Optimal conditions of acid-catalysed steam explosion pretreatment of banana lignocellulosic biomass for fermentable sugar production

2017 ◽  
Vol 92 (9) ◽  
pp. 2351-2359 ◽  
Author(s):  
Ana Belén Guerrero ◽  
Ignacio Ballesteros ◽  
Mercedes Ballesteros
Keyword(s):  
Lignocellulosic Biomass ◽  
Steam Explosion ◽  
Sugar Production ◽  
Fermentable Sugar ◽  
Optimal Conditions ◽  
Steam Explosion Pretreatment

scholarly journals A novel surfactant-assisted dilute phosphoric acid plus steam explosion pretreatment of poplar wood for fermentable sugar production

2021 ◽  
Author(s):  
Denghui Tong ◽  
Peng Zhan ◽  
Weifeng Zhang ◽  
Yongcai Zhou ◽  
Yilei Huang ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Residence Time ◽  
Steam Explosion ◽  
Biomass Conversion ◽  
Structural Characteristics ◽  
Enzymatic Saccharification ◽  
Sugar Production ◽  
Fermentable Sugar ◽  
Steam Explosion Pretreatment ◽  
Before And After

Abstract Pretreatment is an indispensable process in lignocellulosic bioethanol production. In this work, a surfactant agent JFC was introduced into the dilute phosphoric acid plus steam explosion pretreatment scheme for fermentable sugar production using poplar as substrate. Four crucial factors (phosphoric acid concentration, surfactant concentration, pressure, and residence time) affecting the pretreatment efficiency were optimized using the single factor tests. The optimal parameters obtained were as follows: 1:2.5 solid/liquid rate, 2 h pre-soaking time, 1.5 %(v/v) JFC-M + 2.0 wt% phosphoric acid, 2.0 MPa pressure, and 120 s residence time, resulting in a maximum cellulose recovery rate of 86.33 % and enzymatic saccharification rate of 84.62 %, which was 38.97 % higher than that of control. The morphological and structural characteristics of samples before and after pretreatment, were characterized by the scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) method. The addition of JFC-M was of a notable influence in overcoming biomass recalcitrance and boosting cellulose digestion, showing great application potentials in biomass conversion process.

Valorisation of olive stone by-product for sugar production using a sequential acid/steam explosion pretreatment

2020 ◽  
Vol 148 ◽  
pp. 112279 ◽  
Author(s):  
C. Padilla-Rascón ◽  
E. Ruiz ◽  
I. Romero ◽  
E. Castro ◽  
J.M. Oliva ◽  
...  
Keyword(s):  
Steam Explosion ◽  
Sugar Production ◽  
Steam Explosion Pretreatment ◽  
Olive Stone

The influence of the explosive decompression in steam-explosion pretreatment on the enzymatic digestibility of different biomasses

2017 ◽  
Vol 202 ◽  
pp. 269-280 ◽  
Author(s):  
Christoph-M. Seidel ◽  
Thomas Pielhop ◽  
Michael H. Studer ◽  
Philipp Rudolf von Rohr
Keyword(s):  
Corn Stover ◽  
Lignocellulosic Biomass ◽  
Steam Explosion ◽  
Steam Pressure ◽  
Positive Influence ◽  
Herbaceous Plants ◽  
Enzymatic Digestibility ◽  
Maximum Enhancement ◽  
Steam Explosion Pretreatment ◽  
Pretreatment Conditions

For the production of second generation biofuels from lignocellulosic biomass, pretreatment of the biomass feedstock is necessary to overcome its recalcitrance in order to gain fermentable sugars. Due to many reasons, steam-explosion pretreatment is currently the most commonly used pretreatment method for lignocellulosic biomass on a commercial scale [S. Brethauer and M. H. Studer, CHIMIA, 2015, 69, 572–581]. In contrast to others, we showed that the explosive decompression at the end of this pretreatment step can have a positive influence on the enzymatic digestibility of softwood, especially in combination with high enzyme dosages [T. Pielhop, et al., Biotechnology for Biofuels, 2016, 9, 152]. In this study, the influence of the explosive decompression on the enzymatic digestibility of hardwood and herbaceous plants was systematically studied. Beech and corn stover were pretreated under different pretreatment conditions and enzymatically hydrolysed with different enzyme dosages. The maximum enhancement of the digestibility of corn stover was 16.53% after a 2.5 min pretreatment step at 15 barg steam pressure. For beech, a maximum relative enhancement of 58.29% after a 10 min pretreatment step at 15 barg steam pressure could be reached. With this, we show that the explosive decompression can also enhance the enzymatic cellulose digestibility of hardwood and herbaceous plants.

