微生物电化学驱动的同时生物气改造和高价值的中链碳酸生产
Ya-Ru Wang1, Chuan Chen2, Shu-Tong Wu2
1College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China.
Bioresource technology
|October 19, 2025
概括
本研究介绍了一种微生物电化学系统,用于高效的沼气升级和二氧化碳转化为有价值的中链碳酸 (MCCA). 优化的系统实现了高生物甲纯度和显著的MCCA产量,提供了一个经济可行的生物气体价值化途径.
科学领域:
- 生物技术是生物技术.
- 电化学 电化学 电化学
- 环境科学 环境科学
背景情况:
- 生物生物气改造面临质量转移和经济可行性的挑战.
- 低效的转换限制了生物气中的二氧化碳 (CO2) 的利用.
研究的目的:
- 开发一种创新的微生物电化学系统,用于同时升级生物气和转化二氧化碳.
- 为了增强 (H2) 输送,并利用乙醇/乙酸盐来延长链条.
- 为了生产高价值的中链碳酸 (MCCA).
主要方法:
- 微生物电化学细胞与Sporomusa ovata和Clostridium kluyveri共同培养的整合.
- 优化应用的外部电压和初始乙醇度.
- 气液质量转移增强器用于H2输送.
主要成果:
- 实现了95.2%的生物甲纯度.
- 获得了高的MCCA产量50.4 mmol L-1.
- 最佳条件被确定为3.0 V和260 mmol L-1 乙醇.
结论:
- 开发的系统为生物气利用提供了一种新且经济上有吸引力的途径.
- 技术经济分析证实了可行性,预计收入超过成本.
- 首次将二氧化碳生物气转化为高价值的生物化学品.
相关概念视频
Environmental Applications of Microorganisms
948
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
948
Microbial Fermentation
1.3K
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1.3K
Bioremediation
22.0K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
22.0K
Fates of Pyruvate
10.4K
Pyruvate is the end product of glycolysis, where glucose is oxidized to pyruvate, simultaneously reducing NAD+ to NADH. Two molecules of ATP are also produced by substrate-level phosphorylation.
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
10.4K
Lipid Catabolism
845
Triglycerides serve as crucial long-term energy storage molecules in microorganisms, providing a dense source of metabolic energy. Their breakdown is mediated by lipases, which hydrolyze triglycerides into glycerol and free fatty acids. Each of these components follows distinct metabolic pathways, ultimately contributing to ATP synthesis and cellular energy homeostasis.Glycerol MetabolismGlycerol, released from triglyceride hydrolysis, is phosphorylated by glycerol kinase to form...
845


