Advantage of pH neutral peracetic acid over peracetic acid in reduction of viable count of biofilms

Erscheingsdatum 
Dezember 2019
Autoren 
B. Meyer, S. Eschborn, M. Schmidt, H. Gabriel, F.H.H. Brill
Bibliografische Daten 
Journal of Hospital Infection, Published online: December 20, 2019
Abstract 

Biofilms present a challenge in flexible endoscope reprocessing (1). High level disinfectants have only a limited effect against biofilms in endoscopes (2). Peracetic acid is frequently used for reprocessing of flexible endoscopes. It has advantages compared to glutaraldehyde in avoiding build-up of biofilm in endoscope channels, due to reduced protein fixation (3). To assess benefits of using a pH buffered peracetic acid in removing biofilm, we compared unbuffered and pH buffered peracetic acid solutions for their potential to reduce colony counts of biofilms.