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논문 기본 정보

자료유형
학술저널
저자정보
Yeon Soo Kim (Kyungpook National University) Damilare Adeyemi (Kyungpook National University) Ponijese Korovulavula (Kyungpook National University) Dong Wook Jang (Kyungpook National University) Mi-Kyung Park (Kyungpook National University)
저널정보
한국식품저장유통학회 Food Science and Preservation 한국식품저장유통학회지 제26권 제4호
발행연도
2019.7
수록면
449 - 454 (6page)
DOI
10.11002/kjfp.2019.26.4.449

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초록· 키워드

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We investigated the effects of steaming Fijian taro (Colocasia esculenta L. Schott) corms on their functional compound contents and antioxidant activities by comparison with those of un-steamed Fijian taro corms. Taro corms from Fiji were washed, peeled, cut, then either steamed or left un-steamed, and freeze-dried. Ten gram of each freeze-dried taro corm sample was extracted with water, methanol, and ethanol. The total phenolic content (TPC) and total flavonoid content (TFC) of the taro corms were determined using the Folin-Ciocalteu’s colorimetric and the aluminum chloride colorimetric methods, respectively. The antioxidant activity was determined using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, ferric reducing antioxidant power (FRAP), and 2,2’-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity. The water-extracted steamed Fijian taro corm showed the greatest extraction yield of 11.58±1.20%, whereas the ethanol-extracted un-steamed Fijian taro corm exhibited the lowest extraction yield of 4.24±0.77%. The TPC (42.77±3.39 mg gallic acid equivalents/g dry weight) and TFC (12.68±4.85 mg catechin equivalents/g dry weight) of the methanol-extracted steamed Fijian taro corms were significantly larger than those of the other extracts (p<0.05). The steamed Fijian taro corms extracted with methanol significantly demonstrated greatest activities in DPPH radical scavenging activity (34.82±2.91%), FRAP (339.08±20.50 mM Trolox equivalents), and ABTS radical scavenging activity (56.34±3.54%) (p<0.05). This study provides the basis for developing a healthy snack food based on steamed Fijian taro.

목차

Abstract
Introduction
Materials and methods
Results and discussion
Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2019-059-000954165