Multiproduct Microalgae Biorefineries Mediated by Ionic Liquids

Eppink, M.H.M.; Ventura, Sónia P. M.; Coutinho, João A. P.; Wijffels, René H.

doi:10.1016/j.tibtech.2021.02.009

Cited by 22 publications

(9 citation statements)

References 96 publications

(157 reference statements)

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“…In this context, C. saccharophila is a strain that has potential for use in biorefinery applications, facilitating the circular bioeconomy. However, a multiproduct strategy based on the biorefinery concept for the sequential extraction of numerous high‐value renewables (e.g., proteins, lipids, pigments, and carbohydrates) is yet to be developed 68 …”

Section: Resultsmentioning

confidence: 99%

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Valorization of carbon dioxide (CO₂) to enhance production of biomass, biofuels, and biorenewables (B³) in Chlorella saccharophilaUTEX247: a circular bioeconomy perspective

Kareya

Mariam

Rajacharya

et al. 2021

Biofuels Bioprod Bioref

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Carbon dioxide supplementation regulates the metabolism of photosynthetic organisms, initiating CO2 fixation through the central carbon metabolism and partitioning the carbon in various metabolic processes. It is important to understand the molecular mechanisms of carbon fixation and partitioning to control and regulate biomass and lipid production. In this context, we investigated the metabolic and physiological responses of a freshwater microalga, Chlorella saccharophila, supplemented with very low CO2 (VLC) (300 ppm or 0.03%) and high CO2 (HC) (30 000 ppm, or 3% v/v), for its potential as a biorefinery strain. Our results demonstrate that growth with HC was enhanced 1.4‐fold in comparison with VLC. We speculate that growth with VLC was supported by the central electron flow. Similar changes were observed in various biochemical constituents, i.e., lipids, proteins and carbohydrates. It was also observed that the total pigment productivity was 1.8‐fold higher with HC supplementation than in cultures supplemented with VLC, further indicating enhanced growth in HC. Applying qualitative metabolomics, we identified nearly 23 essential metabolites. There was an accumulation of sugars and antioxidants such as trehalose and α‐tocopherol in VLC as compared to HC. In conclusion, our objective is to understand HC supplementation in C. saccharophila UTEX247 and to provide valuable insights leading to enhanced biomass for the production of biofuels and high‐value biorenewables (B3) in the context of a circular bioeconomy by the valorization of carbon dioxide (CO2). © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Resultsmentioning

confidence: 99%

“…However, a multiproduct strategy based on the biorefinery concept for the sequential extraction of numerous high-value renewables (e.g., proteins, lipids, pigments, and carbohydrates) is yet to be developed. 68…”

Section: Biochemical Profiling and Analysismentioning

confidence: 99%

Valorization of carbon dioxide (CO₂) to enhance production of biomass, biofuels, and biorenewables (B³) in Chlorella saccharophilaUTEX247: a circular bioeconomy perspective

Kareya

Mariam

Rajacharya

et al. 2021

Biofuels Bioprod Bioref

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“…The most frequently used cations are imidazolium-based ions due to their stable chemical property and availability. 532 The effect of length of alkyl side-chain on the extraction efficiency was discussed in study of Sorokina et al 533 This study has shown that under 65 533 This result indicated that the ILs with larger HB acceptor were more effective in the extraction process.…”

Section: Biofuel Precursor Extraction From Microalgaementioning

confidence: 98%

Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Zhou,

Gui,

Sun

et al. 2023

Chem. Rev.

