Eco-Friendly Extraction of Curcumin from Turmeric and Dyeability of Textile Fibers
Classical and modern methods are used to release curcumin by degrading the polysaccharides found in the turmeric powder matrix. Classical methods use chemicals as acids (HCl, H<sub>2</sub>SO<sub>4</sub>, CH<sub>3</sub>COOH), oxidants (H<sub>2</sub>O<...
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MDPI AG
2025-06-01
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| author | Vasilica Popescu Ana-Diana Alexandrescu Gabriel Popescu Viorica Vasilache |
| author_facet | Vasilica Popescu Ana-Diana Alexandrescu Gabriel Popescu Viorica Vasilache |
| author_sort | Vasilica Popescu |
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| description | Classical and modern methods are used to release curcumin by degrading the polysaccharides found in the turmeric powder matrix. Classical methods use chemicals as acids (HCl, H<sub>2</sub>SO<sub>4</sub>, CH<sub>3</sub>COOH), oxidants (H<sub>2</sub>O<sub>2</sub>, kojic acid), and enzymes (amylase type) that can degrade amylose and amylopectin from starch. The modern applied methods consist of the degradation of the polysaccharides in the turmeric powder during eco-friendly processes assisted by ultrasound or microwaves. The extraction medium can consist of only water, water with a solvent, and/or an oxidizing agent. The presence of curcumin in turmeric powder is confirmed by FTIR analysis. The UV–VIS analysis of the extracts allows the determination of the efficiency of modern extraction processes. The release of curcumin from turmeric is highlighted quantitatively by colorimetric measurements for the obtained extracts, using a portable DataColor spectrophotometer. The comparison of the results leads to the conclusion that microwave-assisted extractions are the most effective. These extracts are able to dye many types of textile fibers: wool, cotton, hemp, silk, polyacrylonitrile, polyamide, polyester, and cellulose acetate. CIELab and color strength (K/S) measurements indicate that the most intense yellow colors are obtained on polyacrylonitrile (b* = 86.32, K/S = 15.14) and on cellulose acetate (b* = 90.40, K/S = 14.17). |
| format | Article |
| id | doaj-art-d04cda28665c470082e92cb252fcd7b6 |
| institution | OA Journals |
| issn | 2079-6439 |
| language | English |
| publishDate | 2025-06-01 |
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| series | Fibers |
| spelling | doaj-art-d04cda28665c470082e92cb252fcd7b62025-08-20T02:21:01ZengMDPI AGFibers2079-64392025-06-011367310.3390/fib13060073Eco-Friendly Extraction of Curcumin from Turmeric and Dyeability of Textile FibersVasilica Popescu0Ana-Diana Alexandrescu1Gabriel Popescu2Viorica Vasilache3Department of Chemical Engineering in Textiles and Leather, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, RomaniaDepartment of Chemical Engineering in Textiles and Leather, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, RomaniaDepartment of Mechanical Engineering, Mechatronics and Robotics, “Gheorghe Asachi” Technical University of Iași, 700050 Iasi, RomaniaArheoinvest Center, Department of Exact Sciences and Natural Sciences, Interdisciplinary Research Institute, “Alexandru Ioan Cuza” University, 11 Carol I Blvd., 700506 Iasi, RomaniaClassical and modern methods are used to release curcumin by degrading the polysaccharides found in the turmeric powder matrix. Classical methods use chemicals as acids (HCl, H<sub>2</sub>SO<sub>4</sub>, CH<sub>3</sub>COOH), oxidants (H<sub>2</sub>O<sub>2</sub>, kojic acid), and enzymes (amylase type) that can degrade amylose and amylopectin from starch. The modern applied methods consist of the degradation of the polysaccharides in the turmeric powder during eco-friendly processes assisted by ultrasound or microwaves. The extraction medium can consist of only water, water with a solvent, and/or an oxidizing agent. The presence of curcumin in turmeric powder is confirmed by FTIR analysis. The UV–VIS analysis of the extracts allows the determination of the efficiency of modern extraction processes. The release of curcumin from turmeric is highlighted quantitatively by colorimetric measurements for the obtained extracts, using a portable DataColor spectrophotometer. The comparison of the results leads to the conclusion that microwave-assisted extractions are the most effective. These extracts are able to dye many types of textile fibers: wool, cotton, hemp, silk, polyacrylonitrile, polyamide, polyester, and cellulose acetate. CIELab and color strength (K/S) measurements indicate that the most intense yellow colors are obtained on polyacrylonitrile (b* = 86.32, K/S = 15.14) and on cellulose acetate (b* = 90.40, K/S = 14.17).https://www.mdpi.com/2079-6439/13/6/73curcuminturmeric powderamyloseamylopectinstarchiodometric method |
| spellingShingle | Vasilica Popescu Ana-Diana Alexandrescu Gabriel Popescu Viorica Vasilache Eco-Friendly Extraction of Curcumin from Turmeric and Dyeability of Textile Fibers Fibers curcumin turmeric powder amylose amylopectin starch iodometric method |
| title | Eco-Friendly Extraction of Curcumin from Turmeric and Dyeability of Textile Fibers |
| title_full | Eco-Friendly Extraction of Curcumin from Turmeric and Dyeability of Textile Fibers |
| title_fullStr | Eco-Friendly Extraction of Curcumin from Turmeric and Dyeability of Textile Fibers |
| title_full_unstemmed | Eco-Friendly Extraction of Curcumin from Turmeric and Dyeability of Textile Fibers |
| title_short | Eco-Friendly Extraction of Curcumin from Turmeric and Dyeability of Textile Fibers |
| title_sort | eco friendly extraction of curcumin from turmeric and dyeability of textile fibers |
| topic | curcumin turmeric powder amylose amylopectin starch iodometric method |
| url | https://www.mdpi.com/2079-6439/13/6/73 |
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