Composition of the essential oils of commercial samples of Salvia officinalis L. and S. fruticosa Miller: a comparison of oils obtained by extraction and steam distillation

aceites esenciales age alcanfor camphor camphre chemical composition composition chimique culinary herbs distillation distilling drug plants edad essential oils feuille herbe aromatique hierbas culinarias hojas huile essentielle labiatae lamiaceae leaves plantas medicinales plante medicinale salvia fruticosa salvia officinalis solvant solventes solvents volatile compounds