Lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols
Abstract Enzymatic synthesis of esters of lactic acid and straight‐chain alcohols with different chain lengths (C 6 –C 18 ) were investigated in batch reactions with hexadecanol (C 16 ) as the model alcohol. Cyclohexane was the best solvent for higher ester yields, and the best biocatalyst was the i...
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crwiley:10.1007/s11746-005-1159-1 2024-06-02T07:58:20+00:00 Lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols Roenne, Torben H. Xu, Xuebing Tan, Tianwei 2005 http://dx.doi.org/10.1007/s11746-005-1159-1 https://onlinelibrary.wiley.com/doi/full/10.1007/s11746-005-1159-1 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of the American Oil Chemists' Society volume 82, issue 12, page 881-885 ISSN 0003-021X 1558-9331 journal-article 2005 crwiley https://doi.org/10.1007/s11746-005-1159-1 2024-05-03T10:49:19Z Abstract Enzymatic synthesis of esters of lactic acid and straight‐chain alcohols with different chain lengths (C 6 –C 18 ) were investigated in batch reactions with hexadecanol (C 16 ) as the model alcohol. Cyclohexane was the best solvent for higher ester yields, and the best biocatalyst was the immobilized Candida antarctica lipase B (Novozym 435) as well as the textile‐immobilized Candida sp. lipase. A method was established to obtain ester yields in the range of 71 to 82% for the different alcohols, and the most favorable conditions for the esterification reaction using Novozym 435 were an equimolar ratio of lactic acid to alcohol, each at a concentration of 120 mM each; a 50°C reaction temperature; 190 rpm shaking speed; and the addition of 100 mg molecular sieves (4 Å) for drying. The ester yield increased with increasing lipase load, and a yield of 79.2% could be obtained after 24 h of reaction at 20 wt% of Novozym 435. The immobilized Candida sp. lipase prepared in the laboratory also could be used to produce esters of lactic acid and straight‐chain alcohols, but it had a much lower activity than Novozym 435 with a temperature optimum of 40°C. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library Journal of the American Oil Chemists' Society 82 12 881 885 |
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Wiley Online Library |
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English |
description |
Abstract Enzymatic synthesis of esters of lactic acid and straight‐chain alcohols with different chain lengths (C 6 –C 18 ) were investigated in batch reactions with hexadecanol (C 16 ) as the model alcohol. Cyclohexane was the best solvent for higher ester yields, and the best biocatalyst was the immobilized Candida antarctica lipase B (Novozym 435) as well as the textile‐immobilized Candida sp. lipase. A method was established to obtain ester yields in the range of 71 to 82% for the different alcohols, and the most favorable conditions for the esterification reaction using Novozym 435 were an equimolar ratio of lactic acid to alcohol, each at a concentration of 120 mM each; a 50°C reaction temperature; 190 rpm shaking speed; and the addition of 100 mg molecular sieves (4 Å) for drying. The ester yield increased with increasing lipase load, and a yield of 79.2% could be obtained after 24 h of reaction at 20 wt% of Novozym 435. The immobilized Candida sp. lipase prepared in the laboratory also could be used to produce esters of lactic acid and straight‐chain alcohols, but it had a much lower activity than Novozym 435 with a temperature optimum of 40°C. |
format |
Article in Journal/Newspaper |
author |
Roenne, Torben H. Xu, Xuebing Tan, Tianwei |
spellingShingle |
Roenne, Torben H. Xu, Xuebing Tan, Tianwei Lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols |
author_facet |
Roenne, Torben H. Xu, Xuebing Tan, Tianwei |
author_sort |
Roenne, Torben H. |
title |
Lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols |
title_short |
Lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols |
title_full |
Lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols |
title_fullStr |
Lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols |
title_full_unstemmed |
Lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols |
title_sort |
lipase‐catalyzed esterification of lactic acid with straight‐chain alcohols |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1007/s11746-005-1159-1 https://onlinelibrary.wiley.com/doi/full/10.1007/s11746-005-1159-1 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Journal of the American Oil Chemists' Society volume 82, issue 12, page 881-885 ISSN 0003-021X 1558-9331 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1007/s11746-005-1159-1 |
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Journal of the American Oil Chemists' Society |
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82 |
container_issue |
12 |
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881 |
op_container_end_page |
885 |
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1800741644653297664 |