Production of structured triacylglycerols from microalgae
Language English Country Great Britain, England Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
24833034
DOI
10.1016/j.phytochem.2014.04.013
PII: S0031-9422(14)00183-6
Knihovny.cz E-resources
- Keywords
- Chiral LC, Enantiomers, Microalgae, NARP-LC/MS-APCI, Polyunsaturated fatty acids, Polyunsaturated triacylglycerols, Structured triacylglycerols,
- MeSH
- Chlorophyta chemistry MeSH
- Nitrogen metabolism MeSH
- Phosphorus metabolism MeSH
- Stramenopiles chemistry MeSH
- Arachidonic Acid metabolism MeSH
- Eicosapentaenoic Acid metabolism MeSH
- Fatty Acids analysis isolation & purification metabolism MeSH
- Microalgae chemistry MeSH
- Rhodophyta chemistry MeSH
- Triglycerides analysis isolation & purification metabolism MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Nitrogen MeSH
- Phosphorus MeSH
- Arachidonic Acid MeSH
- Eicosapentaenoic Acid MeSH
- Fatty Acids MeSH
- Triglycerides MeSH
Structured triacylglycerols (TAGs) were isolated from nine cultivated strains of microalgae belonging to different taxonomic groups, i.e. Audouinella eugena, Balbiania investiens, Myrmecia bisecta, Nannochloropsis limnetica, Palmodictyon varium, Phaeodactylum tricornutum, Pseudochantransia sp., Thorea ramosissima, and Trachydiscus minutus. They were separated and isolated by means of NARP-LC/MS-APCI and chiral LC and the positional isomers and enantiomers of TAGs with two polyunsaturated, i.e. arachidonic (A) and eicosapentaenoic (E) acids and one saturated, i.e. palmitic acid (P) were identified. Algae that produce eicosapentaenoic acid were found to biosynthesize more asymmetrical TAGs, i.e. PPE or PEE, whereas algae which produced arachidonic acid give rise to symmetrical TAGs, i.e. PAP or APA, irrespective of their taxonomical classification. Nitrogen and phosphorus starvation consistently reversed the ratio of asymmetrical and symmetrical TAGs.
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