Effect of Storage Conditions on Quality of Camellia oleifera Seed Oil Produced from Different Refining Processes

The acid value,peroxide value and vitamin E content of Camellia oleifera seed oil produced from different refining processes under different storage conditions were continuously analyzed during the storage period. Results indicated that acid value and peroxide value of the oil increased constantly,while the content of vitamin E decreased during prolonged periods. The acid value and peroxide value of the oil refined from lower-temperature refining process showed roughly the same change patterns as the first-class pressed oil; however,both values were significantly lower than those of the oil refined from the classical refining process. More obvious advantages of the oil refined from lower-temperature refining process were observed when exposed to stress storage conditions such as high temperature,high light intensity during long-term storage.