Formation and Characterization of Zein-Based Oleogels

Tsung, Ko-Lan; Ilavsky, Jan; Padua, Graciela W.

doi:10.1021/acs.jafc.0c00184

Formation and Characterization of Zein-Based Oleogels

Journal Article · Tue Oct 13 00:00:00 EDT 2020 · Journal of Agricultural and Food Chemistry

DOI:https://doi.org/10.1021/acs.jafc.0c00184· OSTI ID:1774129

Tsung, Ko-Lan ^[1]; ^[2]; ^[1]

Univ. of Illinois at Urbana-Champaign, IL (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

Oleogels are interesting as a result of their ability to hold large amounts of oil in a semi-solid gel structure. In the food industry, oleogels are most often investigated as substitutes for saturated and trans fats. In this work, the lyotropic formation of ethanol/zein/oleic acid gels was observed qualitatively and ternary phase diagrams were constructed to map the observations. The viscoelastic parameters G' and G'' were measured to confirm gel formation as observed in phase diagrams. Ultrasmall X-ray scattering was used to study the microstructural organization of ethanol/zein/oleic acid gels. Furthermore, data suggested that the primary unit or building block for gel network structures was the rod-shaped zein molecule. Ultrasmall X-ray data suggested that zein/oleic acid gels have a highly organized microstructure, possibly the result of zein self-assembly. Zein was considered an effective oleogelator in ethanol/zein/oleic acid systems.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1774129

Journal Information:: Journal of Agricultural and Food Chemistry, Journal Name: Journal of Agricultural and Food Chemistry Journal Issue: 46 Vol. 68; ISSN 0021-8561

Publisher:: American Chemical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
USAX
chemical structure
ethanol
lipids
microstructural organization
oleic acid
oleogel
scattering
ternary phase diagrams
zein

Formation and Characterization of Zein-Based Oleogels

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