- COMPARISON OF ENZYMATIC REACTIVITY OF CORN STOVER SOLIDS PREPARED BY DILUTE ACID, AFEX™, AND IONIC LIQUID PRETREATMENTS

2015 ◽  
pp. 208-235
Keyword(s):  
Ionic Liquid ◽  
Corn Stover ◽  
Dilute Acid

scholarly journals Comparison of enzymatic reactivity of corn stover solids prepared by dilute acid, AFEX™, and ionic liquid pretreatments

2014 ◽  
Vol 7 (1) ◽  
pp. 71 ◽  
Author(s):  
Xiadi Gao ◽  
Rajeev Kumar ◽  
Seema Singh ◽  
Blake A Simmons ◽  
Venkatesh Balan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Corn Stover ◽  
Dilute Acid

scholarly journals A comparative study of ethanol production using dilute acid, ionic liquid and AFEX™ pretreated corn stover

2014 ◽  
Vol 7 (1) ◽  
pp. 72 ◽  
Author(s):  
Nirmal Uppugundla ◽  
Leonardo da Costa Sousa ◽  
Shishir PS Chundawat ◽  
Xiurong Yu ◽  
Blake Simmons ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Comparative Study ◽  
Ethanol Production ◽  
Corn Stover ◽  
Dilute Acid ◽  
Pretreated Corn Stover

Combination of dilute acid and ionic liquid pretreatments of sugarcane bagasse for glucose by enzymatic hydrolysis

2013 ◽  
Vol 48 (12) ◽  
pp. 1942-1946 ◽  
Author(s):  
Li-Qun Jiang ◽  
Zhen Fang ◽  
Xing-Kang Li ◽  
Jia Luo ◽  
Suet-Pin Fan
Keyword(s):  
Ionic Liquid ◽  
Enzymatic Hydrolysis ◽  
Sugarcane Bagasse ◽  
Dilute Acid

scholarly journals Relationship between sugarcane culm and leaf biomass composition and saccharification efficiency

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
K. Hodgson-Kratky ◽  
G. Papa ◽  
A. Rodriguez ◽  
V. Stavila ◽  
B. Simmons ◽  
...  
Keyword(s):  
Cell Wall ◽  
Ionic Liquid ◽  
Lignocellulosic Biomass ◽  
Plant Cell Wall ◽  
Biomass Composition ◽  
Leaf Biomass ◽  
Dilute Acid ◽  
Sugarcane Varieties ◽  
Saccharification Efficiency ◽  
G Ratio

Abstract Background Lignocellulosic biomass is recognized as a promising renewable feedstock for the production of biofuels. However, current methods for converting biomass into fermentable sugars are considered too expensive and inefficient due to the recalcitrance of the secondary cell wall. Biomass composition can be modified to create varieties that are efficiently broken down to release cell wall sugars. This study focused on identifying the key biomass components influencing plant cell wall recalcitrance that can be targeted for selection in sugarcane, an important and abundant source of biomass. Results Biomass composition and the amount of glucan converted into glucose after saccharification were measured in leaf and culm tissues from seven sugarcane genotypes varying in fiber composition after no pretreatment and dilute acid, hydrothermal and ionic liquid pretreatments. In extractives-free sugarcane leaf and culm tissue, glucan, xylan, acid-insoluble lignin (AIL) and acid-soluble lignin (ASL) ranged from 20 to 32%, 15% to 21%, 14% to 20% and 2% to 4%, respectively. The ratio of syringyl (S) to guaiacyl (G) content in the lignin ranged from 1.5 to 2.2 in the culm and from 0.65 to 1.1 in the leaf. Hydrothermal and dilute acid pretreatments predominantly reduced xylan content, while the ionic liquid (IL) pretreatment targeted AIL reduction. The amount of glucan converted into glucose after 26 h of pre-saccharification was highest after IL pretreatment (42% in culm and 63.5% in leaf) compared to the other pretreatments. Additionally, glucan conversion in leaf tissues was approximately 1.5-fold of that in culm tissues. Percent glucan conversion varied between genotypes but there was no genotype that was superior to all others across the pretreatment groups. Path analysis revealed that S/G ratio, AIL and xylan had the strongest negative associations with percent glucan conversion, while ASL and glucan content had strong positive influences. Conclusion To improve saccharification efficiency of lignocellulosic biomass, breeders should focus on reducing S/G ratio, xylan and AIL content and increasing ASL and glucan content. This will be key for the development of sugarcane varieties for bioenergy uses.

Influence of physico-chemical changes on enzymatic digestibility of ionic liquid and AFEX pretreated corn stover

2011 ◽  
Vol 102 (13) ◽  
pp. 6928-6936 ◽  
Author(s):  
Chenlin Li ◽  
Gang Cheng ◽  
Venkatesh Balan ◽  
Michael S. Kent ◽  
Markus Ong ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Corn Stover ◽  
Enzymatic Digestibility ◽  
Chemical Changes ◽  
Pretreated Corn Stover ◽  
Physico Chemical
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