Combined Use of Ultrasound and Natural Antimicrobials To Inactivate Listeria monocytogenes in Orange Juice

摘要: The presence of Listeria monocytogenes could seriously affect the safety nonpasteurized fruit juices. High-intensity ultrasound combined with mild heat treatment and natural antimicrobials may be an alternative technology for juice preservation. response L. in orange to treatments involving moderate temperature (45°C), high-intensity (600 W, 20 kHz, 95.2-μm wave amplitude), addition different levels vanillin (0, 1,000, 1,500, 2,000 ppm), citral 75, 100 or both was investigated find most effective inactivation treatment. Nonlinear semilogarithmic survival curves were successfully fitted by Weibull model. greatly increased bactericidal effect thermosonication changed distribution times. When added together applied, narrowest frequency shapes, skewed right, low variances death time means...