Halophilic Bacteria Susceptibility to Peracetic Acid Vapor and Ethylene Oxide

Halophilic bacteria susceptibility to peracetic acid vapor and ethylene oxide.

Extremely to slightly halophilic bacteria were tested for susceptibility to two sterilizing agents, peracetic acid (PAA) and ethylene oxide (ETO). PAA susceptibility was explored by two methods: an agar plate (constant pH of 7.2) and a filter strip (constant incubation period of 37 days); 100% susceptibility was obtained by both methods. The dosage (0.5 ml/min) was applied to a filter pad in a ...

Sporicidal effect of peracetic acid vapor.

The sporicidal activity of peracetic acid (PAA) vapor at 20, 40, 60, and 80% relative humidity (RH) and 25 C was determined on Bacillus subtilis var. niger spores on paper and glass surfaces. Appreciable activity occurred within 10 min of exposure to 1 mg of PAA per liter and 40% or higher RH. The sporicidal rate decreased from the optimum at 80% RH to a slight effect at 20% RH. Spores on an im...

Osmoregulation in Halophilic Bacteria

Thiodiacetic acid--a metabolite of Ethylene oxide.

Urine samples of premature babies contain high amounts of thiodiacetic acid (TDA). Since these pre-term infants are exposed to an increased oxygen atmosphere in the incubator, we supposed that these high levels of thiodiacetic acid might be produced from ethylene, generated in the course of lipid peroxidation processes. Considering that conversion of ethylene to ethylene oxide (EO) is well know...

Vaporized Peracetic Acid (vpa) Sterilization

M in ne ap ol is , M N 5 54 47 VAPORIZED PERACETIC ACID (VPA) STERILIZATION Peracetic Acid as a Biocide REVOXTM sterilization technology uses a room temperature vapor composed of three active compounds; hydrogen peroxide (H2O2), acetic acid and peracetic acid (PAA). PAA is formed by the reaction of acetic acid and H2O2 with the addition of a catalyst; these compounds exist in equilibrium and th...