Fuente: WIPO "essential oil or extracts" The present invention relates to a method for modifying the odor profile of an essential oil or an extract thereof, to an essential oil or extract obtained or obtainable by such a method, to an aroma composition comprising such an essential oil and/or extract, to a perfumed product, preferably pharmaceutical preparation, cosmetic preparation or preparation serving for nutrition or pleasure, comprising such an essential oil and/or extract and to the use of a mixture of acetic acid and nitric acid for modifying the odor profile of an essential oil and/or extract thereof.