Chain conformation and physicochemical properties of polysaccharide (glucuronoxylomannan) from Fruit Bodies of Tremella fuciformis

Xiaoqi Xu*, Aijun Chen, Xinyan Ge, Sha Li, Tao Zhang, Hong Xu

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Based on its potential bioactivities and sustainable source, polysaccharide (glucuronoxylomannan) from fruit bodies of Tremella fuciformis (TFP) aroused attention in food, pharmaceutical and cosmetic industry. The present study aimed at revealing its chain conformational and physicochemical properties. By using HPSEC-MALLS-Visc-RI measurement, worm-like cylinder model calculation and AFM observation, we manifested that TFP existed as flexible chains in 0.15 M NaCl (pH 7.4) solution, with the persistence length of 9.20 nm and chain diameter of 0.97 nm. Meanwhile, TFP solution exhibited shear-thinning behavior with C* at 5.3 mg mL−1, owning the feature of entangled polysaccharide. TFP solution changed from liquid-like to solid-like behavior as frequency increases, and the crossover points shifted to lower frequencies with concentration increasing. Besides, the strong moisture retention ability of TFP was evaluated. These characteristics indicated that TFP could be utilized to design microstructure system and applied as stabilizer or moisture holding ingredient in food, pharmaceutical and cosmetic system.

Original languageEnglish
Article number116354
JournalCarbohydrate Polymers
Volume245
DOIs
Publication statusPublished - 1 Oct 2020

Keywords

  • Chain conformation
  • Glucuronoxylomannan
  • Moisture absorption and retention capacity
  • Rheological properties
  • Tremella fuciformis
  • Wormlike cylinder model

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