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Inactivation of Listeria monocytogenes in brine and saline by alternating high-voltage pulsed current

Authors
 Lee, Mi Hee  ;  Dong-Wook Han  ;  Yeon I. Woo  ;  Masakazu Uzawa  ;  Jong-Chul Park 
Citation
 JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY, Vol.18(7) : 1274-1277, 2008 
Journal Title
 JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY 
ISSN
 1017-7825 
Issue Date
2008
MeSH
Electricity ; Food Microbiology* ; Food Preservation/methods* ; Listeria monocytogenes/drug effects ; Listeria monocytogenes/growth & development* ; Microbial Viability*/drug effects ; Sodium Chloride/pharmacology*
Keywords
Listeria monocytogenes ; alternating high-voltage pulsed current ; brine ; saline ; inactivation
Abstract
The inactivating efficiency of alternating high-voltage pulsed (AHVP) current was investigated in brine (20 w/v% NaCl) and saline (0.9 w/v% NaCl) inoculated with 1x 10(7) cells/ml of Listeria monocytogenes. AHVP current at 12 V with 1 pulse completely inactivated L. monocytogenes in brine within 3 ms, while the bacteria in saline were fully inactivated by 10-pulsed electric treatment at 12 V within the same time. Electron microscopic observation demonstrated substantial structural damage of electrically treated L. monocytogenes in brine. These results suggest that AHVP treatment would be effective for the rapid and complete inactivation of L. monocytogenes in brine or saline solution.
Files in This Item:
T200800832.pdf Download
DOI
18667856
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Park, Jong Chul(박종철) ORCID logo https://orcid.org/0000-0003-0083-5991
Woo, Yeon I.(우연이)
Lee, Mi Hee(이미희) ORCID logo https://orcid.org/0000-0002-9630-7044
Han, Dong Wook(한동욱)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/107105
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