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Article: Effects of temperature and temperature shift on docosahexaenoic acid production by the marine microalga Crypthecodinium cohnii

TitleEffects of temperature and temperature shift on docosahexaenoic acid production by the marine microalga Crypthecodinium cohnii
Authors
Issue Date2000
PublisherSpringer New York LLC.
Citation
Jaocs, Journal Of The American Oil Chemists' Society, 2000, v. 77 n. 6, p. 613-617 How to Cite?
AbstractThe effects of temperature and temperature shift on the fatty acid composition and docosahexaenoic acid (DHA, C22:6n-3) content and productivity of the marine microalga Crypthecodinium cohnii ATCC 30556 were investigated. The microalga grew well over the entire range of temperatures (15-30 °C) studied. High temperature favored the growth of the microalga with the highest specific growth rate of 0.092 h-1 at 30 °C. In contrast, low temperature favored the formation of polyunsaturated fatty acids. The highest DHA content was obtained at 15 °C in the early stationary phase (i.e., 72 h). In order to achieve high DHA productivity, a shift from high temperature to low temperature at a later stage of cultivation (i.e., 48 h) was also attempted. A temperature shift from 25 °C (for 48 h) to 15 °C (for 24 h) resulted in an increase in cellular DHA content by 19.9% and productivity by 6.5% as compared to that maintained at 25 °C (for 72 h).
Persistent Identifierhttp://hdl.handle.net/10722/68399
ISSN
2015 Impact Factor: 1.505
2015 SCImago Journal Rankings: 0.676
References

 

DC FieldValueLanguage
dc.contributor.authorJiang, Yen_HK
dc.contributor.authorChen, Fen_HK
dc.date.accessioned2010-09-06T06:04:16Z-
dc.date.available2010-09-06T06:04:16Z-
dc.date.issued2000en_HK
dc.identifier.citationJaocs, Journal Of The American Oil Chemists' Society, 2000, v. 77 n. 6, p. 613-617en_HK
dc.identifier.issn0003-021Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/68399-
dc.description.abstractThe effects of temperature and temperature shift on the fatty acid composition and docosahexaenoic acid (DHA, C22:6n-3) content and productivity of the marine microalga Crypthecodinium cohnii ATCC 30556 were investigated. The microalga grew well over the entire range of temperatures (15-30 °C) studied. High temperature favored the growth of the microalga with the highest specific growth rate of 0.092 h-1 at 30 °C. In contrast, low temperature favored the formation of polyunsaturated fatty acids. The highest DHA content was obtained at 15 °C in the early stationary phase (i.e., 72 h). In order to achieve high DHA productivity, a shift from high temperature to low temperature at a later stage of cultivation (i.e., 48 h) was also attempted. A temperature shift from 25 °C (for 48 h) to 15 °C (for 24 h) resulted in an increase in cellular DHA content by 19.9% and productivity by 6.5% as compared to that maintained at 25 °C (for 72 h).en_HK
dc.languageengen_HK
dc.publisherSpringer New York LLC.en_HK
dc.relation.ispartofJAOCS, Journal of the American Oil Chemists' Societyen_HK
dc.titleEffects of temperature and temperature shift on docosahexaenoic acid production by the marine microalga Crypthecodinium cohniien_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-021X&volume=77&spage=613&epage=617&date=2000&atitle=Effects+of+temperature+and+temperature+shift+on+docosahexaenoic+acid+production+by+the+marine+microalga+Crypthecodinium+cohniien_HK
dc.identifier.emailChen, F: sfchen@hku.hken_HK
dc.identifier.authorityChen, F=rp00672en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0033689066en_HK
dc.identifier.hkuros52815en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033689066&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume77en_HK
dc.identifier.issue6en_HK
dc.identifier.spage613en_HK
dc.identifier.epage617en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridJiang, Y=24605346600en_HK
dc.identifier.scopusauthoridChen, F=7404907980en_HK

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