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

Química Nova

Wilton Soares Cardoso¹  Flávio Dessaune Tardin²  Gabriella Peterlini Tavares²  Paula Viana Queiroz²  Samuel Sampaio Mota²  Maria Catarina Megumi Kasuya²  José Humberto De Queiroz² 

[1] ,Instituto Federal do Espírito Santo ES ,Brasil

关键词: biomass;    lignocellulosic;    energy crops;   

DOI  :  10.1590/S0100-40422013000500002

来源: SciELO

【 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】

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