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Article Abstract
Background/objectives: The use of natural colourants is gaining attention due to their biocompatibility and functional benefits. This study introduces a different approach using turmeric ( L.) dye extract combined with chitosan to significantly enhance the antibacterial and UV-shielding properties of silk.
Methods: The turmeric dye's chemical composition was analyzed using liquid chromatography mass spectrometry (LC-MS), UV-visible spectroscopy, and Fourier-transform infrared spectroscopy (FTIR). The dyed silk's colourfastness was tested through rubbing, washing, and light exposure.
Results: The chitosan-mordanted silk showed strong antibacterial activity against () and (), as well as antifungal activity against (). It also demonstrated a high ultraviolet protection factor (UPF). For comparison, alum-mordant was used, and chitosan proved more effective. Beyond its use as a dye, turmeric is renowned for its medicinal properties. Its antioxidant, anticancer, and anti-inflammatory properties have been extensively researched, which are primarily linked to its curcuminoid compounds. Turmeric is used in traditional medication to treat digestive issues, arthritis, and skin diseases.
Conclusions: This work underscores the innovative use of plant-based dye extracts and natural mordants like chitosan as a sustainable alternative to conventional metallic mordants, paving the way for the evolution of bioactive silk with improved functional properties.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11728638 | PMC |
| http://dx.doi.org/10.3390/pharmaceutics16121510 | DOI Listing |
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