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Essential oil of Nepeta persica cultivated in Iran was obtained by steam distillation and supercritical (carbon dioxide) extraction methods. The oils were analysed by capillary gas chromatography using flame ionization and mass spectrometric detections. The compounds were identified according to their retention indices and mass spectra (EI, 70eV). The effects of different parameters such as pressure,...
Essential oil of Zataria multiflora Boiss, cultivated in Iran, was isolated by steam distillation and compared with supercritical fluid CO 2 extracts. The oils and extracts were analyzed by capillary gas chromatography, using flame ionization and mass spectrometric detection. Different parameters, such as temperature, pressure, extraction period (dynamic) and modifier (methanol) concentration...
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