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- Title
Chemical Composition and Biological Activity of Volatile Extracts from Leaves and Fruits of Schinus terebinthifolius Raddi from Tunisia.
- Authors
Piras, Alessandra; Marzouki, Hanen; Falconieri, Danilo; Porcedda, Silvia; José Gonçalves, Maria; Cavaleiro, Carlos; Salgueiro, Ligia
- Abstract
Volatile oils composition from leaves and ripe fruits of pink pepper (Schinus terebinthifolius Raddi) growing in Tunisia were investigated using GC-FID and GC-MS techniques. Volatile oil extraction was achieved by hydrodistillation (HD) using a Clevenger apparatus and by supercritical fluid extraction (SFE) using carbon dioxide. All plant organs, gave SFE extracts chiefly composed by α-pinene, α-phellandrene, β-phellandrene, germacrene D and bicyclogermacrene. In the case of the fruits, both extraction techniques gave volatile oils of similar composition; whereas the comparison between the HD and SFE leave oils revealed important differences in the content of α-pinene (6.1 % vs traces), α-phellandrene (22.7 % vs 0.8 %) and β- phellandrene (14.6 % vs 1.2 %). All volatile samples were evaluated against yeasts and dermatophyte strains, being more active against Cryptococcus neoformans, particularly the volatile oil from the fruits, with MIC values of (0.32-0.64) mg/mL. Moreover, this oil revealed an inhibitory effect on germ tube formation in C. albicans at sub-inhibitory concentration. At the concentration of MIC/8 the inhibition of filamentation was more than 70 %.
- Subjects
TUNISIA; ESSENTIAL oils; BRAZILIAN pepper tree; PLANT extracts; CRYPTOCOCCUS neoformans; SUPERCRITICAL fluid extraction
- Publication
Records of Natural Products, 2017, Vol 11, Issue 1, p9
- ISSN
1307-6167
- Publication type
Article