Emulsion gels mimic the rheological properties of solid and semi-solid fats, offering a viable solution to replace conventional fats in low-fat food formulations. In this study, gel emulsions stabilized with stigmasterol (ST) and polyglycerol polyricinoleate (PGPR) complexes were prepared. Initially, we examined the effect of the ST/PGPR complex on the mechanism of gel emulsion stabilization. Our findings revealed that the gel emulsion formulated with 3% PGPR and ST exhibited a robust structure, effectively stabilizing the entire system and ensuring uniform distribution, and increasing ST concentration led to greater stability of the gel emulsion system. Stability assessments demonstrated that gel emulsions containing 3% PGPR and varying ST concentrations exhibited remarkable thermal stability and effectively delayed oil oxidation. These results underscore the high stability of gel emulsions stabilized with the ST/PGPR complex, highlighting their potential as a margarine substitute.
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http://dx.doi.org/10.1016/j.fochx.2024.101636 | DOI Listing |
Int J Biol Macromol
December 2024
Department of Chemistry, Faculty of Food Technology, University of Agriculture, Balicka St. 122, PL-30-149 Cracow, Poland; Department of Product Packaging, Cracow University of Economics, Rakowicka 27, PL-31-510 Cracow, Poland. Electronic address:
Effect of different evening primrose oil content (1-20 %) on the rheological, mechanical, textural and microstructure of furcellaran/whey protein isolate emulsion gels were investigated at neutral, unmodified pH environment. The results indicate that, irrespective of the concentration, the oil acted as an inactive filler and was not chemically bound in the polymer network but only physically immobilized in it. The increasing oil amount in the material from 1 to 20 % resulted in a percentage decrease in hardness (52 %), gumminess (71 %) and stress relaxation ratio (17 %) which means that presence of the hydrophobic components weakens the structure of the material, but all samples exhibit elastic behaviour.
View Article and Find Full Text PDFFood Chem
December 2024
College of Life Science, South-Central Minzu University, Wuhan, Hubei 430074, China.
The effect of magnetic field on the properties of emulsified gels containing myofibrillar protein (MP-emulsified gels) with different salt concentration (0, 0.2, 0.4, 0.
View Article and Find Full Text PDFNat Commun
December 2024
Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China.
Large-amount encapsulation and subsequent expressing are common characteristics for many biomedical applications, such as cosmetic creams and medical ointments. Emulsion gels can accomplish that, but often undergo exclusive, complex, multiple synthesis steps, showing extremely laborious and non-universal. The method here is simple via precisely interfacial engineering in homogenizing a nanoparticle aqueous dispersion and a polymer oil solution, gaining interfacial 45° three-phase-contact-angle for the nanoparticle that can bridge across oil emulsions' interfaces and ultimately form interconnected macroscopic networks.
View Article and Find Full Text PDFJ Sci Food Agric
December 2024
College of Food Science and Engineering, Yangzhou University, Yangzhou, China.
Background: Pickering emulsions prepared with octenyl succinic anhydride-modified starch (OSAS) show significant promise as replacements for animal fat. However, the underlying mechanism of incorporating an OSAS-based Pickering emulsion into a myofibrillar protein (MP) gel and its impact on the gel properties remain poorly understood. In this study, the effects of OSAS at varying concentrations (0-10.
View Article and Find Full Text PDFFood Chem
December 2024
Key Laboratory of Dairy Science (Northeast Agricultural University), Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China; College of Food Science and Engineering, Guiyang University, Guiyang 550005, China. Electronic address:
This work elucidated the digestion behavior of low-oil phase Pickering emulsion gel (LOPPEG) stabilized by whey protein isolate (WPI) -γ-Oryzanol (γO) aggregated particles and interfacial adsorption properties of its simulated digestion products. Initially, following simulated digestion, WPI-γO LOPPEG exhibited lower free fatty acid release and protein digestibility compared to WPI LOPPEG. WPI-γO LOPPEG maintained lower interfacial tension and higher interfacial thickness than WPI LOPPEG.
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