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Bioresour. Technol., 2023 Feb;369:128429 | https://doi.org/10.1016/j.biortech.2022.128429 Microalgae biomass deconstruction using green solvents: Challenges and future opportunities

Tirath Raj ^a, Raj Morya ^a, K Chandrasekhar ^b, Deepak Kumar ^c, Shveta Soam ^d, Ravindra Kumar^e, Anil Kumar Patel ^f, Sang-Hyoun Kim^a

^aDepartment of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
^bDepartment of Biotechnology, Vignan's Foundation for Science, Technology and Research, Vadlamudi, 522213 Guntur, Andhra Pradesh, India
^cDepartment of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA
^dDepartment of Building Energy and Environmental Engineering, University of Gävle, Sweden
^eFaculty of Bioscience and Aquaculture, Nord University, 7713 Steinkjer, Norway
^fInstitute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, 81157 Kaohsiung City, Taiwan

Corresponding author : Sang-Hyoun Kim

Abstract

Microalgae enable fixation of CO2 into carbohydrates, lipids, and proteins through inter and intracellularly biochemical pathways. These cellular components can be extracted and transformed into renewable energy, chemicals, and materials through biochemical and thermochemical transformation processes. However, recalcitrant cell wall and lack of environmentally benign efficient pretreatment processes are key obstacles in the commercialization of microalgal biorefineries. Thus, current article describes the microalgal chemical structure, type, and structural rigidity and summarizes the traditional pretreatment methods to extract cell wall constituents. Green solvents such as ionic liquid (ILs), deep eutectic solvents (DES), and natural deep eutectic solvents (NDESs) have shown interesting solvent characteristics to pretreat biomass with selective biocomponent extraction from microalgae. Further research is needed in task-specific IL/DES design, cation–anion organization, structural activity understanding of ILs-biocomponents, environmental toxicity, biodegradability, and recyclability for deployment of carbon–neutral technologies. Additionally, coupling the microalgal industry with biorefineries may facilitate waste management, sustainability, and gross revenue.

논문정보

형식Review Paper
게재일2023년 02월 (BRIC 등록일 2023-03-08)
연구진국내(교신)+국외 연구진
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