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STHN-PCR analysis of DNA from authentic PDO Mozzarella di Bufala Campana samples and mozzarella imitations made with buffalo milk from foreign countries. Three-tenths of each STHN-PCR product was loaded onto a 2% agarose gel. Lane 1, 100 bp DNA ladder; lane 2, negative control; lanes 3–5, PDO MdBC samples from the PDO area; lanes 6–7, mozzarella imitation samples made with buffalo milk from Romania; lane 8, mozzarella imitation sample made with buffalo milk from Bulgaria.
