Antimicrobial effects of bleaching agents Part 2 - Studies on bacteria, yeast, mould and phage

Low-temperature domestic washing (i.e. < 40 degreesC) may be regarded as no n-hygienic because of lack of thermal inactivation of microorganisms. Other means (i.e. bleaching agents) must therefore be considered to compensate f or the low temperature and achieve hygienic effects. In this study, the bio cidal activity of common bleaching systems (TAED, NOBS, PAP) was examined u sing the standard suspension test with selected microorganisms (bacteria, y east, mould, phage) to determine the bactericidal, fungicidal and virucidal properties of the bleaching systems in question. The results showed that t he biocidal effect of the bleaching systems in question is influenced by th e following parameters: presence of activator, PH, concentration, perborate to activator ratio, temperature and presence of soil. it was demonstrated that bleaching agents are able to improve the hygienic status of low-temper ature textile washing.