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AMB Express

Table 1 Viability assay of stabilized chlorine dioxide solution against spores of B. subtilis ATCC 6051 and B. pumilus SAFR-032

From: Sterilization of hydrogen peroxide resistant bacterial spores with stabilized chlorine dioxide

 

Colony forming units

ClO 2 concentration (μg/mL)

Exposure time

B. subtilis ATCC 6051

B. pumilus SAFR-032

0

N/A

4.59 ± 1.71 × 104

1.30 ± 0.32 × 105

47

10 m

4.70 ± 3.11 × 103

2.40 ± 0.10 × 104

47

60 m

3.50 ± 2.12 × 102

1.10 ± 0.14 × 103

47

24 h

n.d.

n.d.

187

10 m

n.d.

n.d.

187

60 m

n.d.

n.d.

187

24 h

n.d.

n.d.

  1. Notes: Viability assay of B. subtilis ATCC 6051 and B. pumilus SAFR-032 dried spores on glass cover slips after exposure to stabilized chlorine dioxide solution at 47 or 187 μg/mL concentration and 10 min, 60 min, or 24 h exposure. n.d. = no colonies detected and thus CFU could not be determined.
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