<![CDATA[Background: Corn husks are an underutilized agricultural waste containing 44.08% cellulose, making them a promising raw material for sodium carboxymethyl cellulose (NaCMC) production.Objective: This study investigated the effect of different isopropanol–isobutanol solvent ratios (5:95, 20:80, and 35:65) on the physicochemical properties of NaCMC synthesized from corn husks and identified the optimum solvent ratio.Method: α-Cellulose was obtained through delignification with 4% NaOH followed by bleaching with 5% NaOCl. Alkalization was performed using 30% NaOH before carboxymethylation with sodium monochloroacetate (NaMCA). The resulting NaCMC was characterized for organoleptic properties, pH, moisture content, bulk density, yield, melting point, viscosity, degree of substitution, FTIR spectra, and SEM morphology. Data were analyzed using SPSS 23.0 at a 95% confidence level.Results: Solvent ratio significantly affected most physicochemical properties of NaCMC, except solubility, pH, melting point (20:80 vs. 35:65), and degree of substitution (5:95 vs. 35:65). The 20:80 isopropanol–isobutanol ratio produced NaCMC with characteristics most comparable to commercial NaCMC.Conclusion: The isopropanol–isobutanol solvent ratio significantly influenced the physicochemical characteristics of corn husk NaCMC, with the 20:80 ratio producing the most favorable product.]]>
Copyrights © 2026
