Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 142, Issue -, Pages 559-563Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2019.09.130
Keywords
Groundnut shell lignin; Antibacterial; Antioxidant; Wool
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Food and agro-processing industries generate a huge quantity of solid waste which is rich in biomacromolecules like lignin. The extraction of lignin biomolecules can help in the efficient management of such waste along with the generation of wealth from the waste. The groundnut shells are one of the lignin-rich wastes which could be utilized for the extraction of lignin biomolecules. The present work investigates an innovative approach involving the application of extracted lignin biomolecules for the value-addition to wool fabrics. Metallic mordants were utilized to get a wash-fast attachment of lignin with wool. The change in the appearance of wool fabrics was analyzed using reflectance spectroscopy. The finished fabrics were further evaluated for the functional properties like antioxidant activity, antibacterial activity and UV protection. The functionalized wool fabrics displayed a variety of shades with different combinations of groundnut shell lignin (GSL) and mordant. Thermal stability of treated wool fabrics was analyzed by thermogravimetric analysis. The functionalized wool fabrics showed significant antioxidant activity (69.584.5%), antibacterial activity (79.786.3%) and UV protection (UPF ratings of 50(+)). (C) 2019 Elsevier B.V. All rights reserved.
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