Resumo

ECHEVERRI PRIETO, Lena Carolina et al. Disinfection kinetics of five disifectants used in pharmaceutical industry. Rev Cubana Farm [online]. 2007, vol.41, n.2, pp. 0-0. ISSN 1561-2988.

To assess disinfectant activity from each chemical agent, a quantitative methodology was implemented by means of its neutralization with Dey-Engley medium, and thus to achieve recovery of viable cells after each assay and to estimate disinfection kynetics, which is expressed as lethal coefficient (k). It was observed that this value was proportionally inverse to contact time for treatments with B. subtilis versus all the disinfectants, and for A. niger with 70 % ethyl alcohol, ionic quaternary ammonium, and the sodium hypochlorite.

Palavras-chave : Disinfection kynetics; glutaraldehyde; sodium htpochlorite; quaternary ammonium; ethyl alcohol.