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Tao R, Wang Y, Zhang N, Zhang L, Khan MS, Xu H, Zhao J, Qi Z, Chen Y, Lu Y, Wang K, Wang Y, Jiang J. Bioactive chitosan-citral Schiff base zinc complex: A pH-responsive platform for potential therapeutic applications. Int J Biol Macromol 2024; 261:129857. [PMID: 38307438 DOI: 10.1016/j.ijbiomac.2024.129857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/16/2024] [Accepted: 01/29/2024] [Indexed: 02/04/2024]
Abstract
The application of CO2 supercritical fluid (SCF) technology has developed rapidly because of its non-toxic, environmentally friendly, mild reaction conditions and safety. The SCF technology can effectively speed up the reaction process of nano-material synthesis, and maintains a high degree of controllability and repeatability. This study mainly included carboxymethyl chitosan sodium salt (CCS), citral (CT), p-coumaric acid (CA), and ZnSO4 as raw materials to prepare CCS-CT-CA-Zn complex as a pH-responsive agent and was investigated using supercritical fluid technique. The coordination structure of Bridge-CCS-CT-CH3COO-CA-Zn-Schiff base/OH and the morphology of the complex agents were verified. The prepared CCS-CT-CA-Zn complex showed good dispersion and uniformity (mean size: 852 ± 202 nm, PdI: 0.301, and mean zeta potential: -31 ± 6 mV). Also, it has a good pH responsive release in an acid environment. Besides, both of CCS-CT-CA-Zn complex (DS-B) and its decomposed mixture in acid (DS-A) demonstrated significant antioxidant and anti-vibrio activity. Moreover, both DS-B complex and DS-A mixture inhibited biofilm formation, swimming, and swarming motilities of V. parahaemolyticus in a dose-dependent manner. This work will provide a scientific basis for the further design and development of natural products derived antibacterial-antioxidant complex agents, food additives and feed additives.
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Affiliation(s)
- Ran Tao
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China
| | - Yinjuan Wang
- Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Ning Zhang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China
| | | | | | - Hao Xu
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China
| | - Jian Zhao
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China.
| | - Zhiwen Qi
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China
| | - Yicun Chen
- Research Institute of Subtropical Forestry, CAF, Hangzhou 311400, Zhejiang Province, China
| | - Yin Lu
- Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Kui Wang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China; Huaqiao University, Xiamen 361000, Fujian Province, China.
| | - Yangdong Wang
- Chinese Academy of Forestry Sciences, Beijing 100091, PR China
| | - Jianchun Jiang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China; Huaqiao University, Xiamen 361000, Fujian Province, China.
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