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 Microbioljournal_title
Letters in applied microbiologyauthors
Rogers JV,Ducatte GR,Choi YW,Early PCdoi
10.1111/j.1472-765X.2006.02002.xsubject
Has Abstractpub_date
2006-11-01 00:00:00pages
482-8issue
5eissn
0266-8254issn
1472-765Xpii
LAM2002journal_volume
43pub_type
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