Pretreatment optimization of Sorghum pioneer biomass for bioethanol production and its scale-up

被引：23
|
作者：
Koradiya, Manoj [1 ]
Duggirala, Srinivas [1 ]
Tipre, Devayani [2 ]
Dave, Shailesh [2 ]
机构：
[1] Gujarat Vidhyapith, Biogas Res Ctr, Dept Microbiol, Sadra 382424, Gujarat, India
[2] Gujarat Univ, Sch Sci, Dept Microbiol & Biotechnol, Ahmadabad 380009, Gujarat, India
来源：
BIORESOURCE TECHNOLOGY | 2016年 / 199卷
关键词：
Acid hydrolysis; Bioethanol; Box Behnken Design; Saccharification; Sorghum stover biomass; SWEET SORGHUM; ETHANOL-PRODUCTION; ACID PRETREATMENT; BAGASSE; STRAW; SACCHARIFICATION; FEEDSTOCK;
D O I：
10.1016/j.biortech.2015.08.156
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Based on one parameter at a time, saccharification of delignified sorghum biomass by 4% and 70% v/v sulfuric acid resulted in maximum 30.8 and 33.8 g% sugar production from biomass respectively. The Box Behnken Design was applied for further optimization of acid hydrolysis. As a result of the designed experiment 36.3 g% sugar production was achieved when 3% v/v H2SO4 treatment given for 60 min at 180 degrees C. The process was scaled-up to treat 2 kg of biomass. During the screening of yeast cultures, isolate C, MK-I and N were found to be potent ethanol producers from sorghum hydrolyzate. Culture MK-I was the best so used for scale up of ethanol production up to 25 L capacity, which gave a yield of 0.49 g ethanol/g sugar from hydrolyzate obtained from 2 kg of sorghum biomass. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：142 / 147
页数：6
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