Total Phenolic Contents and Biological Activities of Korean Seaweed Extracts

Kim, S.J.; Woo, S.O.; Yun, H.Y.; Yum, S.S.; Choi, E.S.; Do, J.R.; Jo, J.H.; Kim, D.G.; Lee, S.C.; Lee, T.K.

Journal Article

Total Phenolic Contents and Biological Activities of Korean Seaweed Extracts [2005]

Kim, S.J. (Korean Ocean Research and Development Institute, Geoje, Republic of Korea); Woo, S.O. (Korean Ocean Research and Development Institute, Geoje, Republic of Korea); Yun, H.Y. (Korean Ocean Research and Development Institute, Geoje, Republic of Korea); Yum, S.S. (Korean Ocean Research and Development Institute, Geoje, Republic of Korea); et al.

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Crude extracts of thirty seaweeds collected in Korea were obtained using 50% ethanol, and total phenolic contents and antioxidant activities were compared. Two brown algae, Ecklonia cava (E. cava) and Sargassum siliquastrum (S. siliquastrum), showing high antioxidant activity based on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and superoxide anion radical scavenging activity were further investigated for their inhibitory effects on tyrosinase activity. The E. cava extract had the highest total phenolic content among the seaweeds extracts.