INACTIVATION OF THE RADIATION-RESISTANT SPOILAGE BACTERIUM MICROCOCCUS RADIODURANS. II. RADIATION INACTIVATION RATES AS INFLUENCED BY MENSTRUUM TEMPERATURE, PRE-IRRADIATION HEAT TREATMENT, ANDCERTAIN REDUCING AGENTS

Journal Article · Sun Sep 01 00:00:00 EDT 1963 · Applied Microbiology (U.S.) Changed to Appl. Environ. Microbiol.ed as Arch. Pathol. (March 1928-September 1950 and July 1960-December 1975) and as AMA

OSTI ID:4128637

Duggan, D E; Anderson, A W; Elliker, P R

The R/sub 1/ strain of Micrococcus radiodurans, previously determined to be more resistant than three other strains exposed to gamma radiation, was studied to determine the influence of certain environmental factors on resistance to radiation inactivation. The frozen state offered insignificant protection to the organisins irradiated in raw pureed beef. Resistance was reduced by higher menstruum temperatures (40 and 50 deg C) during irradiation. Pre-irradiation heat treatment was found to lower resistance to subsequent irradiation. When the cells were irradiated in buffer at pH 5, 7, or 9, no differences in resistance were noted. Cell suspensions in buffer were protected to some extent by cysteine but not by thioglycolate. Ascorbate enhanced radiation inactivation. (auth)

• Research Organization: Oregon State Univ., Corvallis
• NSA Number: NSA-18-003514
• OSTI ID: 4128637
• Journal Information: Applied Microbiology (U.S.) Changed to Appl. Environ. Microbiol.ed as Arch. Pathol. (March 1928-September 1950 and July 1960-December 1975) and as AMA, Vol. Vol: 11; Other Information: Orig. Receipt Date: 31-DEC-64
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BIOLOGY AND MEDICINE
ACIDITY
BACTERIA
CYSTEINE
ENVIRONMENT
FOOD
GAMMA RADIATION
HEATING
LOW TEMPERATURE
MEAT
MICROCOCCUS RADIODURANS
ORGANIC SULFUR COMPOUNDS
PRESERVATION
RADIATION PROTECTION
RADIOSENSITIVITY
TEMPERATURE
VITAMIN C
VITAMINS