关键词: 二氧化碳, 酶, 微藻

Abstract: Carbon dioxide is the main greenhouse gas，and rapid development has been made in the study of fixation and conversion of CO2 in recent years. Chemical and biological methods are the main methods of CO2 fixation. The low efficiency，high energy consumption，and high requirements of equipment performance are the significant disadvantages of chemical conversion of CO2. Biological methods of CO2 fixation include enzymatic and microalgal carbon dioxide fixation，which have attracted much attention due to their mild reaction conditions and pollution-free. This paper summarizes the research status of CO2 fixation using multi-enzyme system and microalgae at home and abroad，focusing on the research progress of choosing and optimizing of multi-enzyme system，screening and breeding of genetic engineered microalgae，and the design of photoreactor and the synthesis of high value-added products. Meanwhile，CO2 fixation coupled with production of useful substances by building new multi-enzyme system is the primary development direction of enzymatic carbon dioxide fixation. In addition，the construction of genetic engineering micro-algae and the development of new photoreactor are efficient methods to improve microalgal carbon sequestration.

Key words: carbon dioxide, enzyme, microalgae