Many physical properties (e.g., hardness, texture, rheology, and spreadability) of lipid‐based products largely depend on the extent crystallization transformation lipids, their network formation. Therefore, many studies have focused controlling lipids in order to determine functionality lipid crystals. Both internal external factors greatly affect processes crystallization. The most important are polymorphism, which depends variation fatty acid moieties, composition or blending different...

Rice bran wax (RBX) obtained during rice oil purification can form organogels in edible oils. The kinetics of crystallization and the viscous properties RBX were studied using differential scanning calorimetry (DSC), viscosity changes with varying temperature, hardness measurements by penetrometry, synchrotron radiation X-ray diffraction (SR-XRD). prepared concentrations 1%, 3%, 6%, 10% on a weight basis salad oil, olive camellia oil. liquid type had no significant effect melting...

Abstract Effects of application ultrasonic power (20 kHz, 100 W) on the crystallization behavior tripalmitoylglycerol (PPP) and cocoa butter have been examined in terms rate nucleation polymorphic control. High‐purity PPP (>99%) low‐purity (>80%) samples were employed to mimic real fat systems, which usually higher concentrations minor components addition main component. For both high‐purity PPP, accelerated as measured by induction time for occurrence crystals number nucleated. As...

The phase behavior of PPO (sn-1,2-dipalmitoyl-sn-3-oleoylglycerol) and POP (sn-1,3-dipalmitoyl-sn-2-oleoylglycerol) binary mixture was examined using differential scanning calorimetry, conventional synchrotron radiation X-ray diffraction (XRD), highly pure samples. A molecular compound, βC, formed at the 1:1 concentration ratio POP, giving rise to two monotectic phases PPO/compound compound/POP in a juxtapositional way. βC has long spacing value 4.1 nm double chain length structure. In...

Polymorphic crystallization of SOS (sn-1,3-distearoyl-2-oleoyl glycerol) has been studied with a time-resolved synchrotron radiation X-ray diffraction method (SR-XRD) using pure samples. five polymorphs: α, γ, β', β2, and β1. Emphasis was placed on analyzing the events melt-mediated transformation, in which more stable forms (γ, β2) induced by rapid melting less forms. This mode is closely related to long running dispute concerning "memory effect" possibly occurring polymorphic...

The crystallization behavior of tripalmitin (PPP) and trilaurin (LLL) without with the application ultrasonic power is investigated in situ using synchrotron radiation time-resolved small-angle X-ray scattering (SAXS) wide-angle (WAXS) simultaneous measurement. Without ultrasound application, both polymorphic forms β' β crystallized melt each substance. With treatment melt, following effects were observed: (i) a marked decrease induction times for PPP LLL, (ii) an increased nucleation rate,...

We performed scanning microbeam small-angle X-ray diffraction (micro-SAXD) experiments, differential calorimetry (DSC) analysis, and optical microscopic observation of palm mid fraction (PMF) crystals in oil-in-water emulsion droplets. The micro-SAXD experiment was by irradiating a synchrotron radiation having an area 5 x microm(2) onto different positions on 50 microm diameter droplet after the crystallization PMF chilling at degrees C. patterns were recorded with two-dimensional (2D)...

Using macrobeam and microbeam techniques, we performed synchrotron radiation X-ray diffraction (SR-XRD) analyses of fat crystallization in water-in-oil (W/O) emulsion, combination with DSC polarized optical microscopic observation. Particular focus was on the fats around water droplets W/O emulsion systems using food emulsifiers polyglycerol polyricinoleate (PGPR) alone (PGPR emulsion), PGPR monobehenoylglycerol (MB) (PGPR+MB emulsion). We obtained following results: (1) SR-XRD confirmed...