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Ionic liquids (ILs) consisting entirely of ions exhibit many fascinating and tunable properties, making them promising functional materials for a large number of energy-related applications. For example, ILs have been employed as electrolytes for electrochemical energy storage and conversion, as heat transfer fluids and phase-change materials for thermal energy transfer and storage, as solvents and/or catalysts for CO2 capture, CO2 conversion, biomass treatment and biofuel extraction, and as high-energy propellants for aerospace applications. This paper provides an extensive overview on the various energy applications of ILs and offers some thinking and viewpoints on the current challenges and emerging opportunities in each area. The basic fundamentals (structures and properties) of ILs are first introduced. Then, motivations and successful applications of ILs in the energy field are concisely outlined. Later, a detailed review of recent representative works in each area is provided. For each application, the role of ILs and their associated benefits are elaborated. Research trends and insights into the selection of ILs to achieve improved performance are analyzed as well. Challenges and future opportunities are pointed out before the paper is concluded.

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“…Ionic liquids (ILs) are characterized by high design flexibility and tunability and a wide range of polarity and capacity to solubilize a wide variety of organic and inorganic compounds. , In addition, their low volatility eliminates a major concern for contamination, and a large number of ILs are already available with low toxicity, low cost, and high biodegradability. − It is preferred, however, to reuse the IL after regeneration to avoid the presence of IL in the waste and to minimize costs for the process.…”

Section: Introductionmentioning

confidence: 99%

Efficient Fractionation of Lipids in a Multiproduct Microalgal Biorefinery by Polymers and Ionic Liquid-Based Aqueous Two-Phase Systems

Ruiz

Cabau-Peinado

Berg

et al. 2021

ACS Sustainable Chem. Eng.

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For a multiproduct microalgal biorefinery, most of the cell components should be extracted and fractionated. This work investigates the fractionation of lipids from other microalgal components (pigments, proteins, carbohydrates) using polymers and IL solutions in aqueous two-phase systems (ATPS). The microalgal lipids poorly migrated to the aqueous phases of ATPS and were recovered (97% of the total fatty acids) in a third phase (interphase) formed between the top and bottom phases. Studies with canola oil and purified phospholipids suggest that the high amount of oil, phospholipids, and other natural emulsifiers present in the microalgae mixed with the high amount of water in the ATPS form an emulsion which is difficult to fractionate. However, a solution of polypropylene glycol 400 (25% w/w) displaced 73% of lipids in an immiscible layer which was easy to recover. When combining this approach with a subsequent ATPS, most of the microalgae biomolecules (lipids, proteins, pigments, carbohydrates) could be fractionated in a three-step mild separation concept.

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Multiproduct Microalgae Biorefineries Mediated by Ionic Liquids

Cited by 22 publications

References 96 publications

Valorization of carbon dioxide (CO₂) to enhance production of biomass, biofuels, and biorenewables (B³) in Chlorella saccharophilaUTEX247: a circular bioeconomy perspective

Valorization of carbon dioxide (CO₂) to enhance production of biomass, biofuels, and biorenewables (B³) in Chlorella saccharophilaUTEX247: a circular bioeconomy perspective

Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Efficient Fractionation of Lipids in a Multiproduct Microalgal Biorefinery by Polymers and Ionic Liquid-Based Aqueous Two-Phase Systems

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Multiproduct Microalgae Biorefineries Mediated by Ionic Liquids

Cited by 22 publications

References 96 publications

Valorization of carbon dioxide (CO2) to enhance production of biomass, biofuels, and biorenewables (B3) in Chlorella saccharophilaUTEX247: a circular bioeconomy perspective

Valorization of carbon dioxide (CO2) to enhance production of biomass, biofuels, and biorenewables (B3) in Chlorella saccharophilaUTEX247: a circular bioeconomy perspective

Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Efficient Fractionation of Lipids in a Multiproduct Microalgal Biorefinery by Polymers and Ionic Liquid-Based Aqueous Two-Phase Systems

Contact Info

Product

Resources

About

Valorization of carbon dioxide (CO₂) to enhance production of biomass, biofuels, and biorenewables (B³) in Chlorella saccharophilaUTEX247: a circular bioeconomy perspective

Valorization of carbon dioxide (CO₂) to enhance production of biomass, biofuels, and biorenewables (B³) in Chlorella saccharophilaUTEX247: a circular bioeconomy perspective