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

Mi Hee Lee; Dong Wook Han; Yeon I. Woo; Masakazu Uzawa; Jong Chul Park

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

Mi Hee Lee, Dong Wook Han, Yeon I. Woo, Masakazu Uzawa, Jong Chul Park

Department of Medical Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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 1 × 10⁷ 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.

Original language	English
Pages (from-to)	1274-1277
Number of pages	4
Journal	Journal of microbiology and biotechnology
Volume	18
Issue number	7
Publication status	Published - 2008 Jul 28

All Science Journal Classification (ASJC) codes

Biotechnology
Applied Microbiology and Biotechnology

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title = "Inactivation of Listeria monocytogenes in brine and saline by alternating high-voltage pulsed current",

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 1 × 107 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.",

author = "Lee, {Mi Hee} and Han, {Dong Wook} and Woo, {Yeon I.} and Masakazu Uzawa and Park, {Jong Chul}",

year = "2008",

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T1 - Inactivation of Listeria monocytogenes in brine and saline by alternating high-voltage pulsed current

AU - Lee, Mi Hee

AU - Han, Dong Wook

AU - Woo, Yeon I.

AU - Uzawa, Masakazu

AU - Park, Jong Chul

PY - 2008/7/28

Y1 - 2008/7/28

N2 - 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 1 × 107 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.

AB - 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 1 × 107 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.

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ER -

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

Abstract

All Science Journal Classification (ASJC) codes

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