STP912: Inactivation of Microorganisms on Polyethylene Exposed to Hydrogen Peroxide Vapors in Air at Various Temperatures

    Wang, J
    Research assistant and professor of food science, University of Georgia, Athens, GA

    Toledo, RT
    Research assistant and professor of food science, University of Georgia, Athens, GA

    Pages: 12    Published: Jan 1986


    Abstract

    Air saturated with hydrogen peroxide vapor in equilibrium with 35% (weight/weight) aqueous hydrogen peroxide solution possesses sporicidal properties suitable for use as a sterilant in aseptic packaging systems. At 70°C, a six-decimal reduction in population of Bacillus subtilis A and Bacillus subtilis var. globigii can be achieved after 0.95 and 1.2 min of exposure, respectively. Hydrogen peroxide vapor is adsorbed by the polyethylene surface. The adsorbed quantity that persists following 99.9999% inactivation of B. subtilis var. globigii decreased with increasing temperature. Without further treatment, residues will exceed the legal tolerance.

    Keywords:

    sterilization, sporicide, hydrogen peroxide vapor, hydrogen peroxide residues, flexible packaging


    Paper ID: STP18325S

    Committee/Subcommittee: F02.30

    DOI: 10.1520/STP18325S


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