| Literature DB >> 20430053 |
Xiang Ding1, Jie Tang, Mei Cao, Chun-Xiao Guo, Xia Zhang, Jing Zhong, Jie Zhang, Qun Sun, Su Feng, Zhi-Rong Yang, Jian Zhao.
Abstract
In this study, structural features of Tricholoma matsutake polysaccharide (TMP-A) were investigated by a combination of infrared (IR) spectra, gas chromatography-mass spectrometry (GC-MS), nuclear magnetic resonance (NMR) spectroscopy. The results indicated that TMP-A had a backbone of 1,4-beta-d-glucopyranose residue which branches at O-6 based on the experimental results. The branches were mainly composed of an (1-->3)-alpha-d-galactopyranose residue, and terminated with alpha-d-xylopyranose residue. The antioxidant activity of TMP-A was evaluated with several biochemical methods, including DPPH(-) radical scavenging, hydrogen peroxide scavenging, superoxide anion radical scavenging. The results indicated that TMP-A showed strong antioxidant. In the in vitro antioxidant assay by MTT method, TMP-A could attenuate PC12 cell damage significantly caused by hydrogen peroxide. Copyright 2010 Elsevier B.V. All rights reserved.Entities:
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Year: 2010 PMID： 20430053 DOI： 10.1016/j.ijbiomac.2010.04.010
Source DB: PubMed Journal: Int J Biol Macromol ISSN： 0141-8130 Impact factor: 6.953