한방 약용자원으로 이용되고 있는 순비기나무(Vitex rotundifolia)의 종자를 건조시킨 만형자를 새로운 항산화제나 생리활성 소재로 활용하기 위한 연구의 일환으로 물추출물(WE)과 에탄올 추출물(EE) 그리고 열수 추출물(HWE)에 함유된 플라보노이드와 폴리페놀 화합물 함량을 분석하였고, 각 추출물을 의 농도로 희석하여 항산화 활성 및 tyrosinase 저해활성을 측정하였다. 플라보노이드 화합물 함량은 만형자 추출물 중 EE에서 31.0
The purpose of this study was to measure flavonoid and polyphenol contents, and physiological activities of various extracts from Vitex rotundifolia seeds (known as Man Hyung Ja). We obtained three extracts using water (WE), ethanol (EE) and hot water (HWE). The EE sample had the highest flavonoid content of 31.05 mg/g. Polyphenol contents of WE and HWE were 186.69 mg/g and 182.55 mg/g, respectively. HWE had the highest superoxide dismutase (SOD)-like activity, at 83.40%. The electron donating abilities (EDA) were at the concentration of 1.0 mg/mL, and all of extracts showed more than 88% EDA even at a concentration of 0.1 mg/mL. The inhibitory rates of xanthine oxidase were when 1.0 mg/mL extracts were used, and all extracts showed more than 90% inhibition at 0.5 mg/mL. The nitrite scavenging abilities were at pH 1.2 and 1.0 mg/mL extract concentration; these abilities decreased as pH increased. Tyrosinase inhibition activities of HWE and WE were 48.58% and 46.67%, respectively. These results indicate that Vitex rotundifolia seeds extract might be an effective antioxidative activity.