|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
Peer-reviewed Journal Articles, etc >
Reinvestigation of positional distribution of tetracosahexaenoic acid in triacyl-sn-glycerols of flathead flounder flesh
| Title: | Reinvestigation of positional distribution of tetracosahexaenoic acid in triacyl-sn-glycerols of flathead flounder flesh |
| Authors: | Tomita, Yuki Browse this author | | Ando, Yasuhiro Browse this author →KAKEN DB |
| Keywords: | Fatty acid | | Flathead flounder | | Hippoglossoides dubius | | Stereospecific analysis | | Tetracosahexaenoic acid | | Triacylglycerol |
| Issue Date: | Apr-2009 |
| Publisher: | Springer |
| Journal Title: | Fisheries Science |
| Volume: | 75 |
| Issue: | 2 |
| Start Page: | 445 |
| End Page: | 451 |
| Publisher DOI: | 10.1007/s12562-008-0048-y |
| 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. |
| Rights: | © 2009 公益社団法人日本水産学会 | | © 2009 The Japanese Society of Fisheries Science | | The final publication is available at www.springerlink.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/44612 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 安藤 靖浩
|
