A Review on Industrial CO 2 Capture through Microalgae Regulated by Phytohormones and Cultivation Processes

Hao Chen (), Yuye Jiang, Kai Zhu, Jingwen Yang, Yanxia Fu and Shuang Wang ()
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Hao Chen: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Yuye Jiang: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Kai Zhu: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Jingwen Yang: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Yanxia Fu: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Shuang Wang: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China

Energies, 2023, vol. 16, issue 2, 1-17

Abstract: Microalgae is a promising metabolism microorganism for the fixation of CO 2 from industrial gas while accumulating microalgae biomass. The process of CO 2 fixation by microalgae is able to be significantly improved by the regulation of phytohormones. However, the complex metabolic mechanism of microalgae regulated by phytohormones and abiotic stress on CO 2 fixation deserves to be explored. To systematically understand the existing status and establish a foundation for promoting the technology, this paper reviews investigations on the metabolic mechanism of microalgae regulated by phytohormones. The influences of nitrogen stress, light intensity stress, heavy metal stress, and salinity stress on CO 2 fixation and lipid production are summarized. In addition, a comprehensive overview of the multistage regulation of phytohormones and abiotic stress on CO 2 fixation and lipid production through microalgae is presented. The recent advances in CO 2 transfer reinforcement and light transmission reinforcement in photobioreactors are discussed. This review provides an insight into the enhancement of CO 2 fixation by microalgae regulated by phytohormones, abiotic stress, and mass transfer in multistage photobioreactors.

Keywords: microalgae; CO 2 fixation; phytohormones; abiotic stress; multistage regulation; photobioreactor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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