Immobilization of an Antarctic Pseudomonas AMS8 Lipase for Low Temperature Ethyl Hexanoate Synthesis
The demand for synthetic flavor ester is high, especially in the food, beverage, and cosmetic and pharmaceutical industries. It is derived from the reaction between a short-chain fatty acid and alcohol. Lipases from Antarctic bacteria have gained huge interest in the industry due to its ability reac...
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ftdoajarticles:oai:doaj.org/article:daca17d2d05f4d89b49c949b26ab6178 2023-05-15T13:58:59+02:00 Immobilization of an Antarctic Pseudomonas AMS8 Lipase for Low Temperature Ethyl Hexanoate Synthesis Nurshakila Musa Wahhida Latip Raja Noor Zaliha Abd Rahman Abu Bakar Salleh Mohd Shukuri Mohamad Ali 2018-06-01T00:00:00Z https://doi.org/10.3390/catal8060234 https://doaj.org/article/daca17d2d05f4d89b49c949b26ab6178 EN eng MDPI AG http://www.mdpi.com/2073-4344/8/6/234 https://doaj.org/toc/2073-4344 2073-4344 doi:10.3390/catal8060234 https://doaj.org/article/daca17d2d05f4d89b49c949b26ab6178 Catalysts, Vol 8, Iss 6, p 234 (2018) cold adapted lipase immobilization esterification Chemical technology TP1-1185 Chemistry QD1-999 article 2018 ftdoajarticles https://doi.org/10.3390/catal8060234 2022-12-31T04:07:41Z The demand for synthetic flavor ester is high, especially in the food, beverage, and cosmetic and pharmaceutical industries. It is derived from the reaction between a short-chain fatty acid and alcohol. Lipases from Antarctic bacteria have gained huge interest in the industry due to its ability react at low temperatures. The use of immobilization enzymes is one of the methods that can improve the stability of the enzyme. The current work encompasses the low temperature enzymatic synthesis of ethyl hexanoate by direct esterification of ethanol with hexanoic acid in a toluene and solvent-free system. The effects of various reaction parameters such as the organic solvent, temperature, time, substrate, substrate ratio and concentration, enzyme concentration on ethyl hexanoate synthesis were tested. Several matrices were used for immobilization and comparisons of the efficiency of immobilized enzyme with free enzyme in the synthesis of flavor ester were conducted. Ester production was optimally synthesized at 20 °C in both systems— immobilized and free enzyme. A 69% ester conversion rate was achieved after a two-hour incubation in toluene, compared to 47% in a solvent-free system for free enzyme. Immobilized AMS8 lipase showed a higher conversion of ester in toluene with respect to free-solvents, from 80% to 59%, respectively. Immobilized enzymes showed enhancement to the stability of the enzyme in the presence of the organic solvent. The development of AMS8 lipase as an immobilized biocatalyst demonstrates great potential as a cost-effective enzyme for biocatalysis and biotransformation in the food industry. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Catalysts 8 6 234 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
cold adapted lipase immobilization esterification Chemical technology TP1-1185 Chemistry QD1-999 |
spellingShingle |
cold adapted lipase immobilization esterification Chemical technology TP1-1185 Chemistry QD1-999 Nurshakila Musa Wahhida Latip Raja Noor Zaliha Abd Rahman Abu Bakar Salleh Mohd Shukuri Mohamad Ali Immobilization of an Antarctic Pseudomonas AMS8 Lipase for Low Temperature Ethyl Hexanoate Synthesis |
topic_facet |
cold adapted lipase immobilization esterification Chemical technology TP1-1185 Chemistry QD1-999 |
description |
The demand for synthetic flavor ester is high, especially in the food, beverage, and cosmetic and pharmaceutical industries. It is derived from the reaction between a short-chain fatty acid and alcohol. Lipases from Antarctic bacteria have gained huge interest in the industry due to its ability react at low temperatures. The use of immobilization enzymes is one of the methods that can improve the stability of the enzyme. The current work encompasses the low temperature enzymatic synthesis of ethyl hexanoate by direct esterification of ethanol with hexanoic acid in a toluene and solvent-free system. The effects of various reaction parameters such as the organic solvent, temperature, time, substrate, substrate ratio and concentration, enzyme concentration on ethyl hexanoate synthesis were tested. Several matrices were used for immobilization and comparisons of the efficiency of immobilized enzyme with free enzyme in the synthesis of flavor ester were conducted. Ester production was optimally synthesized at 20 °C in both systems— immobilized and free enzyme. A 69% ester conversion rate was achieved after a two-hour incubation in toluene, compared to 47% in a solvent-free system for free enzyme. Immobilized AMS8 lipase showed a higher conversion of ester in toluene with respect to free-solvents, from 80% to 59%, respectively. Immobilized enzymes showed enhancement to the stability of the enzyme in the presence of the organic solvent. The development of AMS8 lipase as an immobilized biocatalyst demonstrates great potential as a cost-effective enzyme for biocatalysis and biotransformation in the food industry. |
format |
Article in Journal/Newspaper |
author |
Nurshakila Musa Wahhida Latip Raja Noor Zaliha Abd Rahman Abu Bakar Salleh Mohd Shukuri Mohamad Ali |
author_facet |
Nurshakila Musa Wahhida Latip Raja Noor Zaliha Abd Rahman Abu Bakar Salleh Mohd Shukuri Mohamad Ali |
author_sort |
Nurshakila Musa |
title |
Immobilization of an Antarctic Pseudomonas AMS8 Lipase for Low Temperature Ethyl Hexanoate Synthesis |
title_short |
Immobilization of an Antarctic Pseudomonas AMS8 Lipase for Low Temperature Ethyl Hexanoate Synthesis |
title_full |
Immobilization of an Antarctic Pseudomonas AMS8 Lipase for Low Temperature Ethyl Hexanoate Synthesis |
title_fullStr |
Immobilization of an Antarctic Pseudomonas AMS8 Lipase for Low Temperature Ethyl Hexanoate Synthesis |
title_full_unstemmed |
Immobilization of an Antarctic Pseudomonas AMS8 Lipase for Low Temperature Ethyl Hexanoate Synthesis |
title_sort |
immobilization of an antarctic pseudomonas ams8 lipase for low temperature ethyl hexanoate synthesis |
publisher |
MDPI AG |
publishDate |
2018 |
url |
https://doi.org/10.3390/catal8060234 https://doaj.org/article/daca17d2d05f4d89b49c949b26ab6178 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Catalysts, Vol 8, Iss 6, p 234 (2018) |
op_relation |
http://www.mdpi.com/2073-4344/8/6/234 https://doaj.org/toc/2073-4344 2073-4344 doi:10.3390/catal8060234 https://doaj.org/article/daca17d2d05f4d89b49c949b26ab6178 |
op_doi |
https://doi.org/10.3390/catal8060234 |
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Catalysts |
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8 |
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6 |
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234 |
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