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Investigation of selenium in infant starting, special and follow-on formulae
Cuderman, Petra ; Stibilj, Vekoslava
The purpose of this paper is to investigate the selenium content in seven different infant starting formulae, eight different follow-on formulae and in 15 different special infant formulae, from ...various producers, all commerciallyavailable in Slovenia. Designžmethodologyžapproach Ž Each product was taken in various lots during a three-year period (from 2004 to 2006). For the determination of selenium content in different infant formulae the method of hydride generation atomic fluorescence spectrometry (HG-AFS) was optimised.The reliability of the method was checked by the independent method of radiochemical neutron activation analysis (RNAA). Findings Ž The values fordifferent infant formulae ranged from 20.9 to 207.9Žngžg powder. The paper compared the values obtained with the declared values where possible. The average concentration showed insufficient agreement with the declared value infour out of 30 cases. The paper also found significant variation in seleniumcontent between formulae in the same group. In some cases, large variations between different lots of the same product were found. Originalityžvalue Ž Calculated from our results, from infant formulae babies obtain from 2.4 to 24.0Žug Se per day, showing insufficient agreement with recommended daily intakes published by D_A_CH and by WHO. Since information onthe endogenous Se levels of infant formulae is largely lacking, therefore there is still need for stricter quality control of the selenium content in infant formulae.
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