Seasonal changes of fatty acids of cuttlefish L. (Mollusca: Cephalopoda) in the north eastern Mediterranean sea

Özyurt, Gülsün; Duysak, Önder; Akamca, Erhan; Türeli̇, Canan

doi:10.1016/j.foodchem.2004.12.044

Cited by 55 publications

(35 citation statements)

References 24 publications

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“…In this study, palmitic acid (16:0), stearic acid (18:0), palmitoleic acid (16:1n7), DHA (22:6 n3) and EPA (20:5 n3) were the most abundant fatty acids found in the lipids of all O. vulgaris samples, both wild and under different dietary regimes, as it has been reported for many cephalopod species (Miliou et al 2006;Zlatanos et al 2006;Ozyurt et al 2006;Ozogul et al 2008).…”

Section: % Of Total Fassupporting

confidence: 69%

Influence of natural diet on growth and biochemical composition of Octopus vulgaris Cuvier, 1797

2010

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The influence of diet on growth and biochemical composition of cultured Octopus vulgaris was investigated. Octopuses were reared in a open recirculation seawater system and during the experiment were kept apart in cages. Experiment lasted 30 days. Three experimental dietary groups were established: group I (mixed diet: Carcinus mediterraneus, Boops boops and Mytilus galloprovincialis), group II (monodiet on B. boops) and group III (monodiet on M. galloprovincialis). The best results were obtained with the monodiet based on bogue that gave a weight gain of 390.65 ± 37.54, an absolute growth rate of 13.02 g day -1 and feed efficiency of 44.79 ± 0.96%. Regarding to biochemical composition, the mussel-fed and bogue-fed groups showed the highest protein content. Animals fed on bogue also showed the highest carbohydrate content, while the lowest value was observed in the mussels-fed group. The lipid content was found to be very low in all dietary groups. Saturated fatty acids were the most abundant fatty acid class, ranging from 58.22% in wild octopuses to 46.83% in bogues-fed octopuses. Polyunsaturated fatty acids (PUFAs) were the second most abundant fatty acids class in all dietary treatments (25.65-37.00% as a per cent of total FAs) except in octopuses fed with mussels. MUFAs ranged from 11.44 to 26.93% of total FAs. Although it is empirically known that a varied diet better covers the nutritional requirements than a monodiet, the results of this study reveal that a monodiet of B. boops may be used.

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Section: % Of Total Fassupporting

confidence: 69%

Influence of natural diet on growth and biochemical composition of Octopus vulgaris Cuvier, 1797

2010

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“…This came in accordance with many cephalopod studies (Ozogul et al, 2008). The variation of fatty acid composition depends on species, food availability, age, geographical area, season and salinity (Ozyurt et al, 2006). Adult cephalopods are rich in long Polyunsaturated Fatty Acid (PUFA) (Thanonkaew and Visessanguan, 2006), in particular, adult males.…”

Section: Discussionsupporting

confidence: 88%

Feeding biology and biochemical composition of the lessepsian migrant Octopus aegina (Cephalopoda: Octopodidae)

Osman

Gabr

El-Etreby

et al. 2014

Egypt. J. of Aquatic Biolo. and Fish.

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The natural feeding of 609 Octopus aegina was studied in relation to the environmental seasonal variations in three populations in the Suez Canal, the Gulf of Suez and the Mediterranean Sea. Samples were collected seasonally from March 2009 till May 2010. Analysis of the stomach contents revealed that O. aegina attained the highest percentages of empty stomachs during spring for the three populations. The (1/2) full stomachs was dominant in the collected samples (32.97 %). The study revealed that 34.43 %, 32.83 % and 32.10 % of the examined stomachs were empty in the samples of Suez Canal, Gulf of Suez and Mediterranean, respectively. There was no definite seasonal food preference, and crustaceans were the most preferable food item followed by fishes. The biochemical composition of O. aegina revealed that females are higher than males in total protein content (72.41 % and 69.29 % for immature and mature females respectively) and total lipid content (38.4 g/100 g dry weight and 33.2 g/100 g dry weight for immature and mature females respectively). Amino acid analysis showed that O. aegina contains higher percentage of non essential amino acids (NEAA) than essential amino acids (EAA). Leucine, Lysine and Arginine had the highest percentage of EEA, while Asparagine, Glutamate and Glycine had the highest percentage of NEAA. EAA in males increased from 36.64% to 37.93 % in immature and mature respectively, while in females it increased from 36.93 % to 41.5 % in immature and mature respectively. Fatty acid analysis showed that males O. aegina contain higher percentage content of fatty acid components (SFA and UFA) than females. The results also revealed that SFA tended to decrease by maturation in males and females. Palmitic (16:0) and Stearic (18:0) were the most abundant SFA. Mature males had the highest percentage content of PUFA.

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“…temperature, degree of pollution, nutritional condition, genetic differences between species, geographical location, handling, processing, storage and distribution) (Ozyurt et al, 2006).…”

Section: Oil Characterizationmentioning

confidence: 99%

Lipid composition and antioxidant activity of liver oils from ray species living in Tunisian coasts

Sellami

Rebah

Gargouri

et al. 2018

Arabian Journal of Chemistry

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The proximate composition, fatty acid profiles, physicochemical properties and radical scavenging activities of liver oil from three ray species, Dasyatis pastinaca, Dasyatis violacea and Rhinoptera marginata, were investigated. Lipid contents of D. pastinaca (58.27%) and D. violacea (57.33%) were significantly high compared to those of R. marginata (10.90%). Among minerals, K and Na were the most abundant elements and the highest values were observed for R. marginata (153.7 and 115.86 mg/100 g, respectively). The fatty acid profiles exhibited a dominance of unsaturated fatty acids exceeding 65% of the total fatty acids. C16:0, C18:0 and C14:0 were the major saturated fatty acids. The most abundant monounsaturated fatty acids were C18:1 (10.88-21.98%) and C16:1 (4.47-23.95%). Interestingly, omega-3 polyunsaturated fatty acid profiles exhibited a dominance of eicosapentaenoic acid (3.36-5.51%) and docosahexaenoic acid (9.07-30.50%). D. pastinaca contained the highest carotenoid and total phenolic content accompanied with the strongest free radical scavenging abilities. This study suggests that ray livers which were actually wasted, could be used as new raw material for omega-3 polyunsaturated fatty acid oil production and a good source of carotenoids and phenolic compounds.

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Seasonal changes of fatty acids of cuttlefish L. (Mollusca: Cephalopoda) in the north eastern Mediterranean sea

Cited by 55 publications

References 24 publications

Influence of natural diet on growth and biochemical composition of Octopus vulgaris Cuvier, 1797

Influence of natural diet on growth and biochemical composition of Octopus vulgaris Cuvier, 1797

Feeding biology and biochemical composition of the lessepsian migrant Octopus aegina (Cephalopoda: Octopodidae)

Lipid composition and antioxidant activity of liver oils from ray species living in Tunisian coasts

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