Paper Title
Plant Oil and Fats Lipolysis using Plant Latex Lipase: Mild Condition Pre-Treatment for Metal Soap Synthesis

Metal soap is an intermediate substance in oleochemical industry which also is a potential precursor for biofuel. Synthesis of metal soap requires high pressure operation, otherwise, partial or total conversion of triglyceride into fatty acid is necessary. In this paper, an enzymatic hydrolysis using plant latex lipase was proposed to pretreat triglyceride prior to metal soap synthesis. Physical characteristic and reduction of acid value confirmed the saponification reaction of fatty acid. Two procedures based on references were compared. Overall, it is concluded that lipolysis with plant lipase is an effective pretreatment to produce metal soap in atmospheric pressure. Index terms - Metal soap, saponification, lipolysis, plant latex lipase, fatty acids