Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy
This study introduces an environmentally friendly method for dyeing silk using pigments extracted from young teak leaves (Tectona grandis L.), offering a sustainable solution to reduce pollution from synthetic dyes while repurposing agricultural waste. Ethanol (95 %) extraction of teak leaves showed...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Current Research in Green and Sustainable Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266608652500013X |
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| author | Nattadon Rungruangkitkrai Rattanaphol Mongkholrattanasit Peeraya Ounu Nawarat Chartvivatpornchai Jirachaya Boonyarit Kamlai Laohaphatanaleart Rungsima Chollakup |
| author_facet | Nattadon Rungruangkitkrai Rattanaphol Mongkholrattanasit Peeraya Ounu Nawarat Chartvivatpornchai Jirachaya Boonyarit Kamlai Laohaphatanaleart Rungsima Chollakup |
| author_sort | Nattadon Rungruangkitkrai |
| collection | DOAJ |
| description | This study introduces an environmentally friendly method for dyeing silk using pigments extracted from young teak leaves (Tectona grandis L.), offering a sustainable solution to reduce pollution from synthetic dyes while repurposing agricultural waste. Ethanol (95 %) extraction of teak leaves showed a rich in polyphenols and quinonoid compounds, which yielded a reddish-brown pigment suitable for dyeing. Key dyeing conditions, including temperature (30–100 °C), duration (10–60 min), and pH (3–11), were optimized to maximize color absorption and uniformity. Color performance was evaluated through spectrophotometry (L∗, a∗, b∗ values) and K/S measurements. Three mordants including alum (aluminum potassium sulfate), ferrous sulfate, and stannous chloride were tested using pre-, meta-, and post-mordanting techniques. Pre-mordanting with ferrous sulfate delivered the darkest shades and highest color intensity, along with excellent wash and light fastness (rated ≥4 on the Grey scale). FTIR spectroscopy revealed stable dye-mordant complexes formed through molecular coordination. The dyed silk exhibited mild antibacterial properties against Staphylococcus aureus and Escherichia coli in agar well diffusion tests, though inhibition zones were modest (<0.20 cm), likely due to residual bioactive compounds. These results position teak leaf extract as a multifunctional natural dye, combining aesthetic, ecological, and hygienic advantages. By aligning with circular economy principles, this approach presents a viable pathway for sustainable textile production. Nonetheless, future research should focus on optimizing extraction methods, boosting antimicrobial efficacy, and scaling the process for industrial applications. |
| format | Article |
| id | doaj-art-512d69a4260741de944831e7a07f7d3c |
| institution | OA Journals |
| issn | 2666-0865 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Green and Sustainable Chemistry |
| spelling | doaj-art-512d69a4260741de944831e7a07f7d3c2025-08-20T02:35:57ZengElsevierCurrent Research in Green and Sustainable Chemistry2666-08652025-01-011010045710.1016/j.crgsc.2025.100457Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacyNattadon Rungruangkitkrai0Rattanaphol Mongkholrattanasit1Peeraya Ounu2Nawarat Chartvivatpornchai3Jirachaya Boonyarit4Kamlai Laohaphatanaleart5Rungsima Chollakup6Department of Textile Science, Faculty of Agro-Industry, Kasetsart University, Bangkok, 10900, ThailandDepartment of Textile Chemistry Technology, Faculty of Industrial Textiles and Fashion Design, Rajamangala University of Technology Phra Nakhon, Bangkok, 10300, ThailandKasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, Bangkok, 10900, ThailandDepartment of Textile Science, Faculty of Agro-Industry, Kasetsart University, Bangkok, 10900, ThailandKasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, Bangkok, 10900, ThailandRattanakosin International College of Creative Entrepreneurship, Rajamangala University of Technology Rattanakosin, Nakhon Pathom, 73170, ThailandKasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, Bangkok, 10900, Thailand; Corresponding author. Kasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, 50 Ngam Wong Wan Rd., Chatujak, Bangkok, 10900, Thailand.This study introduces an environmentally friendly method for dyeing silk using pigments extracted from young teak leaves (Tectona grandis L.), offering a sustainable solution to reduce pollution from synthetic dyes while repurposing agricultural waste. Ethanol (95 %) extraction of teak leaves showed a rich in polyphenols and quinonoid compounds, which yielded a reddish-brown pigment suitable for dyeing. Key dyeing conditions, including temperature (30–100 °C), duration (10–60 min), and pH (3–11), were optimized to maximize color absorption and uniformity. Color performance was evaluated through spectrophotometry (L∗, a∗, b∗ values) and K/S measurements. Three mordants including alum (aluminum potassium sulfate), ferrous sulfate, and stannous chloride were tested using pre-, meta-, and post-mordanting techniques. Pre-mordanting with ferrous sulfate delivered the darkest shades and highest color intensity, along with excellent wash and light fastness (rated ≥4 on the Grey scale). FTIR spectroscopy revealed stable dye-mordant complexes formed through molecular coordination. The dyed silk exhibited mild antibacterial properties against Staphylococcus aureus and Escherichia coli in agar well diffusion tests, though inhibition zones were modest (<0.20 cm), likely due to residual bioactive compounds. These results position teak leaf extract as a multifunctional natural dye, combining aesthetic, ecological, and hygienic advantages. By aligning with circular economy principles, this approach presents a viable pathway for sustainable textile production. Nonetheless, future research should focus on optimizing extraction methods, boosting antimicrobial efficacy, and scaling the process for industrial applications.http://www.sciencedirect.com/science/article/pii/S266608652500013XNatural dyeTeak leavesSilk fabricMordantAntibacterial activitySustainable textiles |
| spellingShingle | Nattadon Rungruangkitkrai Rattanaphol Mongkholrattanasit Peeraya Ounu Nawarat Chartvivatpornchai Jirachaya Boonyarit Kamlai Laohaphatanaleart Rungsima Chollakup Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy Current Research in Green and Sustainable Chemistry Natural dye Teak leaves Silk fabric Mordant Antibacterial activity Sustainable textiles |
| title | Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy |
| title_full | Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy |
| title_fullStr | Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy |
| title_full_unstemmed | Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy |
| title_short | Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy |
| title_sort | enhancing sustainable silk textiles optimization of teak leaf extract dyeing and antibacterial efficacy |
| topic | Natural dye Teak leaves Silk fabric Mordant Antibacterial activity Sustainable textiles |
| url | http://www.sciencedirect.com/science/article/pii/S266608652500013X |
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