Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solvent
Wax esters have been widely used in cosmetics and pharmaceutical products. Oleic acid wax esters can be used to replace spermaceti oil or jojoba oil. In this work, the acidic deep eutectic solvent (DES) composed of choline chloride and p-toluenesulfonic acid (1:4, mol/mol) was used as an efficient...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2022-03-01
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| Series: | Grasas y Aceites |
| Subjects: | |
| Online Access: | https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1928 |
| _version_ | 1818286724496752640 |
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| author | Z. Li W. Liu G. Yang |
| author_facet | Z. Li W. Liu G. Yang |
| author_sort | Z. Li |
| collection | DOAJ |
| description |
Wax esters have been widely used in cosmetics and pharmaceutical products. Oleic acid wax esters can be used to replace spermaceti oil or jojoba oil. In this work, the acidic deep eutectic solvent (DES) composed of choline chloride and p-toluenesulfonic acid (1:4, mol/mol) was used as an efficient recyclable catalyst for the synthesis of oleic acid-based liquid wax esters through an esterification reaction. The esterification conversion of cetyl alcohol reached 99.1% under the following optimal reaction conditions: 5% DES as catalyst, molar ratio of fatty acid to alcohol of 1.3:1 and reaction temperature of 70 oC for 3h. The catalyst recovery experiments showed that this low-price acidic DES catalyst could be reused five times with uniform activity. Moreover, DES-catalyzed solvent-free esterification could be applied in the preparation of other oleic acid-based wax esters and excellent conversions (> 96%) could be obtained under such mild conditions.
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| first_indexed | 2024-12-13T01:29:08Z |
| format | Article |
| id | doaj.art-2b6008ff0a044a4396198140266c087c |
| institution | Directory Open Access Journal |
| issn | 0017-3495 1988-4214 |
| language | English |
| last_indexed | 2024-12-13T01:29:08Z |
| publishDate | 2022-03-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Grasas y Aceites |
| spelling | doaj.art-2b6008ff0a044a4396198140266c087c2022-12-22T00:04:02ZengConsejo Superior de Investigaciones CientíficasGrasas y Aceites0017-34951988-42142022-03-0173110.3989/gya.1007202Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solventZ. Li0W. Liu1G. Yang2College of Food Science and Technology, Henan University of TechnologyCollege of Food Science and Technology, Henan University of TechnologyCollege of Food Science and Technology, Henan University of Technology Wax esters have been widely used in cosmetics and pharmaceutical products. Oleic acid wax esters can be used to replace spermaceti oil or jojoba oil. In this work, the acidic deep eutectic solvent (DES) composed of choline chloride and p-toluenesulfonic acid (1:4, mol/mol) was used as an efficient recyclable catalyst for the synthesis of oleic acid-based liquid wax esters through an esterification reaction. The esterification conversion of cetyl alcohol reached 99.1% under the following optimal reaction conditions: 5% DES as catalyst, molar ratio of fatty acid to alcohol of 1.3:1 and reaction temperature of 70 oC for 3h. The catalyst recovery experiments showed that this low-price acidic DES catalyst could be reused five times with uniform activity. Moreover, DES-catalyzed solvent-free esterification could be applied in the preparation of other oleic acid-based wax esters and excellent conversions (> 96%) could be obtained under such mild conditions. https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1928Liquid wax estersEsterificationDeep eutectic solventsSolvent-freep-toluenesulfonic acid |
| spellingShingle | Z. Li W. Liu G. Yang Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solvent Grasas y Aceites Liquid wax esters Esterification Deep eutectic solvents Solvent-free p-toluenesulfonic acid |
| title | Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solvent |
| title_full | Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solvent |
| title_fullStr | Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solvent |
| title_full_unstemmed | Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solvent |
| title_short | Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solvent |
| title_sort | solvent free synthesis of oleic acid based wax esters using recyclable acidic deep eutectic solvent |
| topic | Liquid wax esters Esterification Deep eutectic solvents Solvent-free p-toluenesulfonic acid |
| url | https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1928 |
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