The Synthesis of Binary DES and Its Application in the Pretreatment of Wool Keratin Extraction by the L-cysteine Redox Method
Deep Eutectic Solvent (DES) has extraordinary dissolving power for metal oxides, cellulose fibers and protein fibers, and it is an ideal green solvent for wool dissolution or pretreatment. Previous literature used L-cys/urea redox system to extract keratin from waste wool, but this method consumed a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-11-01
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| Series: | Journal of Natural Fibers |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/15440478.2021.2002776 |
| _version_ | 1797679997322788864 |
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| author | Yan Liu Xin Wang Yang Song Rong Li |
| author_facet | Yan Liu Xin Wang Yang Song Rong Li |
| author_sort | Yan Liu |
| collection | DOAJ |
| description | Deep Eutectic Solvent (DES) has extraordinary dissolving power for metal oxides, cellulose fibers and protein fibers, and it is an ideal green solvent for wool dissolution or pretreatment. Previous literature used L-cys/urea redox system to extract keratin from waste wool, but this method consumed an array of raw materials and heat energy. In this study, choline chloride (ChCl) and oxalic acid (OA·2H2O) were mixed to successfully synthesize binary DES that could make wool dissolution rate up to 60.2% and keratin extraction rate up to 30.74%. After pretreating wool with ChCl/OA·2H2O DES, the extraction process of L-cysteine redox method was optimized simultaneously. The results showed that after optimization, the reaction time was shortened, the dosage of urea was remarkably saved. Additionally, the extracted keratin retained the amide structure for practical application. |
| first_indexed | 2024-03-11T23:23:17Z |
| format | Article |
| id | doaj.art-edd55c774b1044e48cae93030c30fc42 |
| institution | Directory Open Access Journal |
| issn | 1544-0478 1544-046X |
| language | English |
| last_indexed | 2024-03-11T23:23:17Z |
| publishDate | 2022-11-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Natural Fibers |
| spelling | doaj.art-edd55c774b1044e48cae93030c30fc422023-09-20T13:25:58ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2022-11-011915108721088210.1080/15440478.2021.20027762002776The Synthesis of Binary DES and Its Application in the Pretreatment of Wool Keratin Extraction by the L-cysteine Redox MethodYan Liu0Xin Wang1Yang Song2Rong Li3Donghua UniversityDonghua UniversityDonghua UniversityDonghua UniversityDeep Eutectic Solvent (DES) has extraordinary dissolving power for metal oxides, cellulose fibers and protein fibers, and it is an ideal green solvent for wool dissolution or pretreatment. Previous literature used L-cys/urea redox system to extract keratin from waste wool, but this method consumed an array of raw materials and heat energy. In this study, choline chloride (ChCl) and oxalic acid (OA·2H2O) were mixed to successfully synthesize binary DES that could make wool dissolution rate up to 60.2% and keratin extraction rate up to 30.74%. After pretreating wool with ChCl/OA·2H2O DES, the extraction process of L-cysteine redox method was optimized simultaneously. The results showed that after optimization, the reaction time was shortened, the dosage of urea was remarkably saved. Additionally, the extracted keratin retained the amide structure for practical application.http://dx.doi.org/10.1080/15440478.2021.2002776deep eutectic solventswool keratinl-cysteine redox methodsynthesizeextractionpretreatment |
| spellingShingle | Yan Liu Xin Wang Yang Song Rong Li The Synthesis of Binary DES and Its Application in the Pretreatment of Wool Keratin Extraction by the L-cysteine Redox Method Journal of Natural Fibers deep eutectic solvents wool keratin l-cysteine redox method synthesize extraction pretreatment |
| title | The Synthesis of Binary DES and Its Application in the Pretreatment of Wool Keratin Extraction by the L-cysteine Redox Method |
| title_full | The Synthesis of Binary DES and Its Application in the Pretreatment of Wool Keratin Extraction by the L-cysteine Redox Method |
| title_fullStr | The Synthesis of Binary DES and Its Application in the Pretreatment of Wool Keratin Extraction by the L-cysteine Redox Method |
| title_full_unstemmed | The Synthesis of Binary DES and Its Application in the Pretreatment of Wool Keratin Extraction by the L-cysteine Redox Method |
| title_short | The Synthesis of Binary DES and Its Application in the Pretreatment of Wool Keratin Extraction by the L-cysteine Redox Method |
| title_sort | synthesis of binary des and its application in the pretreatment of wool keratin extraction by the l cysteine redox method |
| topic | deep eutectic solvents wool keratin l-cysteine redox method synthesize extraction pretreatment |
| url | http://dx.doi.org/10.1080/15440478.2021.2002776 |
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