Abstract

ABSTRACTThis study was carried out to determine the combined sporicidal effects of relatively low concentrations of hydrogen peroxide and iodophor on the spores of Closfridium sporogenes. Such treatments may be useful in sterilizing bulk storage tanks. The spores were dried on epoxy coated penicylinders and were treated with 1, 3, 5 or 10% hydrogen peroxide for 1 or 2 hr at 15° or 50°C followed by a prolonged treatment with iodophor (25 ppm). The data indicate that at 15° C, treatment with 5% hydrogen peroxide alone would not produce sterility; however, when this treatment was followed by an iodophor soak for 24 hr, sterility was obtained.

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