A sustainable woody biomass biorefinery

Liu, Shijie; Lu, Houfang; Hu, Ruofei; Shupe, Alan; Lin, Lu; Liang, Bin

doi:10.1016/j.biotechadv.2012.01.013

Cited by 143 publications

(76 citation statements)

References 66 publications

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“…As investigated previously, the hot-water sugar maple hemicellulosic wood extracts hydrolyzate used in this study contained six monosaccharides, primarily xylose, and minor amounts of glucose, mannose, arabinose, galactose, and rhamnose and other compounds, such as phenolics and aromatics [7]. Liu et al [19] have reported that the mutant E. coli FBHW could grow in concentrated hot-water wood extract hydrolyzate.…”

Section: Resultsmentioning

confidence: 80%

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Kinetic Modeling of Ethanol Batch Fermentation by Escherichia Coli FBWHR Using Hot-Water Sugar Maple Wood Extract Hydrolyzate as Substrate

Wang

Liu

2014

Energies

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A recombinant strain of Escherichia coli FBWHR was used for ethanol fermentation from hot-water sugar maple wood extract hydrolyzate in batch experiments. Kinetic studies of cell growth, sugar utilization and ethanol production were investigated at different initial total sugar concentrations of wood extract hydrolyzate. The highest ethanol concentration of 24.05 g/L was obtained using an initial total sugar concentration of 70.30 g/L. Unstructured models were developed to describe cell growth, sugar utilization and ethanol production and validated by comparing the predictions of model and experimental data. The results from this study could be expected to provide insights into the process performance, optimize the process and aid in the design of processes for large-scale production of ethanol fermentation from woody biomass.

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Section: Resultsmentioning

confidence: 80%

“…Therefore, low-cost lignocellulosic materials such as woody biomass, agricultural residues, processing by-products and energy crops have been considered promising sources for fuel ethanol. Woody biomass is the most abundant organic source on Earth, with annual production in the biosphere of about 5.64 × 10 10 Mg-C [7][8][9].…”

Section: Open Accessmentioning

confidence: 99%

Kinetic Modeling of Ethanol Batch Fermentation by Escherichia Coli FBWHR Using Hot-Water Sugar Maple Wood Extract Hydrolyzate as Substrate

Wang

Liu

2014

Energies

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“…Efficiency in biorefineries, where wood components are separated into their pure forms, is critical. However, LCC-networks are obstacles to efficient separation by extraction, as various wood components have quite different solubility properties (Liu et al 2012).…”

Section: Treatment With Commercial Enzymes Used In Biorefinery Conceptsmentioning

confidence: 99%

A Method for Studying Effects on Lignin-Polysaccharide Networks during Biological Degradation and Technical Processes of Wood

Bi¹,

Oinonen²,

Wang³

et al. 2015

BioResources

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Woody tissues consist primarily of a mixture of cellulose, hemicelluloses, and lignin. Covalent bonds between lignin and polysaccharides likely play a central role in determining the mechanical and physical properties of wood. Intact and defined lignin-polysaccharide networks have not been isolated in large quantities because of the recalcitrance of lignin, which demands harsh chemical treatments that alter its structure. This report presents a method for preparing large quantities of ligninpolysaccharide networks similar to those naturally present in wood based on the enzymatic oxidation of hemicellulose from Norway spruce. Fungal enzymes produced from various carbon sources were used to depolymerize these networks. The method was used for simulating "enzyme mining" -a concept in biorefineries, giving a possible explanation for its mechanisms.

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“…Its potential, however, is currently underutilized. Approximately 2% of the lignin extracted from pulping processes is used for high-value products, while the rest is burned as a low-value fuel (Stewart 2008;Liu et al 2012;Kumar and Murthy 2013).…”

Section: Introductionmentioning

confidence: 99%

Structural Characterization of Lignin Isolated from Wheat-Straw during the Alkali Cooking Process

Tian

Wang

et al. 2017

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aTo investigate the behavior of lignin during the alkali cooking process with different alkali doses, this work demonstrated the structural characteristics illustrated by spectroscopic analyses. Gel permutation chromatography (GPC) and nuclear magnetic resonance (NMR) indicated that the lignin was composed of typical structures for a grass, generally with S and G units and small amounts of H units. The main substructures present were β-O-4 aryl ether linkages, and there were lower amounts of β-β and β-5 linkages. Alkali treatment conditions had evident effects on the chemical structures and properties of lignin. Moreover, NMR indicated that alkali cooking caused lignin to depolymerize more easily with increasing severity and to condense.

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A sustainable woody biomass biorefinery

Cited by 143 publications

References 66 publications

Kinetic Modeling of Ethanol Batch Fermentation by Escherichia Coli FBWHR Using Hot-Water Sugar Maple Wood Extract Hydrolyzate as Substrate

Kinetic Modeling of Ethanol Batch Fermentation by Escherichia Coli FBWHR Using Hot-Water Sugar Maple Wood Extract Hydrolyzate as Substrate

A Method for Studying Effects on Lignin-Polysaccharide Networks during Biological Degradation and Technical Processes of Wood

Structural Characterization of Lignin Isolated from Wheat-Straw during the Alkali Cooking Process

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