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Microalgae biofuels: illuminating the path to a sustainable future amidst challenges and opportunities

文献类型： 外文期刊

作者： Wang, Min 1 ; Ye, Xiaoxue 2 ; Bi, Hongwen 1 ; Shen, Zhongbao 3 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Inst Agr Remote Sensing & Informat, Harbin 150086, Peoples R China

2.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572025, Peoples R China

3.Heilongjiang Acad Agr Sci, Grass & Sci Inst, Harbin 150086, Peoples R China

关键词： Microalgae biofuels; Lipid; Selection strategies; PBRs; Genetic engineering

期刊名称：BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS

ISSN：

年卷期： 2024 年 17 卷 1 期

页码：

收录情况： SCI

摘要： The development of microalgal biofuels is of significant importance in advancing the energy transition, alleviating food pressure, preserving the natural environment, and addressing climate change. Numerous countries and regions across the globe have conducted extensive research and strategic planning on microalgal bioenergy, investing significant funds and manpower into this field. However, the microalgae biofuel industry has faced a downturn due to the constraints of high costs. In the past decade, with the development of new strains, technologies, and equipment, the feasibility of large-scale production of microalgae biofuel should be re-evaluated. Here, we have gathered research results from the past decade regarding microalgae biofuel production, providing insights into the opportunities and challenges faced by this industry from the perspectives of microalgae selection, modification, and cultivation. In this review, we suggest that highly adaptable microalgae are the preferred choice for large-scale biofuel production, especially strains that can utilize high concentrations of inorganic carbon sources and possess stress resistance. The use of omics technologies and genetic editing has greatly enhanced lipid accumulation in microalgae. However, the associated risks have constrained the feasibility of large-scale outdoor cultivation. Therefore, the relatively controllable cultivation method of photobioreactors (PBRs) has made it the mainstream approach for microalgae biofuel production. Moreover, adjusting the performance and parameters of PBRs can also enhance lipid accumulation in microalgae. In the future, given the relentless escalation in demand for sustainable energy sources, microalgae biofuels should be deemed a pivotal constituent of national energy planning, particularly in the case of China. The advancement of synthetic biology helps reduce the risks associated with genetically modified (GM) microalgae and enhances the economic viability of their biofuel production. Highly adaptable microalgae strains are the preferred choice for large-scale biofuel production.Omics technologies and genetic editing have significantly increased lipid accumulation in microalgae, but rigorous risk assessment is required.Adjusting the parameters of PBRs can lead to efficient lipid accumulation.A promising future for the microalgae biofuel industry is highly anticipated in China.

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