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Fan Y, Yu Q, Wang G, Tan J, Liu S, Pu S, Chen W, Xie P, Zhang Y, Zhang J, Liao Y, Luo A. Effects of non-thermal plasma treatment on the polysaccharide from Dendrobium nobile Lindl. And its immune activities in vitro. Int J Biol Macromol 2019; 153:942-950. [PMID: 31758995 DOI: 10.1016/j.ijbiomac.2019.10.260] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/28/2019] [Accepted: 10/28/2019] [Indexed: 02/05/2023]
Abstract
In order to improve the hydrophilicity and immune activity of the polysaccharide from Dendrobium nobile Lindl., non-thermal plasma was used to treat the polysaccharide. It was found that the hydrophilicity of the polysaccharide plasma-treated was significantly enhanced. Infrared spectra showed that the content of OH in the molecule increased significantly, and the monosaccharide ring changed from β-pyran sugar to β-furan sugar. The detection of SEM, AFM and TEM showed that the degree of cross-linking of surface molecules increased, and the arrangement of the polysaccharide was more compact and orderly. In vitro cell tests showed that the polysaccharide plasma-treated significantly improve the phagocytosis ability of RAW264.7, and promote the secretion of cytokines TNF-α, IL-6, IL-1. However, the cell proliferation test indicated that the polysaccharide did not increase the concentration of cytokines by promoting cell proliferation. RT-PCR showed that the polysaccharide plasma-treated could promote the expression of IL-1β at the transcriptional level. These results showed that non-thermal plasma treatment can effectively enhance the hydrophilicity of the polysaccharide and enhance its immune activity in vitro. Therefore, it can be inferred that the non-thermal plasma technology can be applied to the modification of active polysaccharides and will promote active polysaccharides to work better.
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Affiliation(s)
- Yijun Fan
- Department of Landscape Plants, Sichuan Agricultural University, Chengdu 611130, China
| | - Qingsong Yu
- Center for Surface Science and Plasma Technology, Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA.
| | - Gang Wang
- College of Forest, Sichuan Agriculture University, Chengdu 611130, China
| | - Jingwen Tan
- Center for Surface Science and Plasma Technology, Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Sha Liu
- Department of Pharmacy, Chengdu Medical College, Chengdu 610500, China
| | - Shangrao Pu
- Department of Landscape Plants, Sichuan Agricultural University, Chengdu 611130, China
| | - Wenchuan Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Peng Xie
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yixin Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jiao Zhang
- Department of Landscape Plants, Sichuan Agricultural University, Chengdu 611130, China
| | - Yixuan Liao
- Center for Surface Science and Plasma Technology, Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Aoxue Luo
- Department of Landscape Plants, Sichuan Agricultural University, Chengdu 611130, China.
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