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Titolo:
Influence of catalase and superoxide dismutase on ozone inactivation of Listeria monocytogenes
Autore:
Fisher, CW; Lee, D; Dodge, BA; Hamman, KM; Robbins, JB; Martin, SE;
Indirizzi:
Univ Illinois, Dept Food Sci & Human Nutr, Anim Sci Lab 486, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 Anim Sci Lab 486, Urbana, IL 61801 USA
Titolo Testata:
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
fascicolo: 4, volume: 66, anno: 2000,
pagine: 1405 - 1409
SICI:
0099-2240(200004)66:4<1405:IOCASD>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
ESCHERICHIA-COLI K-12; HYDROGEN-PEROXIDE; WATER; MECHANISMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Martin, SE Univ Illinois, Dept Food Sci & Human Nutr, Anim Sci Lab 486, 1207 W Gregory Dr, Urbana, IL 61801 USA Univ Illinois 1207 W Gregory Dr Urbana IL USA 61801 L 61801 USA
Citazione:
C.W. Fisher et al., "Influence of catalase and superoxide dismutase on ozone inactivation of Listeria monocytogenes", APPL ENVIR, 66(4), 2000, pp. 1405-1409

Abstract

The effects of ozone at 0,25, 0.40, and 1.00 ppm on Listeria monocytogeneswere evaluated in distilled water and phosphate-buffered saline. Differences in sensitivity to ozone were found to exist among the six strains examined. Greater cell death was found following exposure at lower temperatures. Early stationary-phase cells were less sensitive to ozone than mid-exponential- and late stationary-phase cells. Ozonation at 1.00 ppm of cabbage inoculated with L. monocytogenes effectively inactivated all cells after 5 min. The abilities of in vitro catalase and superoxide dismutase to protect thecells from ozone were also examined. Three listerial test strains were inactivated rapidly upon exposure to ozone. Both catalase and superoxide dismutase,were found to protect listerial cells from ozone attack, with superoxide dismutase being more important than catalase in this protection.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 09:12:09