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Relative oral bioavailability of 3-MCPD from 3-MCPD fatty acid esters in rats.
MedLine Citation:
PMID:  23229518     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In order to quantify the relative oral bioavailability of 3-chloropropane-1,2-diol (3-MCPD) from 3-MCPD fatty acid diesters in vivo, 1,2-dipalmitoyl-3-chloropropane-1,2-diol (3-MCPD diester) and 3-MCPD were orally applied to rats in equimolar doses. In both cases, the time courses of 3-MCPD concentrations were measured in blood, various organs, tissues and intestinal luminal contents. The results show that 3-MCPD is released by enzymatic hydrolysis from the 3-MCPD diester in the gastrointestinal tract and distributed to blood, organs and tissues. Based on the measurements in blood, the areas under the curve (AUC) for 3-MCPD were calculated. By comparing both AUC, the relative amount of 3-MCPD bioavailable from the 3-MCPD diester was calculated to be 86 % on average of the amount bioavailable following administration of 3-MCPD. In view of limited experimental data, it is justified for the purpose of risk assessment to assume complete hydrolysis of the diesters in the gastro-intestinal tract. Therefore, assessment of the extent of exposure to 3-MCPD released from its fatty acid esters should be performed in the same way as exposure to the same molar quantity of 3-MCPD.
Authors:
Klaus Abraham; Klaus E Appel; Edith Berger-Preiss; Elisabeth Apel; Susanne Gerling; Hans Mielke; Otto Creutzenberg; Alfonso Lampen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-15
Journal Detail:
Title:  Archives of toxicology     Volume:  -     ISSN:  1432-0738     ISO Abbreviation:  Arch. Toxicol.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-12-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0417615     Medline TA:  Arch Toxicol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Food Safety, Federal Institute for Risk Assessment, Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany.
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