Evaluación del pretratamiento con ácido sulfúrico diluido del pasto maralfalfa (Pennisetum glaucum x Pennisetum purpureum) para la producción de etanol.

the goliath grass (pennisetum glaucum x pennisetum purpureum) was pretreated with different sulfuric acid concentrations (0.8, 1.2 y 2.0% (w/w)) from low to high temperatures (110, 130, 150, 170 y 190 °c) followed by enzymatic hydrolysis and ssf of remaining solids. the maximum yield was 117 mg of ethanol/g biomass to 190 °c and 1.2 % (w/w) of sulfuric acid.