Chemistry of lignin and hemicellulose structures interacts with hydrothermal pretreatment severity and affects cellulose conversion

2021 ◽  
Author(s):  
Parveen Kumar Deralia ◽  
Anders Jensen ◽  
Claus Felby ◽  
Lisbeth Garbrecht Thygesen
Keyword(s):  
Hydrothermal Pretreatment ◽  
Cellulose Conversion ◽  
Pretreatment Severity

Effect of hydrothermal pretreatment severity on the pretreatment characteristics and anaerobic digestion performance of corn stover

2019 ◽  
Vol 289 ◽  
pp. 121646 ◽  
Author(s):  
Xiaocong Song ◽  
Akiber Chufo Wachemo ◽  
Liang Zhang ◽  
Tianqing Bai ◽  
Xiujin Li ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Corn Stover ◽  
Hydrothermal Pretreatment ◽  
Pretreatment Severity

scholarly journals Effect of hydrothermal pretreatment severity on lignin inhibition in enzymatic hydrolysis

2019 ◽  
Vol 280 ◽  
pp. 303-312 ◽  
Author(s):  
Miriam Kellock ◽  
Hannu Maaheimo ◽  
Kaisa Marjamaa ◽  
Jenni Rahikainen ◽  
Heng Zhang ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Hydrothermal Pretreatment ◽  
Pretreatment Severity

Synergistic effect of acidity balance and hydrothermal pretreatment severity on alkali extraction of hemicelluloses from corn stalk

2021 ◽  
Author(s):  
Wei Wang ◽  
Haijun Wu ◽  
Usama Shakeel ◽  
Chao Wang ◽  
Tingxuan Yan ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Hydrothermal Pretreatment ◽  
Corn Stalk ◽  
Alkali Extraction ◽  
Pretreatment Severity

Tuning hydrothermal pretreatment severity of wheat straw to match energy application scenarios

2022 ◽  
Vol 176 ◽  
pp. 114326
Author(s):  
Chenjun He ◽  
Jinguang Hu ◽  
Fei Shen ◽  
Mei Huang ◽  
Li Zhao ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Hydrothermal Pretreatment ◽  
Energy Application ◽  
Pretreatment Severity

A Review of Lignocellulose Change During Hydrothermal Pretreatment for Bioenergy Production

2016 ◽  
Vol 20 (26) ◽  
pp. 2799-2809 ◽  
Author(s):  
Shiyang Fan ◽  
Panyue Zhang ◽  
Fan Li ◽  
Shuguang Jin ◽  
Siqi Wang ◽  
...  
Keyword(s):  
Hydrothermal Pretreatment ◽  
Bioenergy Production

Optimization of Hydrothermal Pretreatment of Lignocellulosic Biomass in the Bioethanol Production Process

ChemSusChem ◽  
2012 ◽  
Vol 6 (1) ◽  
pp. 110-122 ◽  
Author(s):  
Christos K. Nitsos ◽  
Konstantinos A. Matis ◽  
Kostas S. Triantafyllidis
Keyword(s):  
Production Process ◽  
Lignocellulosic Biomass ◽  
Hydrothermal Pretreatment ◽  
Bioethanol Production

Influence of hydrothermal pretreatment conditions, typology of anaerobic digestion system, and microbial profile in the production of volatile fatty acids from olive mill solid waste

2021 ◽  
Vol 9 (2) ◽  
pp. 105055
Author(s):  
Yasmim Arantes da Fonseca ◽  
Nayara Clarisse Soares Silva ◽  
Adonai Bruneli de Camargos ◽  
Silvana de Queiroz Silva ◽  
Hector Javier Luna Wandurraga ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Anaerobic Digestion ◽  
Solid Waste ◽  
Volatile Fatty Acids ◽  
Hydrothermal Pretreatment ◽  
Microbial Profile ◽  
Olive Mill Solid Waste ◽  
Pretreatment Conditions ◽  
Olive Mill

scholarly journals Comparison of Corn Stover Pretreatments with Lewis Acid Catalyzed Choline Chloride, Glycerol and Choline Chloride-Glycerol Deep Eutectic Solvent

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1170
Author(s):  
Yuan Zhu ◽  
Benkun Qi ◽  
Xinquan Liang ◽  
Jianquan Luo ◽  
Yinhua Wan
Keyword(s):  
Corn Stover ◽  
Lewis Acid ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Enzymatic Saccharification ◽  
Glycerol Solution ◽  
Cellulose Conversion ◽  
Biomass Processing ◽  
Acid Catalyzed ◽  
Highly Correlated

