Caracterização físico-química e hidrólise enzimática da casca da Myrciaria jabuticaba (Vell) Berg (jabuticaba Sabará)

Abstract

With the growing interest in the use of renewable natural resources for the production of biofuels, lignocellulosic materials has become a major target for researchers. The use of agro-industrial waste as a source of lignocellulosic materials is a viable alternative to the use of these low-cost and widely available materials. In this work were determined the physicochemical characteristics of jabuticaba shell, the material had a composition of 20.63% cellulose, 13.69% hemicellulose, lignin 24.33% and 41.34% of holocelulose. The amount of proteins, lipids, total sugars, moisture and ash were respectively in g / 100g bark: 9.82, 1.97, 66.85, 79.61 and 0.593. enzymatic hydrolysis with a combination of cellulase enzymes and β-glucosidase 20U / 10U in jabuticaba peel treated and not treated with sulfuric acid 1% was obtained (w / v) and evaluated enzymatic hydrolysis at different reaction times (24, 48, 72, 96 and 120 hours). It was found that the time 72 h showed the best results in expression sugars.