Objective To determine the content of five essential trace elements namely iron,copper,zinc,selenium,and molybdenum in chicken,eggs,chicken gizzards,and chicken liver samples sold in Anhui Province,and evaluate their nutritional value. Methods The contents of iron,copper,zinc,selenium and molybdenum in 237 chicken products sold in 16 cities of Anhui Province were determined by inductively coupled plasma mass spectrometry (ICP-MS) and the median and index of nutritional quality (INQ) were calculated. Results In 237 chicken,egg,chicken gizzard,and chicken liver samples,the median values for copper were 0.41,0.59,0.85 and 3.68 mg/kg,respectively.The median values for iron were 5.96,18.36,19.42 and 100.86 mg/kg,respectively.The median values for zinc were 11.62,12.42,25.41 and 35.83 mg/kg,respectively.The median values for selenium were 0.10,0.24,0.19 and 0.51mg/kg,respectively.The median values for molybdenum 0.02,0.05,0.04 and 0.63mg/kg,respectively.The INQ of iron,copper,zinc,selenium and molybdenum in chicken were 0.57,0.77,1.75,2.51 and 0.37,respectively.The INQ of iron,copper,zinc,selenium and molybdenum in eggs were 1.96,1.25,2.20,6.81 and 1.05,respectively.The INQ of iron,copper,zinc,selenium and molybdenum in chicken gizzards were 3.21,2.12,5.40,6.85 and 0.87,respectively.The INQ of iron,copper,zinc,selenium and molybdenum in chicken liver were 13.60,21.67,7.71,22.38 and 12.41,respectively. Conclusion Eggs have better nutritional value than chicken and can be used as a high-quality source of iron,copper,zinc,selenium and molybdenum in the diet.The nutritional value of chicken liver is superior to that of chicken gizzards,and it can be a good source of iron,copper,zinc,selenium and molybdenum supplementation.
Key words
Chicken products /
Essential trace elements /
Nutrition index method /
Nutritional evaluation
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