期刊
BIORESOURCE TECHNOLOGY
卷 101, 期 21, 页码 8348-8354出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.06.043
关键词
Lantana camara; Cellulosic ethanol; Dilute acid hydrolysis; Enzymatic hydrolysis; Fermentation
资金
- Department of Biotechnology (DBT), Ministry of Science and Technology, Government of India
Lantana camara contains 61.1% (w/w) holocellulose and can serve as a low-cost feedstock for bioethanol production. Acid hydrolysis (3.0%, v/v H2SO4, 120 degrees C for 45 min) of L. camara produced 187.14 mg/g total sugars along with fermentation inhibitors such as phenolics (8.2 mg/g), furfurals (5.1 mg/g) and hydroxy methyl furfurals (6.7 mg/g). Sequential application of overliming (pH 10.0) and activated charcoal (1.5%, w/v) adsorption was used to remove these toxic compounds from the acid hydrolysate. The acid-pre-treated biomass of L. camara was further delignified through combined pretreatment of sodium sulphite (5.0% w/v) and sodium chlorite (3.0% w/v), which resulted in about 87.2% lignin removal. The enzymatic hydrolysis of delignified cellulosic substrate showed 80.0% saccharification after 28 h incubation at 50 degrees C and pH 5.0. Fermentation of acid and enzymatic hydrolysates with Pichia stipitis and Saccharomyces cerevisiae gave rise to 5.16 and 17.7 g/L of ethanol with corresponding yields of 0.32 and 0.48 g/g after 24 and 16 h, respectively. (C) 2010 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据