Abstract
-dimethyl-p-phenylenediamine dihydrochloride assay, aqueous extract, ethanol extract, and butylated hydroxyanisole (BHA) had an activity of 54.16, 31.42, and 26.56%, respectively. In the beta-carotene assay, while the ethanol extract showed similar results to those of BHA, the aqueous extract demonstrated slightly better results. The results indicated that the activities of the extracts of white cedar cones were higher compared to the synthetic antioxidants in some of the tests. This might suggest that white cedar cones could be used as a new source of antioxidant compounds upon further investigation, and increase their value.