OPTIMIZATION OF BIODIESEL PRODUCTION FROM JATROPHA SEED-OIL USING MICROBIAL LIPASE-CATALYZED TRANSESTERIFICATION REACTIONS

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dc.contributor.authorABBAS, MARY
dc.date.accessioned2014-03-12T07:39:38Z
dc.date.available2014-03-12T07:39:38Z
dc.date.issued2011-10
dc.descriptionA RESEARCH THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL, AHMADU BELLO UNIVERSITY, ZARIA NIGERIA IN PARTIAL FULFILLMENT FOR THE AWARD OF MASTER DEGREE IN BIOCHEMISTRY DEPARTMENT OF BIOCHEMISTRY FACULTY OF SCIENCE AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA OCTOBER, 2011en_US
dc.description.abstractThe environmental concern and diminishing reserves of fossil fuels has increased the demand for the study of biodiesel production. This study was undertaken to optimize biodiesel production from Jatropha seed-oil using microbial lipase-catalyzed transesterification reactions. Oils were extracted using Soxhlet extractor and the free fatty acids (%) were evaluated using Gas chromatography (GC). The highest oil yield (>60%) was of Jatropha seed provenances from Kebbi (Wasugu Maga Danko), Zamfara (Dandotodaji Dandotodaji) and Kastina (Chanranchi Kuki) states. While the least oil yield (<30%) was from Sokoto (Shagari Kajiji), Jigawa (Birnin Kudu) and Zamfara (Magazu 2 Tsafe) states. The fatty acids found in both non-transesterified and the transesterified Jatropha seed-oil provenances were linoleic, oleic, palmitic methyl ester, and stearic acids as the dominant fatty acids in variable compositions. Also, ecosanoic, palmitic and palmitoleic acids were the least fatty acids present. Fatty acid methyl esters in better composition were found in the transesterified Jatropha seed oil compared to those in the non-transesterified Jatropha curcas seed oil. The study revealed fatty acids profile which could be useful as feedstock for biodiesel and other industrial applications. It could also be concluded that transesterification of Jatropha seed-oil by enzymatic catalysis improved the quality of biodiesel production.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/3728
dc.language.isoenen_US
dc.subjectOPTIMIZATION,en_US
dc.subjectBIODIESEL PRODUCTION,en_US
dc.subjectJATROPHA SEED-OIL,en_US
dc.subjectUSING MICROBIAL LIPASE-CATALYZED,en_US
dc.subjectTRANSESTERIFICATION REACTIONS.en_US
dc.titleOPTIMIZATION OF BIODIESEL PRODUCTION FROM JATROPHA SEED-OIL USING MICROBIAL LIPASE-CATALYZED TRANSESTERIFICATION REACTIONSen_US
dc.typeThesisen_US
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