Lipase-catalyzed biodiesel synthesis with different acyl acceptors
Biodiesel is an alternative fuel for diesel engine that is environmentally acceptable. Conventionally, biodiesel is produced by transesterification of triglycerides and short alcohols in the presence of an acid or an alkaline catalyst. There are several problems associated with this kind of producti...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Technology, Novi Sad
2008-01-01
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| Series: | Acta Periodica Technologica |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-7188/2008/1450-71880839161O.pdf |
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| author | Ognjanović Nevena D. Šaponjić Svetlana V. Bezbradica Dejan I. Knežević Zorica D. |
| author_facet | Ognjanović Nevena D. Šaponjić Svetlana V. Bezbradica Dejan I. Knežević Zorica D. |
| author_sort | Ognjanović Nevena D. |
| collection | DOAJ |
| description | Biodiesel is an alternative fuel for diesel engine that is environmentally acceptable. Conventionally, biodiesel is produced by transesterification of triglycerides and short alcohols in the presence of an acid or an alkaline catalyst. There are several problems associated with this kind of production that can be resolved by using lipase as the biocatalyst. The aim of the present work was to investigate novel acyl acceptors for biodiesel production. 2-Propanol and n-butanol have a less negative effect on lipase stability, and they also improve low temperature properties of the fuel. However, excess alcohol leads to inactivation of the enzyme, and glycerol, a major byproduct, can block the immobilized enzyme, resulting in low enzymatic activity. This problem was solved by using methyl acetate as acyl acceptor. Triacetylglycerol is produced instead of glycerol, and it has no negative effect on the activity of the lipase. |
| first_indexed | 2024-04-12T18:06:52Z |
| format | Article |
| id | doaj.art-0caca3bc01634f3081ae941970371938 |
| institution | Directory Open Access Journal |
| issn | 1450-7188 |
| language | English |
| last_indexed | 2024-04-12T18:06:52Z |
| publishDate | 2008-01-01 |
| publisher | Faculty of Technology, Novi Sad |
| record_format | Article |
| series | Acta Periodica Technologica |
| spelling | doaj.art-0caca3bc01634f3081ae9419703719382022-12-22T03:21:57ZengFaculty of Technology, Novi SadActa Periodica Technologica1450-71882008-01-0120083916116910.2298/APT0839161OLipase-catalyzed biodiesel synthesis with different acyl acceptorsOgnjanović Nevena D.Šaponjić Svetlana V.Bezbradica Dejan I.Knežević Zorica D.Biodiesel is an alternative fuel for diesel engine that is environmentally acceptable. Conventionally, biodiesel is produced by transesterification of triglycerides and short alcohols in the presence of an acid or an alkaline catalyst. There are several problems associated with this kind of production that can be resolved by using lipase as the biocatalyst. The aim of the present work was to investigate novel acyl acceptors for biodiesel production. 2-Propanol and n-butanol have a less negative effect on lipase stability, and they also improve low temperature properties of the fuel. However, excess alcohol leads to inactivation of the enzyme, and glycerol, a major byproduct, can block the immobilized enzyme, resulting in low enzymatic activity. This problem was solved by using methyl acetate as acyl acceptor. Triacetylglycerol is produced instead of glycerol, and it has no negative effect on the activity of the lipase.http://www.doiserbia.nb.rs/img/doi/1450-7188/2008/1450-71880839161O.pdfbiodiesellipasemethanol2-propanoln-butanolmethyl acetate |
| spellingShingle | Ognjanović Nevena D. Šaponjić Svetlana V. Bezbradica Dejan I. Knežević Zorica D. Lipase-catalyzed biodiesel synthesis with different acyl acceptors Acta Periodica Technologica biodiesel lipase methanol 2-propanol n-butanol methyl acetate |
| title | Lipase-catalyzed biodiesel synthesis with different acyl acceptors |
| title_full | Lipase-catalyzed biodiesel synthesis with different acyl acceptors |
| title_fullStr | Lipase-catalyzed biodiesel synthesis with different acyl acceptors |
| title_full_unstemmed | Lipase-catalyzed biodiesel synthesis with different acyl acceptors |
| title_short | Lipase-catalyzed biodiesel synthesis with different acyl acceptors |
| title_sort | lipase catalyzed biodiesel synthesis with different acyl acceptors |
| topic | biodiesel lipase methanol 2-propanol n-butanol methyl acetate |
| url | http://www.doiserbia.nb.rs/img/doi/1450-7188/2008/1450-71880839161O.pdf |
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