;Ali, Amjad;Yan, Xuehua;Haider, Syed Najeeb-Uz-Zaman;Ali, Amjad;Nazar, Mudasir
作者机构：
关键词： Rice straw; Microbial fuel cell; Yeast; Extracellular electron transfer; Humic acid
期刊名称：FUEL （ 影响因子：6.7； 五年影响因子：6.5 ）
ISSN： 0016-2361
年卷期： 2024 年 376 卷
页码：
收录情况： SCI
摘要： Lignocellulosic waste is one of the most abundant renewable energy sources. However, pretreatment or complex microbial consortia are usually required for the biological transformation into energy products. This study demonstrates the direct transformation of raw rice straw biomass into electricity and hydrogen without any pretreatment by employing a single yeast strain, Cystobasidium slooffiae JSUX1, in microbial fuel cells (MFCs). The yeast-MFCs exhibit a maximum power density of 28.56 +/- 2.54 mW/m2 2 with simultaneous production of hydrogen gas (4.9 +/- 0.52 L/m3) 3 ) from raw straw. Further analysis reveals that enzymes secreted by the yeast strain degraded rice straw into sugars or organic acids, serving as fuel for electricity and hydrogen production. In addition, humic acid (HA) and Fe-HA derived from biomass consumption serve as electron mediators for extracellular electron transfer (EET) in MFCs. This study demonstrates the power of the yeast strain for renewable energy recovery from straw, diversifying the toolbox for the lignocellulose industry.
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