期刊
BIOPOLYMERS
卷 101, 期 3, 页码 210-215出版社
WILEY
DOI: 10.1002/bip.22312
关键词
Momordica charantia L; sulfated derivatives; polysaccharide; antioxidant
资金
- Special Scientific Research Foundation of Higher Universities for Doctoral Program New Teacher's Project of China [20120211120046]
- Youth Science and Technology Fund Plan Project of Gansu Province [1208RJYA056]
- Doctoral Research Funds for the Universities [EA201202043]
Sulfated derivatives of polysaccharide from Momordica charantia L. (MCPS) with different degree of sulfation (DS) were synthesized by chlorosulfonic acid method with ionic liquids as solvent. Fourier transform infrared spectra and C-13 nuclear magnetic resonance spectra indicated that C-6 substitution was predominant in MCPS compared with the C-2 position. Compared with the native polysaccharide from Momordica charantia L. (MCP), MCPS exhibited more excellent antioxidant activities in vitro, which indicated that sulfated modification could enhance antioxidant activities of MCP. Furthermore, high DS and moderate molecular weight could improve the antioxidant activities of polysaccharide. (c) 2013 Wiley Periodicals, Inc. Biopolymers 101: 210-215, 2014.
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