scholarly journals Requirements of Larval Yellowtail for Eicosapentaenoic Acid, Docosahexaenoic Acid, and n-3 Highly Unsaturated Fatty Acid

1996 ◽  
Vol 62 (3) ◽  
pp. 372-379 ◽  
Author(s):  
Hirofumi Furuita ◽  
Toshio Takeuchi ◽  
Takeshi Watanabe ◽  
Hiroshi Fujimoto ◽  
Sachio Sekiya ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Docosahexaenoic Acid ◽  
Eicosapentaenoic Acid ◽  
Unsaturated Fatty Acid ◽  
Highly Unsaturated Fatty Acid

TRIGLYCERIDE COMPOSITION OF SIXTEEN STRAINS OF MARINE DIATOM

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Lily M.G. Panggabean ◽  
Abdullah Rasyid ◽  
Zarrah Duniani ◽  
Yana Meliana ◽  
Indah Kurniasih
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acid ◽  
Double Bond ◽  
Unsaturated Fatty Acid ◽  
Ion Trap ◽  
Carbon Chain ◽  
Highly Unsaturated Fatty Acid ◽  
Marine Diatom ◽  
Ion Trap Mass Spectrometry ◽  
Spectra Analysis

Trigliceride or triacylglicerol (TAG) composition in crude oil of sixteen strain of marine diatom has been detected by spectra analyses on an Electrospray - Ion Trap – Mass Spectrometry (ESI-IT-MS) HCT Bruker-Daltonic GmbH instrument with AgNO3 used as coordination ionization agent. Biomass samples of each microalga strain were taken from early and late stationary cultures in f/2 enriched seawater and algal oils were extracted according to Bligh and Dyer. Results from spectra analysis showed that P-Pt-P (C16:0-C16:1-C16:0) were distinguished in TAG from diatom strains Chaetoceros sp.1, Chaetoceros sp.2, Thalasiossira sp.1, Thalasiossira sp.2, Thalasiossira sp.3, Navicula sp. 1, Navicula sp. 2, Navicula sp. 3, Navicula sp. 4, Nitzschia sp. 2 and Amphora sp. In contrast, TAGs in Melosira sp. included P-P-P (C16:0-C16:0-C16:0) and P-P-O (C16:0-C16:0-C18:1) were identified. TAGs from Chaetoceros sp. were the most varies among samples, i.e. P-Pt-P (C16:0-C16:1-C16:0), A-P-M (C20:4-C16:0-C14:0), P-Pt-Lt (C16:0-C16:1-C18:3), P-Pt-A (C16:0-C16:1-C20:4), D-P-P (C22:6-C16:0-C16:0), A-Ln-P (C20:4-C18:2-C16:0). Various TAGs were also detected in Nitzschia sp.2, i.e. P-Pt-M (C16:0-C16:1-C14:0), P-Pt-P (C16:0-C16:1-C16:0), P-Pt-S (C16:0-C16:1-C18:0), P-Pt-A (C16:0-C16:1-C20:4). TAGs composition in Skeletonema strains that similar to those in Nitzschia sp.1 has longer carbon, i.e. P-P-O (C16:0-C16:0-C18:1), P-O-O (C16:0-C18:1-C18:1) and O-O-O (C18:1-C18:1-C18:1). TAGs with longer carbon chain and more double bond including highly unsaturated fatty acid C20:4 were increased with culture age in diatoms Chaetoceros sp.1, Chaetoceros sp.2, Thalasiossira sp.2, Navicula sp.1 and Nitzschia sp. 2.Keywords: diatom, TAG, ESI-IT-MS, f/2, early and late stationary

scholarly journals Metabolism of Natural Highly Unsaturated Fatty Acid, Tetracosahexaenoic Acid (24:6n-3), in C57BL/KsJ-db/db Mice

2018 ◽  
Vol 67 (12) ◽  
pp. 1597-1607 ◽  
Author(s):  
Naohiro Gotoh ◽  
Koji Nagao ◽  
Hiroki Ishida ◽  
Kazusa Nakamitsu ◽  
Kazuaki Yoshinaga ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Unsaturated Fatty Acid ◽  
Highly Unsaturated Fatty Acid ◽  
Tetracosahexaenoic Acid

scholarly journals Fatty Acid Taste Receptor GPR120 Activation by Arachidonic Acid, Eicosapentaenoic Acid, and Docosahexaenoic Acid in Chickens

2021 ◽  
Author(s):  
Fuminori Kawabata ◽  
Yuta Yoshida ◽  
Seiga Kuba ◽  
Yuko Kawabata ◽  
Shotaro Nishimura ◽  
...  
Keyword(s):  
Arachidonic Acid ◽  
Fatty Acid ◽  
Docosahexaenoic Acid ◽  
Eicosapentaenoic Acid ◽  
Taste Receptor

scholarly journals STUDY ON THE THERMAL STABILITY OF EPA AND DHA IN MUJAHIR (Oreochromis mossambicus) FISH OIL

2010 ◽  
Vol 5 (2) ◽  
pp. 152-155 ◽  
Author(s):  
Ngatidjo Hadipranoto
Keyword(s):  
Gas Chromatography ◽  
Fatty Acid ◽  
Docosahexaenoic Acid ◽  
Eicosapentaenoic Acid ◽  
Fish Oil ◽  
Oreochromis Mossambicus ◽  
Heating Process ◽  
Fresh Water Fish ◽  
Epa And Dha ◽  
Indirect Heating

EPA (Eicosapentaenoic acid) and DHA (Docosahexaenoic acid) content in common fresh water fish : mujahir (Oreochromis mossambicus) after indirect heating were analysed. The aims of this study were to determine the effect of indirect heating process and α-tocopherol additions on both fatty acid stability.Lipids content in the mujahir fillets were extracted by Folch method using chloroform-metanol (2:1) mixture. Fatty acids in fish oil were converted to fatty acid methyl esters and then injected into gas chromatography to determine the EPA and DHA concentration. Operating condition of gas chromatography were programmed as follows: injection port temperature at 270 oC, detector at 280 oC, initial column temperature at 200 oC, and the final at 280 oC, the carrier gas was helium with flow rate of 10 ml per minute and temperature of column was increased gradually at 10 oC per minute. The effect of α-tocopherol addition on the stability of EPA and DHA was studied by adding α-tocopherol at 50 to 200 mg per kilogram sample before indirect heating process was carried out.The analysis of mujahir fish oil showed that the content of EPA and DHA in 100 grams fresh sample was 105 and 406,5 mg respectivelly. Indirect heating caused the EPA and DHA content decreased significantly. The addition of α-tocopherol results in a positive corelation between α-tocopherol concentration added and the decrease of EPA and DHA content during the heating process.   Keywords: fatty acid, eicosapentaenoic acid, docosahexaenoic acid

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