Diana Simona AntaL, Dorina Coricovac, Codruta Marinela Soica, Florina Ardelean, Iulia PAnzaru, Corina Danciu, VicenTiu Vlaia, Claudia Toma <br>High Cadmium Content in Wild - Growing  Medicinal Plants from South- Western Romania Unexpected Results of a Survey on 29 Species

Diana Simona AntaL, Dorina Coricovac, Codruta Marinela Soica, Florina Ardelean, Iulia PAnzaru, Corina Danciu, VicenTiu Vlaia, Claudia Toma
High Cadmium Content in Wild - Growing Medicinal Plants from South- Western Romania Unexpected Results of a Survey on 29 Species

Abstract:

The toxicological importance of cadmium, and the fact that Romania is one of the main suppliers of wild-growing medicinal plants, determined us to perform a large-scale investigation of wild-growing species in what their Cd content is concerned, and to evaluate the extraction ratio of this element onto herbal teas. The analysis of 96 samples, carried out through Inductively Coupled Plasma - Mass Spectrometry (ICP-MS), revealed an average Cd content of 0.501 mg/kg in the medicinal plants collected from the Aninei Mountains (South-Western Romania). This value exceeds the limit of 0.30 mg Cd/kg set by the World Health Organization. Wild pansy (Viola tricolor) has a particular capacity to accumulate this element (mean value of 5.2 mg/kg); it should not be wild-collected from the investigated area. Furthermore, products from this species intended for pediatric use should not be commercialized without systematic analysis of Cd content. The average extraction ratio of Cd through decoction is of 19%. Herbal teas may contribute to up to 9% of the Provisional Tolerable Weekly Intake for Cd. The present research presents the first large-scale survey of wild-growing Romanian plants with regard to their Cd content. Keywords: cadmium (Cd ), medicinal plants, ICP-MS, herbal teas, extraction yield

Issue: 2014, Volume 65, Issue 9

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