What are dioxines and furans? The term Dioxin is commonly used to refer to a family of toxic chemicals that all share a similar chemical structure and a common mechanism of toxic action. Most dioxins and furans are not manmade or produced intentionally, but are created when other chemicals or products are made. This family includes: seven of the polychlorinated dibenzo dioxins (PCDDs), ten of the polychlorinated dibenzo furans (PCDFs) and twelve of the polychlorinated biphenyls (PCBs). · PCDD · 2,3,7,8TCDD · PCDF · PCB · PCDDs and PCDFs are not commercial chemical products but are trace level unintentional byproducts of most forms of combustion and several industrial chemical processes. Of all of the dioxins and furans, one, 2,3,7,8tetrachloropdibenzo dioxin (2,3,7,8 TCDD) is considered the most toxic. · PCBs were produced commercially in large quantities until production was stopped in 1977. .
02 and 1 mg/kg of fat, 2008). In the case of antibiotics, microbio- while in the United States they are estab- logical tests such as the European Four Plate lished between 0.1 and 7 mg/kg fat (Iamiceli Test can be used. Screening tests are useful et al. 2009). because they are rapid, but they are unable to The contaminants described above, as confirm the results because they can only well as polychlorinated biphenyls (PCBs) (a give qualitative or semiquantitative data. The family of 209 compounds that were used in next step for suspicious samples (suspected lubricating oils and heat exchange fluids), of being noncompliant) is a confirmatory mycotoxins produced by molds and marine analysis through gas or high performance toxins, and heavy metals, among others, can liquid chromatography coupled with mass be present in feeds used for farm animals.
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