A preliminary assessment of Bacillus anthracis spore inactivation using an electrochemically activated solution (ECASOL).

Abstract:

AIM:To evaluate the efficacy of electrochemically activated solution (ECASOL) in decontaminating Bacillus anthracis Ames and Vollum 1B spores, with and without changing the source water hardness and final ECASOL pH. METHODS AND RESULTS:Five different ECASOL formulations were generated, in which the source water hardness and final ECASOL pH were varied, resulting in cases where significant changes in free available chlorine (FAC) and oxidative-reduction potential (ORP) were observed. B. anthracis Ames and Vollum 1B spores were suspended in the various ECASOL formulations for 30 min, and decontamination efficacy was determined; calcium hypochlorite [5% high-test hypochlorite (HTH)] was used as a positive control. The five different ECASOL formulations yielded mean FAC levels ranging from 305 to 464 ppm, and mean ORP levels ranging from +826 to +1000 mV. Exposure to all the ECASOL formulations and 5% HTH resulted in >or=7.0 log reductions in both B. anthracis Ames and Vollum 1B spores. CONCLUSIONS:The present testing demonstrated that ECASOL with a minimum of c. 300-ppm FAC levels and +800-mV ORP inactivated the B. anthracis spores in suspension, similar to 5% HTH. SIGNIFICANCE AND IMPACT OF THE STUDY:These results provide information for decontaminating B. anthracis Ames and Vollum 1B spores in suspension using ECASOL.

journal_name

Lett Appl Microbiol

authors

Rogers JV,Ducatte GR,Choi YW,Early PC

doi

10.1111/j.1472-765X.2006.02002.x

subject

Has Abstract

pub_date

2006-11-01 00:00:00

pages

482-8

issue

5

eissn

0266-8254

issn

1472-765X

pii

LAM2002

journal_volume

43

pub_type

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