This research work was basically done to study the optimized parameters on the basis of oil yield, which was the dependent parameter. The data from all the experiments were analyzed using Design Expert and the response functions were developed using multiple regression analysis and second order model was fitted for each response. It was found that power, sonication time and solvent volume had highly noteworthy consequence on oil yield. With upsurge in level of all the three variables, oil yield augmented. | Ultrasound assisted extraction of oil from soybean