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Biofuel production using Arctic psychrophilic microalga Chlamydomonas sp. KNM0029C

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Title
Biofuel production using Arctic psychrophilic microalga Chlamydomonas sp. KNM0029C
Other Titles
극지호냉성 미세조류 클라미도모나스 KNM0029을 사용한 바이오연료생산
Authors
Kim, Eun Jae
Kim, Sanghee
Choi, Han-Gu
Han, Se Jong
Keywords
Arctic psychrophilic microalga; Biofuel
Issue Date
2019
Citation
Kim, Eun Jae, et al. 2019. Biofuel production using Arctic psychrophilic microalga Chlamydomonas sp. KNM0029C. ISS2019 (23rd International Seaweed Symposium). international convention center jeju. 2019.04.28~2019.05.03.
Abstract
In this study, 184 strains owned by KOPRI were used to find a candidate used as a feedstock for biofuels. The strain showing the highest lipid content was KNM0029C which was identified as genus Chlamydomonas. KNM0029C showed the highest cell concentration at 4 °C under 80 μmol photon m-2s-1 of light intensity in TAP medium. In order to efficiently produce biodiesel from biomass of KNM0029C, the production yield of FAME was compared between existing extraction methods and modified extraction methods. The modified A method yielded 0.16 g of FAME per g of biomass, which was 5.4 % lower than the conventional Lewis’s method, but it reduced the process of removing moisture. After the biodiesel process, bioethanol was produced using the remaining residues. Bioethanol production using yeast fermentation was compared through a combination of physical, chemical, and biochemical (enzymatic) pretreatment methods. The highest yield of bioethanol was obtained by pretreatment with enzymatic treatment after ultrasonication and showed 0.22 g of bioethanol production per g of residual biomass. It was 38 % higher than the bioethanol production, which showed the highest yield in previous reports, using residual microalgae after de-oiled process.
URI
https://repository.kopri.re.kr/handle/201206/12281
Conference Name
ISS2019 (23rd International Seaweed Symposium)
Conference Place
international convention center jeju
Conference Date
2019.04.28~2019.05.03
Appears in Collections  
2019-2019, Investigation and mass production of functional materials from polar microalgae (19-19) / Kim, Sanghee (PE19270)
2019-2019, Large-scale production and Clinical evaluation of CPS (Cell-Protecting Substance) from polar microalgae (19-19) / Kim, Sanghee (PE19180)
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