Document Detail


Depletion study of PCDD/Fs and dioxin-like PCBs concentrations in contaminated home-produced eggs: preliminary study.
MedLine Citation:
PMID:  20579489     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Dioxins (PCDD/Fs) and polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants. The contamination of food products with dioxins and PCBs is a well studied issue, because food is generally considered the major source of dioxin intake for humans. In Italy, the Regional Monitoring Plan (part of the national residue monitoring plan) used in the field for 2009 has also included the control of environmental pollutants in small egg producers. Following an irregular result, 12 laying hens were transferred into a laboratory controlled environment. Eggs were collected for 60 days and they were weekly analysed for the evaluation of dioxins, dioxin-like PCBs (DL-PCBs), and non-dioxin-like PCBs (NDL-PCBs, six congeners) levels. The dioxins and PCBs contents were determined, according to EPA methods, by gas chromatography ic determination coupled with high resolution mass spectrometry (HRGC-HRMS). The content of PCDD/Fs, DL-PCBs and NDL-PCBs was evaluated weekly by mean from week to week. The concentration of dioxins was lower than DL-PCBs (2.5 pg TEQ g(-1) of fat against 4.5 pg TEQ g(-1) of fat), but we observed the same depletion trend for both pollutants. On the opposite, NDL-PCBs had a different course: we noted there was an increase between weeks 6 and 7, but the mean levels remained very low (about 20 ng g(-1) of fat). The dioxins, and sum of dioxin and DL-PCBs concentration were below the fixed European limits (i.e. 3 pg TEQ g(-1) of fat for dioxins and 6 pg TEQ g(-1) of fat for sum of dioxins and DL-PCBs), beginning from the 3rd week of trial.
Authors:
S Menotta; M D'antonio; G Diegoli; L Montella; S Raccanelli; G Fedrizzi
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Publication Detail:
Type:  Journal Article     Date:  2010-05-06
Journal Detail:
Title:  Analytica chimica acta     Volume:  672     ISSN:  1873-4324     ISO Abbreviation:  Anal. Chim. Acta     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-06-28     Completed Date:  2010-09-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370534     Medline TA:  Anal Chim Acta     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  50-4     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier B.V. All rights reserved.
Affiliation:
Istituto Zooprofilattico Sperimentale LER, Dept. Chimico degli Alimenti, Bologna, Italy. simonetta.menotta@izsler.it
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MeSH Terms
Descriptor/Qualifier:
Chromatography, Gas / methods
Dioxins / analysis*,  standards
Eggs / analysis,  standards*
Environmental Pollutants / analysis,  standards*
Food Contamination / analysis*
Italy
Mass Spectrometry / methods
Polychlorinated Biphenyls / analysis,  standards*
Tetrachlorodibenzodioxin / analogs & derivatives*,  analysis,  standards
Chemical
Reg. No./Substance:
0/Dioxins; 0/Environmental Pollutants; 0/Polychlorinated Biphenyls; 0/polychlorodibenzo-4-dioxin; 1746-01-6/Tetrachlorodibenzodioxin

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