추출용매에 따른 아로니아 추출물의 생리 활성
Physiological activities of Aronia melanocarpa extracts on extraction solvents
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초록
본 연구에서는 페놀성물질 및 안토시아닌을 함유하고 있어 다양한 생리활성을 가지는 아로니아의 산업적 이용 증대 및 기능성식품 소재 개발을 목적으로 열수추출, 50% 에탄올 추출 및 50% 메탄올을 사용하여 추출물을 제조하였으며 추출용매에 따른 생리 활성을 조사하였다. 추출수율은 50% 에탄올, 열수 및 50% 메탄올 추출물 순으로 나타났으며, 총 당 함량은 35.56~37.68 g/100 g으로 유의적인 차이는 나타나지 않았다. 총 안토시아닌 함량은 50% 메탄올 추출물이 395.10 mg/100 g으로 가장 높은 함량을 나타내었으며, 50% 에탄올 및 열수추출물이 각각 318.61 mg/100 g과 252.82 mg/100 g이었다. 50% 메탄올 추출물의 안토시아닌 조성은 cyanidin-3-O-galactoside, cyanidin-3-O-arabinoside 및 cyanidin-3-O-glucoside순이었으며, 100 g당 각각 364.65 mg, 163.06 mg 및 35.69 mg으로 가장 높은 함량을 나타내었다. 총 페놀 함량은 50% 에탄올 및 50% 메탄올 추출물에서 각각 121.38 mg/g 및 122.43 mg/g으로 열수추출물 80.14 mg/g보다 유의적으로 높은 함량을 나타내었으며, 총 플라보노이드 함량은 총 페놀 함량과 유사한 경향을 나타내었다. ORAC은 열수 추출물, 50% 에탄올 및 50% 메탄올 추출물에서 각각 715.66 μM/g, 768.15 μM/g 및 780.77 μM/g로 나타나 50% 에탄올 및 50% 메탄올 추출조건의 항산화 활성이 높게 나타났다. DPPH radical 소거활성은 50% 에탄올 및 50% 메탄올 추출물이 100~1,000 μg/mL 농도에서 각각 7.96~70.01% 및 8.90~69.21%로 높은 활성을 나타내었으며, superoxide radical 소거활성은 모든 추출물에서 농도가 증가함에 따라 소거활성이 증가하였다. FRAP는 100~1,000 μg/mL 농도에서 50% 에탄올 추출물이 57.14~817.87 μM이었고 50% 메탄올 추출물이 67.32~812.78 μM로 나타나 높은 함량을 보여주었다. Tyrosinase 저해활성은 50% 에탄올 추출물이 100~1,000 μg/mL의 농도에서 23.03~33.82%로 가장 우수한 활성을 나타내었다. 인간 자궁경부암세포주인 HeLa에 암세포생육 저해활성을 분석한 결과 50% 에탄올 추출물이 100~1,000 μg/mL 농도에서 6.58~76.86%로 유의적으로 높은 저해활성을 나타내었다. 따라서, 50% 에탄올 추출방법이 아로니아의 생리 활성이 우수한 추출물 제조방법으로 적합하였으며 기능성 식품 소재 개발에 있어 산업적으로 적용 가능할 것으로 사료된다.
Abstract
The objective of this study was to investigate the physiological activities of Aronia melanocarpa extracts on extraction solvents (through hot water extraction, 50% ethanol extraction, and 50% methanol extraction). The yield of 50% ethanol extract, 84.50%, was higher than that of the hot water extract (84.05%) and of the 50% methanol extract (76.20%). The total sugar content of the extraction solvent, 35.56~37.68 g/100 g, did not significantly differ. The total anthocyanin content of the 50% methanol extract, 395.10 mg/100 g, was higher than of 50% ethanol extract (318.61 mg/100 g) and of the hot water extract (252.82 mg/100 g). The anthocyanin composition of the cyanidin-3-galactoside, 364.65 mg/100 g, was higher than that of the cyanidin-3-arabinoside (163.06 mg/100 g) and of the cyanidin-3-glucoside (35.69 mg/100 g) in the 50% methanol extract. The DPPH radical scavenging activities of the 50% ethanol and the 50% methanol extracts at 100-1,000 μg/mL were 7.96-70.01%, and 8.90-69.21%, respectively. The superoxide radical scavenging activities of all the extracts improved with an increase in the treatment concentration. The FRAP of the 50% ethanol extract and the 50% methanol extract at 100-1,000 μg/mL were 57.14-817.87 μM and 67.32-812.78 μM, respectively. The tyrosinase inhibitory activity of the 50% ethanol extract, 23.03-33.82% (100-1,000 μg/mL), was higher than that of the other extracts. The cancer cell growth inhibition activity of the 50% ethanol extract (76.86% at 1,000 μg/mL) on HeLa cell line was significantly higher than of the hot water and of the 50% methanol extracts. There results suggest that the 50% ethanol extract from Aronia melanocarpa may be a useful for functional food material in the food industry.
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