Role of Steam Explosion on Enzymatic Digestibility, Xylan Extraction, and Lignin Release of Lignocellulosic Biomass

2017 ◽  
Vol 5 (6) ◽  
pp. 5234-5240 ◽  
Author(s):  
Felicia Rodríguez ◽  
Arturo Sanchez ◽  
Carolina Parra
Keyword(s):  
Lignocellulosic Biomass ◽  
Steam Explosion ◽  
Enzymatic Digestibility

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 The Role of Yeast-Surface-Display Techniques in Creating Biocatalysts for Consolidated BioProcessing

Catalysts ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 94 ◽  
Author(s):  
Ian Dominic Flormata Tabañag ◽  
I-Ming Chu ◽  
Yu-Hong Wei ◽  
Shen-Long Tsai
Keyword(s):  
Climate Change ◽  
Lignocellulosic Biomass ◽  
Surface Engineering ◽  
Consolidated Bioprocessing ◽  
Surface Display ◽  
Yeast Surface Display ◽  
Qualitative Assessment ◽  
The Status ◽  
Yeast Surface

Climate change is directly linked to the rapid depletion of our non-renewable fossil resources and has posed concerns on sustainability. Thus, imploring the need for us to shift from our fossil based economy to a sustainable bioeconomy centered on biomass utilization. The efficient bioconversion of lignocellulosic biomass (an ideal feedstock) to a platform chemical, such as bioethanol, can be achieved via the consolidated bioprocessing technology, termed yeast surface engineering, to produce yeasts that are capable of this feat. This approach has various strategies that involve the display of enzymes on the surface of yeast to degrade the lignocellulosic biomass, then metabolically convert the degraded sugars directly into ethanol, thus elevating the status of yeast from an immobilization material to a whole-cell biocatalyst. The performance of the engineered strains developed from these strategies are presented, visualized, and compared in this article to highlight the role of this technology in moving forward to our quest against climate change. Furthermore, the qualitative assessment synthesized in this work can serve as a reference material on addressing the areas of improvement of the field and on assessing the capability and potential of the different yeast surface display strategies on the efficient degradation, utilization, and ethanol production from lignocellulosic biomass.

Steam explosion of lignocellulosic biomass for multiple advanced bioenergy processes: A review

2022 ◽  
Vol 154 ◽  
pp. 111871
Author(s):  
Yan Yu ◽  
Jie Wu ◽  
Xueyong Ren ◽  
Anthony Lau ◽  
Hamid Rezaei ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Steam Explosion

Steam Explosion Method – Opportunities for Application in Pretreatment of Lignocellulosic Biomass for Biogas Conversion

2019 ◽  
pp. 345-358
Author(s):  
Sławomir Kurpaska ◽  
Paweł Kiełbasa ◽  
Zygmunt Sobol ◽  
Stanisław Kokoszka
Keyword(s):  
Lignocellulosic Biomass ◽  
Steam Explosion ◽  
Explosion Method

Unravelling the mechanistic role of Ti O C bonding bridge at titania/lignocellulosic biomass interface for Cr(VI) photoreduction under visible light

2019 ◽  
Vol 553 ◽  
pp. 409-417 ◽  
Author(s):  
Ridha Djellabi ◽  
Bo Yang ◽  
Ke Xiao ◽  
Yan Gong ◽  
Di Cao ◽  
...  
Keyword(s):  
Visible Light ◽  
Lignocellulosic Biomass

scholarly journals The effect of continuous tubular reactor technologies on the pretreatment of lignocellulosic biomass at pilot-scale for bioethanol production

RSC Advances ◽  
2020 ◽  
Vol 10 (31) ◽  
pp. 18147-18159 ◽  
Author(s):  
José A. Pérez-Pimienta ◽  
Gabriela Papa ◽  
John M. Gladden ◽  
Blake A. Simmons ◽  
Arturo Sanchez
Keyword(s):  
Lignocellulosic Biomass ◽  
Tubular Reactor ◽  
Pilot Scale ◽  
Bioethanol Production ◽  
Enzymatic Digestibility

A pilot-scale continuous tubular reactor increases enzymatic digestibility of four different feedstocks by removing xylan and effectively achieving economically viable ethanol concentrations.

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