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Abstract
The purpose of this study is to load glycerol monolaurate (GML) in a microemulsion system for the inactivation of Stenotrophomonas maltophilia. The influence of ethanol, propylene glycol (PG) and sodium benzoate (Na-Bz) on oil solubilization of GML microemulsions is clearly reflected in the phase behavior of these systems. One dilution-stable microemulsion formulation was determined and stable by the examination of the physical stability. Results showed that the microemulsion at 100 ppm, comparable to 3 mg/L ceftazidime, had much higher antimicrobial activities against S. maltophilia, with a major contribution of GML, and Na-Bz enhanced the antimicrobial activities as a hydrotrope.
