A5031480604- Lignin and Wood Chemistry
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Plant Gene Expression Analysis
- Fermentation and Sensory Analysis
- Biofuel production and bioconversion
- Advanced Cellulose Research Studies
- Enzyme-mediated dye degradation
- Biochemical and biochemical processes
- Metal-Organic Frameworks: Synthesis and Applications
- Catalysis for Biomass Conversion
- Nanocomposite Films for Food Packaging
- Phytochemicals and Antioxidant Activities
- Magnetism in coordination complexes
- Polysaccharides and Plant Cell Walls
- Conducting polymers and applications
- Adsorption and biosorption for pollutant removal
- Lanthanide and Transition Metal Complexes
- Crystallography and molecular interactions
- Food composition and properties
- Crystal structures of chemical compounds
- Epoxy Resin Curing Processes
- Electrospun Nanofibers in Biomedical Applications
- Advanced biosensing and bioanalysis techniques
- Bioenergy crop production and management
South China University of Technology
2016-2025
Qilu University of Technology
2022-2024
Shandong Academy of Sciences
2022-2024
Great Lakes Bioenergy Research Center
2011-2021
University of Wisconsin–Madison
2011-2021
Guangxi University
2021
United States Department of Energy
2018
Kunming University of Science and Technology
2016
Northeast Normal University
2012-2013
Beijing Forestry University
2009
Lignin, a major component of lignocellulosic biomass, is crucial to plant growth and development but impediment efficient biomass utilization in various processes. Valorizing lignin increasingly realized as being essential. However, rapid condensation during acidic extraction leads the formation recalcitrant condensed units that, along with similar structural heterogeneity native lignin, drastically limits product yield selectivity. Catechyl (C-lignin), which essentially benzodioxane...
Elucidating the structural characteristics and changes of lignin during biorefining is considerably important for valorization. To examine transformations under deep eutectic solvent (DES) pretreatments, double enzymatic (DEL) isolated from Eucalyptus was pretreated with DES (ChCl/lactic acid, 1:10) conditions 60–140 °C 6 h. The pretreatment have been investigated by quantitative 13C NMR, two-dimensional-heteronuclear single quantum correlation (2D-HSQC) 31P gel permeation chromatography...
Lignin is the most abundant aromatic polymer from natural and renewable lignocellulosic biomass resource. Developing highly efficient catalysts for lignin depolymerization to produce valuable monophenols with high yield selectivity remains a desirable but challenging target in this field. Here, we design synergistic catalyst combining atomically dispersed Mo centers Al Lewis acid sites on MgO substrate (Mo1Al/MgO) of Eucalyptus via β-aryl ether bond cleavage. A near-theoretical monophenol...
Lignins are complex and heterogeneous natural polymers in which the major units characterized by certain prominent interunit linkages. Previous attempts to identify quantify 4–O–5-linked softwood lignins NMR were not successful. In this work, various lignin model compounds, including tetramers formed 4–O–5-coupling of β–O–4-, β–β-, β–5-model dimers, synthesized. Such compounds better able corresponding structures than those used previously. 4–O–5-Linked could be clearly observed identified...
Technical lignins, mostly generated as byproducts from the pulping industry, are highly abundant aromatic sources. However, they underutilized due to their complexity, well structural alteration during chemical processes. In-depth elucidation of technical lignins is becoming essential for valorization in view lack understanding lignin structures. In this work, alkaline and kraft were prepared comparatively characterized by 2D HSQC NMR. By applying authenticated reference compounds,...
A spectroscopic method was developed for the determination of lignin contents in lignocellulosic biomass, based on a full dissolution biomass sample cysteine–sulfuric acid solution at room temperature.
Oral drug delivery is a common route for management of inflammatory bowel disease (IBD) but suffers from low bioavailability and systemic side effects during passage through the alimentary canal. Here, we present therapeutic nano reagent ferulic acid-derived lignin nanoparticle (FALNP). We showed that FALNP with favorable antioxidant activity can regulate IBD. More importantly, intestinal pH-responsive degradability allows it to withstand harsh gastric acid environment, bypass physiological...
Analytical thioacidolysis releases diagnostic monomers from lignins by selectively cleaving alkyl aryl ether bonds. High yielding syntheses of the three were developed, and compounds used as standards for gas chromatography-mass spectrometry (GC-MS) chromatography-flame ionization detector (GC-FID) quantitation released lignocellulosics. First, syringyl, guaiacyl, p-hydroxyphenyl glycerols synthesized corresponding ethyl cinnamates substrates to prepare in high yields. These then standard...
Understanding the chemical structure of lignin in willow bark is an indispensable step to design how separate its fiber bundles. The whole cell wall and enzyme preparations sequentially isolated from ball-milled bark, inner wood were comparatively investigated by nuclear magnetic resonance (NMR) spectroscopy three classical degradative methods, i.e., alkaline nitrobenzene oxidation, derivatization followed reductive cleavage, analytical thioacidolysis. All results demonstrated that guaiacyl...
Identification and mechanism study of lignin-derived monomers dimers from the fractionation <italic>Eucalyptus</italic> alkali lignin provide new insights into valorization.
In this study, experiments and molecular dynamics simulations were combined to get insights into the role of solvent during process xylose conversion under catalyst-free conditions.
Abstract The function of the transcription factor KNOTTED ARABIDOPSIS THALIANA7 (KNAT7) is still unclear since it appears to be either a negative or positive regulator for secondary cell wall deposition with its loss-of-function mutant displaying thicker interfascicular and xylary fiber walls but thinner vessel in inflorescence stems. To explore exact KNAT7, class II KNOTTED1-LIKE HOMEOBOX (KNOX II) genes Arabidopsis including KNAT3, KNAT4, KNAT5 were studied together. By chimeric repressor...
Fluorescent cellulose films with high strength, transparency and UV resistance were prepared. Such extraordinary properties allow application prospects in protection, anti-counterfeiting remote LED devices.
The homogeneous chemical modification of cellulose with succinic anhydride was investigated in a solvent system containing 1-butyl-3-methylimidazolium chloride ionic liquid and dimethylsulfoxide using N-bromosuccinimide (NBS) as catalyst. results showed that the degree substitution succinylated cellulosic samples, range 0.24−2.31, noticeably increased compared products without any catalysts, indicating NBS novel efficient catalyst for succinoylation liquids. Fourier transform infrared...
Phenolation is one of the most efficient ways to improve lignin's reactivity by increasing phenolic hydroxyl (Ph-OH) contents and active sites. However, due its complex structural nature, lignin structure significantly impacts phenolation following nanoparticle fabrication. In this study, cellulolytic enzyme (CEL) kraft (KL) Simao pine was conducted under appropriate acid-catalyzed conditions resultant phenolated lignins were comprehensively characterized. The main difference between KL CEL...
The lignin model compounds were efficiently cleaved into veratric acid and aliphatic carboxylic acids by the electrocatalyst nickel oxyhydroxide.
Abstract Lignin structural studies play an essential role both in understanding the development of plant cell walls and for valorizing lignocellulosics as renewable biomaterials. Dimeric products released by selectively cleaving β–aryl ether linkages between lignin units reflect distribution recalcitrant units, but have been neither absolutely defined nor quantitatively determined. Here, 12 guaiacyl‐type thioacidolysis dimers were identified quantified using newly synthesized standards. One...