Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Vet Med Sci. 2023 Jul;9(4):1702-1710. doi: 10.1002/vms3.1184. Epub 2023 Jun 11.
Trace elements are essential for human nutrition, and their deficiencies or excesses are strongly associated with several diseases, such as cardiovascular ones.
The current cross-sectional study investigated the concentration of essential trace elements (copper, non-metal selenium, iron, zinc, cobalt and manganese) in eggs and diets of five strains of laying hens.
The yolk and albumen were analysed separately, and wet preparation was carried out following inductively coupled plasma-optical emission spectrometry detection. The target hazard quotients (THQs) for the non-carcinogenic disease were calculated by the United States environmental protection agency (USEPA) method.
The highest concentrations of selenium, zinc and manganese were found in egg yolks of native hens (0.76, 44.22 and 6.52 mg/kg, respectively). The highest amounts of copper and cobalt were recorded in the egg yolk of Lohman (2.07 and 0.023 mg/kg, respectively). On the other hand, the egg yolk of Bovans contained the highest amount of iron (57.46 mg/kg).
Overall, the potential health risks were minimal, and the consumption of eggs was generally safe.
微量元素是人体营养所必需的，其缺乏或过量与许多疾病密切相关，如心血管疾病。
本横断面研究调查了五种产蛋鸡的鸡蛋和饮食中的必需微量元素（铜、非金属硒、铁、锌、钴和锰）的浓度。
分别分析蛋黄和蛋清，并采用电感耦合等离子体-光学发射光谱法进行湿法制备。采用美国环境保护署（USEPA）方法计算非致癌疾病的目标危害系数（THQ）。
本地母鸡的蛋黄中硒、锌和锰的浓度最高（分别为 0.76、44.22 和 6.52mg/kg）。洛曼鸡蛋的蛋黄中铜和钴的含量最高（分别为 2.07 和 0.023mg/kg）。另一方面，博万斯鸡蛋的蛋黄中铁含量最高（57.46mg/kg）。
总的来说，健康风险很小，食用鸡蛋通常是安全的。
