|
KMID : 1094720180230020228
|
|
Biotechnology and Bioprocess Engineering
2018 Volume.23 No. 2 p.228 ~ p.237
|
|
|
Optimization of Ionic Liquid Pretreatment of Mixed Softwood by Response Surface Methodology and Reutilization of Ionic Liquid from Hydrolysate
|
|
Trinh Ly Thi Phi
Lee Young-Ju
Lee Jae-Won
Lee Won-Heong
|
|
|
Abstract
|
|
|
|
We investigated the feasibility of producing bioethanol from mixed softwood pretreated with the ionic liquid 1-butyl-3-methylimidazolium acetate ([Bmim]Ac). The optimal pretreatment conditions were determined by response surface methodology to be 100°C for 15 h, and the fermentable sugar yield was estimated to be 92.5%. Efficient pretreatment of softwood was maintained even after reutilizing [Bmim]Ac up to four times. Through the enzymatic saccharification and subsequent fermentation, bioethanol was produced with 0.42 g/g of yield and 0.24 g/L/h of productivity, which clearly suggests that efficient and economical bioethanol production can be achieved by optimizing pretreatment processes and reutilizing ionic liquid.
|
|
|
KEYWORD
|
|
|
1-Butyl-3-methylimidazolium acetate, bioethanol, ionic liquid, pretreatment, recycling, response surface methodology
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
 
|