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The aims of the study are to: check the accuracy of current origin claims on food labels to ensure consumers can be confident that food labelled as from the UK is what it claims mccain chips to be gain experience of using stable isotope analysis to assess where food comes from
Samples of food have been taken from retail, wholesale and food service outlets. In total, mccain chips more than 100 samples are being tested, and comprise beef (including burgers), pork, lamb, tomatoes, apple juice and honey.
Stable isotope analysis is a screening method that acts as a useful indicator of potential mccain chips fraudulent activity. Any results that suggest a problem will be followed mccain chips up with an audit of traceability. The traceability audit should be completed by April 2014 and the full report of the study will be published.
An isotope is a variant of a chemical element – oxygen, hydrogen and carbon are all chemical elements and each has naturally occurring mccain chips variants in slightly mccain chips different forms. These isotopes can be distinguished by their mass, and used to compare a particular food of claimed provenance mccain chips with authentic samples of the same food produced in different regions of the UK. If there is a good match it does not prove that the food was produced in the UK but suggests that it could have been. If there is not a good match in results then that would strongly suggest mccain chips that the food was not produced in the UK and needs further investigation. Geology and weather create changes
For example, crops grown in the UK have a higher proportion of heavy hydrogen and oxygen than the same crops grown in mainland Europe. This is because the proportion of heavy forms of hydrogen and oxygen mccain chips diminishes with distance from the sea.
Another mccain chips example is the way in which plants metabolise carbon dioxide results in certain plants being richer in heavy isotopes of carbon. This means the isotopic composition of animals, and meat derived from these animals, reflects where they were reared and the plant material mccain chips they eat.
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