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학술저널
저자정보
Towantakavanit Korsak (목포대학교) Yong Seo Park (목포대학교)
저널정보
한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.51 No.2
발행연도
2010.4
수록면
89 - 94 (6page)

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‘Hayward’ kiwifruits (Actinidia deliciosa) were treated with 100 ppm ethylene at 20℃ for 24 h and then immediately ripened at 20℃ for 10 days. Flesh firmness significantly decreased at initial time in fruits treated with ethylene, while sensory value increased with the progress of ripening. The ethylene evolution and respiration abruptly increased 2 days after the treatment and their magnitudes were much higher in the ethylene-treated fruits than in control. Ethylene production increased simultaneously with increasing 1-aminocyclopropane-1-carboxylic acid (ACC) content, and ACC synthase (ACS) and ACC oxidase (ACO) activities in the ethylene-treated fruits. Contents of total polyphenols and flavonoids considerably increased at the end stage of ripening in the ethylene-treated fruits. Antioxidant activities of methanol extract with 1,1-diphenyl-2-picrylhydrazyl, β-carotene, and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) methods were much higher from the ethylene-treated fruits than those from control. There was a significant correlation between total polyphenols and antioxidant activity of the ethylene-treated fruits. In the ethylene-treated fruits, fruit softening was fastened and fruit quality was improved by increasing total polyphenols, total flavonoids, and antioxidant activity.

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Abstract
Introduction
Materials and Methods
Results and Discussion
Literature Cited

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