Eggs have long been consumed and a major source of important nutrients, including minerals. In this study, determination of ash and mineral contents in the poultry eggs (quail, chicken and duck), such as raw and boiled egg yolk, raw and boiled egg white. Standard Reference Material (SRM) 1849a was purchased from National Institute of Standards & Technology in USA. The samples were provided by Rural Development Administration in Korea. The sample was digested with 8 mL of HNO3 and 2 mL of H2O2 using the microwave. This solution was cooled and diluted with deionized water. Instruments of minerals analysis were inductively coupled plasma (ICP) with optical emission spectrometry (OES) for macro-minerals (Ca, Fe, Mg, P, K, Na, Zn, Cu, Mn) and the ICP with mass spectrometer (MS) for micro-minerals (Se and Mo). This method provided good correlation (r&gt;0.9997), limit of quantitation (&lt;0.19 mg/kg) and accuracy (&lt;8.19 %) within the test ranges. In case of Ca contents, raw egg yolk of quail, chicken and duck were 137.0, 146.2 and 134.1 mg/100g and boiled egg yolk were 157.4, 157.2 and 141.1 mg/100g, respectively. Raw egg white were 3.2, 7.5 and 5.1 mg/100g and boiled egg white were 8.3, 9.5 and 7.6 mg/100g, respectively. Therefore, it is expected that the ash and mineral contents could be used as nutritional food ingredient database for national health promotion.

Comparison of mineral contents in raw and boiled poultry eggs by ICP-OES and ICP-MS

2019 Fall National Meeting

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