Research Article
Dietary Intake of Metals from Fresh Cage-Reared Hens’ Eggs in Tenerife, Canary Islands
Table 4
Comparison of metal concentrations in hen eggs from nonspecified breeder system.
(a) Comparison of metal concentration levels in the egg whites |
| Metal | Souci et al. [40] | CESNID [41] | Moreiras et al. [2] | Giannenas et al. [42] | Demirulus [43] | This study (2015) |
| Ca | 110 | 60 | 50 | — | — | 78.3 | Cr | — | — | — | 0.048 | — | 0.02 | Cu | 1.3 | — | — | 0.212 | 7 | 1.69 | Fe | 2 | 1 | 1 | — | — | 1.46 | K | 1550 | 1420 | 1500 | — | — | 541 | Mg | 120 | 100 | 110 | — | — | 81.2 | Na | 1700 | 1600 | 1900 | — | — | 1092 | Ni | — | — | — | 0.064 | 3.7 | 0.03 | Pb | — | — | — | — | — | 0.02 | V | — | — | — | 0.013 | — | 0.12 | Zn | 0.2 | Traces | 1 | 1.003 | 7.4 | 0.92 |
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(b) Comparison of metal concentration levels in the egg yolks |
| Metal | Souci et al. [40] | CESNID [41] | Moreiras et al. [2] | Giannenas et al. [42] | Demirulus [43] | This study (2015) |
| Ca | 1400 | 1370 | 1300 | — | — | 775 | Cr | — | — | — | 0.066 | — | 0.12 | Cu | 3.5 | — | — | 1.357 | 10.5 | 3.21 | Fe | 70 | 55 | 61 | — | — | 18.6 | K | 1400 | 970 | 1200 | — | — | 628 | Mg | 160 | 130 | 150 | 75.96 | — | 31.7 | Mn | 0.5–2 | — | — | 0.836 | 1.9 | 0.36 | Mo | — | — | — | 0.26 | — | 0.07 | Na | 500 | 500 | 500 | — | — | 307 | Ni | — | — | — | 0.063 | 1.7 | 0.07 | Pb | — | — | — | — | — | 0.04 | V | — | — | — | 0.012 | — | 0.15 | Zn | 40 | 39 | 39 | 20.68 | 35.6 | 14.9 |
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(c) Comparison of metal concentrations levels in the homogenized egg |
| Metal | Moreiras et al. [2] | Fakayode and Olu-Owolabi [44] | Abduljaleel and Shuhaimi-Othman [45] | González-Weller et al. [46] | Iwegbue et al. [47] | This study (2015) |
| Al | — | — | 17.11 | 2.930 | — | 9.41 | Ba | — | — | — | 0.468 | — | 0.72 | Ca | 570 | — | — | — | — | 174 | Cr | — | — | 3.24 | 0.115 | 0.32 | 0.17 | Cu | — | 0.78 | — | — | 1.03 | 2.22 | Fe | 19 | 23.20 | — | — | — | 5.49 | K | 1300 | — | — | — | — | 491 | Mg | 120 | — | — | — | — | 87.5 | Na | 1400 | — | — | — | — | 1149 | Ni | — | 0.03 | 1.11 | 0.038 | 0.86 | 0.05 | Pb | — | 0.59 | 0.420 | — | 0.82 | 0.02 | Sr | — | — | — | 0.388 | — | 2.05 | Zn | 13 | 13.75 | 34.22 | — | 6.45 | 3.37 |
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