Ultrasound in food treatment depends on multiple factors including frequency and power of ultrasonic generator,medium temperature, pressure of the treatment, and characteristics of the treatment liquid (Manas, Pagan, & Raso, 2000). Numerous studies have attempted to explain the effect of ultrasound on fruits, vegetables, fruit juices and dairy products. Sagong et al. (2011) reported that combined treatment of ultrasound 30 W/L (40 kHz) and organic acids (malic, lactic and citric acid) were effective at pathogen reduction without affecting quality (color and texture) on lettuce during seven days of storage. Yang, Cao, Cai, and Zheng (2011) found that combined salicylic acid (0.05 mM) and ultrasound treatment (40 kHz, 8.8 W/L, 10 min) reduced the Penicillium expansum in peach and did not impair the quality after six days of storage at 20 C