Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Sci Food Agric. 2013 Oct;93(13):3225-30. doi: 10.1002/jsfa.6161. Epub 2013 May 15.

Structure analysis and antimutagenic activity of a novel salt-soluble polysaccharide from Auricularia polytricha.

Author information

  • 1Institute of Food and Biological Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310035, China.

Abstract

BACKGROUND:

Auricularia polytricha is known to be a highly nutritious foodstuff. We report here the purification, structure characterization and antimutagenic activity in vivo of a 0.9% NaCl solution-soluble polysaccharide (SSP) from the mycelia of A. polytricha.

RESULTS:

Analysis by high-performance liquid chromatography coupled to a TSK-G5000PWXL column and gel filtration chromatography on Sephacryl S-400 HR indicated that SSP is homogeneous with an average molecular weight of about 9.30 × 10(5) Da. The structure of SSP was revealed by chemical methods, Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy. Results indicated that SSP is a glucan consisting of a1,3-β-glucan, 1,6-α-glucan, 1,4-α-glucan and 1,3-α-glucan backbone with a single 1,6-α-d-glucopyranosyl side-branching unit on every nine residues, on average, along the main chain. Atomic force microscopy indicates the presence of macromolecular species in morphology and shows a clear association of prolate particle. Meanwhile, SSP was found to significantly preventing micronuclei in polychromatic erythrocytes and reticulocytes of mice (P < 0.01).

CONCLUSION:

These results indicate that polysaccharide SSP from A. polytricha exhibits antimutagenic activity against the in vivo DNA-damaging effect of the indirectly acting alkylating agent cyclophosphamide.

© 2013 Society of Chemical Industry.

KEYWORDS:

Auricularia polytricha; antimutagenic activity; polysaccharide; structure

PMID:
23553078
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for John Wiley & Sons, Inc.
    Loading ...
    Write to the Help Desk