3.1. Effect of co-solvent on conversion yield of biodiesel
In the direct transesterification study, dried microalgae biomass was not pre-treated by any other method to destroy the cell wall. Experiments with petroleum ether, n-Hexane, carbon tetrachloride, ethyl ether, n-butanol, chloroform and acetone were carried out to determine the best co-solvent with 75% ethanol for extracting lipids