Use of sorghum straw (Sorghum bicolor) for second generation ethanol production: pretreatment and enzymatic hydrolysis

Química Nova

Embrapa Milho e Sorgo, Sete Lagoas, Brasil¹  Tavares, Gabriella Peterlini¹  Queiroz, Paula Viana¹  Cardoso, Wilton Soares¹  Kasuya, Maria Catarina Megumi¹  Instituto Federal do Espírito Santo, Brasil¹  Tardin, Flávio Dessaune¹  Universidade Federal de Viçosa, Viçosa, Brasil¹  Queiroz, José Humberto de¹  Mota, Samuel Sampaio¹ 

关键词: biomass;    lignocellulosic;    energy crops.;   

DOI  :  10.1590/S0100-40422013000500002

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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%.

【 授权许可】

Unknown