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Essential oils from four Piper species
Martins, A. P.; Salgueiro, L.; Vila, R.; Tomi, F.; Cañigueral, S.; Casanova, J.; Cunha, A. Proença da; Adzet, T.The essential oils from Piper capense, P. nigrum, P. guineense and P. umbellatum from S. Tomé e Príncipe were investigated for the first time. They were analysed by GC, GC-mass spectrometry and 13C NMR. Monoterpene hydrocarbons were the main group of constituents in three of the samples (P. capense, P. nigrum and P. umbellatum), whereas for the other species (P. guineense) phenylpropanoid derivatives were the m...
Date: 1998
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Origin: Estudo Geral - Universidade de Coimbra