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Mar. Drugs 2016, 14(6), 104; doi:10.3390/md14060104

Exploitable Lipids and Fatty Acids in the Invasive Oyster Crassostrea gigas on the French Atlantic Coast

1
Faculté des Sciences Pharmaceutiques et Biologiques, Université de Nantes, Groupe Mer, Molécules, Santé-EA 2160, Institut Universitaire Mer et Littoral FR3473 CNRS, 9 rue Bias, BP 53508, F-44035 Nantes Cedex 1, France
2
Faculté des Sciences et des Techniques, Université de Nantes, Groupe Mer, Molécules, Santé-EA 2160, Institut Universitaire Mer et Littoral FR34473 CNRS, 2 rue de La Houssinière BP 92208, F-44322 Nantes Cedex 3, France
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Andrew Desbois
Received: 12 February 2016 / Revised: 12 May 2016 / Accepted: 16 May 2016 / Published: 24 May 2016
(This article belongs to the Special Issue Marine Fatty Acids-2016)
View Full-Text   |   Download PDF [238 KB, uploaded 24 May 2016]   |  

Abstract

Economic exploitation is one means to offset the cost of controlling invasive species, such as the introduced Pacific oyster (Crassostrea gigas Thunberg) on the French Atlantic coast. Total lipid and phospholipid (PL) fatty acids (FAs) and sterols were examined in an invasive population of C. gigas in Bourgneuf Bay, France, over four successive seasons, with a view to identify possible sources of exploitable substances. The total lipid level (% dry weight) varied from 7.1% (winter) to 8.6% (spring). Of this, PLs accounted for 28.1% (spring) to 50.4% (winter). Phosphatidylcholine was the dominant PL throughout the year (up to 74% of total PLs in winter). Plasmalogens were identified throughout the year as a series of eleven dimethylacetals (DMAs) with chain lengths between C16 and C20 (up to 14.5% of PL FAs + DMAs in winter). Thirty-seven FAs were identified in the PL FAs. Eicosapentaenoic acid (20:5n-3 EPA/7.53% to 14.5%) and docosahexaenoic acid (22:6n-3 DHA/5.51% to 9.5%) were the dominant polyunsaturated FAs in all seasons. Two non-methylene-interrupted dienoic (NMID) FAs were identified in all seasons: 7,13-docosadienoic and 7,15-docosadienoic acids, the latter being present at relatively high levels (up to 9.6% in winter). Twenty free sterols were identified, including cholesterol at 29.9% of the sterol mixture and about 33% of phytosterols. C. gigas tissues thus contained exploitable lipids for health benefits or as a potential source of high-quality commercial lecithin. View Full-Text
Keywords: Crassostrea gigas; fatty acids; health and nutrition; bivalve; mollusc; non-methylene interrupted fatty acids; plasmalogens; phospholipids; seasonal variations Crassostrea gigas; fatty acids; health and nutrition; bivalve; mollusc; non-methylene interrupted fatty acids; plasmalogens; phospholipids; seasonal variations
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Dagorn, F.; Couzinet-Mossion, A.; Kendel, M.; Beninger, P.G.; Rabesaotra, V.; Barnathan, G.; Wielgosz-Collin, G. Exploitable Lipids and Fatty Acids in the Invasive Oyster Crassostrea gigas on the French Atlantic Coast. Mar. Drugs 2016, 14, 104.

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