This research was conducted to evaluate antioxidant activity of fruit waste materials as source of natural antioxidants. The fruits were selected in commercial market in Republic of Korea. In this research, the antioxidant activity and total polyphenol and flavonoid contents of fruit peels, which include apple, banana, grape, kiwi, orange, pear, persimmon, and tangerine with different drying method (hot-air and freeze dry), were analyzed individually. The ethanol extract of fruit peels were analyzed to the scavenging activities of DPPH and ABTS radicals and reducing power. There was only a small difference between hot-air and freeze dry with respect to their antioxidant activities. Grape and banana showed the highest radical scavenging activities and reducing power, with the lowest in pear peel. The grape peel of freeze dry showed the highest DPPH radical scavenging ability (48.39% inhibition). Total polyphenol contents of the grape peel (9.34mg of gallic acid equivalent/g of dry peel) were higher than those of the apple peel (7 .52mg of gallic acid equivalent/g of dry peel). And flavonoids were mainly derived from grape peel (15.45mg quercetin equivalents/g dry peel). The results suggest that fruit peel can be used as natural antioxidants ingredients.
목차
ABSTRACT INTRODUCTION MATERILAS AND METHODS Materials Antioxidant activity Total polyphenol and flavonoids contents RESULTS AND DISCUSSION Antioxidant activity Total polyphenol and flavonoids contents CONCLUSIONS REFERENCES
국제과학영재학회 [The Society for the International Gifted in Science]
설립연도
2006
분야
자연과학>자연과학일반
소개
과학영재를 위한 연구 활동을 통하여 과학영재를 발굴하고, 발굴된 과학영재가 과학 분야의 관련 연구 활동을 할 수 있도록 지원하여, 이들이 과학 관련 분야의 진로를 선택하도록 장려함으로써 국제경쟁력을 갖춘 우수 과학기술인을 배출하고 국가 경제발전 및 문화창달과 세계 과학 발전에 기여함을 목적으로 한다.
간행물
간행물명
APEC Youth Scientist Journal [APEC 청소년 과학학술지]
간기
반년간
pISSN
2005-5625
수록기간
2009~2022
십진분류
KDC 405DDC 505
이 권호 내 다른 논문 / APEC Youth Scientist Journal Vol. 8 No.1