Preparation of 2,3-dialdehyde microcrystalline cellulose particles crosslinked with ε-poly-L-lysine and their antibacterial activity

He, Xiaoliang; Li, Yan; Zhang, Liming; Du, Ruxu; Dai, Yujie; Tan, Zhi-Jie

doi:10.1007/s10570-021-03692-2

Cited by 15 publications

(7 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, two peaks were observed in DALF-20% and DALF-30% between 0 and 100 °C, indicating partial fiber degradation besides water absorption. The second stage corresponded to the main thermal decomposition of wood fibers, including cellulose, hemicellulose, and lignin. , Decomposition in the LF approximately began at 200 °C, and rapid weight loss was observed at 305.7 °C (Figure b). However, the corresponding DTG peak temperature of dialdehyde lignocellulose (DALF-0%) decreased by approximately 100–208.7 °C.…”

Section: Resultsmentioning

confidence: 99%

“…Sodium periodate (4.5 g) was added to 4 g of poplar wood fibers suspended in 400 mL of deionized water. The mixture was stirred at 60 °C in the dark for 8 h. The ethylene glycol was added to quench the reaction and decompose the remaining periodate . Then, the reaction products were washed more than three times with deionized water to remove the unreacted sodium periodate and reduction product of sodium iodide.…”

Section: Methodsmentioning

confidence: 99%

“…The mixture was stirred at 60 °C in the dark for 8 h. The ethylene glycol was added to quench the reaction and decompose the remaining periodate. 25 Then, the reaction products were washed more than three times with deionized water to remove the unreacted sodium periodate and reduction product of sodium iodide. The products were centrifuged, filtered, and freeze-dried.…”

Section: ■ Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High-Performance Lignocellulosic Self-Bonding Composites via Dialdehyde Modification and Water-Involved Low-Temperature Hot Pressing

Zhang

Chen

et al. 2022

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Novel lignocellulosic self-bonding materials with high performance and low hygroscopicity are still in demand in the wood industry. We demonstrated a facile and efficient approach to prepare adhesive-free all-lignocellulosic composites with excellent performances via the dialdehyde modification replacing the conventional hydrogen groups. Less than 30% water involved as the plasticizer could successfully optimize the performances of self-bonding composites and, more importantly, realize low-temperature hot pressing at 75 °C. The internal sectional morphology showed that individual wood fiber cells collapsed, and lignin was repolymerized with hemicellulose and cellulose to enhance interfacial bonding. Chemical analysis demonstrated the intra-and intermolecular association of dialdehyde groups. The self-assembly lignocellulosic composites were superior to most of the reported adhesive-free bio-fiber materials, demonstrating better flexural strength (93.7 MPa), internal bond strength (6.2 MPa), tensile strength (20.2 MPa), and hardness (1.0 GPa). Thus, this technology can be extended to different wood species. The thickness swelling rate of lignocellulosic self-bonding composites was only 2.1% after soaking in water for 24 h. In addition, the adhesive-free lignocellulosic composites exhibited plastic body-like behavior and excellent machinability. The applications of all-lignocellulosic self-bonding composites can be extended to high-strength structural buildings and outdoor household material fields, which aligns with the concepts of eco-friendliness, degradation, and carbon storage.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-Performance Lignocellulosic Self-Bonding Composites via Dialdehyde Modification and Water-Involved Low-Temperature Hot Pressing

Zhang

Chen

et al. 2022

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Compared with synthetic chemical preservatives, ɛ-PL exhibits biodegradability, water solubility and no human toxicity, and has been approved as a commercial food preservative by the U.S. Food and Drug Administration and equivalent organizations in several other countries [33,113,114]. ε-PL has been successfully used in the fields of food preservation (reviewed in detail by Tuersuntuoheti et al [13], anti-microbial treatments [115,116,117], food packaging [118], control of environmental pathogens [119], medicine (reviewed in detail by Shukla et al [120]) and agriculture (Fig. 2).…”

Section: Antimicrobial Mechanism Of ε-Pl and Its Functional Modificationmentioning

confidence: 99%

“…Similarly, a series of dialdehyde microcrystalline cellulose (DAMC) particles, crosslinked with ɛ-PL (ɛ-PL-DAMCs) was prepared by reacting DAMC with varying amounts of ɛ-PL. The ɛ-PL-DAMC complexes had broad-spectrum antibacterial activity, suggesting great potential for use in food packaging [118].…”

Section: Antimicrobial Mechanism Of ε-Pl and Its Functional Modificationmentioning

confidence: 99%

Recent advances in microbial ε-poly-L-lysine fermentation and its diverse applications

Mao

Zhang

et al. 2022

Biotechnol Biofuels

View full text Add to dashboard Cite

The naturally occurring homo-polyamide biopolymer, ε-poly-L-lysine (ε-PL) consists of 25–35 L-lysine residues with amide linkages between α-carboxyl groups and ε-amino groups. ɛ-PL exhibits several useful properties because of its unusual structure, such as biodegradability, water solubility, no human toxicity, and broad-spectrum antibacterial activities; it is widely applied in the fields of food, medicine, clinical chemistry and electronics. However, current industrial production of ε-PL is only performed in a few countries. Based on an analysis of the physiological characteristics of ε-PL fermentation, current advances that enhance ε-PL fermentation, from strain improvement to product isolation are systematically reviewed, focusing on: (1) elucidating the metabolic pathway and regulatory mechanism of ε-PL synthesis; (2) enhancing biosynthetic performance through mutagenesis, fermentation optimization and metabolic engineering; and (3) understanding and improving the biological activity and functional properties of ε-PL. Finally, perspectives on engineering and exploiting ε-PL as a source material for the production of various advanced materials are also discussed, providing scientific guidelines for researchers to further improve the ε-PL fermentation process.

show abstract

Dialdehyde cellulose as a niche material for versatile applications: an overview

Dalei

Das

Pradhan³

2022

Cellulose

View full text Add to dashboard Cite

Preparation of 2,3-dialdehyde microcrystalline cellulose particles crosslinked with ε-poly-L-lysine and their antibacterial activity

Cited by 15 publications

References 66 publications

High-Performance Lignocellulosic Self-Bonding Composites via Dialdehyde Modification and Water-Involved Low-Temperature Hot Pressing

High-Performance Lignocellulosic Self-Bonding Composites via Dialdehyde Modification and Water-Involved Low-Temperature Hot Pressing

Recent advances in microbial ε-poly-L-lysine fermentation and its diverse applications

Dialdehyde cellulose as a niche material for versatile applications: an overview

Contact Info

Product

Resources

About