Investigation of the presence of ephedrines in Ephedra tweediana Fisch & C.A. Meyer and E. triandra Tul. (Ephedraceae) collected in Porto Alegre/RS

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Abstract

Samples of Ephedra tweediana, collected from native populations occurring in the Reserva Biológica do Lami José Lutzenberger (Porto Alegre, RS, Brazil), and from cultivated plants of Ephedra triandra were submitted to extraction with acetone, derivatized with cyclohexanone and analyzed by GC/MS. In order to verify the efficiency of the methodology, besides Ephedra tweediana and E. triandra, samples of five commercial Ephedra extracts were analyzed, from distinct origins, get up from local drugstores. The results showed the absence of ephedrines in Ephedra tweediana and E. triandra, and the presence of ephedrine and/or pseudoephedrine in commercial samples.

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Boff, B. D. S., Sebben, V. C., Paliosa, P. K., Azambuja, I., Singer, R. B., & Limberger, R. P. (2008). Investigation of the presence of ephedrines in Ephedra tweediana Fisch & C.A. Meyer and E. triandra Tul. (Ephedraceae) collected in Porto Alegre/RS. Revista Brasileira de Farmacognosia, 18(3), 394–401. https://doi.org/10.1590/S0102-695X2008000300014

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