Biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification
The production of biodiesel derived from microalgae is among the most forthcoming technologies that provide an ecologic alternative to fossil fuels. Herein, a method was developed that enables the direct extraction and conversion of algal oil to biodiesel without prior isolation. The reaction occurs...
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fthessoch:oai:hesso.tind.io:8627 2023-10-09T21:47:07+02:00 Biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification Bauer, Gerald Lima, Serena Chenevard, Jean Sugnaux, Marc Fischer, Fabian 2021-10-01T11:38:57Z https://doi.org/10.1021/acssuschemeng.6b02665 https://arodes.hes-so.ch/record/8627/files/Published%20version.pdf http://arodes.hes-so.ch/record/8627 eng eng doi:10.1021/acssuschemeng.6b02665 https://arodes.hes-so.ch/record/8627/files/Published%20version.pdf http://arodes.hes-so.ch/record/8627 http://arodes.hes-so.ch/record/8627 Text 2021 fthessoch https://doi.org/10.1021/acssuschemeng.6b02665 2023-09-10T23:55:56Z The production of biodiesel derived from microalgae is among the most forthcoming technologies that provide an ecologic alternative to fossil fuels. Herein, a method was developed that enables the direct extraction and conversion of algal oil to biodiesel without prior isolation. The reaction occurs in aqueous media catalyzed by immobilized Candida antarctica lipase B (Novozyme 435). Zwitter-type ionic liquids were used as cocatalyst to improve the selectivity and reactivity of the enzyme. In a model reaction with sunflower oil, 64% biodiesel was obtained. Applying this method to a slurry of whole-cell Chlorella zofingiensis in water resulted in 74.8% of lipid extraction, with 27.7% biotransformation products and up to 16% biodiesel. Factors that reduced the lipase activity with whole-cell algae were subsequently probed and discussed. This “in situ” method shows an improvement to existing methods, since it integrates the oil extraction and conversion into an one-pot procedure in aqueous conditions. The extraction is nondisruptive, and is a model for a greener algae to biodiesel process. Text Antarc* Antarctica Hes-so: ArODES Open Archive (University of Applied Sciences and Arts Western Switzerland) ACS Sustainable Chemistry & Engineering 5 2 1931 1937 |
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Hes-so: ArODES Open Archive (University of Applied Sciences and Arts Western Switzerland) |
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English |
description |
The production of biodiesel derived from microalgae is among the most forthcoming technologies that provide an ecologic alternative to fossil fuels. Herein, a method was developed that enables the direct extraction and conversion of algal oil to biodiesel without prior isolation. The reaction occurs in aqueous media catalyzed by immobilized Candida antarctica lipase B (Novozyme 435). Zwitter-type ionic liquids were used as cocatalyst to improve the selectivity and reactivity of the enzyme. In a model reaction with sunflower oil, 64% biodiesel was obtained. Applying this method to a slurry of whole-cell Chlorella zofingiensis in water resulted in 74.8% of lipid extraction, with 27.7% biotransformation products and up to 16% biodiesel. Factors that reduced the lipase activity with whole-cell algae were subsequently probed and discussed. This “in situ” method shows an improvement to existing methods, since it integrates the oil extraction and conversion into an one-pot procedure in aqueous conditions. The extraction is nondisruptive, and is a model for a greener algae to biodiesel process. |
format |
Text |
author |
Bauer, Gerald Lima, Serena Chenevard, Jean Sugnaux, Marc Fischer, Fabian |
spellingShingle |
Bauer, Gerald Lima, Serena Chenevard, Jean Sugnaux, Marc Fischer, Fabian Biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification |
author_facet |
Bauer, Gerald Lima, Serena Chenevard, Jean Sugnaux, Marc Fischer, Fabian |
author_sort |
Bauer, Gerald |
title |
Biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification |
title_short |
Biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification |
title_full |
Biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification |
title_fullStr |
Biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification |
title_full_unstemmed |
Biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification |
title_sort |
biodiesel via in situ wet microalgae biotransformation ::zwitter-type ionic liquid supported extraction and transesterification |
publishDate |
2021 |
url |
https://doi.org/10.1021/acssuschemeng.6b02665 https://arodes.hes-so.ch/record/8627/files/Published%20version.pdf http://arodes.hes-so.ch/record/8627 |
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Antarc* Antarctica |
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Antarc* Antarctica |
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http://arodes.hes-so.ch/record/8627 |
op_relation |
doi:10.1021/acssuschemeng.6b02665 https://arodes.hes-so.ch/record/8627/files/Published%20version.pdf http://arodes.hes-so.ch/record/8627 |
op_doi |
https://doi.org/10.1021/acssuschemeng.6b02665 |
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ACS Sustainable Chemistry & Engineering |
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5 |
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2 |
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1931 |
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1937 |
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1779309876187496448 |