Elevated PCDD/F levels and distinctive PCDD/F congener profiles in free range eggs

Jing Fang Hsu, Chun Chen, Pao Chi Liao

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Chicken eggs are one of the most important foods in the human diet all over the world, and the demand for eggs from free range hens has steadily increased. Congener-specific analyses of 17 polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were performed on 6 free range and 12 caged chicken egg samples collected in Taiwan. The mean level of PCDD/Fs in the free range egg samples was 5.7 (1.79/0.314) times higher than those in the caged egg samples. Principle component analysis revealed that at least three characteristic patterns of PCDD/F congener were observed among the 18 egg samples. The different PCDD/F congener patterns between free range and caged egg samples may reflect distinctive exposure scenarios among the free range and caged hens. We suggest that the differences of PCDD/F levels and congener patterns between free range and caged egg samples give rise to the issues related to the safety of eating free range chicken eggs. The present data may provide useful information for further investigation of the possible PCDD/F sources in the contaminated free range eggs.

Original languageEnglish
Pages (from-to)7708-7714
Number of pages7
JournalJournal of Agricultural and Food Chemistry
Volume58
Issue number13
DOIs
Publication statusPublished - 2010 Jul 14

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)

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