In El-Zawawy and associates research [22] it was determined, that the amount of obtained ethyl alcohol is dependent on the type of pretreatment and lignocellulose material. In case of rice straw, subjected to pulping process and the application of 10% NaOH, 7.61 g/L of ethanol was obtained, while for the material processed with water, the ethanol concentration was 5.72 g/L.