Publications

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antimicrobial activity and chemical composition of the bark oil of croton stellulifer, an endemic species from s. tomé e príncipe.the composition and the antimicrobial activity of the bark oil of croton stellulifer, an endemic and rare species of these islands (s. tomé and príncipe) are reported. analysis was carried out by gc, gc/ms and 13c-nmr. the major constituents were alpha-phellandrene (15.4-18.6%), p-cymene (14.4-17.7%), linalool (12.0-12.6%) and alpha-pinene (8.1-9.1%). kessane, a sesquiterpenoid oxide, not yet reported in the genus croton, was identified by nmr. the essential oil of c. stellulifer was active agai ...200011105572
essential oil composition and antimicrobial activity of santiria trimera bark.the composition and the antimicrobial activity of the bark oil of santiria trimera (oliv.) aubrév., a plant widely used by the traditional healers in s. tomé and príncipe, especially for wound healing, are reported for the first time. the analysis of the essential oil was carried out by gc and gc-ms. the oil contains a high content of monoterpenes, alpha-pinene (66.6 %) being the major constituent, followed by beta-pinene (20.0 %). the essential oil was active against both bacteria and fungi str ...200312567287
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