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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Jiménez Callejón, María J. Esteban Cerdán, Luis Navarro López, Elvira Robles Medina, Alfonso González Moreno, Pedro A. Molina Grima, Emilio Martín Valverde, Lorena Castillo López, Beatriz |
| Description | Country affiliation: Spain Author Affiliation: Navarro López E ( Area of Chemical Engineering, University of Almería, 04120 Almería, Spain.); Robles Medina A ( Area of Chemical Engineering, University of Almería, 04120 Almería, Spain. Electronic address: arobles@ual.es.); González Moreno PA ( Area of Chemical Engineering, University of Almería, 04120 Almería, Spain.); Jiménez Callejón MJ ( Area of Chemical Engineering, University of Almería, 04120 Almería, Spain.); Esteban Cerdán L ( Area of Chemical Engineering, University of Almería, 04120 Almería, Spain.); Martín Valverde L ( Area of Chemical Engineering, University of Almería, 04120 Almería, Spain.); Castillo López B ( Area of Chemical Engineering, University of Almería, 04120 Almería, Spain.); Molina Grima E ( Area of Chemical Engineering, University of Almería, 04120 Almería, Spain.) |
| Abstract | Fatty acid methyl esters (FAMEs, biodiesel) were produced from Nannochloropsis gaditana wet biomass (12% saponifiable lipids, SLs) by extraction of SLs and lipase catalyzed transesterification. Lipids were extracted by ethanol (96%)-hexane, and 31% pure SLs were obtained with 85% yield. When the lipids were degummed, SL purity increased to 95%. Novozym 435 was selected from four lipases tested. Both the lipidic composition and the use of t-butanol instead of hexane increased the reaction velocity and the conversion, since both decreased due to the adsorption of polar lipids on the lipase immobilization support. The best FAME yield (94.7%) was attained at a reaction time of 48h and using 10mL of t-butanol/g SL, 0.225gN435/g SL, 11:1 methanol/SL molar ratio and adding the methanol in three steps. In these conditions the FAME conversion decreased by 9.8% after three reaction cycles catalyzed by the same lipase batch. |
| ISSN | 09608524 |
| Volume Number | 187 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-01-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Biofuels Microbiology Fatty Acids Chemical Synthesis Lipase Chemistry Lipid Metabolism Physiology Lipids Stramenopiles Metabolism Esters Static Electricity Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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