Patents

Curcuma aromatica essential oil is blue-black dark liquid with camphoraceous, woody, amber and spicy characteristic odor and is less valued in market, however the prepared value added products have very good shining color with the improved fragrance. The invention relates to an efficient process for the modification of Curcuma aromatica essential oil to develop value added fragranced products, the process comprising the steps of mixing of essential oil with one solvent or a combination of more than one solvents, cooling the mixture over ice bath or at lower temperature at rotation of 1000 rpm or at simple magnetic stirrer at high speed, addition of reducing agent at different proportion at a certain time period for desired product, after completion of the reaction, addition of ice water to the reaction mixture to terminate the reaction, extracting the mixture using solvent for three to five times, washing the extractive with dilute acidic water and then with water, washed product was dried at lower temperature to obtain modified essential oils in order to develop fragranced products with recovery of 60 to 95% and use of the modified essential oil in the range between 0.05 to 100% in perfumery or allied industries.