Using lignin as the precursor to synthesize Fe3O4@lignin composite for preparing electromagnetic wave absorbing lignin-phenol-formaldehyde adhesive

Pei, Wenhui; Shang, Wenqi; Liang, Chen; Jiang, Xiao; Huang, Caoxing; Yong, Qiang

doi:10.1016/j.indcrop.2020.112638

Cited by 86 publications

(34 citation statements)

References 51 publications

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“…These residual solids are initially considered as agricultural residues for disposal or burning, which can lead to severe environmental contamination and air pollution. However, recently, emerging evidence has demonstrated that both polysaccharides and lignin from residual solids are invaluable resources for preparing multiple kinds of bio-materials and bio-chemicals using a biorefinery-type process (Chen D. et al, 2018;Zhao et al, 2018;Wu et al, 2019;Pei et al, 2020;Wei et al, 2020). Therefore, an ideal and greener waste management alternative should be considered to reuse the residual solids from C. retusus leaves.…”

Section: Introductionmentioning

confidence: 99%

Isolation and Identification of a Novel Anti-protein Aggregation Activity of Lignin-Carbohydrate Complex From Chionanthus retusus Leaves

Pei

Chen

Chan

et al. 2020

Front. Bioeng. Biotechnol.

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Lignin-carbohydrate complex (LCC) is the biological macromolecule that has been demonstrated to exert multiple biological functions, including antioxidant, antiinflammation and anti-tumorigenesis, which support its broad application in the bioengineering field. However, it remains elusive the involvements of LCC in human neurological disorders, especially those with the overproduction of reactive oxygen species (ROS), such as spinocerebellar ataxias (SCAs). In this study, we found a previously undetermined anti-protein aggregation activity of LCC. Initially, two individual LCC preparations and carbohydrate-free lignin were isolated from the water-extracted waste residues of Chionanthus retusus (C. retusus) tender leaves. The chemical compositional analysis revealed that lignin (61.5%) is the predominant constituent in the lignin-rich LCC (LCC-L-CR), whereas the carbohydrate-rich LCC (LCC-C-CR) is mainly composed of carbohydrate (60.9%) with the xylan as the major constituent (42.1%). The NMR structural characterization showed that LCC-L-CR preparation is enriched in benzyl ether linkage, while phenyl glycoside is the predominant type of linkage in LCC-C-CR. Both LCC and lignin preparations showed antioxidant activities as exemplified by their abilities to scavenge free radicals in cultured mammalian cells and ROS in zebrafish. We further demonstrated a pronounced capability of LCC-L-CR in inhibiting the aggregation of expanded Ataxin-3, disease protein of SCA type 3, in human neuronal cells. Taken together, our study highlights the antioxidant and novel anti-protein aggregation activities of the C. retusus tender leaves-derived LCC.

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Section: Introductionmentioning

confidence: 99%

Isolation and Identification of a Novel Anti-protein Aggregation Activity of Lignin-Carbohydrate Complex From Chionanthus retusus Leaves

Pei

Chen

Chan

et al. 2020

Front. Bioeng. Biotechnol.

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“…Because the produced PHL contains various amounts of monomeric and oligomeric sugars, as well as soluble lignin, it is possible to envision the use of this waste stream to generate high value. This strategy is in line with the overall biore nery concept, where multiple value-added products are generated from lignocellulosic materials by different processes [8][9][10].…”

Section: Introductionmentioning

confidence: 62%

“…Due to differences in molecular weight and boiling point, the HFM, furfural and soluble lignin in desorbed ethanol can be further separated by distillation, membrane separation, or other combined technologies. All of these products are important platform chemicals that can be further used to synthesize resins, plastics, and other value-added products [10,51].…”

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confidence: 99%

Removal of fermentation inhibitors from pre-hydrolysis liquor using polystyrene divinylbenzene resin

