scholarly journals Efficient hydrolysis and ethanol production from rice straw by pretreatment with organic acids and effluent of biogas plant

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50537-50545 ◽  
Author(s):  
Forough Momayez ◽  
Keikhosro Karimi ◽  
Shiva Karimi ◽  
Ilona Sárvári Horváth
Keyword(s):  
Enzymatic Hydrolysis ◽  
Organic Acids ◽  
Ethanol Production ◽  
Propionic Acid ◽  
Rice Straw ◽  
Biogas Plant

Effects of biogas effluent and its organic ingredients, i.e., acetic, butyric, lactic, and propionic acid, for the pretreatment of rice straw on enzymatic hydrolysis and ethanol production was studied.

Improved enzymatic hydrolysis and ethanol production by combined alkaline peroxide and ionic liquid‐water mixtures pretreatment of rice straw

2019 ◽  
Vol 94 (5) ◽  
pp. 1451-1459 ◽  
Author(s):  
Ying‐Ying Hong ◽  
Yu‐Tao Wang ◽  
Si‐Ming Zhu ◽  
Xiao‐Chun Luo ◽  
Shuang Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Enzymatic Hydrolysis ◽  
Ethanol Production ◽  
Rice Straw ◽  
Liquid Water ◽  
Alkaline Peroxide

Enhancing enzymatic hydrolysis and biogas production from rice straw by pretreatment with organic acids

2016 ◽  
Vol 87 ◽  
pp. 247-254 ◽  
Author(s):  
Plaimein Amnuaycheewa ◽  
Rotchanaphan Hengaroonprasan ◽  
Kittipong Rattanaporn ◽  
Suchata Kirdponpattara ◽  
Kraipat Cheenkachorn ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Organic Acids ◽  
Rice Straw ◽  
Biogas Production

scholarly journals Effect of Lignocellulose-Derived Inhibitors on Growth of and Ethanol Production by Growth-Arrested Corynebacterium glutamicum R

2007 ◽  
Vol 73 (7) ◽  
pp. 2349-2353 ◽  
Author(s):  
Shinsuke Sakai ◽  
Yoshiki Tsuchida ◽  
Shohei Okino ◽  
Osamu Ichihashi ◽  
Hideo Kawaguchi ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Organic Acids ◽  
Ethanol Production ◽  
Corynebacterium Glutamicum ◽  
Cellulosic Ethanol ◽  
Ethanol Productivity ◽  
Fermentation Inhibitors

ABSTRACT In cellulosic ethanol production, pretreatment of a biomass to facilitate enzymatic hydrolysis inevitably yields fermentation inhibitors such as organic acids, furans, and phenols. With representative inhibitors included in the medium at various concentrations, individually or in various combinations, ethanol production by Corynebacterium glutamicum R under growth-arrested conditions was investigated. In the presence of various inhibitors, the 62 to 100% ethanol productivity retained by the C. glutamicum R-dependent method far exceeded that retained by previously reported methods.

scholarly journals Generation of highly amenable cellulose-Iβ via selective delignification of rice straw using a reusable cyclic ether-assisted deep eutectic solvent system

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chiranjeevi Thulluri ◽  
Ravi Balasubramaniam ◽  
Harshad Ravindra Velankar
Keyword(s):  
Enzymatic Hydrolysis ◽  
Rice Straw ◽  
Deep Eutectic Solvent ◽  
Solvent System ◽  
Cyclic Ether ◽  
Cellulolytic Enzymes ◽  
Ammonium Bromide ◽  
Selective Delignification ◽  
Cellulose Iβ ◽  
Hydrolysis Of

AbstractCellulolytic enzymes can readily access the cellulosic component of lignocellulosic biomass after the removal of lignin during biomass pretreatment. The enzymatic hydrolysis of cellulose is necessary for generating monomeric sugars, which are then fermented into ethanol. In our study, a combination of a deep eutectic (DE) mixture (of 2-aminoethanol and tetra-n-butyl ammonium bromide) and a cyclic ether (tetrahydrofuran) was used for selective delignification of rice straw (RS) under mild conditions (100 °C). Pretreatment with DE-THF solvent system caused ~ 46% delignification whereas cellulose (~ 91%) and hemicellulose (~ 67%) recoveries remained higher. The new solvent system could be reused upto 10 subsequent cycles with the same effectivity. Interestingly, the DE-THF pretreated cellulose showed remarkable enzymatic hydrolysability, despite an increase in its crystallinity to 72.3%. Contrary to conventional pretreatments, we report for the first time that the enzymatic hydrolysis of pretreated cellulose is enhanced by the removal of lignin during DE-THF pretreatment, notwithstanding an increase in its crystallinity. The current study paves way for the development of newer strategies for biomass depolymerization with DES based solvents.

Enzymatic Hydrolysis of Ammonia-Treated Rice Straw

2003 ◽  
Vol 105 (1-3) ◽  
pp. 155-164 ◽  
Author(s):  
Betzabé Sulbarán-De-Ferrer ◽  
Marielena Aristiguieta ◽  
Bruce E. Dale ◽  
Alexis Ferrer ◽  
Graciela Ojeda-De-Rodriguez
Keyword(s):  
Enzymatic Hydrolysis ◽  
Rice Straw ◽  
Hydrolysis Of

Comparison of various pretreatments for ethanol production enhancement from solid residue after rumen fluid digestion of rice straw

2018 ◽  
Vol 247 ◽  
pp. 147-156 ◽  
Author(s):  
Haibo Zhang ◽  
Panyue Zhang ◽  
Jie Ye ◽  
Yan Wu ◽  
Jianbo Liu ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Rice Straw ◽  
Rumen Fluid ◽  
Solid Residue
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