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水热碳微球及其铁盐修饰,用于增强生物生产

Yong Pei¹, Jishi Zhang¹, Chen Zhou¹

¹College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China.

Bioresource technology

|June 22, 2023

概括

从废弃的玉米中提取的水热碳微球在黑暗发酵过程中显著增强 (H₂) 的产生. 修改后的微球提高了H2产量高达59%,为生物燃料应用促进了有益的微生物转移.

科学领域:

生物技术是生物技术.
可再生能源可再生能源是可再生能源.
材料科学材料科学材料科学

背景情况:

暗发酵 (DF) 是 (H₂) 生产的一个有前途的方法,但由于H₂的产量低,工业应用受到阻碍.
开发具有成本效益和高效的方法来改善DF中的H2演变对于可持续的生物燃料生产至关重要.

研究的目的:

调查从废弃玉米中获得的水热碳微球 (HCM) 和铁改性HCM (Fe-HCM) 在DF期间增强H₂生产的有效性.
阐明HCM和Fe-HCM影响DF代谢途径和微生物社区组成的机制.

主要方法:

废弃玉米的水热碳化产生HCM.
用铁对HCM进行修改以产生Fe-HCM.
在使用葡萄糖作为基质的DF过程中,将HCM和Fe-HCM作为添加剂应用.
对H2产量,可溶性代谢物和微生物群体组成的分析.

主要成果:

最高的H₂产量为119mL/g葡萄糖 (0.87molH₂/mol葡萄糖) 与HCM和154mL/g葡萄糖 (1.2molH₂/mol葡萄糖) 与Fe-HCM在600mg/L,比对照增加了24%和59%.
代谢物分析表明,HCM和Fe-HCM促进了基于黄油酸的DF.
微生物分析显示,随着HCM和Fe-HCM的增加,Firmicutes和Clostridium_sensu_stricto_1的丰度增加.

结论:

水热碳微球,特别是铁改性版本,是黑色发酵中生产的有效增强剂.
这些材料促进了向更高效的微生物群落和代谢途径的转变,提供了从废弃生物质生产生物燃料的可持续方法.

关键词:

黑暗发酵黑暗发酵的进化是因为的进化.热水碳的碳是一种热水碳.材料的特性材料的特性微生物组成微生物组成

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