The Synthesis of Magnesium Soaps as Feed for Biohydrocarbon Production Meiti Pratiwi, Godlief F. Neonufa, Tirto Prakoso and Tatang H. Soerawidjaja MATEC Web Conf., 156 (2018) 03001 Published online: 14 March 2018 DOI: 10.1051/matecconf/201815603001