Functional Bio-based Starch Films for Potential Textile Applications

Abstract The integration of circular economy principles into industrial processes is essential for achieving more sustainable materials. This study aimed to develop functional starch-based films by exploring the bioactive properties of vine shoot trimmings (VST) and spent hops (SH). Aqueous extraction of VST and SH (dried and fresh) was performed at 3%, 5% and 10% biomass at 50°C. The resulting extract was mixed with cationized starch and glycerol to prepare the films formulations, followed by drying at 65oC. All the films presented an excellent UPF of 50+ and water repellence properties. Low values of antioxidant activity were detected. The obtained results represent an opportunity to produce functional textiles, including leisurewear and outdoor sports garments and for footwear applications.