전자선 조사가 포장방법에 따른 건미역(Undaria pinnatifida)의 미생물학적 안전성 및 품질변화에 미치는 영향
Effect of Packaging and Electron Beam Irradiation on the Microbial Safety and Quality of Dried Undaria pinnatifida
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This study determined the effect of packaging and electron beam irradiation on the quality of dried Undaria pinnatifida. Samples were air or vacuum packaged and irradiated at 7 kGy. The dried Undaria pinnatifida had total viablecells and coliform counts of 5.51 and 4.40 log CFU/g in total, respectively, and counts of 5.56 and 4.19 log CFU/gin surface. These counts were reduced by 2-4 log cycles after irradiation. Irradiation increased the lightness and yellownessof the dried Undaria pinnatifida, but not the redness. In the sensory evaluation, there were no significantdifferences among samples. Therefore, electron beam irradiation improves the microbial safety and quality of driedUndaria pinnatifida.
Abstract
This study determined the effect of packaging and electron beam irradiation on the quality of dried Undaria pinnatifida. Samples were air or vacuum packaged and irradiated at 7 kGy. The dried Undaria pinnatifida had total viablecells and coliform counts of 5.51 and 4.40 log CFU/g in total, respectively, and counts of 5.56 and 4.19 log CFU/gin surface. These counts were reduced by 2-4 log cycles after irradiation. Irradiation increased the lightness and yellownessof the dried Undaria pinnatifida, but not the redness. In the sensory evaluation, there were no significantdifferences among samples. Therefore, electron beam irradiation improves the microbial safety and quality of driedUndaria pinnatifida.
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