Antioxidant and α-glucosidase inhibition activity of seaweed extracts

해조류 추출물의 항산화 및 α-glucosidase 저해 활성

  • Kim, Jin-Hak (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Kang, Hye-Min (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Lee, Shin-Ho (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Lee, Ju-Young (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Park, La-Young (Department of Food Science and Technology, Catholic University of Daegu)
  • 김진학 (대구가톨릭대학교 식품공학전공) ;
  • 강혜민 (대구가톨릭대학교 식품공학전공) ;
  • 이신호 (대구가톨릭대학교 식품공학전공) ;
  • 이주영 (대구가톨릭대학교 식품공학전공) ;
  • 박나영 (대구가톨릭대학교 식품공학전공)
  • Received : 2014.12.26
  • Accepted : 2015.04.13
  • Published : 2015.04.30


The antioxidant and ${\alpha}$-glucosidase inhibition activities of 10 kinds of seaweeds Ecklonia cava (EC), Ecklonia stolonifera (ES), Eisenia bicyclis (EB), Capsosiphon fulvescens (CF), Sargassum fulvellum (SF), Undaria pinnatifida (UP), Sargassum thunbergii (ST), Codium fragile (CFr), Hizikia fusiformis (HF), and Enteromorpha prolifera (EP) were investigated. Among all the tested seaweed extracts, the total polyphenol and flavonoid contents of the EB extract were highest 150.81 mg/g and 77.02 mg/g, respectively. The DPPH and ABTS radical scavenging abilities of the EB ethanol extract (1 mg/mL) were 86.26% and 99.71%, respectively, and its SOD-like activity and reducing power were 21.34% and 1.710 ($OD_{700}$). The ${\alpha}$-glucosidase inhibition activities of the EC, EB, and ST were above 98% at the 0.1 mg/mL concentration. These results suggest that seaweed extracts effectively prevent the what of antioxidants and decrease the blood glucose level, and may be used to develop various functional products.


Supported by : 산업통상자원부


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