A new look at the assessment of the silver carp (Hypophthalmichthys molitrix Val.) as a food fish

Hana Buchtová and František Ježek
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Hana Buchtová: Department of Meat Hygiene and Technology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
František Ježek: Department of Meat Hygiene and Technology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic

Czech Journal of Food Sciences, 2011, vol. 29, issue 5, 487-497

Abstract: The principal aim was to analyse the chemical composition (dry matter, protein, fat, saccharides, ash) and to calculate the energy value of 6 topographically distinct parts (cranial, medial and caudal dorsal/ventral part above/below the lateral line) of the fillets of the silver carp (Hypophthalmichthys molitrix Val.) in two weight categories, i.e. lightweight (LW) fish of 3.50 kg live weight, and heavyweight (HW) fish of 4.50 kg live weight. Another aim was to evaluate the lipid profile of the muscle tissue and internal fat (separated from the internal organs). The study demonstrated differences (P < 0.05) in the chemical composition (with the exception of saccharides) and energy values between the relatively lean dorsal sections of silver carp fillets, which rank the silver carp among medium to low-fat fish (fillet fat content: LW = 46.06 ± 5.54 g/kg, HW = 50.62 ± 5.51 g/kg), and the fatter ventral sections which, in contrast, rank the silver carp among high-fat fish (fillet fat content: LW = 158.14 ± 11.28 g/kg, HW = 157.42 ± 9.65 g/kg). The study showed that the internal fat lipids are an interesting alternative source of ∑PUFAn-3 and, in particular, of α-linolenic acid C18:3n-3 (LW = 4.79 ± 0.25, HW = 5.28 ± 0.33), EPA C20:5n-3 (LW = 2.70 ± 0.17, HW = 3.04 ± 0.15), and DHA C22:6n-3 (LW = 3.08 ± 0.20, HW = 3.41 ± 0.18).

Keywords: fish meat; composition; nutritional value; carp; fatty acids (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjf:v:29:y:2011:i:5:id:392-2010-cjfs

DOI: 10.17221/392/2010-CJFS

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Czech Journal of Food Sciences is currently edited by Ing. Zdeňka Náglová, Ph.D.

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