Introduction
The use of genetically modified organisms (GMO) as food and in food products is becoming more and more widespread. The most cultivated GMO is the Roundup Ready (RR) soybean, which represents the staple constituents of many foods.
The addition of soya proteins to processed meat products has significantly increased in recent years due to the interesting functional and nutritional properties of these vegetable proteins. Soya proteins help to improve technological processes used in the manufacture of meat products and reduce their formulation cost. In addition the demands of consumers for healthier and safer products have also promoted the use of soya proteins in processed meat products as fat replacers (Castro-Rubio et al. 2005).
Current EU regulations stipulate that products containing an ingredient of which 0.9% originates from a GM product must be labelled. The law in Serbia is according to the law in the EU, hence it forbids introduction of GMO into the environment and demands labelling of food containing more than 0.9% of GMO.
The objective of this work was to determine the number of meat products derived from genetically modified soybean in food on the Serbian food market using a conventional qualitative Polymerase Chain Reaction (PCR) assay to detect the presence of RR soya and a real-time PCR to quantify the amount of RR soya present in positive samples.
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