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

Sebben, Viviane C.¹  Azambuja, Ingrid¹  Boff, Bruna de S.¹  Singer, Rodrigo B.¹  Fundação Estadual de Produção e Pesquisa em Saúde do Rio Grande do Sul, Porto Alegre, Brasil¹  Paliosa, Patrícia K.¹  Limberger, Renata P.¹  Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil¹ 

关键词: Ephedra tweediana;    Ephedra triandra;    Ephedraceae;    ephedrine;    pseudoephedrine.;   

DOI  :  10.1590/S0102-695X2008000300014

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

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 ofEphedra 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.

【 授权许可】

Unknown