Abstract:  Four kinds of essential oil from perfume material, namely clove essential oil, cinnamon essential oil, litsea cubeba essential oil and origanum vulgare lessential oil obtained with supercritical CO2 extraction, were proportionally mixed to prepare four kinds of mulriple preservations with different concentrations. With vacuum pack and store at 0～4℃, the pork preservation was studied by mulriple preservations according to the fresh degree integrating evaluation of pork samples such as mensuration of physicochemical properties, microorganism and sense indexes. Results showed that the mulriple preservation, composed of 9% origanum vulgare lessential oil, 9% clove essential oil, 9% litsea cubeba essential oil and 9% cinnamon essential oil, has perfect effects of extending preservation time combined technology of vacuum park.

Key words: essential oil of perfume material, refrigerating pork, preservation, anti-bacteria