수확후 자외선 조사가 딸기의 생물활성에 미치는 영향

홍지영¹, 이상국¹, 조용진²^,^*, 김철진², 김남수², 김종태², 맹진수²

Effect of Post-harvest Ultraviolet Irradiation on Biological Activities in Strawberries

Ji-Young Hong¹, Sang Kook Lee¹, Yong-Jin Cho²^,^*, Chul-Jin Kim², Namsoo Kim², Chong-Tai Kim², Jin-Soo Maeng²

¹서울대학교 약학대학

²한국식품연구원

¹College of Pharmacy, Seoul National University

²Korea Food Research Institute

^*Corresponding author: Yong-Jin Cho, Korea Food Research Institute, Seongnam 463-746, Korea. Tel: +82-31-780-9136; Fax: +82-31-780-9257, E-mail: yjcho@kfri.re.kr

ⓒ Copyright 2012 Korean Society for Food Engineering. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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.

Keywords: ultraviolet; irradiation; biological activity; strawberry