Potential of Tunisian Alfa (Stipa tenassicima) fibers for energy recovery to 2G bioethanol: Study of pretreatment, enzymatic saccharification and fermentation
메타 데이터
바이오화학분류
바이오플라스틱
플라스틱
바이오정밀화학
용매
화학제품
연료
화장품용 기능성소재
계면활성제⁄증점제
의료용 화학소재
식품첨가제
논문
Potential of Tunisian Alfa (Stipa tenassicima) fibers for energy recovery to 2G bioethanol: Study of pretreatment, enzymatic saccharification and fermentation
학술지
Biomass & bioenergy
저자명
Zaafouri, K.; Ziadi, M.; Ben Farah, R.; Farid, M.; Hamdi, M.; Regaya, I.
초록
The aim of this study is to optimize the pretreatment of Alfa fibers Stipa tenacissima for the production of bioethanol second generation. The Alfa is a complex lignocellulosic substrate. It is mainly composed by cellulose (49.09% +/- 0.015), hemicellulose (18.20% +/- 0.3) and lignins (16.25% +/- 0.475). In the current study, process of production of the biofuel was carried out through three successive steps: a pretreatment performed with dilute acid (3%) at 120 <SUP>o</SUP>C during 30 min, an enzymatic saccharification by a commercial enzyme (AP2) and fermentation steps. Dilute acid pretreatment of the biomass resulted in an efficient degradation of cellulose and hemicellulose by increasing the total sugars (39.951 g/L) and reducing sugars (22.36 g/L) yields. These yields were increased after enzymatic saccharification to reach 22.7 g/L of reducing sugars. The fermentation of the aforementioned hydrolysate was efficient with ethanol production being 36.36% of theoretical maximum.