Ethyl Butyrate Synthesis Catalyzed by Lipases A and B from Candida antarctica Immobilized onto Magnetic Nanoparticles. Improvement of Biocatalysts’ Performance under Ultrasonic Irradiation
The synthesis of ethyl butyrate catalyzed by lipases A (CALA) or B (CALB) from Candida antarctica immobilized onto magnetic nanoparticles (MNP), CALA-MNP and CALB-MNP, respectively, is hereby reported. MNPs were prepared by co-precipitation, functionalized with 3-aminopropyltriethoxysilane, activate...
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ftdoajarticles:oai:doaj.org/article:6c33dbc28eb0455b96435cb6ef58b630 2023-05-15T13:58:55+02:00 Ethyl Butyrate Synthesis Catalyzed by Lipases A and B from Candida antarctica Immobilized onto Magnetic Nanoparticles. Improvement of Biocatalysts’ Performance under Ultrasonic Irradiation Rodolpho R. C. Monteiro Davino M. Andrade Neto Pierre B. A. Fechine Ada A. S. Lopes Luciana R. B. Gonçalves José C. S. dos Santos Maria C. M. de Souza Roberto Fernandez-Lafuente 2019-11-01T00:00:00Z https://doi.org/10.3390/ijms20225807 https://doaj.org/article/6c33dbc28eb0455b96435cb6ef58b630 EN eng MDPI AG https://www.mdpi.com/1422-0067/20/22/5807 https://doaj.org/toc/1422-0067 1422-0067 doi:10.3390/ijms20225807 https://doaj.org/article/6c33dbc28eb0455b96435cb6ef58b630 International Journal of Molecular Sciences, Vol 20, Iss 22, p 5807 (2019) ethyl butyrate lipase a from candida antarctica lipase b from candida antarctica magnetic nanoparticles ultrasonic irradiation Biology (General) QH301-705.5 Chemistry QD1-999 article 2019 ftdoajarticles https://doi.org/10.3390/ijms20225807 2022-12-31T12:10:02Z The synthesis of ethyl butyrate catalyzed by lipases A (CALA) or B (CALB) from Candida antarctica immobilized onto magnetic nanoparticles (MNP), CALA-MNP and CALB-MNP, respectively, is hereby reported. MNPs were prepared by co-precipitation, functionalized with 3-aminopropyltriethoxysilane, activated with glutaraldehyde, and then used as support to immobilize either CALA or CALB (immobilization yield: 100 ± 1.2% and 57.6 ± 3.8%; biocatalysts activities: 198.3 ± 2.7 U p -NPB /g and 52.9 ± 1.7 U p -NPB /g for CALA-MNP and CALB-MNP, respectively). X-ray diffraction and Raman spectroscopy analysis indicated the production of a magnetic nanomaterial with a diameter of 13.0 nm, whereas Fourier-transform infrared spectroscopy indicated functionalization, activation and enzyme immobilization. To determine the optimum conditions for the synthesis, a four-variable Central Composite Design (CCD) (biocatalyst content, molar ratio, temperature and time) was performed. Under optimized conditions (1:1, 45 °C and 6 h), it was possible to achieve 99.2 ± 0.3% of conversion for CALA-MNP (10 mg) and 97.5 ± 0.8% for CALB-MNP (12.5 mg), which retained approximately 80% of their activity after 10 consecutive cycles of esterification. Under ultrasonic irradiation, similar conversions were achieved but at 4 h of incubation, demonstrating the efficiency of ultrasound technology in the enzymatic synthesis of esters. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles International Journal of Molecular Sciences 20 22 5807 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
ethyl butyrate lipase a from candida antarctica lipase b from candida antarctica magnetic nanoparticles ultrasonic irradiation Biology (General) QH301-705.5 Chemistry QD1-999 |
spellingShingle |
ethyl butyrate lipase a from candida antarctica lipase b from candida antarctica magnetic nanoparticles ultrasonic irradiation Biology (General) QH301-705.5 Chemistry QD1-999 Rodolpho R. C. Monteiro Davino M. Andrade Neto Pierre B. A. Fechine Ada A. S. Lopes Luciana R. B. Gonçalves José C. S. dos Santos Maria C. M. de Souza Roberto Fernandez-Lafuente Ethyl Butyrate Synthesis Catalyzed by Lipases A and B from Candida antarctica Immobilized onto Magnetic Nanoparticles. Improvement of Biocatalysts’ Performance under Ultrasonic Irradiation |
topic_facet |
