Study of dioxin levels in raw milk of cows and goats in Poland
In: Proceedings of ECOpole
Online
serialPeriodical
Zugriff:
Dioxins due to their toxic properties may pose health risks. These compounds comprise seven congeners of polychlorinated dibenzo-p-dioxins (PCDDs), 10 polychlorinated dibenzofurans (PCDFs) and 12 dl-PCBs. Because the main source of human exposure to dioxins is food of animal origin, the goal of the studies was to assess the levels of 29 congeners of dioxins in cow and goat’s milk from Poland. High resolution gas chromatography coupled with high resolution mass spectrometry (HRGC-HRMS) were used to analyze more than 120 samples in the period of 2006 to 2011. In 94 samples of raw cow's milk an average concentration of PCDD/PCDFs was 0.84 ± 0.60 pg WHO-TEQ/g fat whereas the sum of 29 congeners was 1.35 ± 0.89 pg WHO-TEQ/g fat. The concentrations of dioxins and dl-PCBs were low (30% of limits for whole milk) and the samples met the requirements of the national and European legislation. Within the period of examinations two samples of cow's milk demonstrated the concentrations of PCDD/PCDFs at the action level (2 pg WHO-TEQ/g fat) whereas only one sample revealed the concentration exceeding the permissible content of PCDD/PCDFs (3 pg WHO-TEQ/g fat). Raw goat's milk contains generally higher concentrations than those found in cow’s samples tested (PCDD/PCDFs and dl-PCBs) and the average concentration of PCDD/PCDFs was 1.49 ± 0.97 pg WHO-TEQ/g fat. Of the 33 examined goat’s milk samples, 6 demonstrated the concentrations of dioxins at the “action level” whereas in 1 sample the content of dioxins exceeded the acceptable limits. The obtained results allow to conclude that cow and goat’s milk contains generally low levels of dioxins. High concentrations of dioxins found could be a result of improper feeding of food producing animals.
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Study of dioxin levels in raw milk of cows and goats in Poland
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Autor/in / Beteiligte Person: | Piskorska-Pliszczyńska, J. ; Mikołajczyk, S. ; Maszewski, S. ; Warenik-Bany, M. ; Góraj, Ł. |
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Zeitschrift: | Proceedings of ECOpole |
Medientyp: | serialPeriodical |
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