Relation of lignin and sugar yield from sugarcane bagasse degradation by sodium hydroxide

bagasse as waste is the one biomass that can be considered as lignin and sugar. Sugarcane bagasse contain lignin, hemicellulose and cellulose that can be converted into sugar and lignin through chemical pretreatment. In order to use sugarcane bagasse as a substrate for lignin and sugar production optimum conditions for sodium hydroxide hydrolysis of the bagasse were invested. Lignin and sugar are extracted together. The condition were varied in term of sodium hydroxide concentration (0.0-0.5%, w/v), reaction time (1-5h) and incubation temperature (100ºC). The efficiency of sodium hydroxide hydrolysis, were shown on the maximum weight loss percentage of 46.22% under the condition of 0.5% of NaOH at 100 ºC for 5h. The hydrolysate were maximum lignin, 69.18%, glucose, 1.24% and xylose, 12.70%. The sugarcane bagasse, hydrolysate and residue obtained were characterized by FT-IR. The results shown that C=C in aromatic skeletal of lignin was degraded from sugarcane bagasse and some peak indicate the presence of cellulose degradation products in liquid sugar. The lignin and lignin degradation were precipitated from solution and then epoxy production, and the sugar solution are then fermented into bioethanol and bio-plastic in the further.