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

页码：142 / 147

页数：6