scholarly journals Steam Explosion Pretreatment of Lignocellulosic Biomass: A Mini-Review of Theorical and Experimental Approaches

2021 ◽  
Vol 9 ◽  
Author(s):  
Isabelle Ziegler-Devin ◽  
Laurent Chrusciel ◽  
Nicolas Brosse
Keyword(s):  
Lignocellulosic Biomass ◽  
Process Modeling ◽  
Steam Explosion ◽  
Subcritical Water ◽  
Environmentally Friendly ◽  
Steam Explosion Pretreatment ◽  
Steam Cracking ◽  
Experimental Approaches

Steam Explosion (SE) is one of the most efficient and environmentally friendly processes for the pretreatment of lignocellulosic biomass. It is an important tool for the development of the biorefinery concept to mitigate the recalcitrance of biomass. However, the two distinct steps of SE, steam cracking and explosive decompression, leading to the breakdown of the lignocellulosic matrix have generally been studied in empiric ways and clarification are needed. This mini-review provides new insights and recommendations regarding the properties of subcritical water, process modeling and the importance of the depressurization rate.

scholarly journals Steam Explosion Pretreatment of Beechwood. Part 1: Comparison of the Enzymatic Hydrolysis of Washed Solids and Whole Pretreatment Slurry at Different Solid Loadings

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3653 ◽  
Author(s):  
Robert Balan ◽  
Andrzej Antczak ◽  
Simone Brethauer ◽  
Tomasz Zielenkiewicz ◽  
Michael H. Studer
Keyword(s):  
Enzymatic Hydrolysis ◽  
Lignocellulosic Biomass ◽  
Steam Explosion ◽  
Optimization Procedure ◽  
Reaction Conditions ◽  
Steam Explosion Pretreatment ◽  
Pretreatment Temperature ◽  
Pretreatment Conditions ◽  
Whole Slurry ◽  
Hydrolysis Of

Steam explosion is a well-known process to pretreat lignocellulosic biomass in order to enhance sugar yields in enzymatic hydrolysis, but pretreatment conditions have to be optimized individually for each material. In this study, we investigated how the results of a pretreatment optimization procedure are influenced by the chosen reaction conditions in the enzymatic hydrolysis. Beechwood was pretreated by steam explosion and the resulting biomass was subjected to enzymatic hydrolysis at glucan loadings of 1% and 5% employing either washed solids or the whole pretreatment slurry. For enzymatic hydrolysis in both reaction modes at a glucan loading of 1%, the glucose yields markedly increased with increasing severity and with increasing pretreatment temperature at identical severities and maximal values were reached at a pretreatment temperature of 230 °C. However, the optimal severity was 5.0 for washed solids enzymatic hydrolysis, but only 4.75 for whole slurry enzymatic hydrolysis. When the glucan loading was increased to 5%, glucose yields hardly increased for pretreatment temperatures between 210 and 230 °C at a given severity, and a pretreatment temperature of 220 °C was sufficient under these conditions. Consequently, it is important to precisely choose the desired conditions of the enzymatic hydrolysis reaction, when aiming to optimize the pretreatment conditions for a certain biomass.

scholarly journals Lignocellulosic biomass as carbon source by steam explosion pretreatment

2009 ◽  
Vol 25 ◽  
pp. S275 ◽  
Author(s):  
F. Zimbardi ◽  
E. Viola ◽  
F. Nanna ◽  
G. Cardinale ◽  
A. Villone ◽  
...  
Keyword(s):  
Carbon Source ◽  
Lignocellulosic Biomass ◽  
Steam Explosion ◽  
Steam Explosion Pretreatment

Steam explosion pretreatment of triticale (× Triticosecale Wittmack) straw for sugar production

2016 ◽  
Vol 33 (1) ◽  
pp. 153-163 ◽  
Author(s):  
Roberto A. Agudelo ◽  
María P. García-Aparicio ◽  
Johann F. Görgens
Keyword(s):  
Steam Explosion ◽  
Sugar Production ◽  
Steam Explosion Pretreatment ◽  
Triticosecale Wittmack

Enzymatic hydrolysis of lignocellulosic biomass in ionic liquid media for fermentable sugar production

2012 ◽  
Vol 43 (4) ◽  
pp. 573-577 ◽  
Author(s):  
Chia-Hung Su ◽  
Ming-Hua Chung ◽  
Hsin-Ju Hsieh ◽  
Yu-Kaung Chang ◽  
Jin-Chau Ding ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Enzymatic Hydrolysis ◽  
Lignocellulosic Biomass ◽  
Sugar Production ◽  
Fermentable Sugar ◽  
Liquid Media ◽  
Hydrolysis Of
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