Isolation and characterization of cellulose from spent ground coffee (Coffea Arabica L.): A comparative study.

This study compares several methods, such as sodium chlorite, nitric acid, and hydrogen peroxide treatments with alkali pre-treatments, for efficiency of extracting cellulose from spent ground coffee. The extracted cellulose was characterized by Fourier transform infrared spectroscopy (FTIR), x-ray diffractometry (XRD), thermogravimetric analysis (TGA), colour analysis, chemical composition, and particle size analysis. FTIR confirmed the removal of non-cellulosic components from coffee, which correlates with chemical composition and colour analysis results.