The purpose of this article was to detect the selenium content of eggs and to explore the possibility of eggs as selenium source or selenium enriched foods. A method of hydride Generation-Atomic Fluorescence Spectrometry( HG—AFS) for the determination of selenium in eggs was proposed. Amount of selenium in eggs was determined by HG—AFS after the samples were microwaved digestion. The detection limits of this method was 1. 6 μg /100g,and the recoveries were in the range from 91. 3% to 104. 1% with precision( n = 7) of 1. 6% to 3. 8%. The amount of selenium in eggs were in the range from 13. 3 μg /100g to 23. 6 μg /100g,and the amount of selenium in yolks were in the range from 26. 6 μg /100g to 32. 5 μg /100g. The amount of selenium in yolks was fourfold amount of selenium in albumen. The sequence of amount of selenium in four eggs was goose egg,quail egg,duck egg and hen egg. Ducks egg and hen egg with selenium Nutrition Reference Values%( NRV%) greater than 15%,and is a selenium source or selenium contained food. Gooses egg and quails egg were rich in selenium with selenium NRV% greater than 30%.Yolks of four eggs were all rich in selenium with NRV% greater than 30%.
FAN Zhen-jiang
,
TAO Yan-juan
,
ZHOU Kun
. Determination of selenium in eggs and its nutrition[J]. Food and Fermentation Industries, 2014
, 40(07)
: 189
-192
.
DOI: 10.13995/j.cnki.11-1802/ts.2014.07.010