7 resultados
Background/aim: Despite being a rare disease, melanoma is considered the most dangerous skin cancer due to its highly invasive and aggressive nature, and still requires for more effective treatments. The aim of this study was to evaluate
From dichloromethane extracts of flowerheads of Achillea pannonica Scheele three sesquiterpenes were isolated and identified: 11,13-dehydrodesacetylmatricarin, (6E)-5-tigloxy-9-hydroxynerolidol and alpha-longipin-2-en-1-one. The structures were determined by MS, IR and NMR spectroscopic analyses,
OBJECTIVE
To determine the contributions of main chemical compositions of extracts of Eucalyptus camaldulensis represented by GC/MS elute peaks to the molluscicidal activities, and explore a shortcut of looking for the effective components from natural products.
METHODS
E. camaldulensis leaves were
The volatile components from Croton campestris root bark were localized by an anatomical study and analyzed by gas chromatography-mass spectrometry for the first time. The roots of this plant showed secretory cells. These volatile constituents, isolated from the dichloromethane extract by
Lophostemon suaveolens is a relatively unexplored endemic medicinal plant of Australia. Extracts of fresh leaves of L. suaveolens obtained from sequential extraction with n-hexane and dichloromethane exhibited antibacterial activity in the disc diffusion and MTT microdilution assays against
The dichloromethane extract of leaves of Cordia salicifolia Cham. (Family Boraginaceae) was fractionated by SiO(2) column chromatography and analyzed by gas chromatography, gas chromatography-mass spectrometry, and nuclear magnetic resonance spectroscopy. The apolar extract is characterized by a
BACKGROUND
The twigs of Elytropappus rhinocerotis are widely used in the Cape region of South Africa to treat foot odour, perspiration and also itchy, chilblained and burning feet. However, no antimicrobial studies have hitherto been published on this popular Cape herbal medicine, which is also used