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Lim, Sujin; Choi, An-Hong; Kwon, Misung; Joung, Eun-Ji; Shin, Taisun; Lee, Sang-Gil; Kim, Nam-Gil; Kim, Hyeung-Rak
Food chemistry, 04/2019, Letnik: 278Journal Article
•S. serratifolium contain a high level of meroterpenoids as antioxidant compounds.•Ethyl acetate, ethanol, and methanol extracts showed high TPC and antioxidant capacity.•SHQA, SCM and SQA are main antioxidant components in S. serratifolium. Sargassum serratifolium has been known to contain a high level of meroterpenoids as antioxidant components. We investigated antioxidant activities and active components in various solvent extracts from S. serratifolium. Ethyl acetate, ethanol, and methanol extracts showed relatively strong DPPH, ABTs, and superoxide radical scavenging activities. Hexane and ethyl acetate extract showed the strongest hydroxyl radical and reactive oxygen species (ROS), respectively, scavenging activities. Sargahydroquinoic acid (SHQA), sargachromanol (SCM) and sargaquinoic acid (SQA) were main antioxidant components in S. serratifolium. Ethanol extract showed the highest levels of SHQA, SCM, and SQA which comprised to be 227 ± 6.31 mg/g. SHQA and SCM exhibited stronger antioxidant capacities than SQA based on lower IC50 values in ROS, DPPH, ABTs, and superoxide radical scavenging assays. The result showed that ethanol is the most efficient extracting solvent for the active components from S. serratifolium and the plant has the potential as a natural antioxidant.
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