Fig. 2From: Fast and reliable detection of toxic Crotalaria spectabilis Roth. in Thunbergia laurifolia Lindl. herbal products using DNA barcoding coupled with HRM analysisMelting curves obtained by high resolution melting analysis of the two ‘Rang Chuet’species. a Specific amplicons and applied to reference mixtures containing 50, 25, 12, 6, 3 and 1 % of C. spectabilis in T. laurifolia.b Difference graph of ten commercial herbal products using T. laurifolia as reference species. Data are from a single experimentBack to article page