There are various methods for producing biodiesel , and most strategies use the same fundamental chemical reaction. Trans-esterification uses vegetable oil and alcohol as inputs and produces ester and glycerol as outputs . In the transesterification reaction, the catalyst used may be basic, acidic or enzymatic. Reports of measures to improve and optimize catalysts used in biodiesel production processes to meet the commercial use have been published . The use of heterogeneous solid catalysts (HSCs) has been proposed as a solution to various disadvantages associated with homogeneous catalysts 7 . HSC is a reusable, non-corrosive, environmentally friendly, and produces no soap . HSC can be used to mitigate the effects of waste pollution on the environment. Biomass that has been used to synthesize catalysts for transesterification includes banana trunk , sugarcane bagasse , cocoa pod husk , and ripe banana fruit peels . These biomasses are synthesized and used as catalyst to produce biodiesel.