Comparison of Bioactive Compounds Contents in Different Fruit Tissues of June-bearing Strawberry Cultivars
2010
Kim, S.K., Seoul National University, Seoul, Republic of Korea | Bae, R.N., Seoul National University, Seoul, Republic of Korea | Hwang, H.S., Seoul National University, Seoul, Republic of Korea | Kim, M.J., Seoul National University, Seoul, Republic of Korea | Sung, H.R., Seoul National University, Seoul, Republic of Korea | Chun, C.H., Seoul National University, Seoul, Republic of Korea
We evaluated the bioactive compounds including carbohydrates (CH), organic acids (OA), ascorbic acid (AA), anthocyanin (AC), and ellagic acid (EA) in the achenes, epidermis, and flesh of fully ripe strawberry fruits of the 'Maehyang', 'Seolhyang', 'Keumhyang', 'Akiheme', and 'Red pearl' cultivars. The total contents of CH, OA, AA, and AC were significantly greater in the epidermis than in other tissues, while the EA content was significantly greater in the achenes than in other tissues. The AA content of the epidermis ranged from 49.1-69.2 mgㆍ100 g-¹ FW and was significantly greater than the content of the flesh, while AA was not detected in the achenes of any of the tested strawberry cultivars. The AA contents of the epidermis and flesh of the 'Maehyang' were 69.2 and 42.2 mgㆍ100 g-¹ FW, respectively, and were greater than those of the other cultivars. The AC contents in the epidermis and achenes of the 'Keumhyang' were 74.0 mgㆍ100 g-¹ FW and 36.7 mgㆍ100 g-¹ DW, respectively, greater than those of the other cultivars. The EA content of the achenes of the 'Seolhyang' was 215.5 mgㆍ100 g-¹ DW, significantly greater than those of the other cultivars. Results indicate that the antioxidant levels and other chemical compounds of strawberry fruits vary significantly among different fruit tissues. Our results also suggest that the recently introduced Korean 'Maehyang', 'Seolhyang', and 'Keumhyang' contain higher levels of antioxidants than other major June-bearing strawberry cultivars. These cultivars are feasible selections for both growers and consumers.
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