NDLI: Reinvestigation of positional distribution of tetracosahexaenoic acid in triacyl-sn-glycerols of flathead flounder flesh

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Reinvestigation of positional distribution of tetracosahexaenoic acid in triacyl-sn-glycerols of flathead flounder flesh

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Fisheries Science : Volume 75, Issue 1, February 2009

Fisheries Science : Volume 74

Fisheries Science : Volume 73

Fisheries Science : Volume 72

Fisheries Science : Volume 71

Reinvestigation of positional distribution of tetracosahexaenoic acid in triacyl-sn-glycerols of flathead flounder flesh

Content Provider	Springer Nature Link
Author	Tomita, Yuki Ando, Yasuhiro
Copyright Year	2009
Abstract	Positional distribution of fatty acids in triacyl-sn-glycerols (TAG) of the flathead flounder Hippoglossoides dubius has been reinvestigated in order to accurately determine the contents of tetracosahexaenoic acid (24:6n-3) in the sn-1, sn-2, and sn-3 positions. Flesh TAG obtained from three flounders were subjected to stereospecific analysis using a suitable procedure for fish TAG analysis. The 24:6n-3 acid was found in the three positions at the concentrations of 0.3–5.5 mole% (the sn-1 position), 1.6–23.3 mole% (the sn-2 position), and 0.6–8.9 mole% (the sn-3 position). In contrast to a previous analysis, the present analysis revealed that 24:6n-3 is preferentially esterified in the sn-2 position followed by the sn-3 and sn-1 positions. Other polyunsaturated fatty acids, docosahexaenoic acid (22:6n-3; DHA) and docosapentaenoic acid (22:5n-3; DPA), showed a similar distribution pattern. These results indicate that the general tendency observed for long-chain polyunsaturated fatty acids in marine fish TAG can be extended to the distribution of 24:6n-3 in flathead flounder TAG. Because the use of flathead flounders is entirely for human food, we thus intake 24:6n-3 concentrated in the sn-2 position of their TAG.
Starting Page	445
Ending Page	451
Page Count	7
File Format	PDF
ISSN	09199268
Journal	Fisheries Science
Volume Number	75
Issue Number	2
e-ISSN	14442906
Language	English
Publisher	Springer Japan
Publisher Date	2009-01-28
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fatty acid Flathead flounder Hippoglossoides dubius Stereospecific analysis Tetracosahexaenoic acid Triacylglycerol Food Science Freshwater & Marine Ecology Fish & Wildlife Biology & Management
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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Positional distribution of 24∶6(n−3) in triacyl-sn-glycerols from flathead flounder liver and flesh

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Reinvestigation of positional distribution of tetracosahexaenoic acid in triacyl-sn-glycerols of flathead flounder flesh

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