Chemical composition and antimicrobial activity of Hedyosmum brasiliense Miq., Chloranthaceae, essential oil
Hedyosmum brasiliense Miq., Chloranthaceae, is an endemic species of Brazil, locally known as "cidrão". Although H. brasiliense is popularly used as sedative, chemical constituents of this species remains uncharacterized. This work presents the essential oil composition, obtained by distillation of the fresh leaves and from a stored sample for three months, analysed by GC-FID and GC-MS. The inhibitory effects of essential oil were tested by the agar dilution method against six bacterial species (Bacillus subtilis, Escherichia coli, Proteus mirabilis, Pseudomonas aeruginosa, Staphylococcus aureus and S. saprophyticus). In addition, six fungal species (Candida albicans, C. parapsilosis, Microsporum canis, M. gypseum, Trichophyton rubrum and T. mentagrophytes) were included. Among the determined constituents, α-terpineol (10.2%), curzerene (8.9%), pinocarvone (8.4%) and β-thujene (7.1%) were found as the main components. The essential oil has only low activity against Gram-negative microorganisms. However, is remarkable active against Gram-positive bacteria and fungi with MIC values ranging from 0.125 to 2.5% (v/v).
Main Authors: | Kirchner,Karoline, Wisniewski Jr,Alberto, Cruz,Alexandre Bella, Biavatti,Maique W., Netz,Daisy J. A. |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Farmacognosia
2010
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2010000500007 |
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