Methanol has traditionally been the alcohol most commonly
used in biodiesel production, but there is now increasing emphasis
on use of ethanol for production of FAEE. Both FAME and FAEE
preparation methods have unique advantages and disadvantages
(Mohamad Firdaus et al., 2014). Methanol is less expensive than
ethanol, but oil is less soluble in methanol, and methanolysis
involves limited mass transfer during the transesterification process.
Ethanol is safer to use, renewable, has higher oil solubility,
and the mass transfer limitation is not as great; however, ethanol
is more expensive than methanol