Conversion rates of two major types of biodiesel, fatty acid methyl ester (FAME) and fatty acid ethyl ester (FAEE),
reached maximal values (>90%) after 24 h. The process of FAME production is generally more simple
and economical than that of FAEE production, even though the two processes show similar conversion
rates. In spite of the damaging effect of ethanol on enzyme activity, we successfully obtained ethyl ester
by the enzymatic method. Our findings indicate that Lipase GH2 is a useful catalyst for conversion of microalgae
oil to FAME or FAEE, and this system provides efficiency and reduced costs in biodiesel
production.