Effect of salinity on the fatty acid and triacylglycerol composition of five haptophyte algae from the genera Coccolithophora, Isochrysis and Prymnesium determined by LC-MS/APCI
Jazyk angličtina Země Velká Británie, Anglie Médium print-electronic
Typ dokumentu časopisecké články
PubMed
27298276
DOI
10.1016/j.phytochem.2016.06.001
PII: S0031-9422(16)30117-0
Knihovny.cz E-zdroje
- Klíčová slova
- Coccolithophyceae, Haptophyte algae (genera Coccolithophora, Isochrysis and Prymnesium), Liquid chromatography-mass spectrometry, Octadecapentaenoic acid, Salinity, Stearidonic acid,
- MeSH
- Haptophyta chemie genetika MeSH
- kyseliny mastné omega-3 chemie MeSH
- mastné kyseliny analýza MeSH
- molekulární struktura MeSH
- nenasycené mastné kyseliny chemie MeSH
- salinita MeSH
- stereoizomerie MeSH
- triglyceridy analýza MeSH
- vysokoúčinná kapalinová chromatografie MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Německo MeSH
- Názvy látek
- kyseliny mastné omega-3 MeSH
- mastné kyseliny MeSH
- nenasycené mastné kyseliny MeSH
- stearidonic acid MeSH Prohlížeč
- triglyceridy MeSH
Non-aqueous reversed-phase high-performance liquid chromatography (NARP-HPLC) with atmospheric pressure chemical ionization (APCI) was used for separation of triacylglycerols from five strains of haptophyte algae (genera Coccolithophora, Isochrysis, and Prymnesium). This study describes the separation and identification of C18 polyunsaturated triacylglycerols containing stearidonic and octadecapentaenoic fatty acids, including their regioisomers. Salinity affects the proportion of saturated and unsaturated fatty acids. The biosynthesis of C18 polyunsaturated triacylglycerols was found to be very stereospecific and to depend on the salinity of cultivation media, asymmetric regioisomers predominating at low salinity (sn-OpOpSt and/or PoStSt) and symmetric ones at high salinity (sn-OpStOp and or StPoSt).
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