Ostalo
Comparison of chemical composition and content of heavy metals in meat of sea bass (Dicentrarchus labrax) and gilt-head sea bream (Sparus aurata)
Ana Vulić
; Hrvatski veterinarski institut, Laboratorij za analitičku kemiju, Savska 143, Zagreb
doc. Jelka Pleadin
; Hrvatski veterinarski institut, Laboratorij za analitičku kemiju, Savska 143, Zagreb
Nina Perši
; Hrvatski veterinarski institut, Laboratorij za analitičku kemiju, Savska 143, Zagreb
Tanja Bogdanović
; Veterinarski zavod Split, Laboratorij za analitičku kemiju i rezidue, Poljička cesta 33, Split
Snježana Zrnčić
; Hrvatski veterinarski institut, Laboratorij za patologiju riba, Savska 143, Zagreb
Dražen Oraić
; Hrvatski veterinarski institut, Laboratorij za patologiju riba, Savska 143, Zagreb
Sažetak
The aim of this research was to compare chemical composition and content of heavy metals in the meat of sea bass and gilt-head sea
bream, both in farmed fish and from free fishing. A total of 30 samples of gilt-head sea bream and 30 samples of sea bass of commercial
size, out of which half the samples were farmed fish and the other half were from free fishing. Chemical composition analyses have
shown that in both kinds of fish there is a statistically significant difference in content of water, protein, fat and collagen between the
samples from free fishing and farmed fish. There was determined four times, i.e. eight times higher content of fat in the meat of farmed
samples of sea bass and gilt-head sea bream in comparison to samples of farmed fish. Contents of heavy metals, cadmium (Cd) and
lead (Pb) with both fish species and regardless of the origin of fish, were lower than the maximum quantities allowed proscribed by
Croatian and EU regulations. As opposed to the quantities of Cd and Pb, the quantity of mercury (Hg) determined in certain samples
of both fish species from free fishing was higher than maximum quantity allowed, indicating to the fact that some samples were not
safe for consumption. Considering the fact that the content of heavy metals in muscle tissue of fish can vary depending on species,
sex, age, season, diet and food availability, in the goal of the total assessment of potential dangers due to consummation of the abovementioned fish species, it is necessary to conduct a more detailed research, taking into account the listed factors.
Ključne riječi
chemical composition; heavy metals; sea bass; gilt-head sea bream
Hrčak ID:
96690
URI
Datum izdavanja:
15.9.2012.
Posjeta: 2.844 *