The proximate composition and fatty acid profiles of edible parts of two freshwater mussels

Tatlı su midyesi Unio terminalis ve Potamida littoralis’in besin kompozisyonu ve yağ asidi profilleri karşılaştırılmıştır. U. terminalis ve P. littoralis’in ham protein (%11,87-11,97), lipit (%2,55-1,05), kül (%1,68-1,61) ve nem (%80,36-81,69) içerikleri incelenmiştir. U. terminalis’in lipit içeriği P. littoralis'inkine göre önemli ölçüde (P

Anahtar Kelimeler:

yağ asitleri, dokosahekzaenoyik asit, eikopentanoik asit, midye, besin analizi

İki tatlı su midyesinin yenilebilir kısımlarının besin kompozisyonu ve yağ asidi profilleri

The proximate compositions and fatty acid profiles of the freshwater mussels Unio terminalis and Potamida littoralis were compared. The crude protein (11.87-11.97%), lipid (2.55-1.05%), ash (1.68–1.61%) and moisture (80.36-81.69%) contents of U. terminalis and P. littoralis were observed. Lipid content of U. terminalis was found to be significantly (P<0.05) higher than in P. littoralis. The percentages of total saturated fatty acids (SFA) and total monounsaturated fatty acids (PUFA) were higher in U. terminalis than in P. littoralis, whereas the corresponding total polyunsaturated fatty acids (MUFA) content was lower. The n3/n6 ratio of U. terminalis and P. littoralis were 1.54-1.40, respectively. The data obtained indicate that the % composition of n3 PUFAs is greater for U. terminalis. Both of these species are good sources of EPA and DHA. Therefore, it was concluded that freshwater mussels U. terminalis and P. littoralis are suitable as healthy food choice.

Keywords:

fatty acids, docosahexaenoic acid, eicosapentaenoic acid, mussels, proximate analysis,

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AOAC. 1984. Official methods of analysis of the association of official analysis chemists. Association of Official Analytical Chemists. 14th Ed. Washington.
AOAC. 1990. Official methods of analysis of the association of official analysis chemists. Association of Official Analytical Chemists. 15th Ed. Washington.
Bligh, E.G. and Dyer, W.J. 1959. A rapid method of total lipit extraction and proficiation. Canadian Journal of Biochemistry and Physiology, 37: 911-917.
Chen, I.C., Chapman, F.A., Wei, C.I., Porteir, K.M. and O’Keefe, S.F. 1995. Differentiation of cultured and wild sturgeon (Acipencer oxyrinchus desotoi) based on fatty acid composition. Journal of Food Science, 60(3): 631–635.
Çek, Ş. and Şereflişan, H. 2006. Certain reproductive characteristics of the freshwater mussel Unio terminalis delicates (Lea, 1863) in Gölbaşı Lake, Turkey. Aquaculture Research, 37(13): 1305-1315.
Fernandez-Reiriz, M.J., Labarta, U. and Babarro, J.M.F. 1996. Comparative allometries in growth and chemical composition of mussel (Mytilus galloprovincialis Lmk) cultured in two zones in the Ria sada (Galicia, NW Spain). Journal of Shellfish Research, 15: 349 - 353.
Freites, L., Fernandez-Reiriz, M.J. and Labarta, U. 2002. Fatty acid profiles of Mytilus galloprovincialis (Lmk) mussel of subtidal and rocky shore origin. Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 132(2): 453- 461.
HMSO, UK. 1994. Nutritional aspects of cardiovascular disease report on health and social subjects. No. 46, HMSO, London.
King, I., Childs, MT., Dorsett, C., Ostrander, J.G. and Monsen, E.R. 1990. Shellfish: proximate composition, minerals, fatty acids, and sterols. Journal of the American Dietetic Association, 90: 677–685.
Kinsella, J.E., Broughton, K.S. and Whelan, J.W. 1990. Dietary unsaturated fatty acids: interactions and possible needs in relation to eicosanoid synthesis. The Journal of Nutritional Biochemistry, 1: 123–141.
Larsen, L.F., Jespersen, J. and Marckmann, P. 1999. Are olive oil diets antithrombotic? Diets enriched with olive, rapeseed, or sunflower oil affect postprandial factor VII differently. American Journal of Clinical Nutrition, 70(6): 976–982.
Mclean, C.H. and Bulling, K.R. 2005. Differences in lipid profile of New Zealand marine species over four seasons. Journal of Food Lipids, 12(4): 313–326.
Metcalfe, L.D., Schmitz, A.A. and Pelka, J.R. 1966. BF3- methanol procedure for rapid quantitative preparation of methyl esters from lipids. Analytical Chemistry, 38: 514.
Okumus, I. and Stirling, H.P. 1998. Seasonal variations in the meat weight, condition index and biochemical composition of mussels (Mytilus edulis L.) in suspended culture in 2 Scottish Sea lochs. Aquaculture, 159: 261–294.
Orban, E., Di Lena, G., Nevigato, T., Casini, I., Marzetti, A. and Caproni, R. 2002. Condition index and chemical composition of mussels (Mytilus galloprovincialis) cultured in two different Italian sites. Food Chemistry, 77: 57–65.
Pigott, G.M. and Tucker, B.W. 1990. Seafood effects of technology on nutrition. Marcel Dekker, Inc. New York.
Şengör, F.G., Akkuş, S. and Çelik, U. 1997. İşlenmis Karamidye (Mytilus galloprovincialis, Lam. 1819)’de Kimyasal Kompozisyonunun ve Randımanın Belirlenmesi. IX. Ulusal Su Ürünleri Sempozyumu, 17–19 Eylül 1997, Eğirdir, Isparta.
Türkmen, M. and Ciminli, C. 2007. Determination of metals in fish and mussel species by inductively coupled plasma-atomic emission spectrometry. Food Chemistry, 103(2): 670-675.
Uno, S., Hyun, Y.J., Kaneniwa, M., Koyama, J., Yamada, H. and Ikeda, K. 1999. The PICES Practical Workshop was held from May 24 to June 7, 1999, in Vancouver Harbour, Canada.
Vernocchi, P., Maffei, M., Lanciotti, R., Suzzi, G. and Gadrini, F. 2007. Characterization of Mediterranean mussels (Mytilus galloprovincialis) harvested in Adriatic Sea (Italy). Food Control, 18(12): 1575-1583.
Von Schacky, C. and Weber, P.C. 1985. Metabolism and effects on platelet function of the purified eicosapentaenoic and docosahexaenoic acids in humans. Journal of Clinical Investigation, 76(6): 2446-2450.