The damage caused by reactive oxygen radicals to the body is huge, and it can lead to aging of the human body and cause the occurrence of many diseases. Therefore, finding new antioxidant substance is urgent. In order to obtain new non-toxic antioxidant reagent, 3 kinds of di-amino-Schiff base derivatives of chitosan were prepared by grafting urea molecule onto chitosan chain using chitosan as raw material in this paper. The reaction conditions such as different reaction time, temperature, solvent and the molar ratio of reaction materials were discussed, and the structures of the derivatives were characterized by FT-IR and 13C NMR spectroscopy and elemental analysis. The antioxidant activities of chitosan and its derivatives were tested, including the scavenging ability of superoxide anions, hydroxyl radicals and DPPH radicals. The experimental results show that the derivatives and chitosan all have good antioxidant activities, of which the removal rate of HCS for ·OH is 78.2%; and the clearance of DSABHCS at concentration of 500 μg·mL-1 toward O2- is 97.8%; the clearance of LCS to DPPH is 94.3% at concentration of 600 μg·mL-1. These results laid the foundation for the development of chitosan and its derivatives using as new antioxidant reagents.
Published in | American Journal of Bioscience and Bioengineering (Volume 9, Issue 6) |
DOI | 10.11648/j.bio.20210906.13 |
Page(s) | 162-168 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2021. Published by Science Publishing Group |
Chitosan, Urea, Derivatives, Preparation, Antioxidant Activity
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APA Style
Zhimei Zhong, Guangnan Zhu, Zhihong Zhao, Haijie Li, Zhenting Zhang. (2021). Preparation and Antioxidant Activities of New Di-Amino-Schiff Base Derivatives of Chitosan. American Journal of Bioscience and Bioengineering, 9(6), 162-168. https://doi.org/10.11648/j.bio.20210906.13
ACS Style
Zhimei Zhong; Guangnan Zhu; Zhihong Zhao; Haijie Li; Zhenting Zhang. Preparation and Antioxidant Activities of New Di-Amino-Schiff Base Derivatives of Chitosan. Am. J. BioSci. Bioeng. 2021, 9(6), 162-168. doi: 10.11648/j.bio.20210906.13
AMA Style
Zhimei Zhong, Guangnan Zhu, Zhihong Zhao, Haijie Li, Zhenting Zhang. Preparation and Antioxidant Activities of New Di-Amino-Schiff Base Derivatives of Chitosan. Am J BioSci Bioeng. 2021;9(6):162-168. doi: 10.11648/j.bio.20210906.13
@article{10.11648/j.bio.20210906.13, author = {Zhimei Zhong and Guangnan Zhu and Zhihong Zhao and Haijie Li and Zhenting Zhang}, title = {Preparation and Antioxidant Activities of New Di-Amino-Schiff Base Derivatives of Chitosan}, journal = {American Journal of Bioscience and Bioengineering}, volume = {9}, number = {6}, pages = {162-168}, doi = {10.11648/j.bio.20210906.13}, url = {https://doi.org/10.11648/j.bio.20210906.13}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.bio.20210906.13}, abstract = {The damage caused by reactive oxygen radicals to the body is huge, and it can lead to aging of the human body and cause the occurrence of many diseases. Therefore, finding new antioxidant substance is urgent. In order to obtain new non-toxic antioxidant reagent, 3 kinds of di-amino-Schiff base derivatives of chitosan were prepared by grafting urea molecule onto chitosan chain using chitosan as raw material in this paper. The reaction conditions such as different reaction time, temperature, solvent and the molar ratio of reaction materials were discussed, and the structures of the derivatives were characterized by FT-IR and 13C NMR spectroscopy and elemental analysis. The antioxidant activities of chitosan and its derivatives were tested, including the scavenging ability of superoxide anions, hydroxyl radicals and DPPH radicals. The experimental results show that the derivatives and chitosan all have good antioxidant activities, of which the removal rate of HCS for ·OH is 78.2%; and the clearance of DSABHCS at concentration of 500 μg·mL-1 toward O2- is 97.8%; the clearance of LCS to DPPH is 94.3% at concentration of 600 μg·mL-1. These results laid the foundation for the development of chitosan and its derivatives using as new antioxidant reagents.}, year = {2021} }
TY - JOUR T1 - Preparation and Antioxidant Activities of New Di-Amino-Schiff Base Derivatives of Chitosan AU - Zhimei Zhong AU - Guangnan Zhu AU - Zhihong Zhao AU - Haijie Li AU - Zhenting Zhang Y1 - 2021/12/02 PY - 2021 N1 - https://doi.org/10.11648/j.bio.20210906.13 DO - 10.11648/j.bio.20210906.13 T2 - American Journal of Bioscience and Bioengineering JF - American Journal of Bioscience and Bioengineering JO - American Journal of Bioscience and Bioengineering SP - 162 EP - 168 PB - Science Publishing Group SN - 2328-5893 UR - https://doi.org/10.11648/j.bio.20210906.13 AB - The damage caused by reactive oxygen radicals to the body is huge, and it can lead to aging of the human body and cause the occurrence of many diseases. Therefore, finding new antioxidant substance is urgent. In order to obtain new non-toxic antioxidant reagent, 3 kinds of di-amino-Schiff base derivatives of chitosan were prepared by grafting urea molecule onto chitosan chain using chitosan as raw material in this paper. The reaction conditions such as different reaction time, temperature, solvent and the molar ratio of reaction materials were discussed, and the structures of the derivatives were characterized by FT-IR and 13C NMR spectroscopy and elemental analysis. The antioxidant activities of chitosan and its derivatives were tested, including the scavenging ability of superoxide anions, hydroxyl radicals and DPPH radicals. The experimental results show that the derivatives and chitosan all have good antioxidant activities, of which the removal rate of HCS for ·OH is 78.2%; and the clearance of DSABHCS at concentration of 500 μg·mL-1 toward O2- is 97.8%; the clearance of LCS to DPPH is 94.3% at concentration of 600 μg·mL-1. These results laid the foundation for the development of chitosan and its derivatives using as new antioxidant reagents. VL - 9 IS - 6 ER -