ethyl butyrate lipase a from candida antarctica lipase b from candida antarctica magnetic nanoparticles ultrasonic irradiation Biology (General) QH301-705.5 Chemistry QD1-999 |
description |
The synthesis of ethyl butyrate catalyzed by lipases A (CALA) or B (CALB) from Candida antarctica immobilized onto magnetic nanoparticles (MNP), CALA-MNP and CALB-MNP, respectively, is hereby reported. MNPs were prepared by co-precipitation, functionalized with 3-aminopropyltriethoxysilane, activated with glutaraldehyde, and then used as support to immobilize either CALA or CALB (immobilization yield: 100 ± 1.2% and 57.6 ± 3.8%; biocatalysts activities: 198.3 ± 2.7 U p -NPB /g and 52.9 ± 1.7 U p -NPB /g for CALA-MNP and CALB-MNP, respectively). X-ray diffraction and Raman spectroscopy analysis indicated the production of a magnetic nanomaterial with a diameter of 13.0 nm, whereas Fourier-transform infrared spectroscopy indicated functionalization, activation and enzyme immobilization. To determine the optimum conditions for the synthesis, a four-variable Central Composite Design (CCD) (biocatalyst content, molar ratio, temperature and time) was performed. Under optimized conditions (1:1, 45 °C and 6 h), it was possible to achieve 99.2 ± 0.3% of conversion for CALA-MNP (10 mg) and 97.5 ± 0.8% for CALB-MNP (12.5 mg), which retained approximately 80% of their activity after 10 consecutive cycles of esterification. Under ultrasonic irradiation, similar conversions were achieved but at 4 h of incubation, demonstrating the efficiency of ultrasound technology in the enzymatic synthesis of esters. |
format |
Article in Journal/Newspaper |
author |
Rodolpho R. C. Monteiro Davino M. Andrade Neto Pierre B. A. Fechine Ada A. S. Lopes Luciana R. B. Gonçalves José C. S. dos Santos Maria C. M. de Souza Roberto Fernandez-Lafuente |
author_facet |
Rodolpho R. C. Monteiro Davino M. Andrade Neto Pierre B. A. Fechine Ada A. S. Lopes Luciana R. B. Gonçalves José C. S. dos Santos Maria C. M. de Souza Roberto Fernandez-Lafuente |
author_sort |
Rodolpho R. C. Monteiro |
title |
Ethyl Butyrate Synthesis Catalyzed by Lipases A and B from Candida antarctica Immobilized onto Magnetic Nanoparticles. Improvement of Biocatalysts’ Performance under Ultrasonic Irradiation |
title_short |
Ethyl Butyrate Synthesis Catalyzed by Lipases A and B from Candida antarctica Immobilized onto Magnetic Nanoparticles. Improvement of Biocatalysts’ Performance under Ultrasonic Irradiation |
title_full |
Ethyl Butyrate Synthesis Catalyzed by Lipases A and B from Candida antarctica Immobilized onto Magnetic Nanoparticles. Improvement of Biocatalysts’ Performance under Ultrasonic Irradiation |
title_fullStr |
Ethyl Butyrate Synthesis Catalyzed by Lipases A and B from Candida antarctica Immobilized onto Magnetic Nanoparticles. Improvement of Biocatalysts’ Performance under Ultrasonic Irradiation |
title_full_unstemmed |
Ethyl Butyrate Synthesis Catalyzed by Lipases A and B from Candida antarctica Immobilized onto Magnetic Nanoparticles. Improvement of Biocatalysts’ Performance under Ultrasonic Irradiation |
title_sort |
ethyl butyrate synthesis catalyzed by lipases a and b from candida antarctica immobilized onto magnetic nanoparticles. improvement of biocatalysts’ performance under ultrasonic irradiation |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/ijms20225807 https://doaj.org/article/6c33dbc28eb0455b96435cb6ef58b630 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
International Journal of Molecular Sciences, Vol 20, Iss 22, p 5807 (2019) |
op_relation |
https://www.mdpi.com/1422-0067/20/22/5807 https://doaj.org/toc/1422-0067 1422-0067 doi:10.3390/ijms20225807 https://doaj.org/article/6c33dbc28eb0455b96435cb6ef58b630 |
op_doi |
https://doi.org/10.3390/ijms20225807 |
container_title |
International Journal of Molecular Sciences |
container_volume |
20 |
container_issue |
22 |
container_start_page |
5807 |
_version_ |
1766267281492410368 |