Huang

Zheng

Lin

et al. 2020

Preprint

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Background: The presence of soluble lignin, furfural and hydroxymethylfurfural (HMF) in industrial pre-hydrolysis liquor (PHL) from the pulping process can inhibit its bioconversion into bioethanol and other biochemicals. Although various technologies have been developed to remove these inhibitors, certain amounts of sugars are also inevitably removed during the treatment process. Hence, polystyrene divinylbenzene (PS-DVB) resin was used as an adsorptive material to simultaneously remove fermentation inhibitors while retaining sugars with high yields to improve the fermentability of PHL after acid-hydrolysis by enriching its xylose concentration. The fermentability of acid-hydrolyzed PHL (A-PHL) was evaluated by the bioconversion into ethanol and xylosic acid (XA) after treatment with PS-DVB resin.Results: The results showed that the highest xylose concentration (101.1 g/L) in PHL could be obtained by acid-hydrolysis at 100 oC for 80 min with 4% acid, while the concentration of fermentation inhibitors (furfural, HMF and lignin) in PHL could also be significantly improved during the acid-hydrolysis process. After treatment with PS-DVB resin, not only were 97% of lignin, 92% of furfural, and 97% of HMF removed from A-PHL, but also 96% of xylose was retained for subsequent fermentation. With resin treatment, the fermentability of A-PHL could be improved by 162-282% for ethanol production from A-PHL containing 30-50 g/L xylose and by 18-828% for XA production from A-PHL containing 90-150 g/L xylose. Conclusions: These results confirmed that PS-DVB resin can remove inhibitors from PHL before producing value-added products by bioconversion. In addition, this work will ideally provide a concept for producing value-added chemicals from pre-hydrolysis liquor, which is regarded as the waste stream in the pulping process.

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“…Because the produced PHL contains various amounts of monomeric and oligomeric sugars, as well as soluble lignin, it is possible to envision utility of this waste stream to generate high value. This strategy is in line with the overall biore nery concept, where multiple value-added products are generated by a process which consumes lignocellulosic material [8][9][10].…”

mentioning

confidence: 73%

Improving the fermentability of pre-hydrolysis liquor to produce ethanol and xylonic acid by removing fermentation inhibitors using polystyrene divinylbenzene resin

Huang

Lin

Shi

et al. 2020

Preprint

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Background The existences of soluble lignin, furfural and HMF in industrial pre-hydrolysis liquor (PHL) can inhibit its bioconversion into bioethanol and other bio-chemicals. Although various technologies have been carried out to remove these inhibitors, a undesirable sugars removal is also happened during the process. Hence, polystyrene divinylbenzene (PS-DVB) resin was used as adsorptive material to simultaneously remove fermentation inhibitors while retain sugars with higher yield for improving the fermentability of PHL after acid-hydrolysis (A-PHL) treatment. The fermentability of treated PHL was evaluated by the bioconversion into ethanol and xylosic acid (XA). Results Results showed that an highest xylose concentration (101.1 g/L) in PHL could be obtained by acid-hydrolysis at 100 oC for 80 min with 4% acid, while concentration of fermentation inhibitors (furfural, HMF and lignin) could also be significantly improved. After treating, not only 97% of lignin, 92% of furfural, and 97% of HMF were removed from solution, but also 96% of xylose was retained for subsequent fermentation. With resin treatment, the fermentability of A-PHL could be improved by 162–282% for ethanol production from A-PHL with 30–50 g/L xylose and by 18–828% for XA production from A-PHL with 90–150 g/L xylose. Conclusions These results confirmed that PS-DVB resin can remove inhibitors from PHL before producing value-added products by bioconversion. In addition, the work will ideally provide a concept by which pulping facilities could go about producing value-added chemicals from existing waste streams.

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Using lignin as the precursor to synthesize Fe3O4@lignin composite for preparing electromagnetic wave absorbing lignin-phenol-formaldehyde adhesive

Cited by 86 publications

References 51 publications

Isolation and Identification of a Novel Anti-protein Aggregation Activity of Lignin-Carbohydrate Complex From Chionanthus retusus Leaves

Isolation and Identification of a Novel Anti-protein Aggregation Activity of Lignin-Carbohydrate Complex From Chionanthus retusus Leaves

Removal of fermentation inhibitors from pre-hydrolysis liquor using polystyrene divinylbenzene resin

Improving the fermentability of pre-hydrolysis liquor to produce ethanol and xylonic acid by removing fermentation inhibitors using polystyrene divinylbenzene resin

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