Utilização de líquidos iônicos para quebra da celulose no farelo de trigo e na celulose microcristalina para obtenção de açúcares fermentáveis

Abstract

Currently the demand for renewable energy sources and fuels has increased. At the same time, the search for reuse of agro-industrial waste is also underway. Allied to research with Ionic Liquids (ILs) to replace thermal solvents that can be harmful to the environment. In view of this, the present study was carried out to reuse agro-industrial wheat bran discharge to break down cellulose into smaller and fermentable sugars, updating the conventional method which is the use of strong acids by ILs. The wheat bran was separated into different particle sizes with the aid of Mesh series sieves, and physical-chemical characterization was carried out to evaluate other components present in the product that could impact the final yield. Using the acidified Ionic Liquid 3-methyl-1H-imidazol-3-ium-1yl-propane Sulfonate for the occurrence of breakdown of cellulose present in wheat bran in different granulometric sizes and also evaluating the occurrence of the Ionic Liquid with microcrystalline cellulose, maintaining the same time and temperature conditions. The highest yield was obtained from elimination using the 24 Mesh sieve opening, resulting in 5.75 g/L of minor sugars produced.