SciELO - Scientific Electronic Library Online

 
vol.45 issue2Application of the EROD-H4IIE bioassay for the determination of dioxins in pork in comparison to high resolution gas chromatography coupled to high resolution mass spectrometryVascularization, morphology and histology of ovary in armadillo Euphractus sexcinctus (Linnaeus, 1758) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Archivos de medicina veterinaria

Print version ISSN 0301-732X

Abstract

VALDOVINOS, CE; BUSTOS-LOPEZ, C; SAMSING, F  and  SCHOFFER, JT. Application of a model to estimate total concentrations of dioxins and DL-PCBs in pork production in Chile. Arch. med. vet. [online]. 2013, vol.45, n.2, pp.183-190. ISSN 0301-732X.  http://dx.doi.org/10.4067/S0301-732X2013000200010.

This research presents a model to estimate the total concentration or CTotal of dioxins (PCDD), furans (PCDF) and dioxin-like polychlorinated biphenyls (DL-PCBs) in pork. The model was applied considering the categories of raw materials that make up two reference diets for pig production in Chile. Samples of such raw materials were analyzed to detect PCDD/Fs and DL-PCBs using the EROD-H4IIE bioassay (determination of 7-ethoxyresorufin-O-deethylase activity in the H4IIE rat hepatoma cell line). The results obtained from the bioassay were used to model dietary accumulation, considering different percentages of absorption of these contaminants. In all the cases considered, a decrease in CTotal was observed if the production cycle was extended to 220 days. Risk values were proposed for each category of raw materials that compose the reference diets and these were classified into four levels according to the concentration of PCDD/Fs and DL-PCBs estimated in pork at the time of slaughter. The modeling results for both diets indicate a very high level of risk for vegetable and mineral components of the diet. A high level for vegetable oils and fatty acids of animal origin and a low risk level for animal meals, binders and anti-caking agents, dairy products and premixes.

Keywords : transfer model; dioxins; risk; pork.

        · abstract in Spanish     · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License