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dc.contributor.authorHe, Pengfei
dc.contributor.authorZhang, Anqiang
dc.contributor.authorZhang, Fuming
dc.contributor.authorLinhardt, Robert J.
dc.contributor.authorSun, Peilong
dc.identifier.citationStructure and bioactivity of a polysaccharide containing uronic acid from Polyporus umbellatus sclerotia, P. He, A. Zhang, F. Zhang, R. J. Linhardt, P. Sun, Carbohydrate Polymers,152, 222–230, 2016.
dc.descriptionCarbohydrate Polymers,152, 222–230
dc.descriptionNote : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
dc.description.abstractPolyporus umbellatus is a medicinal fungus, has been used in traditional Chinese medicine for thousands years for treatment of edema, scanty urine, vaginal discharge, jaundice and diarrhea. The structure of a soluble polysaccharide (named PUP80S1), purified from the sclerotia of Polyporus umbellatus was elucidated by gas chromatography (GC), GC–mass spectrometry and nuclear magnetic resonance spectroscopy. PUP80S1 is a branched polysaccharide containing approximately 8.5% uronic acid and having an average molecular weight of 8.8 kDa. Atomic force microscopy of PUP80S1 reveals a globular chain conformation in water. Antioxidant tests, Oxygen radical absorption capacity and 2,2-diphenyl-1-picrylhydrazyl radical scavenging assays indicate that PUP80S1 possesses significant antioxidant activity. But the related polysaccharide, PUP60S2, which contains more uronic acid residues and a higher level of branching, shows better antioxidant activity. These results suggest that structure features of polysaccharides play an important role in their physiological functions.
dc.description.sponsorshipNational Science and Technology Program during the Twelfth Five-year Plan Period
dc.relation.ispartofThe Linhardt Research Labs Online Collection
dc.relation.ispartofRensselaer Polytechnic Institute, Troy, NY
dc.relation.ispartofCarbohydrate Polymers
dc.subjectChemistry and chemical biology
dc.subjectChemical and biological engineering
dc.subjectBiomedical engineering
dc.titleStructure and bioactivity of a polysaccharide containing uronic acid from Polyporus umbellatus sclerotia
dc.rights.holderIn Copyright : this Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.relation.departmentThe Linhardt Research Labs.
dc.relation.departmentThe Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS)

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