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dc.contributor.authorManurung, Renita
dc.contributor.authorHasibuan, Rosdanelli
dc.contributor.authorTaslim, Taslim
dc.contributor.authorRahayu, Nur Sri
dc.contributor.authorDarusmy, Aira
dc.date.accessioned2019-05-15T05:33:47Z
dc.date.available2019-05-15T05:33:47Z
dc.date.issued2015
dc.identifier.otherIndra
dc.identifier.urihttp://repository.usu.ac.id/handle/123456789/70149
dc.descriptionRenita Manurungid
dc.description.abstractEnzymatic transesterification reaction of degummed palm oil (DPO) in ionic liquid system has been demonstrated in producing biodiesel. Ionic liquid as a supporter of enzyme create a catalytic system that can be used in the transesterification of oil into biodiesel. Recycled Lypozime RM IM to produced biodiesel from DPO as feedstock in ionic liquid system has been investigated. In this research, synthesis of biodiesel from DPO through transesterification (using of methanol as acyl acceptor) and recycled Lipozyme RM IM as catalysts in ionic liquid [BMIM] [PF6] system is conducted in a batch reactor to obtain biodiesel as product were analyzed using Gas Chromatography (GC). As a study in this research, discussed the influence of ionic liquids to performance of Lypozime RM IM or decreasing of lipase activity while recycled that seen from the acquisition yield of biodiesel as a result. The best result in ionic liquid system with ratio of DPO to ionic liquid 1: 1.5 (molar ratio) showed that decreasing lipase activity obtained in this research was about 4.28% (yield from 68.98% to 56.12%) after 4 times with the conditions of 1:3 molar ratio, temperature of reaction 45 C and amount of Lipozyme RM IM was 30%, and 6 hours reaction time.id
dc.language.isoenid
dc.subjectBiodieselid
dc.subjectDPOid
dc.subjectlipozymeid
dc.subjectIonic liquidid
dc.subjectEnzyme activityid
dc.titleEnzymatic Transesterification of DPO to Produce Biodiesel by Using Lipozyme RM IM in Ionic Liquid Systemid
dc.typeLecture Papersid


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