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Effect of drying method on physicochemical properties and antioxidant activities of Hohenbuehelia serotina polysaccharides

Paper ID Volume ID Publish Year Pages File Format Full-Text
34157 45005 2016 9 PDF Available
Title
Effect of drying method on physicochemical properties and antioxidant activities of Hohenbuehelia serotina polysaccharides
Abstract

•Physicochemical properties of HSPs obtained by different drying methods were investigated.•Antioxidant activities of different drying HSPs were compared.•The molecular weights of HSPs were evaluated by HPGPC.•FD-HSP possessed amorphous structure and the most significant antioxidant capacities.

In this study, the polysaccharides (AD-HSP, HD-HSP-1, HD-HSP-2 and FD-HSP) were respectively obtained from Hohenbuehelia serotina through different drying process including air-drying, hot air-drying—50 °C, hot air-drying—75 °C and freeze vacuum-drying. The effects of drying methods on the physicochemical properties and biological activities of the polysaccharides were evaluated on the basis of viscosity analysis, FT-IR spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and antioxidant measurements in vitro, respectively. The results suggested that drying techniques played an important role on the structural characteristics and antioxidant activities of H. serotina polysaccharides. Compared with AD-HSP, HD-HSPs, FD-HSP possessed the greatest intrinsic viscosity with amorphous and tight structure, higher scavenging capacities on ABTS and hydroxyl radicals, more significant reducing power. Therefore, freeze vacuum drying method serves as a good choice for keeping the antioxidant activities of H. serotina polysaccharides.

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Keywords
Hohenbuehelia serotina; Polysaccharides; Drying method; Physicochemical property; Structural characteristic; Antioxidant activity
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Effect of drying method on physicochemical properties and antioxidant activities of Hohenbuehelia serotina polysaccharides
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 51, Issue 8, August 2016, Pages 1100–1108
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us