Fig. 4From: Brette Pearl Spar Mable (BPSM): a potential recoverable catalyst as a renewable source of biodiesel from Thevetia peruviana seed oil for the benefit of sustainable development in West Africaa 3D surface plot of MRS showing interactive effect of catalyst amount and reaction time on biodiesel yield % (v/v); b catalyst amount and methanol/oil ratio on biodiesel yield % (v/v); c reaction time and methanol/oil ratio on biodiesel yield % (v/v). d 3D surface plot of ANN showing interactive effect of catalyst amount and reaction time on biodiesel yield % (v/v); e catalyst amount and methanol/oil ratio on biodiesel yield % (v/v); f reaction time and methanol/oil ratio on biodiesel yield % (v/v)Back to article page