넓패(Ishige foliacea) 추출물의 생리활성 탐색 = In Vitro Screening of the Physiological Activities of lshige foliacea Extracts

다국어 초록 (Multilingual Abstract)

Ishige foliacea belongs to class Phaeophyceae and family Ishigeaceae. This study investigated the physiological activities of the Korean marine algae I. foliacea. Its solvent extracts were prepared with 70% ethanol, 80% methanol, and distilled water. The ethanol and methanol extracts had higher α-glucosidase (half-maximal inhibitory concentration, IC50: 0.67–0.73 mg/mL), xanthine oxidase (IC50: 0.25–0.28 mg/mL), and angiotensin-converting enzyme (IC50: 25.29–38.28 μg/mL) inhibitory activities than those of the water extract. The ethanol and methanol extracts possessed high acetylcholinesterase inhibitory activity (IC50: 0.78–0.97 mg/mL). Conversely, the water extract exhibited the highest β-secretase inhibitory activity (IC50: 0.48 mg/mL). These results indicate that I. foliacea may be useful as a functional substance in food and pharmaceuticals with anti-diabetic, anti-gout, anti-hypertension, and anti-dementia properties.