Table II.
Log Reduction of Biological Indicators Exposed to Peroxyacetic Acid or Hydrogen Peroxide Directly in Dispensing Vial
| Microorganism | Log reduction (n = 2) | |
|---|---|---|
| PAA in vial | H2O2 in vial | |
| G. stearothermophilus | 5.84 | 3.90 |
| B. atrophaeus | 7.18 | 4.24 |
| B. pumilus | 5.51 | 4.64 |
Five microliters of either 32 % PAA or 35 % H2O2 were placed directly into 1 mL of a solution of 60 mg/mL acetaminophen in ethanol and ~106 CFU of each biological indicator and subjected to lyophobic precipitation at 37 °C, 1,175 psi scCO2 with sonication for 55 min