Journal of Food and Nutrition Research
ISSN (Print): 2333-1119 ISSN (Online): 2333-1240 Website: http://www.sciepub.com/journal/jfnr Editor-in-chief: Prabhat Kumar Mandal
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Journal of Food and Nutrition Research. 2014, 2(6), 306-311
DOI: 10.12691/jfnr-2-6-7
Open AccessArticle

Seasonal Variation of the Chemical Composition, Fatty Acid Profiles and Mineral Elements of Diplodus Annularis (Linnaeus, 1758) Caught in the Tunisian Coastal Water

Ilhem Ketata Khitouni1, Nourhène Boudhrioua Mihoubi2, Abderrahmen Bouain1 and Faouzi Ben Rebah3,

1UR Biodiversité et Ecosystèmes Aquatiques, FSS, Sfax, Tunisia

2UR Ecophysiologie et Procédés Agroalimentaires, ISB-Sidi Thabet, Tunisia

3Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Sfax-Tunisia

Pub. Date: June 15, 2014

Cite this paper:
Ilhem Ketata Khitouni, Nourhène Boudhrioua Mihoubi, Abderrahmen Bouain and Faouzi Ben Rebah. Seasonal Variation of the Chemical Composition, Fatty Acid Profiles and Mineral Elements of Diplodus Annularis (Linnaeus, 1758) Caught in the Tunisian Coastal Water. Journal of Food and Nutrition Research. 2014; 2(6):306-311. doi: 10.12691/jfnr-2-6-7

Abstract

The present study investigated the seasonal variation of the chemical composition and fatty acid profiles of Annular sea bream Diplodus annularis from the Gulf of Gabes (Tunisia). Moisture, protein, fat and ash contents of the fish muscle were examined as a function of season and sex. Protein, fat and ash average contents were 18.65, 6.47 and 2.20 g/100 g, respectively. The major fatty acids in D. annularis lipids were palmitic acid, oleic acid, eicosapentaenoic acid, docosahexaenoic acid and myristic acid. Palmitic acid was the most abundant saturated fatty acid ranging from 26.38 to 32.79 % of the total fatty acids. Oleic acid was the main monounsaturated fatty acid ranging from 26.28 to 35.76 %. The high amounts of saturated and monounsaturated fatty acids in the investigated species are almost in agreement with other studies. Interestingly, omega-3 fatty acids were present at high level in spring (18.04 %). Moreover, the fish muscle contained appreciable concentrations of essential elements (Ca, K, Na and Mg). The present work suggests that this fish could be used as a source of healthy diet for humans.

Keywords:
fish chemical composition fatty acids fish muscle diplodus annularis coastal catch fish

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