MATERIALS AND METHODS
Essential oils: Two essential oils extracted from clove bud and cinnamon bark were tested.
One hundred grams of each dry herb were mashed, dissolved with n-Hexane and extracted by
vigorous shaking at RT. The filtrate was collected and, n-Hexane was evaporated (BUCHI
Rotavapor R-200).
Microorganisms: The microorganisms used in this study were C. albicans SGY243 and
cwt1 (Kelly et al., 1987) and S. cerevisiae BY4741 and rds2 (Brachmann, 1998).
Spot dilution method: The yeast strains were grown in regular liquid yeast peptone
dextrose (YPD) overnight. Cells were serially diluted and spotted on appropriated plates,
containing 100 μl of herbal oils at the final concentrations of 0 to 250 mg/ml. Cells were incubated
at 30 ºC for 48 h. The minimum fungicidal concentration was estimated.