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Metrics (View:37)- Low-Pressure Discharge Plasma Inactivation of Salmonella Typhymurium and Sanitation of Egg
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감압방전플라즈마를 이용한 Salmonella Typhimurium 살균과 계란의 위생성 향상
Received: May 29, 2013; Revised: Aug 05, 2013; Accepted: Aug 05, 2013
Published Online: Aug 31, 2013
Abatract
Low-pressure discharge plasmas (LPDP) using different gases were compared for their microbial inactivation effects against Salmonella Typhimurium, and their potentialities as a non-thermal sanitation technology of eggs were evaluated. The inactivation was highest in air LPDP followed by oxygen and nitrogen. The reductions in S. Typhimurium by air LPDP were 4 and 6 log by 2 and 5 min treatments, respectively. The inactivation effect against S. Typhimurium was somewhat retarded on the egg shell surface compared to glass surface showing 3 log reductions by 5 min treatment. The increase in surface temperature of egg shell was less than 10°C and no denaturation in both egg white and yolk was induced by the LPDP treatment. The results supported the possibility of the technology for the non-thermal egg sanitation.