Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 60, Issue 44, Pages 10998-11004Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf303106r
Keywords
saffron; quality control; molecular markers; bulking agents; adulteration
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A method based on sequence-characterized amplified regions (SCARs) was developed from random amplified polymorphic DNA markers (RAPDs) specific for Arnica montana L., Bixa orellana L., Calendula officinalis L., Carthamus tinctorius L., Crocus vernus L. (Hill), Curcuma longa L., and Hemerocallis sp. to detect these common bulking agents in commercial saffron (Crocus sativus). The method enabled the unequivocal detection of low amounts (up to 1%) of each adulterant, allowing the preemptive rejection of suspect samples. Its enforcement limits the number of samples to be subjected to further evaluation with pharmacognostic or phytochemical analyses, especially when multiple batches have to be evaluated in a short time The dimension of the amplicons is suitable for the analysis of degraded DNA obtained from dried, stored, processed, and finely ground commercial material. Proper SCAR markers may represent a fast, sensitive, reliable, and low-cost screening method for the authentication of dried commercial saffron material.
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