Evaluation of Oleogels Stabilized by Particles of Birch Outer Bark Extract through a Novel Approach

Sanita Vitolina (Corresponding Author), Rudolfs Berzins, Janis Rizhikovs, Daniela Godina, Zoltán Márk Horvath, Konstantins Logviss, Arturs Teresko, Aigars Paze

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
15 Downloads (Pure)

Abstract

Structuring liquid oils into oleogels using natural and abundant biomass components as gelling agents is of great significance in fields such as foods, pharmaceuticals, and cosmetics. In this work, a more energy-efficient and technologically simpler approach for directly preparing birch outer bark extract particles containing oleogel was used. This method involves introducing birch outer bark extract particles into the oil phase directly from the extract solution, combining both the evaporation of solution and gel formation. As a result, stable oleogels of various vegetable oils (sunflower, almond, olive, and hemp seed) were obtained with birch outer bark extract particle contents of 4–10%. Infrared spectroscopy and particle size analysis confirmed that when increasing the content of extract particles in the oil, increasing self-assembly of extract particles via hydrogen bonding occurs, leading to the formation of a more structured network. This is consistent with gel strength values from rheological tests of oleogels, which also increased with particle concentration. The obtained oleogels showed important properties such as good tolerance to time-dependent deformation, shear thinning, and thermoreversibility.

Original languageEnglish
Article number911
JournalGels
Volume9
Issue number11
DOIs
Publication statusPublished - Nov 2023

Keywords*

  • betulin
  • birch outer bark extract
  • gel strength
  • oil structuring
  • oleogel
  • rheology
  • vegetable oil

Field of Science*

  • 1.4 Chemical sciences
  • 2.4 Chemical engineering
  • 2.5 Materials engineering

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

Fingerprint

Dive into the research topics of 'Evaluation of Oleogels Stabilized by Particles of Birch Outer Bark Extract through a Novel Approach'. Together they form a unique fingerprint.

Cite this