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增强碳捕获和利用:Clostridium luticellarii的混合营养生长使用甲醇和来有效减少CO2

Quinten Mariën¹, Alberte Regueira², Camille Petrognani¹

¹Center for Microbial Ecology and Technology (CMET), Ghent University, Frieda Saeysstraat 1, 9052 Ghent, Belgium; Center for Advanced Process Technology for Urban Resource Recovery (CAPTURE), Frieda Saeysstraat 1, 9052 Ghent, Belgium.

Bioresource technology

|December 27, 2025

概括

将气和甲醇结合起来,可以使Clostridium luticellarii的二氧化碳 (CO2) 转化率提高四倍. 这种混合营养的增长增强了二氧化碳的吸收,以可持续生产有价值的有机酸.

科学领域:

生物技术是生物技术.
环境科学环境科学
微生物学微生物学

背景情况:

碳捕获和利用 (CCU) 对减缓气候变化至关重要.
微生物为将二氧化碳 (CO2) 转化为有价值产品提供了可持续的途径.
作为一种乙烯基原体的Clostridium luticellarii利用H2或甲醇将二氧化碳转化为有机酸.

研究的目的:

为了研究Clostridium luticellarii的混合营养生长,使用H2和甲醇作为电子捐赠体.
克服基于H2 (质量转移,选择性) 和基于甲醇 (能源密集型) 的二氧化碳转换的局限性.
提高二氧化碳的吸收和生产有价值的有机酸.

主要方法:

在H2,甲醇和两种基质的混合物上种植Clostridium luticellarii.
热力学路径分析以了解代谢反应.
对单碳催化物的代谢模型的流量平衡分析.

主要成果:

与H2和甲醇的混合营养生长增强了CO2的同化,与单独甲醇相比高达四倍.
产品光谱在各种条件下保持相似,包括酸,黄油酸和异黄油酸.
热力学分析表明,H2压力抑制了酸盐氧化,有利于其他途径.

结论:

将H2和甲醇作为电子捐赠物的结合提高了Clostridium luticellarii中的CO2转化效率.
在混合营养生长过程中增强的细胞内还原剂相当于增加净二氧化碳同化.
这一战略具有可持续生产黄油和同黄油酸的潜力.

关键词:

亚塞托基因的产物是一种基因.生物生产是一种生物生产.链条的延长链条的延长流量平衡分析分析流量平衡分析气体发酵气体发酵

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