Fumaric Acid Production from Alkali-Pretreated Corncob by Fed-Batch Simultaneous Saccharification and Fermentation Combined with Separated Hydrolysis and Fermentation at High Solids Loading

2016 ◽  
Vol 181 (2) ◽  
pp. 573-583 ◽  
Author(s):  
Xin Li ◽  
Jin Zhou ◽  
Shuiping Ouyang ◽  
Jia Ouyang ◽  
Qiang Yong
Keyword(s):  
Fumaric Acid ◽  
Acid Production ◽  
Simultaneous Saccharification And Fermentation ◽  
High Solids ◽  
Fed Batch ◽  
Solids Loading ◽  
High Solids Loading ◽  
Simultaneous Saccharification

Simultaneous Saccharification and Fermentation of Pretreated Eucalyptus grandis Under High Solids Loading

2017 ◽  
Vol 13 (3) ◽  
pp. 131-140 ◽  
Author(s):  
Shane McIntosh ◽  
Janice Palmer ◽  
Zhanying Zhang ◽  
William O.S. Doherty ◽  
Syed S. Yazdani ◽  
...  
Keyword(s):  
Simultaneous Saccharification And Fermentation ◽  
Eucalyptus Grandis ◽  
High Solids ◽  
Solids Loading ◽  
High Solids Loading ◽  
Simultaneous Saccharification

scholarly journals Enhanced sugars production with high conversion efficiency from alkali-pretreated sugarcane bagasse by enzymatic mixtures

BioResources ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 3839-3849 ◽  
Author(s):  
Yunyun Liu ◽  
Yunqi Cao ◽  
Qiang Yu ◽  
Jingliang Xu ◽  
Zhenhong Yuan
Keyword(s):  
Conversion Efficiency ◽  
Sugarcane Bagasse ◽  
High Solids ◽  
Fed Batch ◽  
Total Sugars ◽  
Solids Loading ◽  
High Solids Loading ◽  
Substrate Conversion ◽  
Pretreated Sugarcane Bagasse ◽  
Conversion Efficiencies

Complementary enzymes can considerably enhance the hydrolysis effectiveness of cellulase. The influence of hemicellulase supplementation on high solids saccharification of alkali-pretreated sugarcane bagasse was assessed. Hemicellulase addition of 1200 IU/g substrate with cellulase loading of 10 FPU/g substrate achieved high sugars yield with glucose and xylose conversion efficiency of 95.4% and 87.4%, respectively. To further improve the substrate conversion efficiency based on high sugars production, fed-batch hydrolysis was employed with high solids loading of 20% (w/v) to 25% (w/v). After 96 h hydrolysis with 25% solids loading at cellulase and hemicellulase loading of 20 FPU/g and 1200 IU/g substrate, respectively, the obtained highest total sugars was 242 g/L, with glucose and xylose conversion efficiencies of 98.6% and 94.9%, respectively. An increase in substrate digestibility upon supplementation of mixture enzymes with high sugars production can be realized in high solids fed-batch system with proper cellulase and hemicellulase synergism.

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