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The Arctic sea ice algae Chlamydomonas species: Growth and lipid contents at low temperature

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Title
The Arctic sea ice algae Chlamydomonas species: Growth and lipid contents at low temperature
Other Titles
북극해빙에서 분리한 클라미도모나스 종의 저온에서의 생장과 지질 분석
Authors
Kim, Eun Jae
Choi, Han-Gu
Kim, Sanghee
Han, Se Jong
Lim, Suyoun
Jung, Woongsic
Keywords
미세조류; 바이오연료; 북극해빙
Issue Date
2014
Citation
Kim, Eun Jae, et al. 2014. The Arctic sea ice algae Chlamydomonas species: Growth and lipid contents at low temperature. 3rd Asia-Oceania Algae Innovation Summit. 대전 ICC 호텔. 2014.11.17~2014.11.20.
Abstract
Biodiesel produced from algae shows great potential as green alternative energy. In winter season, however, outdoor mass cultivation for biodiesel production has a problem presenting poor growth rate. The Arctic Chlamydomonas species, ArF0032 was isolated from sea ice near the Dasan Station located in Ny-Alesund, Spitsbergen, Norway (78° 50′ N, 11° 56′ E). ArF0032 was revealed to have optimal growth temperature of 4℃ and the maximal cell density of 1.7×107 cells/ml at 4℃ (Fig. 1). The formation of lipid body of ArF0032 was visualized by Nile red staining method and exhibited yellow-gold at 488 nm fluorescence. The ArF0032’s fatty acid methyl ester (FAME) was analyzed using gas chromatography. The ArF0032 showed fatty acid contents, which were dominated by palmitic acid methyl ester (C16:0), 5,8,11-heptadecatrienoic acid methyl ester (C17:3), oleic acid methyl ester (C18:1), linoleic acid methyl ester (C18:2) and α-linolenic acid methyl ester (C18:3). The ArF0032 presented maximum percentage (20%) of oleic acid and the content of unsaturated fatty acids (72.1%) was higher than that of saturated fatty acid (9%). The Arctic ArF0032 could grow at low temperature and produce fatty acids (C16:0 and C18:1) as desirable biodiesel. Thus, result of this study suggest that Arctic Chlamydomonas ArF0032 may be a source for biodiesel production
URI
http://repository.kopri.re.kr/handle/201206/7103
Conference Name
3rd Asia-Oceania Algae Innovation Summit
Conference Place
대전 ICC 호텔
Conference Date
2014.11.17~2014.11.20
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