Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics
Linoleic acid (LA) is converted to per-carboxylic acid catalyzed by an immobilized lipase from Candida antarctica (Novozym 435). This per-carboxylic acid is only intermediate and epoxidized itself in good yields and almost without consecutive reactions. Monoepoxide linoleic acid 9(12)-10(13)-monoepo...
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fthindawi:oai:hindawi.com:10.1155/2012/693848 2023-05-15T13:56:45+02:00 Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics Jumat Salimon Nadia Salih Bashar Mudhaffar Abdullah 2012 https://doi.org/10.1155/2012/693848 en eng Journal of Biomedicine and Biotechnology https://doi.org/10.1155/2012/693848 Copyright © 2012 Jumat Salimon et al. Biophysics Research Article 2012 fthindawi https://doi.org/10.1155/2012/693848 2019-05-26T00:17:08Z Linoleic acid (LA) is converted to per-carboxylic acid catalyzed by an immobilized lipase from Candida antarctica (Novozym 435). This per-carboxylic acid is only intermediate and epoxidized itself in good yields and almost without consecutive reactions. Monoepoxide linoleic acid 9(12)-10(13)-monoepoxy 12(9)-octadecanoic acid (MEOA) was optimized using D-optimal design. At optimum conditions, higher yield% (82.14) and medium oxirane oxygen content (OOC) (4.91%) of MEOA were predicted at 15 μL of H2O2, 120 mg of Novozym 435, and 7 h of reaction time. In order to develop better-quality biolubricants, pour point (PP), flash point (FP), viscosity index (VI), and oxidative stability (OT) were determined for LA and MEOA. The results showed that MEOA exhibited good low-temperature behavior with PP of −41°C. FP of MEOA increased to 128°C comparing with 115°C of LA. In a similar fashion, VI for LA was 224 generally several hundred centistokes (cSt) more viscous than MEOA 130.8. The ability of a substance to resist oxidative degradation is another important property for biolubricants. Therefore, LA and MEOA were screened to measure their OT which was observed at 189 and 168°C, respectively. Article in Journal/Newspaper Antarc* Antarctica Hindawi Publishing Corporation Journal of Biomedicine and Biotechnology 2012 1 11 |
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Biophysics Jumat Salimon Nadia Salih Bashar Mudhaffar Abdullah Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics |
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Biophysics |
description |
Linoleic acid (LA) is converted to per-carboxylic acid catalyzed by an immobilized lipase from Candida antarctica (Novozym 435). This per-carboxylic acid is only intermediate and epoxidized itself in good yields and almost without consecutive reactions. Monoepoxide linoleic acid 9(12)-10(13)-monoepoxy 12(9)-octadecanoic acid (MEOA) was optimized using D-optimal design. At optimum conditions, higher yield% (82.14) and medium oxirane oxygen content (OOC) (4.91%) of MEOA were predicted at 15 μL of H2O2, 120 mg of Novozym 435, and 7 h of reaction time. In order to develop better-quality biolubricants, pour point (PP), flash point (FP), viscosity index (VI), and oxidative stability (OT) were determined for LA and MEOA. The results showed that MEOA exhibited good low-temperature behavior with PP of −41°C. FP of MEOA increased to 128°C comparing with 115°C of LA. In a similar fashion, VI for LA was 224 generally several hundred centistokes (cSt) more viscous than MEOA 130.8. The ability of a substance to resist oxidative degradation is another important property for biolubricants. Therefore, LA and MEOA were screened to measure their OT which was observed at 189 and 168°C, respectively. |
format |
Article in Journal/Newspaper |
author |
Jumat Salimon Nadia Salih Bashar Mudhaffar Abdullah |
author_facet |
Jumat Salimon Nadia Salih Bashar Mudhaffar Abdullah |
author_sort |
Jumat Salimon |
title |
Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics |
title_short |
Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics |
title_full |
Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics |
title_fullStr |
Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics |
title_full_unstemmed |
Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics |
title_sort |
production of chemoenzymatic catalyzed monoepoxide biolubricant: optimization and physicochemical characteristics |
publisher |
Journal of Biomedicine and Biotechnology |
publishDate |
2012 |
url |
https://doi.org/10.1155/2012/693848 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
https://doi.org/10.1155/2012/693848 |
op_rights |
Copyright © 2012 Jumat Salimon et al. |
op_doi |
https://doi.org/10.1155/2012/693848 |
container_title |
Journal of Biomedicine and Biotechnology |
container_volume |
2012 |
container_start_page |
1 |
op_container_end_page |
11 |
_version_ |
1766264339179765760 |