Proximate and mineral analysis of Atlantic salmon (Salmo Salar) cultivated in Bulgaria

Abstract

Problem statement: Only limited information exists on nutrients in salmonoids meat in Bulgaria, which may to be different and vary to a greater extent than the nutrient composition of other fish items. The present paper is aimed to determine the proximate composition, macro and trace elements of Atlantic salmon`s meat. These data could be helpful in judging the value of nutrient composition data as a base for dietary recommendations. Organisms: 12 species of Atlantic salmon (Salmo salar). Approach: The aim of this study was to determine the proximate composition and levels of iron, potassium, sodium, calcium, phosphorus, magnesium, copper, selenium and zinc in Atlantic salmon cultivated for the first time in Bulgaria. The content of protein, fat and ash and concentrations of iron, potassium, sodium, calcium, phosphorus, magnesium, copper, selenium and zinc were determined by automatic systems and electro thermal atomic absorption spectrometry (ETAAS) after microwave digestion. Mean values and their respective coefficients of variation were calculated from the measured concentrations. Conclusion: In order to provide an accurate overview and to be able to calculate reliable dietary intakes, it is important to know the fish composition data.Opis problema: postoje samo ogranicene informacije o hranljivim materijama u mesu lososa u Bugarskoj, koji moze da bude razlicit i varira u vecoj meri nego hranljivi sastav drugih vrsta ribe. Ovaj rad ima za cilj da utvrdi neposredni sastav, makro i mikroelemente mesa atlantskog lososa. Ovi podaci mogu biti od pomoci u ocenjivanju vrednosti hranljivog sastava kao osnova za preporuke u ishrani. Organizmi: 12 vrsta atlantskog lososa (Salmo Salar). Pristup: Cilj ovog istrazivanja bio je da se utvrdi priblizni sastav i nivo gvozdja, kalijuma, natrijuma, kalcijuma, fosfora, magnezijuma, bakra, selena i cinka u mesu atlantskog lososa koji se gaji po prvi put u Bugarskoj. Sadrzaj proteina, masti i pepela i koncentracija gvozdja, kalijuma, natrijuma, kalcijuma, fosfora, magnezijuma, bakra, selena i cinka utvrdjene su automatskim sistemima i elektro toplotnom atomskom apsorpcionom spektrometrijom (ETAAS) nakon mikrotalasne digestije. Srednje vrednosti i njihovi koeficijenti varijacije su izracunati na osnovu izmerenih koncentracija. Zakljucak: Da bi se obezbedio tacan uvid i da bi mogao da se izracuna pouzdan unos hranom, vazno je da znati podatke o sastavu ribe.