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. 2005 Sep;71(9):5587-9.
doi: 10.1128/AEM.71.9.5587-5589.2005.

Inactivation of spores of Bacillus anthracis Sterne, Bacillus cereus, and Bacillus thuringiensis subsp. israelensis by chlorination

E W Rice  1 , N J Adcock, M Sivaganesan, L J Rose
Affiliations

Inactivation of spores of Bacillus anthracis Sterne, Bacillus cereus, and Bacillus thuringiensis subsp. israelensis by chlorination

E W Rice et al. Appl Environ Microbiol. 2005 Sep.

Abstract

Three species of Bacillus were evaluated as potential surrogates for Bacillus anthracis for determining the sporicidal activity of chlorination as commonly used in drinking water treatment. Spores of Bacillus thuringiensis subsp. israelensis were found to be an appropriate surrogate for spores of B. anthracis for use in chlorine inactivation studies.

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Figures

FIG. 1.
FIG. 1.
Inactivation of Bacillus species spores exposed to 2.0 mg/liter free chlorine under different conditions. (A) pH 7, 5°C; (B) pH 7, 23°C; (C) pH 8, 5°C; (D) pH 8, 23°C. Symbols: •, B. anthracis Sterne; ▿, B. cereus; ▪, B. thuringiensis subsp. israelensis.
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References

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