Improvement of powder properties of milk protein isolate by fluidised bed agglomeration with guar gum binder

Abstract

A goal of this study was to investigate the influence of fluidised bed agglomeration process with guar gum (GG) binder (0-0.3%) on the physical and rheological properties of agglomerated milk protein isolate (MPI). Larger and more porous particles were formed by the agglomeration process, resulting in an improvement in powder flowability, wettability and solubility. The agglomerate with 0.1% GG binder exhibited higher viscoelastic properties than other agglomerates, with viscoelastic moduli values decreasing as the binder concentration increased (0.1-0.3%). The findings demonstrate that the agglomeration process with GG improved the powder characteristics of MPI and influenced its rheological properties. Fluidised bed agglomeration process using guar gum as a binder increased particle size and porosity of milk protein isolate, resulting in an enhancement of powder characteristics. image