Abstract
Solutions with a pH of 3 or lower had a bactericidal effect within 60 s againstPseudomonas aeruginosa and other Gram-negative eubacteria in an assay based on the A.O.A.C. germicidal and detergent sanitizer assay. This effect was not observed on the Gram-positive eubacteria and yeasts examined. Acidification of disinfectants to improve their activity against Gram-negative eubacteria is a common practice. It is shown here that low pH itself can have a rapid bactericidal activity.
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