Physical and rheological properties of xanthan gum agglomerated in fluidized bed: Effect of HPMC as a binder

G. Y. Jeong, J. H. Bak, B. Yoo

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

Physical and rheological properties of agglomerated xanthan gum (XG), commonly used as a food thickener for the management of the patients with dysphagia (swallowing difficulty), were investigated at different concentrations (0, 2, 4, and 6% w/w) of hydroxypropyl methylcellulose (HPMC) as a binder in the fluidized bed agglomeration process. Flow characteristics of agglomerated XG powder were evaluated using Carr index (CI) and Hausner ratio (HR). The agglomerated XG powders obtained by HPMC binder exhibited a better flowability and higher porosity than the agglomerated powder without binder due to the size enlargement of XG powder. Dynamic moduli (G′ and G”) of agglomerated XG powders at 2% and 4% HPMC were significantly higher than those of other powders. The tan δ values of agglomerated powders with HPMC binder were much lower than that of an agglomerated powder without HPMC, indicating that their elastic properties were enhanced because of the addition of HPMC binder. Results suggest that the use of HPMC in agglomeration process could considerably enhance the flow characteristics and rheological properties of XG powder.

Original languageEnglish
Pages (from-to)424-428
Number of pages5
JournalInternational Journal of Biological Macromolecules
Volume121
DOIs
StatePublished - Jan 2019

Keywords

  • Agglomeration
  • Hydroxypropyl methylcellulose
  • Rheological property
  • Xanthan gum

Fingerprint

Dive into the research topics of 'Physical and rheological properties of xanthan gum agglomerated in fluidized bed: Effect of HPMC as a binder'. Together they form a unique fingerprint.

Cite this