Total Iron,Heme Iron,Zinc, and Copper Content in Rabbit Meat and Viscera |
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Authors: | Carolina Valenzuela Daniel Lopez de Romaña Camila Schmiede María Sol Morales Manuel Olivares Fernando Pizarro |
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Institution: | (1) Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile;(2) Institute of Nutrition and Food Technology (INTA), University of Chile, Macul 5540, Casilla 13811, Santiago, 11, Chile; |
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Abstract: | The aim of this study is to determine the content of total iron (TFe), heme iron (HeFe), zinc (Zn), and copper (Cu) in different
cuts of meat and viscera from rabbit. Five young New Zealand rabbits were used in the study. Samples in triplicate were obtained
from three meat cuts (foreleg, hind leg, and loin) and from main viscera. TFe, Zn, and Cu concentrations from samples were
determined by wet acid digestion followed by atomic absorption spectrophotometry (AAS), while HeFe was determined by acid
extraction followed by AAS. Mean TFe, HeFe, Zn, and Cu in meat was 0.83 ± 0.09, 0.56 ± 0.11, 0.95 ± 0.35, and 0.08 ± 0.01 mg/100 g,
respectively. TFe content was less than 1 mg/100 g in all meat cuts. Sixty-seven percent of iron content was HeFe. The cut
of meat with highest Zn concentrations was the foreleg with 1.33 ± 0.12 mg/100 g. Cu content was low for all meat cuts. TFe,
HeFe, Zn, and Cu content in viscera varied greatly. The spleen was the organ with the highest TFe and Zn concentrations (82.79 ± 9.22 mg/100 g
and 3.49 ± 0.63 mg/100 g, respectively). Nevertheless, the lungs had the highest concentration of HeFe (5.79 ± 0.90 mg/100 g),
accounting for 91% of the total iron. The liver had the highest Cu content (3.89 ± 0.89 mg/100 g). Rabbit meat has low TFe
concentration, similar to that of poultry, and most of the iron is HeFe. The amount of minerals in viscera closely depends
on their function. |
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