Use of sorghum straw (Sorghum bicolor) for second generation ethanol production: pretreatment and enzymatic hydrolysis
AUTOR(ES)
Cardoso, Wilton Soares, Tardin, Flávio Dessaune, Tavares, Gabriella Peterlini, Queiroz, Paula Viana, Mota, Samuel Sampaio, Kasuya, Maria Catarina Megumi, Queiroz, José Humberto de
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2013
RESUMO
Agronomic biomass yields of forage sorghum BRS 655 presented similar results to other energy crops, producing 9 to 12.6 tons/ha (dry mass) of sorghum straw. The objective of this study was to evaluate the lignocellulosic part of this cultivar in terms of its potential in the different unit processes in the production of cellulosic ethanol, measuring the effects of pretreatment and enzymatic hydrolysis. Three types of pre-treatments for two reaction times were conducted to evaluate the characteristics of the pulp for subsequent saccharification. The pulp pretreated by alkali, and by acid followed by delignification, attained hydrolysis rates of over 90%.
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