Herein, corn stover (CS) was pretreated by less corrosive lewis acid FeCl3 acidified solutions of neat and aqueous deep eutectic solvent (DES), aqueous ChCl and glycerol at 120 °C for 4 h with single FeCl3 pretreatment as control. It was unexpected that acidified solutions of both ChCl and glycerol were found to be more efficient at removing lignin and xylan, leading to higher enzymatic digestibility of pretreated CS than acidified DES. Comparatively, acidified ChCl solution exhibited better pretreatment performance than acidified glycerol solution. In addition, 20 wt% water in DES dramatically reduced the capability of DES for delignification and xylan removal and subsequent enzymatic cellulose saccharification of pretreated CS. Correlation analysis showed that enzymatic saccharification of pretreated CS was highly correlated to delignification and cellulose crystallinity, but lowly correlated to xylan removal. Recyclability experiments of different acidified pretreatment solutions showed progressive decrease in the pretreatment performance with increasing recycling runs. After four cycles, the smallest decrease in enzymatic cellulose conversion (22.07%) was observed from acidified neat DES pretreatment, while the largest decrease (43.80%) was from acidified ChCl pretreatment. Those findings would provide useful information for biomass processing with ChCl, glycerol and ChCl-glycerol DES.

Rosin acid modification of bamboo powder and thermoplasticity of its products based on hydrothermal pretreatment

2021 ◽  
Author(s):  
En-Qing Zhu ◽  
Gao-Feng Xu ◽  
Shao-Fei Sun ◽  
Jing Yang ◽  
Hai-Yan Yang ◽  
...  
Keyword(s):  
Rosin Acid ◽  
Hydrothermal Pretreatment ◽  
Acid Modification ◽  
Bamboo Powder

scholarly journals Hydrothermal Pretreatment of Wheat Straw: Effects of Temperature and Acidity on Byproduct Formation and Inhibition of Enzymatic Hydrolysis and Ethanolic Fermentation

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 487
Author(s):  
Dimitrios Ilanidis ◽  
Stefan Stagge ◽  
Leif J. Jönsson ◽  
Carlos Martín
Keyword(s):  
Mass Spectrometry ◽  
Sulfuric Acid ◽  
Wheat Straw ◽  
High Performance ◽  
Enzymatic Saccharification ◽  
Hydrothermal Pretreatment ◽  
Gas Chromatography Mass Spectrometry ◽  
Enzymatic Digestibility ◽  
Acid Catalyzed ◽  
Pretreatment Conditions

Biochemical conversion of wheat straw was investigated using hydrothermal pretreatment, enzymatic saccharification, and microbial fermentation. Pretreatment conditions that were compared included autocatalyzed hydrothermal pretreatment at 160, 175, 190, and 205 °C and sulfuric-acid-catalyzed hydrothermal pretreatment at 160 and 190 °C. The effects of using different pretreatment conditions were investigated with regard to (i) chemical composition and enzymatic digestibility of pretreated solids, (ii) carbohydrate composition of pretreatment liquids, (iii) inhibitory byproducts in pretreatment liquids, (iv) furfural in condensates, and (v) fermentability using yeast. The methods used included two-step analytical acid hydrolysis combined with high-performance anion-exchange chromatography (HPAEC), HPLC, ultra-high performance liquid chromatography-electrospray ionization-triple quadrupole-mass spectrometry (UHPLC-ESI-QqQ-MS), and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). Lignin recoveries in the range of 108–119% for autocatalyzed hydrothermal pretreatment at 205 °C and sulfuric-acid-catalyzed hydrothermal pretreatment were attributed to pseudolignin formation. Xylose concentration in the pretreatment liquid increased with temperature up to 190 °C and then decreased. Enzymatic digestibility was correlated with the removal of hemicelluloses, which was almost quantitative for the autocatalyzed hydrothermal pretreatment at 205 °C. Except for the pretreatment liquid from the autocatalyzed hydrothermal pretreatment at 205 °C, the inhibitory effects on Saccharomyces cerevisiae yeast were low. The highest combined yield of glucose and xylose was achieved for autocatalyzed hydrothermal pretreatment at 190 °C and the subsequent enzymatic saccharification that resulted in approximately 480 kg/ton (dry weight) raw wheat straw.

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