微生物碳链延长技术转化废弃生物质合成中链脂肪酸

Medium chain fatty acids biosynthesis from waste biomass by microbial chainelongation technology

“碳中和”目标下,废弃生物质制备可再生化学品成为落实碳中和、减污降碳等国家重大战略需求的重要技术之一。其中,微生物碳链延长技术生产中链脂肪酸(MCFAs)是高值化回收废弃碳源的一个重要方向。MCFAs作为生物基化学品新星,兼具经济、环保与实用性优势,可部分地替代化石原料合成环保型燃料与化学品,降低传统化石资源依赖与碳排放,助力经济社会发展绿色转型。为此,系统梳理了碳链延长技术的反应机理、功能菌群,以及MCFAs生产应用存在的关键瓶颈和研究进展,以期为相关领域研究者开展创新研究、突破技术瓶颈提供参考。

Under the goal of"carbon neutral",the preparation of renewable chemicals from waste biomass has become an important technology to implement major national strategies such as carbon neutrality,pollution reduction and carbon reduction.Among them,the production of medium-chain fatty acids(MCFAs)by microbial chain elongation(CE)technology is an important direction for high-value recovery of waste carbon sources.As a new star of bio-based chemicals,MCFAs have economic,environmental and practical advantages,which can partially replace fossil raw materials to synthesize environmentally friendly fuels and chemicals,reduce traditional fossil resource dependence and carbon emissions,and promote green transformation of economic and social development.This review aimed to introduce the mechanism and functional microbial communities of CE technology,as well as the key bottlenecks and research progress in the production and application of MCFAs,in order to inspire researchers to carry out innovative research and breakthrough technological bottlenecks.