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, FHH 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.