Despite considerable amounts of literature have been published on ultrasound application, many of them were dealt with microbial quality rather than physical and chemical properties. Furthermore no scientific data are available regarding to the use of ultrasound with different treatment times and power. Therefore, the aim of this paper was to examine the effect of different ultrasound power and treatment times on physical (color, texture) and chemical properties (gas composition inside package, pH, total soluble solid, FT-NIR analysis) of strawberry during four weeks of storage at 4 _C