Extraction of oil from Moringa oleifera kernels using supercritical carbon dioxide with ethanol for pretreatment: Optimization of the extraction process

► The study involved supercritical carbon dioxide extraction of kernels oil. ► Modifying the loading of Moringa oleifera kernels increased the oil yield by 26.89%. ► Adding EtOH for the pretreatment of the kernels enhanced the oil yield up to 10%. ► Response Surface Methodology predicted an optimal oil yield of 37.84%. ► A crossover pressure point of the oil was found within the range 22.5-30 MPa.