Further studies on the use of isopropanol-based quaternary ammonium sanitizers found that
they were more effective than aqueous quaternary ammonium sanitizers (Du et al., 2010). The same authors also showed similar reductions in Salmonella populations to results to those found here.
In the previous study both isopropanol and isopropanol-based quaternary ammonium sanitizer were able to reduce Salmonella counts from an initial contamination level of 5.2 log CFU/g to below
1.3 log CFU/g in almond hulleresheller dust. In our studies Salmonella reductions were found to be as great as 4-6 log CFU/cm 2 depending on the initial contamination