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Molecules 2015, 20(4), 5680-5697; doi:10.3390/molecules20045680

Chemical Compositions and Antioxidant Activities of Polysaccharides from the Sporophores and Cultured Products of Armillaria mellea

1
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
2
National Engineering Laboratory for Quality Control Technology of Chinese Herbal Medicines, Beijing 100700, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 19 January 2015 / Revised: 17 March 2015 / Accepted: 25 March 2015 / Published: 31 March 2015
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [1486 KB, uploaded 31 March 2015]   |  

Abstract

Armillaria mellea is a traditional Chinese medicinal and edible mushroom. Many cultured products of A. mellea have been used to develop commercial medicines in recent years. The chemical composition and activities of the major bioactive chemical components—polysaccharides—may be different because of differences in the raw materials used. Four polysaccharides (SP, CMP, CFBP and CFMP) were obtained from wild sporophores and cultured products (including mycelia, fermentation broth and fermentation mixture) of A. mellea. Their yields, carbohydrate contents, monosaccharide compositions, FT-IR spectra, NMR spectroscopy and antioxidant activities were investigated. All of the polysaccharides were composed of xylose, glucose and galactose without protein. Glucose was the dominant monosaccharide in SP, CMP and CFMP, whereas galactose was the dominant monosaccharide in CFBP. SP and CMP showed higher scavenging DPPH and ABTS•+ activities and reducing power among four polysaccharides. The carbohydrate content and corresponding glucose percentage were positive influences on the antioxidant activities, whereas the corresponding xylose and galactose percentage were negative influences. A. mellea polysaccharides are potential natural antioxidants. Polysaccharides from cultured products, especially mycelia, are good substitutes for SP and are also potential sources for both dietary supplements and food industries. View Full-Text
Keywords: Armillaria mellea; polysaccharides; wild sporophores; cultured products; chemical composition; antioxidant activity Armillaria mellea; polysaccharides; wild sporophores; cultured products; chemical composition; antioxidant activity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhang, S.; Liu, X.; Yan, L.; Zhang, Q.; Zhu, J.; Huang, N.; Wang, Z. Chemical Compositions and Antioxidant Activities of Polysaccharides from the Sporophores and Cultured Products of Armillaria mellea. Molecules 2015, 20, 5680-5697.

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