Analysis of the properties of a novel natural fibre extracted from pumpkin plant stalks: A sustainable alternative for lightweight applications

Abstract

This study explores the characterization and potential applications of cellulose fibre extracted from pumpkin stems by the water retting process. X-ray diffraction (XRD) analysis revealed distinct diffraction peaks at 13.2° and 16.8° (2θ), indicating a well-ordered crystalline structure with a crystallinity index of 24.3 %. Fourier-transform infrared (FTIR) spectroscopy identified characteristic peaks at 1430 cm−1 (O-H stretching), 1510 cm−1 (C-H stretching), 1630 cm−1 (C = O stretching), and 1055 cm−1 (C-O-C glycosidic linkage vibrations) confirming the presence of cellulose with vital functional groups. Scanning Electron Microscopy (SEM), analysis revealed a fibrous and porous structure with smooth, cylindrical fibres. The study also assessed the antibacterial properties of pumpkin cellulose fibre against Staphylococcus aureus and Enterococcus faecalis, demonstrating significant inhibitory effects. These findings suggest its potential in healthcare applications, including wound dressings and lightweight structural and medical textiles.