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http://dx.doi.org/10.3746/jkfn.2008.37.3.357

Effects of Gamma Irradiation on Antioxidant Properties and Physical Characteristics of Sargassum siliquastrum Water Extract  

Kim, Ah-Ram (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
Song, Eu-Jin (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
Kim, Mi-Jung (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
Lee, So-Young (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
Kim, Koth-Bong-Woo-Ri (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
Kim, Jin-Hee (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
Kim, Seo-Jin (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
Hong, Yong-Ki (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Park, Jin-Gyu (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Kim, Jae-Hun (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Lee, Ju-Woon (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Byun, Myung-Woo (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Ahn, Dong-Hyun (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.37, no.3, 2008 , pp. 357-361 More about this Journal
Abstract
In this study, the antioxidant properties and physical characteristics of irradiated Sargassum siliquastrum water extract were evaluated. Samples were irradiated with $Co^{60}{\gamma}$-ray at doses ranging from 3 to 20 kGy. They were then analyzed to investigate antioxidant properties, including total phenolic compound content and DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity. In addition, physical properties such as viscosity and color were evaluated. The results demonstrated that total phenolic compound content and DPPH radical scavenging activity were significantly improved (p<0.05) by irradiation. In terms of physical properties, viscosity and color were reduced in the irradiated extracts as compared to non-irradiated samples. In conclusion, gamma irradiation improved the antioxidant properties of Sargassum siliquastrum water extract, improving its original weak point as a natural antioxidant when applied in the food industry.
Keywords
Sargassum siliquastrum water extract; antioxidant; gamma irradiation; physical characteristic;
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Times Cited By KSCI : 12  (Citation Analysis)
Times Cited By SCOPUS : 5
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