Seasonal composition of lipids, fatty acids, and sterols in the edible red alga Grateloupia turuturu
2013
Kendel, Melha | Couzinet-Mossion, Aurélie | Viau, Michelle | Fleurence, Joël | Barnathan, Gilles | Wielgosz-Collin, Gaëtane | Mer, molécules et santé EA 2160 (MMS) ; Le Mans Université (UM)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) ; Université de Nantes (UN)-Université de Nantes (UN)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques (UFR SPB) ; Université de Nantes (UN)-Université de Nantes (UN) | Unité de recherche sur les Biopolymères, Interactions Assemblages (BIA) ; Institut National de la Recherche Agronomique (INRA) | Conseil General de la Loire Atlantique, France
International audience
Mostrar más [+] Menos [-]Inglés. Composition of lipids, sterols, fatty acids (FA), and phospholipids in the edible Rhodophyta Grateloupia turuturu from Britanny, France, was investigated over four seasons in order to identify compounds with potential benefits in health and nutrition. The lipid content was found to vary from 3.3 to 4.1 % dry weight. No marked variations were observed for glycolipids accounting for 42.3-46.8 %, whereas neutral lipids and phospholipids fluctuated from 20.1 % (summer) to 41.8 % (winter), and 11.2 % (winter) to 33.4 % (summer), respectively. Polyunsaturated FA of the total lipids were found from 20.4 % (winter) to 31.1 % (summer), including 20:5 omega 3 acid as the major one (up to 16.3 % in summer). Phosphatidylcholine (20.0-43.7 %) and phosphatidylserine (24.6-37.5 %) were the dominant phospholipids in all seasons. Compounds of interest were identified in minor amounts such as squalene, alpha-tocopherol, phytonadione (vitamin K-1), cholesteryl formate, cholest-4-en-3-one, and cholesta-4,6-dien-3-one. Cholesterol was the major sterol with a lower content in spring and summer.
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