| Literature DB >> 26794945 |
Jin-Long Xu1, Jing-Cheng Zhang2, Yong Liu1, Han-Ju Sun1, Jun-Hui Wang3.
Abstract
A polysaccharide fraction (FMPS) was isolated from floral mushrooms cultivated in Huangshan Mountain, and the rheological properties of FMPS in aqueous solutions were investigated. The FMPS solution showed shear-thinning behavior at 25°C. Dynamic viscoelastic tests revealed that G' and G″ exhibited strong dependences on the concentration and temperature. The FMPS/water system exhibited sol and weak gel behavior with the change of concentration and temperature. The exponent n of G'∼ω(n) and tan δ also exhibited strong dependences on the concentration and temperature. The gel point (cgel) of FMPS solution was 1.16×10(-2)g/mL at 15°C, and the Tgel of 1.4×10(-2)g/mL FMPS solution was 20.6°C. Dynamic frequency sweep measurements indicated that the FMPS gel system was stable in the selected range of frequency. The heating-cooling process proved that the sol-gel transition of FMPS in aqueous solutions was thermally reversible.Entities:
Keywords: Floral mushroom; Polysaccharides; Rheological properties
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Year: 2015 PMID： 26794945 DOI： 10.1016/j.carbpol.2015.12.011
Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381