Structural properties and antioxidant activities of polysaccharide from fruit bodies of Pholiota nameko

Natural Product Research
Zhen-Yuan ZhuLi-Jing Chen

Abstract

A polysaccharide named PNP was extracted and purified from Pholiota nameko. The total sugar content of PNP was 95.29% and the molecular weight was 1.89 × 103 kDa. The structural features of PNP were investigated by the combination of chemical and instrumental analysis such as UV spectrophotometer, specific rotation determination, FT-IR, methylisation analysis and Congo red. The results showed that the optical rotation of PNP was +120° and that it had a triple-helical structure. Besides, PNP was mainly composed of glucose and mannose at the molar ratio of 4.24:1.00. The backbone of PNP was composed of (1→3)-linked-Glc and (1→3)-linked-Man whereas the branches of (1→3,6)-linked- Glc, (1→3,6)-linked-Man and T- Glc. Consistenting with the results of UV-Vis spectra, FT-IR spectroscopy and 1H NMR, indicated that PNP was a complex of polysaccharides and polyphenols. In vitro antioxidant results suggested that PNP was processed with certain scavenging capacity.

References

Oct 10, 2009·Nutrition·Haiping LiGuiji Ma
Nov 3, 2011·International Journal of Biological Macromolecules·Haiping LiGuangchang Pang
Nov 13, 2013·International Journal of Biological Macromolecules·Haiping LiYufeng Xu
Aug 12, 2014·International Journal of Biological Macromolecules·Jiao DouYurong Guo
Aug 27, 2014·International Journal of Biological Macromolecules·Haiping LiLihua Huai
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Aug 3, 2016·International Journal of Biological Macromolecules·Sudhanshu S Behera, Ramesh C Ray
Feb 2, 2017·International Journal of Biological Macromolecules·Naourez KtariRiadh Ben Salah

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Citations

Jun 19, 2018·Natural Product Research·Xiao-Yan YangJi-Kai Liu
Apr 12, 2021·Carbohydrate Polymers·Xiaoyu GuoSteve W Cui

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Methods Mentioned

BETA
RSA

Software Mentioned

nameko

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