Yan Cheng, Mei Juan, Zhao Youcai
Department of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu, China.
Jiangsu Provincial Key Laboratory of Environmental Science and Engineering, Suzhou 215009, Jiangsu, China.
Sheng Wu Gong Cheng Xue Bao. 2022 Apr 25;38(4):1322-1338. doi: 10.13345/j.cjb.210418.
Aerobic methane oxidizing bacteria (methanotrophs) can use methane as carbon source and energy source, eliminating 10%-20% of global methane. Methanotrophs can also effectively synthesize valuable methane-derived products. This article introduced the methane oxidizing mechanism of methanotrophs, and summarized the practical application and research hotspots of methanotrophs in the field of methane emission reduction in the landfill, ventilation air methane mitigation in coal mines, valuable chemicals biosynthesis, as well as oil and gas reservoir exploration. Main factors influencing the pollutant removal and the biosynthesis efficiency in various applications were also discussed. Based on the study of large-scale cultivation of methanotrophs, some measures to benefit the application and promotion of aerobic methane oxidizing biotechnology were proposed. This includes investigating the effect of intermediate metabolites on methanotrophs activity and population structure, and exploiting economical and efficient alternative culture media and culture techniques.
好氧甲烷氧化细菌（甲烷营养菌）能够利用甲烷作为碳源和能源，消除全球10%-20%的甲烷。甲烷营养菌还能有效合成有价值的甲烷衍生产品。本文介绍了甲烷营养菌的甲烷氧化机制，并总结了甲烷营养菌在垃圾填埋场甲烷减排、煤矿通风瓦斯甲烷减排、有价值化学品生物合成以及油气藏勘探等领域的实际应用和研究热点。还讨论了影响各种应用中污染物去除和生物合成效率的主要因素。基于对甲烷营养菌大规模培养的研究，提出了一些有利于好氧甲烷氧化生物技术应用和推广的措施。这包括研究中间代谢产物对甲烷营养菌活性和种群结构的影响，以及开发经济高效的替代培养基和培养技术。
