产中链脂肪酸突破 9.05 g/L！重庆大学团队实现竹废料与CO₂高效生物合成利用，开辟绿色制造新路径，诚聘弘深青年教师/博士后

Core Viewpoint - The article highlights a significant breakthrough in the biosynthesis of medium-chain fatty acids (MCFAs) by a research team led by Professor Wang Dan from Chongqing University, utilizing engineered Escherichia coli and bamboo waste as a substrate, achieving a production yield of 9.05 g/L in a 5 L fermentation tank [2][5]. Group 1: Research Breakthroughs - The research team constructed an efficient synthesis pathway in E. coli by deleting specific genes to block β-oxidation and enhance the utilization of multiple carbon sources, resulting in an initial MCFA yield of 2.29 g/L [4]. - Further enhancements were made using protein engineering techniques, achieving a yield of 5.83 g/L and the first synthesis of C6 fatty acids [4]. - The introduction of a carbonic anhydrase gene from Anabaena sp. 7120 improved CO₂ conversion efficiency, raising the yield to 6.72 g/L, and subsequent overexpression of a fatty acid regulatory factor led to a final yield of 9.05 g/L [5]. Group 2: Economic and Environmental Impact - The economic analysis indicates that using bamboo waste hydrolysate instead of glucose as a carbon source reduces the production cost of MCFAs by approximately 17% per ton, showcasing both economic and environmental advantages of this biosynthetic route [5]. Group 3: Institutional Background - Chongqing University is a key national research university, actively contributing to regional and industrial development, with significant achievements in research funding and project approvals [7][8]. - The university's chemical engineering and technology programs rank highly globally, reflecting its strong academic capabilities and commitment to innovation in fields like bio-manufacturing [8]. Group 4: Research Team and Leadership - Professor Wang Dan leads the research team, focusing on biosynthesis of chemical products and new materials, with numerous publications in high-impact journals and significant contributions to national research projects [9].