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논문 기본 정보

자료유형
학술저널
저자정보
Lee, Hyun-Jung (Department of Animal Science and Biotechnology, Chungnam National University) Song, Hyun-Pa (Department of Radiation Biotechnology, Advanced Radiation Technology Institute) Jung, Hee-Soo (Agency for Defense Development) Choe, Won-Ho (Department of Physics, Korea Advanced Institute of Science and Technology) Ham, Jun-Sang (Quality Control and Utilization Division, National Institute of Animal Science, RDA) Lee, Jun-Heon (Department of Animal Science and Biotechnology, Chungnam National University) Jo, Cheo-Run (Department of Animal Science and Biotechnology, Chungnam National University)
저널정보
한국축산식품학회 한국축산식품학회지 한국축산식품학회지 제32권 제5호
발행연도
2012.1
수록면
561 - 570 (10page)

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The objective of this study was to evaluate the effects of an atmospheric pressure plasma (APP) jet on L. monocytogenes inactivation, quality characteristics, and genotoxicological safety of cooked egg white and yolk. APP treatment using He gas resulted in a 5 decimal reduction in the number of L. monocytogenes in cooked egg white, whereas that using $He+O_2$, $N_2$, and $N_2+O_2$ decreased the number further, and to undetectable levels. All treatments of cooked egg yolk resulted in undetectable levels of inoculated L. monocytogenes. There were no viable cells of total aerobic bacteria after APP treatment on day 0 while the control showed approximately 3-4 Log CFU/g. On day 7, the numbers of total aerobic bacteria had increased by approximately 3 log cycles in cooked egg white, but there were no viable cells in cooked egg yolk after 2 min of APP jet. APP treatment decreased the $L^*$-values of cooked egg white and yolk significantly on day 0. No significant sensory differences were found among the cooked egg white samples, whereas significant reductions in flavor, taste, and overall acceptability were found in cooked egg yolks treated with APP jets. SOS chromotest did not reveal the presence of genotoxic products following APP treatments of cooked egg white and yolk. Therefore, it can be concluded that APP jets can be used as a non-thermal means to enhance the safety and extend the shelf-life of cooked egg white and yolk.

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