scholarly journals Synthesis, Characterization, and the Antioxidant Activity of Double Quaternized Chitosan Derivatives

Molecules ◽  
2017 ◽  
Vol 22 (3) ◽  
pp. 501 ◽  
Author(s):  
Lijie Wei ◽  
Qing Li ◽  
Wenqiang Tan ◽  
Fang Dong ◽  
Fang Luan ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chitosan Derivatives ◽  
Quaternized Chitosan

scholarly journals Preparation and Characterization of Quaternized Chitosan Derivatives and Assessment of Their Antioxidant Activity

Molecules ◽  
2018 ◽  
Vol 23 (3) ◽  
pp. 516 ◽  
Author(s):  
Fang Luan ◽  
Lijie Wei ◽  
Jingjing Zhang ◽  
Wenqiang Tan ◽  
Yuan Chen ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chitosan Derivatives ◽  
Quaternized Chitosan

scholarly journals Influence of Hydroxyl Groups of Quaternized Chitosan Derivatives on Antioxidant Activity

2014 ◽  
Vol 26 (16) ◽  
pp. 5008-5010
Author(s):  
Gang Wang ◽  
Gang Wang ◽  
Fang Dong ◽  
Zhanyong Guo
Keyword(s):  
Antioxidant Activity ◽  
Hydroxyl Groups ◽  
Chitosan Derivatives ◽  
Quaternized Chitosan

scholarly journals Correction: Piras, A.M., et al. Antibacterial, Antibiofilm, and Antiadhesive Properties of Different Quaternized Chitosan Derivatives. Int. J. Mol. Sci. 2019, 20, 6297

2021 ◽  
Vol 22 (5) ◽  
pp. 2511
Author(s):  
Anna Maria Piras ◽  
Semih Esin ◽  
Arianna Benedetti ◽  
Giuseppantonio Maisetta ◽  
Angela Fabiano ◽  
...  
Keyword(s):  
Chitosan Derivatives ◽  
Quaternized Chitosan

The authors wish to make the following corrections to this paper [...]

scholarly journals Significantly enhanced antioxidant activity of chitosan through chemical modification with coumarins

2019 ◽  
Vol 10 (12) ◽  
pp. 1480-1488 ◽  
Author(s):  
Qing Li ◽  
Lijie Wei ◽  
Jingjing Zhang ◽  
Guodong Gu ◽  
Zhanyong Guo
Keyword(s):  
Antioxidant Activity ◽  
Chemical Modification ◽  
Chitosan Derivatives ◽  
New Class

A new class of chitosan derivatives possessing coumarins was synthesized to improve the antioxidant activity of chitosan.

scholarly journals Antioxidant Activity and Antifungal Activity of Chitosan Derivatives with Propane Sulfonate Groups

Polymers ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 395 ◽  
Author(s):  
Fang Luan ◽  
Lijie Wei ◽  
Jingjing Zhang ◽  
Yingqi Mi ◽  
Fang Dong ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antifungal Activity ◽  
Chitosan Derivatives

scholarly journals Modification of Hydroxypropyltrimethyl Ammonium Chitosan with Organic Acid: Synthesis, Characterization, and Antioxidant Activity

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2460
Author(s):  
Yingqi Mi ◽  
Wenqiang Tan ◽  
Jingjing Zhang ◽  
Zhanyong Guo
Keyword(s):  
Antioxidant Activity ◽  
Organic Acids ◽  
Organic Acid ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Scavenging Activity ◽  
Chitosan Derivatives ◽  
13C Nuclear Magnetic Resonance ◽  
Wide Range

A novel and green method for the preparation of chitosan derivatives bearing organic acids was reported in this paper. In order to improve the antioxidant activity of chitosan, eight different hydroxypropyltrimethyl ammonium chitosan derivatives were successfully designed and synthesized via introducing of organic acids onto chitosan by mild and non-toxic ion exchange. The data of Fourier Transform Infrared (FTIR), 13C Nuclear Magnetic Resonance (NMR), 1H NMR, and elemental analysis for chitosan derivatives indicated the successful conjugation of organic acid salt with hydroxypropyltrimethyl ammonium chloride chitosan (HACC). Meanwhile, the antioxidant activity of the chitosan derivatives was evaluated in vitro. The results indicated that the chitosan derivatives possessed dramatic enhancements in DPPH-radical scavenging activity, superoxide-radical scavenging activity, hydroxyl radical scavenging ability, and reducing power. Furthermore, the cytotoxicity of the synthesized compounds was investigated in vitro on L929 cells and showed low cytotoxicity. Thus, the enhanced antioxidant property of all novel chitosan products might be a great advantage, while applied in a wide range of applications in the form of antioxidant in biomedical, food, and cosmetic industry.

scholarly journals Synthesis and antioxidant activity of water-soluble chitosan derivatives

IUBMB Life ◽  
1998 ◽  
Vol 44 (5) ◽  
pp. 939-948 ◽  
Author(s):  
Seiichi Matsugo ◽  
Minako Mizuie ◽  
Michiko Matsugo ◽  
Rie Ohwa ◽  
Hiromi Kitano ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Water Soluble ◽  
Chitosan Derivatives

Antioxidant activity of water-soluble chitosan derivatives

2001 ◽  
Vol 11 (13) ◽  
pp. 1699-1701 ◽  
Author(s):  
Wenming Xie ◽  
Peixin Xu ◽  
Qing Liu
Keyword(s):  
Antioxidant Activity ◽  
Water Soluble ◽  
Chitosan Derivatives
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