Biomaterial Database

Sensitivity of Listeria monocytogenes to irradiation. 1990

V Tarján

Central Food Research Institute, Budapest, Hungary.

Irradiation of Listeria monocytogenes was carried out in culture media and pork meat paste at room temperature with 60Co radiation source of 6.6 kGy.h-1 dose rate. The employed doses were 0, 0.5, 1, 2, 3, 4 and 6 kGy. Because of the expected great number of injured cells, parallel to the direct counting at selective media, liquid as well as solid resuscitation methods were used. One strain of out 3 survived as high as 4 kGy irradiation. Radiation with 2 kGy resulted 7 log cycles reduction of cell count. After lower irradiation doses the L. monocytogenes count decreased in proportion to increasing doses. It has been concluded that L. monocytogenes, compared with Gram-negative pathogens, are less sensitive to irradiation.

UI	MeSH Term	Description	Entries
D008089	Listeria monocytogenes	A species of gram-positive, rod-shaped bacteria widely distributed in nature. It has been isolated from sewage, soil, silage, and from feces of healthy animals and man. Infection with this bacterium leads to encephalitis, meningitis, endocarditis, and abortion.
D004307	Dose-Response Relationship, Radiation	The relationship between the dose of administered radiation and the response of the organism or tissue to the radiation.	Dose Response Relationship, Radiation,Dose-Response Relationships, Radiation,Radiation Dose-Response Relationship,Radiation Dose-Response Relationships,Relationship, Radiation Dose-Response,Relationships, Radiation Dose-Response
D004755	Enterobacteriaceae	A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock.	Coliform Bacilli,Enterobacteria,Ewingella,Leclercia,Paracolobactrum,Sodalis
D005516	Food Microbiology	The presence of bacteria, viruses, and fungi in food and food products. This term is not restricted to pathogenic organisms: the presence of various non-pathogenic bacteria and fungi in cheeses and wines, for example, is included in this concept.	Microbiology, Food
D005720	Gamma Rays	Penetrating, high-energy electromagnetic radiation emitted from atomic nuclei during NUCLEAR DECAY. The range of wavelengths of emitted radiation is between 0.1 - 100 pm which overlaps the shorter, more energetic hard X-RAYS wavelengths. The distinction between gamma rays and X-rays is based on their radiation source.	Gamma Wave,Gamma Radiation,Nuclear X-Rays,Radiation, Gamma,X-Rays, Nuclear,Gamma Radiations,Gamma Ray,Gamma Waves,Nuclear X Rays,Nuclear X-Ray,Ray, Gamma,Wave, Gamma,Waves, Gamma,X Rays, Nuclear,X-Ray, Nuclear
D012680	Sensitivity and Specificity	Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)	Specificity,Sensitivity,Specificity and Sensitivity

Related Publications

V Tarján

Sensitivity of Listeria monocytogenes to Selected Spices.

October 1993, Journal of food protection,

V Tarján

[Sensitivity of Listeria monocytogenes strains to antibiotics].

August 1968, Orvosi hetilap,

V Tarján

Gamma Radiation Sensitivity of Listeria monocytogenes.

September 1989, Journal of food protection,

V Tarján

Sensitivity of Six Strains of Listeria monocytogenes to Nisin.

July 1997, Journal of food protection,

V Tarján

Low sensitivity of Listeria monocytogenes to quaternary ammonium compounds.

November 2000, Applied and environmental microbiology,

V Tarján

[In vitro sensitivity of Listeria monocytogenes to sulfonamides and antibiotics].

January 1954, Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. 1. Abt. Medizinisch-hygienische Bakteriologie, Virusforschung und Parasitologie. Originale,

V Tarján

Listeria monocytogenes sensitivity to antimicrobial treatments depends on cell origin.

October 2021, Scientific reports,

V Tarján

Irradiation temperature influences product quality factors of frozen vegetables and radiation sensitivity of inoculated Listeria monocytogenes.

September 2002, Journal of food protection,

V Tarján

Sensitivity of Listeria monocytogenes in vitro to different antibiotics and chemotherapeutics.

March 1961, Acta paediatrica,

V Tarján

Sensitivity of Listeria monocytogenes to Sanitizers after Exposure to a Chemical Shock.

April 1996, Journal of food protection,