Sulfation and Enhanced Antioxidant Capacity of an Exopolysaccharide Produced by the Medicinal Fungus Cordyceps sinensis
Abstract
:1. Introduction
2. Results and Discussion
2.1. The Sulfation of EPS-1
EPS fraction | CSA:Pyr(v/v) | Yield (mg) a | DS | Mwb (kDa) | Mnb (kDa) | P b (Mw/ Mn) |
---|---|---|---|---|---|---|
EPS-1 | — | — | — | 38.0 | 25.9 | 1.47 |
SEPS-1A | 1:8 | 197 | 0.25 | 17.1 | 16.4 | 1.04 |
SEPS-1B | 1:4 | 216 | 0.46 | 13.2 | 12.1 | 1.09 |
SEPS-1C | 1:2 | 229 | 0.93 | 9.4 | 7.8 | 1.20 |
SEPS-1D | 1:1 | 247 | 1.38 | 4.1 | 3.9 | 1.05 |
2.2. IR Spectra of EPS-1 and SEPS-1
2.3. Changes in Molecular Weight and Chain Conformation
2.4. Antioxidant Activities of Sulfated EPS-1 Derviatives
3. Experimental
3.1. Materials and Chemicals
3.2. Sulfation of EPS-1
3.3. Analysis of EPS-1 and SEPS-1 Molecular Properties
3.4. Antioxidant Activity Assays
3.5. Statistical Analysis
4. Conclusions
Acknowledgments
References
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Yan, J.-K.; Wang, W.-Q.; Ma, H.-L.; Wu, J.-Y. Sulfation and Enhanced Antioxidant Capacity of an Exopolysaccharide Produced by the Medicinal Fungus Cordyceps sinensis. Molecules 2013, 18, 167-177. https://doi.org/10.3390/molecules18010167
Yan J-K, Wang W-Q, Ma H-L, Wu J-Y. Sulfation and Enhanced Antioxidant Capacity of an Exopolysaccharide Produced by the Medicinal Fungus Cordyceps sinensis. Molecules. 2013; 18(1):167-177. https://doi.org/10.3390/molecules18010167
Chicago/Turabian StyleYan, Jing-Kun, Wen-Qiang Wang, Hai-Le Ma, and Jian-Yong Wu. 2013. "Sulfation and Enhanced Antioxidant Capacity of an Exopolysaccharide Produced by the Medicinal Fungus Cordyceps sinensis" Molecules 18, no. 1: 167-177. https://doi.org/10.3390/molecules18010167
APA StyleYan, J. -K., Wang, W. -Q., Ma, H. -L., & Wu, J. -Y. (2013). Sulfation and Enhanced Antioxidant Capacity of an Exopolysaccharide Produced by the Medicinal Fungus Cordyceps sinensis. Molecules, 18(1), 167-177. https://doi.org/10.3390/molecules18010167