Design and physicochemical properties of long and stiff fatty low molecular weight oleogelators

Delbecq, Frédéric; Nguyen, Rémi; Hecke, Eric Van; Len, Christophe

doi:10.1016/j.molliq.2019.111708

Cited by 8 publications

(3 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, oils obtain a semi-solid/solid consistency, and their high nutritional value is maintained [11]. Gelling agents are usually systems containing fatty acid and fatty alcohol (e.g., stearyl alcohol and stearic acid mixture, behenyl alcohol and behenic acid mixture) [12], and their derivatives (e.g., thioester derivative) [13]. There are numerous scientific reports proving the solidifying properties of many chemicals, e.g., monoacylglycerols, polysaccharides, plant and animal waxes [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Rapeseed Oil in New Application: Assessment of Structure of Oleogels Based on their Physicochemical Properties and Microscopic Observations

et al. 2020

View full text Add to dashboard Cite

The aim of the study was to analyze the effect of the type of gelling substance on the selected physicochemical properties of oleogels. Rapeseed oil (RO) and 5% w/w of one of the following structuring compounds (SC) were used for their production waxes: sunflower (SUN), candelilla (CAN), bees white (BW), bees yellow (BY), or monoacylglycerols (MAG). The ability of SC to form a network in RO was assessed on the basis of an analysis of the texture of oleogels (hardness and spreadability test, stability determined by the centrifugal method). Oxidative stability was determined using the Rancimat test. In addition, the microstructure of an oleogel samples was observed at a magnification of 600 times in polarized light and in a bright field. Differences in the brightness and color of the samples were also assessed using the CIELab reflection method. The highest hardness (5.52 N) and physical stability (99.67%) were found in oleogel with candelilla wax. A higher value of the force causing deformation of the sample indicates a denser network of oil gel, which was confirmed by the microscopic images analyzed in the work. The organogel with CAN had the shortest (on average 8.49 nm) and the most regularly distributed crystals compared to other samples. The lowest values of organogel strength and spreadability test parameters (e.g., firmness, work of shear, stickness, work of adhesion), which were respectively 0.73 N, 4.39 N, and 9.74 N mm, while −4.87 N and −2.68 N mm were obtained with the variant, which was yellow beeswax. Considering the texture results obtained and the centrifugal stability, it was found that organogels with yellow beeswax were characterized by the worst structuring of rapeseed oil. Sunflower wax was considered the best among the analyzed gelling agents (under the conditions of the experiment). The organogel with its 5% w/w share was distinguished by the closest to the white color and texture most reminiscent of cream. In addition, it had the highest work of shear value and the longest induction time (6.8 h) in the Rancimat test.

show abstract

Section: Introductionmentioning

confidence: 99%

Rapeseed Oil in New Application: Assessment of Structure of Oleogels Based on their Physicochemical Properties and Microscopic Observations

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Inspired by these natural processes, scientists turned their attention to the supramolecular self-assembled functional materials with multiple stimuli-responsiveness to cope with more complex and accurate application scenarios in recent years. [6][7][8][9] The supramolecular self-assemblies are usually constructed by molecules via noncovalent weak intermolecular bonds instead of covalent bonds, such as electrostatic interaction, 18,19 hydrogen bonds, 20,21 p-p interactions, 22,23 van der Waals forces, 24,25 and so forth. These weak interactions are sensitive to the external environment conditions such as temperature, pH, ion strength, molecular conguration and so on, [26][27][28][29] and thus leading to the microstructures and macroscopic properties (such as viscosity, turbidity, electroconductivity) of supramolecular selfassemblies could be easily adjusted.…”

Section: Introductionmentioning

confidence: 99%

pH and light dual stimuli-responses of mixed system of 2-hydroxyl-propanediyl-α,ω-bis(dimethyldodecyl ammonium bromide) and trans-ortho-hydroxyl cinnamic acid

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Low molecular weight organogelators can induce gelation of oils at significantly lower concentrations. The gelled structures exhibit rheological properties closer to solid materials at an optimum temperature [ 5 ]. Natural waxes have shown promising outcomes due to their easy accessibility, little cost, and a great extent of structuring.…”

Section: Introductionmentioning

confidence: 99%

Effect of Biodegradable Hydrophilic and Hydrophobic Emulsifiers on the Oleogels Containing Sunflower Wax and Sunflower Oil

Bharti

Kim

Cerqueira

et al. 2021

Gels

View full text Add to dashboard Cite

The use of an appropriate oleogelator in the structuring of vegetable oil is a crucial point of consideration. Sunflower wax (SFW) is used as an oleogelator and displays an excellent potential to bind vegetable oils. The current study aimed to look for the effects of hydrophobic (SPAN-80) and hydrophilic (TWEEN-80) emulsifiers on the oleogels prepared using SFW and sunflower oil (SO). The biodegradability and all formulations showed globular crystals on their surface that varied in size and number. Wax ester, being the most abundant component of SFW, was found to produce fibrous and needle-like entanglements capable of binding more than 99% of SO. The formulations containing 3 mg of liquid emulsifiers in 20 g of oleogels showed better mechanical properties such as spreadability and lower firmness than the other tested concentrations. Although the FTIR spectra of all the formulations were similar, which indicated not much variation in the molecular interactions, XRD diffractograms confirmed the presence of β′ form of fat crystals. Further, the mentioned formulations also showed larger average crystallite sizes, which was supported by slow gelation kinetics. A characteristic melting point (Tm~60 °C) of triglyceride was visualized through DSC thermograms. However, a higher melting point in the case of few formulations suggests the possibility of even a stable β polymorph. The formed oleogels indicated the significant contribution of diffusion for curcumin release. Altogether, the use of SFW and SO oleogels with modified properties using biodegradable emulsifiers can be beneficial in replacing saturated fats and fat-derived products.

show abstract

Design and physicochemical properties of long and stiff fatty low molecular weight oleogelators

Cited by 8 publications

References 41 publications

Rapeseed Oil in New Application: Assessment of Structure of Oleogels Based on their Physicochemical Properties and Microscopic Observations

Rapeseed Oil in New Application: Assessment of Structure of Oleogels Based on their Physicochemical Properties and Microscopic Observations

pH and light dual stimuli-responses of mixed system of 2-hydroxyl-propanediyl-α,ω-bis(dimethyldodecyl ammonium bromide) and trans-ortho-hydroxyl cinnamic acid

Effect of Biodegradable Hydrophilic and Hydrophobic Emulsifiers on the Oleogels Containing Sunflower Wax and Sunflower Oil

Contact Info

Product

Resources

About