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Improvements in Storage Stability of Undaria pinnatifida after Gamma Irradiation  

Kim, Hyun-Joo (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Choi, Jong-Il (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Kim, Jae-Hun (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Chun, Byung-Soo (Department of Food Science and Biotechnology, Pukyong National University)
Ahn, Dong-Hyun (Department of Food Science and Biotechnology, Pukyong National University)
Kim, Gwang-Hoon (Department of Biology, Kongju National University)
Byun, Myung-Woo (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Lee, Ju-Woon (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Publication Information
Food Science and Preservation / v.16, no.4, 2009 , pp. 590-593 More about this Journal
Abstract
The effect of gamma irradiation on the storage stability of Undaria pinnatifida was investigated. A three-log reduction in total aerobic bacteria in U. pinnatifida samples was obtained by irradiation with 3 kGy. During storage for 2 weeks, the viable counts of microorganisms in non-irradiated U. pinnatifida increased to 6 log CFU/g. However, irradiation of U. pinnatifida by 5 kGy eliminated microorganisms. The Hunter $L^{\ast}-value$ of U. pinnatifida was slightly increased after 5 kGy of irradiation. The hardness properties of U. pinnatifida decreased during storage, but were not changed by irradiation with up to 3 kGy. These results indicate that low-dose irradiation (3 kGy) could be effective for improvement of the storage stability of U. pinnatifida.
Keywords
Undaria pinnatifida; storage stability; gamma irradiation;
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Times Cited By KSCI : 3  (Citation Analysis)
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