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Mineral oil paraffins in human body fat and milk

Authors :
Concin, Nicole
Hofstetter, Gerda
Plattner, Barbara
Tomovski, Caroline
Fiselier, Katell
Gerritzen, Kerstin
Fessler, Siegfried
Windbichler, Gudrun
Zeimet, Alain
Ulmer, Hanno
Siegl, Harald
Rieger, Karl
Concin, Hans
Grob, Koni
Source :
Food & Chemical Toxicology. Feb2008, Vol. 46 Issue 2, p544-552. 9p.
Publication Year :
2008

Abstract

Abstract: Paraffins of mineral oil origin (mineral paraffins) were analyzed in tissue fat collected from 144 volunteers with Caesarean sections as well as in milk fat from days 4 and 20 after birth of the same women living in Austria. In the tissue samples, the composition of the mineral paraffins was largely identical and consisted of an unresolved mixture of iso- and cycloalkanes, in gas chromatographic retention times ranging from n-C17 to n-C32 and centered at n-C23/C24. Since the mineral oil products we are exposed to range from much smaller to much higher molecular mass and may contain prominent n-alkanes, the contaminants in the tissue fat must be a residue from selective uptake, elimination by evaporation and metabolic degradation. Concentrations varied between 15 and 360mg/kg fat, with an average of 60.7mg/kg and a median of 52.5mg/kg. Mineral paraffins might be the largest contaminant of our body, widely amounting to 1g per person and reaching 10g in extreme cases. If food were the main source, exposure data would suggest the mineral paraffins being accumulated over many years or even lifetime. The milk samples of day 4 contained virtually the same mixture of mineral paraffins as the tissue fat at concentrations between 10 and 355mg/kg (average, 44.6mg/kg; median, 30mg/kg). The fats from the day 20 milks contained <5–285mg/kg mineral paraffins (average, 21.7; median, 10mg/kg), whereby almost all elevated concentrations were linked with a modified composition, suggesting a new source, such as the use of breast salves. The contamination of the milk fat with mineral paraffins seems to decrease more rapidly than for other organic contaminants, and the transfer of mineral paraffins to the baby amounts to only around 1% of that in the body of the mother. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
02786915
Volume :
46
Issue :
2
Database :
Academic Search Index
Journal :
Food & Chemical Toxicology
Publication Type :
Academic Journal
Accession number :
28079023
Full Text :
https://doi.org/10.1016/j.fct.2007.08.036