The researchers aimed to remove hemicellulose and lignin from corncob using chemical treatments and study the effects on its composition and properties. They used sulfuric acid and sodium hydroxide to dissolve hemicellulose and lignin. Acid treatment broke down hemicellulose, changing the corncob's structure, while alkaline treatment removed lignin. The treatments increased the surface area of cellulose fibers. Acid treatment dissolved around 42.6% of the biomass, while alkaline treatment dissolved about 20.9%. Hemicellulose hydrolysis released sugars, and lignin provided more energy per mass.