This work deals with the extraction of date seed oil using an acoustic cavitation. The process parameters such as sonication (extraction) time, power dissipation, operating temperature and solvent to date seed ratio have been optimized on the basis of extracted oil yield. The obtained results have been compared with the frequently used extraction methods (such as maceration and Soxhlet extraction method).The highest extraction efficiency was found at solvent (hexane) to seed ratio of 5, applied rated power of 30 % of 750 W (actual dissipated power is 2.98 W), ultrasound treatment time of 45 min, at a temperature of 20 0 C. It was observed that, as ultrasonic power dissipation increases, the oil extraction yield of also increases and decline with an increase in temperature. This results attributed to only physical effects of cavitation occur onto the surface of the date seeds which enhance the permeability of solvent into the plant tissues due to the formation of crack, crevices and micro fractures onto seed surface. A comparison of field emission scanning electron microscopy (FE-SEM) images of fresh date seed and ultrasonically treated date seed indicated the development of crack, crevices and micro fractures onto seed surface of date seed which results the cell walls disruption. However, the cavitation assisted oil extraction has reduced environmental impact and less time and energy intensive process as it was performed at room temperature.

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