Study of the microbial discrimination of fruits by PCR-DGGE: Application to the determination of the geographical origin of Physalis fruits from Colombia, Egypt, Uganda and Madagascar

► We apply DGGE to analyze all yeasts to create linkage between yeasts and their origins. ► Biological markers of yeast are considered unique biological bar code for each country. ► We proposed PCR-DGGE technique as a rapid analytical traceability tool for fruits.