Thus a CaMV 35 S positive result in processed foods containing these vegetables in the formulation will not confirm the presence of a GM material, but indicates a probability (Anonymous, 2005; Cardarelli et al., 2005; Ujhelyi et al., 2008). In our study, all six of these nos negative soy samples (bread, flour and dehydrated soup) were determined to be RUR soy and thus confirmed that these samplesare true positive.