Therefore, in addition to the lessvolatile antioxidants, low molecular weight compounds, socalled aroma or volatile chemicals, found in plant extracts have begun to receive much attention as natural antioxidants today.6 The antioxidant activity of various plant extracts and their constituents has been reported in many articles.1,7 In the present study, the antioxidant activity of extracts from three medicinal plantsMulberry (Morus alba L.), Camellia sinensis, and Cudrania tricuspidata (Carr.) Bureagrown in Korea, and their volatile components were measured to search for possible natural antioxidants