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Article: Variation of lipid class composition in Nitzschia laevis as a response to growth temperature change

TitleVariation of lipid class composition in Nitzschia laevis as a response to growth temperature change
Authors
KeywordsEicosapentaenoic acid
Lipid
Nitzschia laevis
Temperature
Issue Date2008
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/foodchem
Citation
Food Chemistry, 2008, v. 109 n. 1, p. 88-94 How to Cite?
AbstractThe lipid composition and the distribution of fatty acids in the lipid pool were determined in eicosapentaenoic acid (EPA)-producing microalga (Nitzschia laevis) grown under different temperatures. Both the relative amounts of lipid classes and the degree of fatty acid unsaturation in various lipid species were not greatly changed under tested growth conditions. Higher temperature up to 23 °C benefited the growth of N. laevis but only had a slight influence on EPA and lipid contents. Further increasing the culture temperature caused a serious inhibition of both the cell growth and fatty acid biosynthesis. Under all temperatures tested, triacylglycerol (TAG) was the predominant lipid constituent (64.5-69.1% of total lipid) and was highly saturated. Lower temperature favored the formation of polar lipids. The highest content of phosphatidylcholine (PC), the major phospholipids component, was reached at 15 °C (10.9% of total lipid). In sharp contrast to TAG, PC was highly unsaturated and contained a higher amount of EPA under lower temperature. The highest EPA content in polar lipid was achieved at 19 °C. The results from this investigation suggested that the low temperature could improve the distribution of polyunsaturated fatty acids in phospholipids, though it could not significantly influence their amount, especially in PC. © 2007 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/89275
ISSN
2015 Impact Factor: 4.052
2015 SCImago Journal Rankings: 1.620
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, GQen_HK
dc.contributor.authorJiang, Yen_HK
dc.contributor.authorChen, Fen_HK
dc.date.accessioned2010-09-06T09:54:46Z-
dc.date.available2010-09-06T09:54:46Z-
dc.date.issued2008en_HK
dc.identifier.citationFood Chemistry, 2008, v. 109 n. 1, p. 88-94en_HK
dc.identifier.issn0308-8146en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89275-
dc.description.abstractThe lipid composition and the distribution of fatty acids in the lipid pool were determined in eicosapentaenoic acid (EPA)-producing microalga (Nitzschia laevis) grown under different temperatures. Both the relative amounts of lipid classes and the degree of fatty acid unsaturation in various lipid species were not greatly changed under tested growth conditions. Higher temperature up to 23 °C benefited the growth of N. laevis but only had a slight influence on EPA and lipid contents. Further increasing the culture temperature caused a serious inhibition of both the cell growth and fatty acid biosynthesis. Under all temperatures tested, triacylglycerol (TAG) was the predominant lipid constituent (64.5-69.1% of total lipid) and was highly saturated. Lower temperature favored the formation of polar lipids. The highest content of phosphatidylcholine (PC), the major phospholipids component, was reached at 15 °C (10.9% of total lipid). In sharp contrast to TAG, PC was highly unsaturated and contained a higher amount of EPA under lower temperature. The highest EPA content in polar lipid was achieved at 19 °C. The results from this investigation suggested that the low temperature could improve the distribution of polyunsaturated fatty acids in phospholipids, though it could not significantly influence their amount, especially in PC. © 2007 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/foodchemen_HK
dc.relation.ispartofFood Chemistryen_HK
dc.rightsFood Chemistry. Copyright © Elsevier BV.en_HK
dc.subjectEicosapentaenoic aciden_HK
dc.subjectLipiden_HK
dc.subjectNitzschia laevisen_HK
dc.subjectTemperatureen_HK
dc.titleVariation of lipid class composition in Nitzschia laevis as a response to growth temperature changeen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0308-8146&volume=109&spage=88&epage=94&date=2008&atitle=Variation+of+lipid+class+composition+in+Nitzschia+laevis+as+a+response+to+growth+temperature+change.en_HK
dc.identifier.emailChen, F: sfchen@hku.hken_HK
dc.identifier.authorityChen, F=rp00672en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.foodchem.2007.12.022en_HK
dc.identifier.scopuseid_2-s2.0-39149129050en_HK
dc.identifier.hkuros147728en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-39149129050&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume109en_HK
dc.identifier.issue1en_HK
dc.identifier.spage88en_HK
dc.identifier.epage94en_HK
dc.identifier.isiWOS:000254597100012-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridChen, GQ=13406780100en_HK
dc.identifier.scopusauthoridJiang, Y=24605346600en_HK
dc.identifier.scopusauthoridChen, F=7404907980en_HK

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