Preparation of Chitosan with High Degree of Deacetylation from Amorphous Chitin

被引：0
|
作者：
Lei X. [1 ]
Wenchang Z. [1 ]
Yan Z. [1 ]
Jinsong Z. [1 ]
机构：
[1] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang
来源：
Science and Technology of Food Industry | 2021年 / 42卷 / 13期
关键词：
amorphization; chitin; chitosan; degree of deacetylation; superfine grinding;
D O I：
10.13386/j.issn1002-0306.2020100188
中图分类号：
学科分类号：
摘要：
By controlling the grinding time, four kinds of chitin powders with crystallinity of 80.91%, 58.06%, 31.94% and 8.09% were obtained by superfine grinding of chitin, then the heterogeneous deacetylation reaction of them and ordinary grinding chitin was comparative studied. The results showed that the degree of deacetylation of the prepared chitosan was increased with the decrease of crystallinity of chitin. Chitosan with high degree of deacetylation (>90%) could be obtained by single alkali treatment by using chitin powder with crystallinity of 31.94% and 8.09%, and the degree of deacetylation chitosan with ordinary grinding chitin was only 84%. According to the kinetic analysis, the activation energies of heterogeneous deacetylation of chitin powder obtained by ordinary grinding and four kinds of chitin powders obtained by superfine grinding were 58.71, 47.23, 42.30, 35.44 and 31.73 kJ/mol, respectively. The activation energy of the reaction decreased with the decrease of crystallinity, which indicated that amorphous treatment could enhance the heterogeneous deacetylation activity of chitin. © 2021 Science and Technology of Food Industry. All rights reserved.
引用
收藏
页码：216 / 220
页数：4
相关论文
共 36 条
  • [1] Younes I, Rinaudo M., Chitin and chitosan preparation from marine sources. Structure, properties and applications[J], Marine Drugs, 13, 3, (2015)
  • [2] Duan B, Huang Y, Lu A, Et al., Recent advances in chitin based materials constructed via physical methods[J], Progress in Polymer Science, 82, pp. 1-33, (2018)
  • [3] Sun C, Fu D, Jin L, Et al., Chitin isolated from yeast cell wall induces the resistance of tomato fruit to Botrytis cinerea[J], Carbohydrate Polymers, 199, pp. 341-352, (2018)
  • [4] Deepthi S, Venkatesan J, Kim S K, Et al., An overview of chitin or chitosan/nano ceramic composite scaffolds for bone tissue engineering[J], International Journal of Biological Macromolecules, 93, pp. 1338-1353, (2016)
  • [5] Song S, Zhao Y, Yuan X, Et al., β-Chitin nanofiber hydrogel as a scaffold to in situ fabricate monodispersed ultra-small silver nanoparticles[J], Colloids and Surfaces A: Physicochemical and Engineering Aspects, 574, pp. 36-43, (2019)
  • [6] Bedian L, Villalba-Rodriguez A M, Hernandez-Vargas G, Et al., Bio-based materials with novel characteristics for tissue engineering applications - A review[J], International Journal of Biological Macromolecules, 98, pp. 837-846, (2017)
  • [7] Muxika A, Etxabide A, Uranga J, Et al., Chitosan as a bioactive polymer: Processing, properties and applications[J], International Journal of Biological Macromolecules, 105, pp. 1358-1368, (2017)
  • [8] Shariatinia Z., Pharmaceutical applications of chitosan[J], Advances in Colloid and Interface Science, 263, pp. 131-194, (2019)
  • [9] Verlee A, Mincke S, Stevens C V., Recent developments in antibacterial and antifungal chitosan and its derivatives[J], Carbohydrate Polymers, 164, pp. 268-283, (2017)
  • [10] 3, 5, pp. 20-27, (2018)
1234