Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice
Abstract Background Biofuels, generated using microalgae as sustainable energy, have received a lot of attention. Microalgae can be cultivated at low cost with CO 2 and solar energy without competition from edible crops. Psychrophilic microalgae can be a suitable feedstock to produce biofuels withou...
Published in: | Biotechnology for Biofuels |
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Springer Science and Business Media LLC
2020
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Online Access: | http://dx.doi.org/10.1186/s13068-020-1660-z http://link.springer.com/content/pdf/10.1186/s13068-020-1660-z.pdf http://link.springer.com/article/10.1186/s13068-020-1660-z/fulltext.html |
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crspringernat:10.1186/s13068-020-1660-z 2023-05-15T14:54:53+02:00 Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice Kim, Eun Jae Kim, Sanghee Choi, Han-Gu Han, Se Jong Korea Polar Research Institute 2020 http://dx.doi.org/10.1186/s13068-020-1660-z http://link.springer.com/content/pdf/10.1186/s13068-020-1660-z.pdf http://link.springer.com/article/10.1186/s13068-020-1660-z/fulltext.html en eng Springer Science and Business Media LLC http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ CC-BY Biotechnology for Biofuels volume 13, issue 1 ISSN 1754-6834 Management, Monitoring, Policy and Law General Energy Renewable Energy, Sustainability and the Environment Applied Microbiology and Biotechnology Biotechnology journal-article 2020 crspringernat https://doi.org/10.1186/s13068-020-1660-z 2022-01-14T15:39:58Z Abstract Background Biofuels, generated using microalgae as sustainable energy, have received a lot of attention. Microalgae can be cultivated at low cost with CO 2 and solar energy without competition from edible crops. Psychrophilic microalgae can be a suitable feedstock to produce biofuels without the environmental constraints of low temperatures, because they can grow below 10 °C. However, there is a lack of efficient strategies using psychrophilic microalgae to produce biodiesel and bioethanol. Therefore, the current study aimed to optimize the production of biodiesel and bioethanol from Arctic Chlamydomonas sp. KNM0029C at low temperatures. Results After incubation in a 20-L photobioreactor, fatty acid methyl ester (FAME) was extracted using modified FAME extraction methods, producing a maximum yield of 0.16-g FAME/g KNM0029C. Residual biomass was pretreated for bioethanol production, and the yields from different methods were compared. The highest bioethanol yield (0.22-g/g residual biomass) was obtained by pretreatment with enzyme (amyloglucosidase) after sonication. Approximately 300-mg biofuel was obtained, including 156-mg FAME biodiesel and 144-mg bioethanol per g dried cells, representing the highest recorded yield from psychrophilic microalgae. Conclusions This is the first to attempt at utilizing biomass from psychrophilic Arctic microalga Chlamydomonas sp. KNM0029C for the co-production of bioethanol and biodiesel, and it yielded the highest values among reported studies using psychrophilic organisms. These results can be used as a source for the efficient biofuel production using polar microalgae. Article in Journal/Newspaper Arctic Sea ice Springer Nature (via Crossref) Arctic Biotechnology for Biofuels 13 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Management, Monitoring, Policy and Law General Energy Renewable Energy, Sustainability and the Environment Applied Microbiology and Biotechnology Biotechnology |
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Management, Monitoring, Policy and Law General Energy Renewable Energy, Sustainability and the Environment Applied Microbiology and Biotechnology Biotechnology Kim, Eun Jae Kim, Sanghee Choi, Han-Gu Han, Se Jong Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice |
topic_facet |
Management, Monitoring, Policy and Law General Energy Renewable Energy, Sustainability and the Environment Applied Microbiology and Biotechnology Biotechnology |
description |
Abstract Background Biofuels, generated using microalgae as sustainable energy, have received a lot of attention. Microalgae can be cultivated at low cost with CO 2 and solar energy without competition from edible crops. Psychrophilic microalgae can be a suitable feedstock to produce biofuels without the environmental constraints of low temperatures, because they can grow below 10 °C. However, there is a lack of efficient strategies using psychrophilic microalgae to produce biodiesel and bioethanol. Therefore, the current study aimed to optimize the production of biodiesel and bioethanol from Arctic Chlamydomonas sp. KNM0029C at low temperatures. Results After incubation in a 20-L photobioreactor, fatty acid methyl ester (FAME) was extracted using modified FAME extraction methods, producing a maximum yield of 0.16-g FAME/g KNM0029C. Residual biomass was pretreated for bioethanol production, and the yields from different methods were compared. The highest bioethanol yield (0.22-g/g residual biomass) was obtained by pretreatment with enzyme (amyloglucosidase) after sonication. Approximately 300-mg biofuel was obtained, including 156-mg FAME biodiesel and 144-mg bioethanol per g dried cells, representing the highest recorded yield from psychrophilic microalgae. Conclusions This is the first to attempt at utilizing biomass from psychrophilic Arctic microalga Chlamydomonas sp. KNM0029C for the co-production of bioethanol and biodiesel, and it yielded the highest values among reported studies using psychrophilic organisms. These results can be used as a source for the efficient biofuel production using polar microalgae. |
author2 |
Korea Polar Research Institute |
format |
Article in Journal/Newspaper |
author |
Kim, Eun Jae Kim, Sanghee Choi, Han-Gu Han, Se Jong |
author_facet |
Kim, Eun Jae Kim, Sanghee Choi, Han-Gu Han, Se Jong |
author_sort |
Kim, Eun Jae |
title |
Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice |
title_short |
Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice |
title_full |
Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice |
title_fullStr |
Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice |
title_full_unstemmed |
Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice |
title_sort |
co-production of biodiesel and bioethanol using psychrophilic microalga chlamydomonas sp. knm0029c isolated from arctic sea ice |
publisher |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1186/s13068-020-1660-z http://link.springer.com/content/pdf/10.1186/s13068-020-1660-z.pdf http://link.springer.com/article/10.1186/s13068-020-1660-z/fulltext.html |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Biotechnology for Biofuels volume 13, issue 1 ISSN 1754-6834 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1186/s13068-020-1660-z |
container_title |
Biotechnology for Biofuels |
container_volume |
13 |
container_issue |
1 |
_version_ |
1766326633740894208 |