the investigation of chemical components in essential oil of narcissus tazetta l. flowers under farm and natural conditions in south khorasan

abstract chemical components of narcissus (narcissus tazetta l.) essential oil investigated under farming and natural habitat conditions in south khorasan province. the essential oil was obtained using solvent extraction method. after purification, the oil was analyzed by capillary gc and gc/ms. 12 compnents making 82/82% of total oil in farm sample and 13 components making 63/86% of total oil in natural habitat sample were identified. the main constituents were dodecane (%25/30) in farm sample and (28/29%) in natural habitat, tetradecane (25/80%) in farming sample, (35/05%) in natural habitat sample. the type and amount of components, specially those with little amount showed differences in two conditions.