Publication:
Production of biodiesel from high acid value waste cooking oil using an optimized lipase enzyme/acid-catalyzed hybrid process

Simple item page
dc.citedby44
dc.contributor.authorSaifuddin N.en_US
dc.contributor.authorRaziah A.Z.en_US
dc.contributor.authorFarah H.N.en_US
dc.contributor.authorid22135844300en_US
dc.contributor.authorid25825363100en_US
dc.contributor.authorid57197610295en_US
dc.date.accessioned2023-12-29T07:55:48Z
dc.date.available2023-12-29T07:55:48Z
dc.date.issued2009
dc.description.abstractThe present study is aimed at developing an enzymatic/acidcatalyzed hybrid process for biodiesel production using waste cooking oil with high acid value (poor quality) as feedstock. Tuned enzyme was prepared using a rapid drying technique of microwave dehydration (time required around 15 minutes). Further enhancement was achieved by three phase partitioning (TPP) method. The results on the lipase enzyme which was subjected to pH tuning and TPP, indicated remarkable increase in the initial rate of transesterification by 3.8 times. Microwave irradiation was found to increase the initial reaction rates by further 1.6 times, hence giving a combined increase in activity of about 5.4 times. The optimized enzyme was used for hydrolysis and 88% of the oil taken initially was hydrolyzed by the lipase. The hydrolysate was further used in acidcatalyzed esterification for biodiesel production. By using a feedstock to methanol molar ratio of 1:15 and a sulphuric acid concentration of 2.5%, a biodiesel conversion of 88% was obtained at 50 �C for an hour reaction time. This hybrid process may open a way for biodiesel production using unrefined and used oil with high acid value as feedstock.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1155/2009/801756
dc.identifier.epageS495
dc.identifier.issueSUPPL. 1
dc.identifier.scopus2-s2.0-79953092352
dc.identifier.spageS485
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-79953092352&doi=10.1155%2f2009%2f801756&partnerID=40&md5=9ac267d5b9fbf731afdbe6c70fa105b7
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30915
dc.identifier.volume6
dc.pagecount10
dc.publisherHindawi Limiteden_US
dc.relation.ispartofAll Open Access; Gold Open Access; Green Open Access
dc.sourceScopus
dc.sourcetitleE-Journal of Chemistry
dc.subjectAcid catalyst
dc.subjectLipase-candida rugosa
dc.subjectMicrowave drying and hybrid process
dc.subjectPH tuned enzyme
dc.subjectThree phase partitioning
dc.titleProduction of biodiesel from high acid value waste cooking oil using an optimized lipase enzyme/acid-catalyzed hybrid processen_US
dc.typeArticleen_US
dspace.entity.typePublication
Files
Collections
SCOPUS