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Contribution for the phytochemical studies of Ageratum fastigiatum

2011; Springer Science+Business Media; Volume: 21; Issue: 6 Linguagem: Inglês

10.1590/s0102-695x2011005000151

1981-528X

Lucas D. Gonçalves, Hugo Almeida, Patrícia Machado de Oliveira, Norberto Peporine Lopes, Izabel Cristina Casanova Turatti, Fernando Costa Archanjo, Cristiane Fernanda Fuzer Grael,

Phytochemicals and Antioxidant Activities

Organic extracts from leaves plus branches plus inflorescences of Ageratum fastigiatum (Gardner) R. M. King & H. Rob., Asteraceae, were fractionated through classic chromatography. The steroids stigmasterol, chondrillasterol and campesterol were isolated from hexane extract. The triterpenes lupeol, taraxasterol, α-amyrin, β-amyrin, pseudotaraxasterol, lupeol acetate and α-amyrin acetate were isolated from ethyl acetate extract. Steroids and triterpenes were identified by GC-MS. The coumarin ayapin was isolated from ethanol extract and identified by NMR. Essential oils of the fresh leaves and fresh inflorescences were obtained by hydrodistillation and analyzed for GC-MS. The main components in both essential oils were α-pinene, limonene and germacrene D.