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Lipid and fatty acid compositions of cod (Gadus morhua), haddock (Melanogrammus aeglefinus) and halibut (Hippoglossus hippoglossus)

Par Conseil national de recherches du Canada

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DOITrouver le DOI : https://doi.org/10.1007/s11802-010-1763-4
AuteurRechercher : ; Rechercher : ; Rechercher : ; Rechercher : 1; Rechercher : 1
Affiliation
  1. Conseil national de recherches du Canada. Institut des biosciences marines du CNRC
FormatTexte, Article
Sujetcod; fatty acids; haddock; halibut; lipid; liver; muscle; neutral lipid; phospholipid
Résumé
This study was conducted to compare lipid and fatty acid composition of cod, haddock and halibut. Three groups of cod (276 g ± 61 g), haddock (538 g ± 83 g) and halibut (3704 g ± 221 g) were maintained with commercial feeds mainly based on fish meal and marine fish oil for 12 weeks prior to sampling. The fatty acid compositions of muscle and liver were determined by GC/FID after derivatization of extracted lipids into fatty acid methyl esters (FAME). Lipids were also fractionated into neutral and polar lipids using Waters silica Sep-Pak?. The phospholipid fraction was further separated b]] ><![CDATA[y high-performance thin-layer chromatography (HPTLC) and the FAME profile was obtained. Results of the present study showed that cod and haddock were lean fish and their total muscle lipid contents were 0.8% and 0.7%, respectively, with phospholipid constituting 83.6% and 87.5% of the total muscle lipid, respectively. Halibut was a medium -fat fish and its muscle lipid content was 8%, with 84% of the total muscle lipid being neutral lipid. Total liver lipid contents of cod, haddock and halibut were 36.9%, 67.2% and 30. 7%, respectively, of which the neutral lipids accounted for the major fraction (88.1%- 97.1%). Polyunsaturated fatty acids were the most abundant in cod and haddock muscle neutral lipid. Monounsaturated fatty acid level was the highest in halibut muscle neutral lipid. Fatty acid compositions of phospholipid were relatively constant. In summary, the liver of cod and haddock as lean fish was the main lipid reserve organ, and structural phospholipid is the major lipid form in flesh. However, as a medium-fat fish, halibut stored lipid in both their liver and muscle.
Date de publication
Dans
  • Journal of Ocean University of China (English Edition) 9, nº 4 (1 janvier 2010) : 381–388.
Langueanglais
Publications évaluées par des pairsOui
Numéro NPARC17676082
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Identificateur de l’enregistrement285d7332-58ae-4199-a8c1-8a13fc340829
Enregistrement créé2011-04-02
Enregistrement modifié2020-04-17
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