TY - JOUR
T1 - Inactivation of Escherichia coli by microwave induced low temperature argon plasma treatments
AU - Purevdorj, Dambadarjaa
AU - Igura, Noriyuki
AU - Hayakawa, Isao
AU - Ariyada, Osamu
N1 - Funding Information:
The authors wish to express their sincere appreciation to ARIOS, Japan for constructing the plasma technique. One of the authors (D.P.) expresses his gratitude to the Ministry of Education, Culture, Sports, Science and Technology for its scholarship to pursue this study.
PY - 2002/8
Y1 - 2002/8
N2 - In this study, the design and plasma generation principle of a microwave induced plasma sterilization technique is described. Generation of low temperature argon plasma was investigated for different microwave power densities. Inactivation effects of the plasma were studied on bio-indicators carrying Escherichia coli as a function of microwave power density and particularly for different locations of the bio-indicator holder. The results showed that argon plasma having a temperature below 60°C are generated having less than 4.21 w/cm3 of microwave power density at an ambient temperature of 34°C. Survival of E.coli was significantly reduced when the microwave power density of the plasma treatments increased. While, high inactivation was observed at the center, it was less effective at the two opposite edges of the bio-indicator holder.
AB - In this study, the design and plasma generation principle of a microwave induced plasma sterilization technique is described. Generation of low temperature argon plasma was investigated for different microwave power densities. Inactivation effects of the plasma were studied on bio-indicators carrying Escherichia coli as a function of microwave power density and particularly for different locations of the bio-indicator holder. The results showed that argon plasma having a temperature below 60°C are generated having less than 4.21 w/cm3 of microwave power density at an ambient temperature of 34°C. Survival of E.coli was significantly reduced when the microwave power density of the plasma treatments increased. While, high inactivation was observed at the center, it was less effective at the two opposite edges of the bio-indicator holder.
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U2 - 10.1016/S0260-8774(01)00174-1
DO - 10.1016/S0260-8774(01)00174-1
M3 - Article
AN - SCOPUS:0036680756
SN - 0260-8774
VL - 53
SP - 341
EP - 346
JO - Journal of Food Engineering
JF - Journal of Food Engineering
IS - 4
ER -