Immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel
Simple alkyl ester derivatives of restaurant grease were prepared using immobilized lipases as biocatalysts. The lipases studied included those of Thermomyces lanuginosa and Candida antarctica supported on granulated silica (gran‐ T.l. and gran‐ C.a. , respectively), C. antarctica supported on a mac...
Published in: | Biotechnology and Applied Biochemistry |
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crwiley:10.1042/ba20020007 2024-10-13T14:02:52+00:00 Immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel Hsu, An‐Fei Jones, Kerby Foglia, Thomas A. Marmer, William N. 2002 http://dx.doi.org/10.1042/ba20020007 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1042%2FBA20020007 https://iubmb.onlinelibrary.wiley.com/doi/pdf/10.1042/BA20020007 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Biotechnology and Applied Biochemistry volume 36, issue 3, page 181-186 ISSN 0885-4513 1470-8744 journal-article 2002 crwiley https://doi.org/10.1042/ba20020007 2024-09-19T04:20:10Z Simple alkyl ester derivatives of restaurant grease were prepared using immobilized lipases as biocatalysts. The lipases studied included those of Thermomyces lanuginosa and Candida antarctica supported on granulated silica (gran‐ T.l. and gran‐ C.a. , respectively), C. antarctica supported on a macroporous acrylic resin (SP435) and Pseudomonas cepacia immobilized within a phyllosilicate sol‐gel matrix (IM PS‐30). All alcoholysis reactions were carried out in solvent‐free media employing a one‐step addition of the alcohol to the reaction system. Of the lipases studied, IM PS‐30 was found to be the most effective in catalysing the methanolysis and ethanolysis of grease. The processes catalysed by gran‐ T.l . and gran‐ C.a . lipases gave poor conversions to esters, and the SP435‐catalysed reactions gave intermediate yields of ethyl and methyl esters. Water activity ( a w ) was an important factor in the methanolysis reactions; reaction media with a w <0.5 resulted in the highest conversions to methyl esters. Molecular sieves also improved methyl ester yields by as much as 20% in transesterification reactions catalysed by IM PS‐30. The immobilized lipases also were evaluated for their ability to produce alkyl esters of grease with several additional normal and branched‐chain alcohols. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library Biotechnology and Applied Biochemistry 36 3 181 186 |
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Wiley Online Library |
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English |
description |
Simple alkyl ester derivatives of restaurant grease were prepared using immobilized lipases as biocatalysts. The lipases studied included those of Thermomyces lanuginosa and Candida antarctica supported on granulated silica (gran‐ T.l. and gran‐ C.a. , respectively), C. antarctica supported on a macroporous acrylic resin (SP435) and Pseudomonas cepacia immobilized within a phyllosilicate sol‐gel matrix (IM PS‐30). All alcoholysis reactions were carried out in solvent‐free media employing a one‐step addition of the alcohol to the reaction system. Of the lipases studied, IM PS‐30 was found to be the most effective in catalysing the methanolysis and ethanolysis of grease. The processes catalysed by gran‐ T.l . and gran‐ C.a . lipases gave poor conversions to esters, and the SP435‐catalysed reactions gave intermediate yields of ethyl and methyl esters. Water activity ( a w ) was an important factor in the methanolysis reactions; reaction media with a w <0.5 resulted in the highest conversions to methyl esters. Molecular sieves also improved methyl ester yields by as much as 20% in transesterification reactions catalysed by IM PS‐30. The immobilized lipases also were evaluated for their ability to produce alkyl esters of grease with several additional normal and branched‐chain alcohols. |
format |
Article in Journal/Newspaper |
author |
Hsu, An‐Fei Jones, Kerby Foglia, Thomas A. Marmer, William N. |
spellingShingle |
Hsu, An‐Fei Jones, Kerby Foglia, Thomas A. Marmer, William N. Immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel |
author_facet |
Hsu, An‐Fei Jones, Kerby Foglia, Thomas A. Marmer, William N. |
author_sort |
Hsu, An‐Fei |
title |
Immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel |
title_short |
Immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel |
title_full |
Immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel |
title_fullStr |
Immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel |
title_full_unstemmed |
Immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel |
title_sort |
immobilized lipase‐catalysed production of alkyl esters of restaurant grease as biodiesel |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1042/ba20020007 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1042%2FBA20020007 https://iubmb.onlinelibrary.wiley.com/doi/pdf/10.1042/BA20020007 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Biotechnology and Applied Biochemistry volume 36, issue 3, page 181-186 ISSN 0885-4513 1470-8744 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1042/ba20020007 |
container_title |
Biotechnology and Applied Biochemistry |
container_volume |
36 |
container_issue |
3 |
container_start_page |
181 |
op_container_end_page |
186 |
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1812819313930797056 |