Now, DNA barcodes that detect meat's variety

Worried after the Horsegate? Check the barcode!
Researchers have suggested that using a new DNA based barcode can identify the kind of meat served on your plate.
Results from a new study show that the labelling of game meat in South Africa is very poor with different species being substituted almost 80 per cent of the time.
Horsegate was one of the names given to the 2013 meat scare in UK, in which horsemeat was found in prepared frozen meat products and ready meals that were said to contain beef.
In South Africa, game meat biltong (air dried strips) is big business with over 10,000 wildlife farms and is supplemented by private hunting, 'Science Daily' reported.

This meat is considered to be 'healthier' than beef because it is lower in fat and cholesterol and perceived to be lower in additives.

Using mitochondrial COI DNA barcoding and cytb sequencing, researchers analysed samples of game meat from supermarkets, wholesalers and other outlets and compared them to known samples and library sequences. From 146 samples over 100 were mislabelled.
All the beef samples were correct, but for the most badly labelled case 92 per cent of kudu was a different species. Only 24 per cent of springbok and ostrich biltong was actually springbok or ostrich.
The rest was horse, impala, hartebeest, wildebeest, waterbok, eland, gemsbok, duiker, giraffe, kangaroo, lamb, pork or beef.

Worryingly one sample labelled zebra was actually mountain zebra, a 'red listed' species threatened with extinction.
"The delivery of unidentifiable animal carcasses to market and the general lack of regulations increases the chances of species mislabelling and fraud," Maria Eugenia D'Amato from the University of the Western Cape said.
"This has implications for species safety but also has cultural and religious implications. This technique is also able to provide new information about the identity of animals and meant that we found several animals whose DNA had been misidentified in the scientific libraries," said Maria.
The study was published in the journal Investigative Genetics.