Table I.
Log Reduction of Biological Indicators Exposed to Peroxyacetic Acid or Hydrogen Peroxide in Lyophobic Precipitation Chamber
| Microorganism | Log reduction (n = 2) | |
|---|---|---|
| PAA | H2O2 | |
| G. stearothermophilus | 1.56 | −0.48 |
| B. atrophaeus | 0.73 | 0.17 |
| B. pumilus | 1.62 | 0.38 |
Vials containing 32 % PAA or 35 % H2O2 were placed in the same chamber as vials containing a solution of 60 mg/mL acetaminophen in ethanol and ~106 CFU of each biological indicator and were subjected to lyophobic precipitation at 37 °C, 1,175 psi scCO2 with sonication for 55 min