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Metrics (View:82)- Effect of Post-harvest Ultraviolet Irradiation on Biological Activities in Strawberries
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수확후 자외선 조사가 딸기의 생물활성에 미치는 영향
Received: Feb 02, 2012; Revised: Feb 20, 2012; Accepted: Feb 21, 2012
Published Online: Feb 28, 2012
Abatract
Strawberries have various fruit phenolics which provide biological activities such as antioxidant, anti-inflammatory, and anti-proliferative potential against various cancer cells. Previous studies showed that such phenolics might be enriched by ultraviolet irradiation (UV) after harvesting fruits and vegetables. In the present study, we investigated the effect of post-harvest ultraviolet irradiation on the biological activities of strawberries. When 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity, induction of quinone reductase activity, inhibitory effect on the proliferation of various human cancer cells, and inhibitory effect on the expression of inducible nitric oxide synthase (iNOS) of UV-irradiated strawberries using Maehyang, Akihime, and Red pearl, were evaluated, the biological activities were, in general, enhanced by ultraviolet irradiation after harvest.