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  • Title: Essential oils from Piper cernuum and Piper regnellii: antimicrobial activities and analysis by GC/MS and 13C-NMR.
    Author: Costantin MB, Sartorelli P, Limberger R, Henriques AT, Steppe M, Ferreira MJ, Ohara MT, Emerenciano VP, Kato MJ.
    Journal: Planta Med; 2001 Nov; 67(8):771-3. PubMed ID: 11731928.
    Abstract:
    The essential oils of Piper cernuum and Piper regnellii leaves were analyzed by gas chromatography-mass spectrometry (GC-MS) and the results were compared to that obtained by means of a program designed to analyse (13)C-NMR data of complex mixtures. Bicyclogermacrene (21.88 %)/beta-caryophyllene (20.69 %) and myrcene (52.60 %)/linalool (15.89 %) were the major constituents in essential oil from leaves of P. cernuum and P. regnellii, respectively. Both essential oils presented growth inhibitory activities against Staphylococcus aureus and Candida albicans.
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