Research Article

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Anti-Bacterial Agents; Antifungal Agents; Carbon Dioxide; Flowers; Plant Extracts; Solanaceae

Brunfelsia genus is traditionally utilized in popular medicine due to its antibacterial and antifungal properties to name but a few. However, studies on the antimicrobial activity of Brunfelsia uniflora flower oleoresin have not been found yet. This study aimed to evaluate the chemical composition and antimicrobial activity of B. uniflora flower oleoresin obtained by supercritical carbon ... more

L.C.T. Thiesen; E. Y Y Sugauara; V. Tešević; J. Glamočlija; M. Soković; J.E. Gonçalves; Z.C. Gazim; G.A. Linde; N.B. Colauto
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In this study, the temperature and pressure of supercritical CO extraction were evaluated to obtain oleoresin of Brunfelsia uniflora leaves and flowers. The oleoresin compounds were identified by gas chromatography-mass spectrometry. The antioxidant activity was evaluated by three different methods. The highest oleoresin yields were 3.32% at 40°C and 200 bar for the leaves, and 1.03% at 60°C ... more

L.F. Jorge; A.B. Meniqueti; R.F. Silva; K.A. Santos; E.A. Da Silva; J.E. Gonçalves; C.M. De Rezende; N.B. Colauto; Z.C. Gazim; G.A. Linde
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Studies addressing chromosome variations have elucidated many points regarding the taxonomy of the Orchidaceae. Epidendrum L. besides being one the largest orchid genera, present remarkable morphological, and inter- and intraspecific chromosome variations. Thus, based on a previous report on flower color variation in individuals of E. ibaguense (magenta, pink, white, and red), our aim was to ... more

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