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- Title
Metals Content in Herbal Supplements.
- Authors
Barrella, Michelle; Heringer, Otavio; Cardoso, Priscylla; Pimentel, Elisangela; Scherer, Rodrigo; Lenz, Dominik; Endringer, Denise
- Abstract
Obesity has become an international epidemic. To evaluate the level of metals in extracts of plants prescribed as weight loss supplements, different brands containing Camellia sinensis (L.) Kuntze, Citrus aurantium L., Cordia ecalyculata Vell, Ilex paraguariensis A. St.-Hil, Cissus quadrangularis L., Senna alexandrina Mill were purchased in local market, hot acid digested, and analyzed while metal content by inductively coupled plasma optical emission spectrometry, ICP-OES. Quality assurance and quality control tests were carried out in order to monitor and control the reliability of the analytical method. For each metal evaluated, a calibration curve was prepared with certified reference material. The recovery test was performed for each batch of samples. Analyses were performed in triplicate. Quantification of aluminum, barium, cadmium, cobalt, chromium, copper, iron, lithium, manganese, molybdenum, nickel, lead, vanadium, and zinc were determined. The metals most frequently detected were manganese (15.3-329,60 mg kg) aluminum (11.76-342.4 mg kg), and iron (11.14-73.01 mg kg) with higher levels in products containing C. sinensis China origin, I. paraguariensis Brazilian origin, C. quadrangularis, and C. aurantium China origin, respectively. To ensure safety consumption, an adequacy of the certification of Brazilian suppliers for herbal weight loss products is indispensable.
- Subjects
METALS; INFUSIONS (Plant products); TEA; SOUR orange; MATE plant; SENNA alexandrina; OBESITY
- Publication
Biological Trace Element Research, 2017, Vol 175, Issue 2, p488
- ISSN
0163-4984
- Publication type
Article
- DOI
10.1007/s12011-016-0776-2