Study on the antioxidant effect of volatile oil of Echinacea purpurea L.on edible oils

Peroxide value, acid value and TBA value as indexes, rapeseed oil and lard as mediums, compared with the synthetic antioxidants BHT and BHA, the antioxidant effect of volatile oil of Echinacea purpurea L.on rapeseed oil and lard was studied.The results showed that within the scope of the study, the antioxidant effect of volatile oil of Echinacea purpurea L.on rapeseed oil and lard were existed and were enhanced with the increasing amout.The antioxidant effect was obvious on rapeseed oil with the addition of 2g/kg volatile oil of Echinacea purpurea L, and the influence was almost equivalent to 0.2g/kg BHT and BHA.The antioxidant effect of volatile oil of Echinacea purpurea L.on lard was less than rapeseed oil.