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DNA testing service promises high level of accuracy

20 May 2014

Food advisory and testing group, Exova, has invested in new equipment that allows it to offer the latest authentication DNA analysis to test food products for the presence of beef, pork, lamb, poultry and horse.

The polymerase chain reaction (PCR) equipment amplifies fragments of DNA to confirm the meat source is precisely as claimed. During PCR, by alternately heating and cooling the target DNA, through a defined series of temperature steps, the source content or the presence of any undeclared animal protein – even as little as 0.1% can be precisely confirmed.
Pat McNamara, operations manager at Exova said: “This accredited capability ensures a high level of accuracy and gives customers essential confirmation of the validity of the meat content of their products.
“We can provide documented proof of authenticity, avoiding any misjudgement and addressing any potential confusion regarding product contents.”
As well as source confirmation, for which accreditation is also being sought for other meat species, the PCR process can be applied across a range of testing, from the detection of food poisoning organisms of emerging significance to rapid analysis of Legionella.

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