High-pressure homogenized citrus fiber cellulose dispersions: Structural characterization and flow behavior

M.R. Serial, E. Velichko, T. Nikolaeva, R. den Adel, C. Terenzi, W.G. Bouwman, J.P.M. van Duynhoven*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


Functionalized biomass waste sources of cellulose have drawn attention due to their high availability and sustainability properties. In this work we characterize the structural and flow properties of high-pressure homogenized citrus fiber cellulose dispersions, employing SAXS, rheology and rheo-MRI techniques. The high-pressure treatment disrupts the microfibrillar network within the citrus fibers, but leaves the individual microfibrils intact. Under moderate shear (0.1-100 s-1) in a confined (<1 mm) geometry, these functionalized citrus fiber cellulose dispersions exhibit thixotropic shear-banding behavior accompanied by cooperative flow of microfibril flocs with correlation lengths ξ ~ 100 μm. The presented findings form a basis towards understanding and manipulating the structural and rheological properties of non-wood biomass cellulose microfibrils under industrially-relevant conditions.

Original languageEnglish
Article number100237
JournalFood Structure
Publication statusPublished - Oct 2021


  • cellulose
  • Citrus fiber
  • high-pressure homogenization
  • rheo-MRI
  • SAXS


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