복분자 에탄올 추출물 및 분획물의 항산화 효과

• 영문명: Antioxidant Capacity of Ethanol Extracts and Fractions from Rubus coreanus Miq.
• 발행기관: (사)한국식물생명공학회
• 저자명: 강현(Hyun Kang) 이성규(Sung-Gyu Lee)
• 간행물 정보: 『Journal of Plant Biotechnology』48권 4호, 264~270쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2021.12.31

영문 초록

In the present study, the total polyphenol and flavonoid contents, radical scavenging ability, and reducing power of ethanol extracts and fractions from Rubus coreanus Miq. were assessed in order to determine the antioxidant activity. The total polyphenol contents in the 70% ethanol extract and ethyl acetate fraction were 238.46 mg gallic acid equivalents (GAE)/g and 413.59 mg GAE/g, respectively; these values were higher than those in the other fractions (p < 0.05). In addition, the total flavonoid content was as high as 52.83 mg quercetin equivalents (QE)/g in the ethyl acetate fraction (p < 0.05). With regard to DPPH and ABTS radical scavenging activities, the RC50 values of the ethyl acetate fraction were 3.95 and 6.25 µg/mL, respectively, indicating that the scavenging activity was similar to that of ascorbic acid (control) (p < 0.05). Moreover, in the FRAP assay performed to assess the reducing power, the ethyl acetate fraction showed high activity (p < 0.05). In summary, the present findings confirmed that the ethyl acetate fraction of the R. coreanus Miq. 70% ethanol extract had high poly- phenol and flavonoid contents and excellent antioxidant properties. Therefore, it was confirmed that the ethyl acetate fraction of the mugwort 70% ethanol extract had high polyphenol and flavonoid content and excellent antioxidant effect.

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키워드

Rubus coreanus Miq. ethyl acetate fraction FRAP polyphenol antioxidant