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

Quimica nova

Tardin, Flávio Dessaune¹  Cardoso, Wilton Soares²  Tavares, Gabriella Peterlini³  Queiroz, Paula Viana³  Kasuya, Maria Catarina Megumi³  Queiroz, José Humberto de³  Mota, Samuel Sampaio³ 

[1] Embrapa Milho e Sorgo, Sete Lagoas, Brasil;Instituto Federal do Espírito Santo, Brasil;Universidade Federal de Viçosa, Viçosa, Brasil

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 biomassyields 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 thisstudy was to evaluate the lignocellulosic part of this cultivar in terms ofits potential in the different unit processes in the production of cellulosicethanol, measuring the effects of pretreatment and enzymatic hydrolysis. Threetypes of pre-treatments for two reaction times were conducted to evaluate thecharacteristics of the pulp for subsequent saccharification. The pulp pretreatedby alkali, and by acid followed by delignification, attained hydrolysis ratesof over 90%.

【 授权许可】

CC BY