The ultrasonic sonication time and amplitude required toachieve a maximum bioactive compound recovery from the plantmaterial vary with factors such as the extraction solvent used,bioactive compound interest, plant material, ultrasonic extrac-tion procedure, etc. A previous study done by Nayak and Rastogi(2011) reported that the optimum ultrasonic probe conditions ofthe sonication time of 35 min and an amplitude of 10–14% gave ahigher anthocyanins recovery from G. indica Choisy using the ultra-sonic probe extraction. Although the extraction solvent used wasnot mentioned, the slight difference in amplitude with this studymay be due to the different ultrasonic instrument used, extractionprocedure, and/or plant material studied. Meanwhile, Chen et al.(2007) found that the optimum ultrasonic probe conditions forextracting anthocyanins from red raspberries were at sonicationtime of 200 s and ultrasonic power of 400 w. Golmohamadi et al.(2013) observed that the extracted total anthocyanins from redraspberry puree increased by 12.6% at 20 kHz after 10 min sonica-tion, but no further significant increase was recorded after 20 min.Other than anthocyanins, Chua et al. (2009) discovered that ultra-sound of 20% amplitude and sonication time of 30 min gave thehighest phospholipids extracted from palm-pressed fiber.