Abstract We performed differential scanning calorimetry (DSC) and synchrotron radiation X‐ray diffraction (SR‐XRD) experiments of polymorphic structures binary mixing characteristics the enantiomers 1‐oleoyl‐2,3‐dipalmitoyl‐ sn ‐glycerol (S‐OPP) 1,2‐dipalmitoyl‐3‐oleoyl‐ (R‐PPO). In two enantiomers, oleic palmitic acid moieties are asymmetrically connected at ‐1 ‐3 positions glycerol groups, with moiety ‐2 position. Pure enantiomer samples (>99 %) were synthesized employed throughout this...

Abstract This paper reports the experimental results of processes used for formation whipped oils composed vegetable (salad oil) and high‐melting fat crystals [fully hydrogenated rapeseed oil rich in behenic acid (FHR‐B)]. No emulsifier was added to form this oil. Microprobe FT‐IR spectroscopy, synchrotron radiation microbeam X‐ray diffraction (SR‐μ‐XRD), polarized optical microscopy, differential scanning calorimetry (DSC) were employed observe fine crystal particles most stable polymorph β...

Abstract Thermodynamic and polymorphic behavior of POP ( sn ‐1,3‐dipalmitoyl‐2‐oleoylglycerol) OPO ‐1,3‐dioleoyl‐2‐palmitoylglycerol) binary mixtures was examined using differential scanning calorimetry conventional synchrotron radiation X‐ray diffraction. A molecular compound, β C , formed at the 1:1 (w/w) concentration ratio OPO, giving rise to two monotectic phases POP/compound compound/OPO in juxtaposition. has a long‐spacing value 4.2 nm with double chainlength structure melting point...

Abstract The phase behavior of the sn ‐1,3‐dipalmitoyl‐2‐oleoylglycerol (PPP‐POP) binary mixture system was studied by powder X‐ray diffraction with synchrotron radiation and differential scanning calorimetry. results showed that immiscible phases were observed in metastable most stable forms. In particular, enabled us to reveal monotectic nature α as a kinetic behavior. equilibrium diagram PPP‐POP is divided into two regions. POP concentration ratios below 40%, solid‐state transformation...

Microstructural investigation of palm oil (PO) containing 8% monopalmitin (MP) was performed using synchrotron radiation microbeam (beam area 5 × μm2) X-ray diffraction (SR-μ-XRD). The blend isothermally crystallized at 20 °C and analyzed shortly after reaching the crystallization temperature aging °C. SR-μ-XRD technique allowed demonstration template effect monoacylglycerol (MAG) by showing that PO crystals were orientated previously MP. Interactions through palmitic acid moiety in MP must...

We systematically examined the phase behavior of binary mixtures mixed-acid triacylglycerols (TAGs) containing palmitic and oleic acid moieties 1,3-dioleoyl-2-palmitoyl-glycerol (OPO), 1,2-dipalmitoyl-3-oleoyl-rac-glycerol (PPO), 1,2-dioleoyl-3-palmitoyl-rac-glycerol (OOP), which are widely present in natural fats employed food, pharmaceutical, cosmetic industries. Differential scanning calorimetry X-ray diffraction methods were applied to observe mixing PPO/OPO, OOP/OPO, PPO/OOP under...

We observed the crystallization and polymorphic transformation processes of palm stearin (PS) dispersed in nanometer-size oil-in-water emulsion droplets (nanometer-size droplets, average diameter 120 ± 30 nm) using DSC in-situ synchrotron radiation X-ray diffraction (SR-XRD) techniques. The were prepared by four types highly hydrophilic polyglycerine fatty-acid mono-esters, which a polar moiety was made 10 polymerized glycerins (decaglycerine, 10G) nonpolar moieties lauric, myristic,...

Polymorphic influences on the phase behavior of three types binary mixtures saturated monoacid triacylglycerols (TAGs), trilaurin/trimyristin (LLL/MMM), trilaurin/tripalmitin (LLL/PPP), and trilaurin/tristearin (LLL/SSS), were examined by small- wide-angle X-ray scattering (SAXS/WAXS) using synchrotron radiation. The carbon numbers (Cn) for fatty acid chains TAGs are 12 (LLL), 14 (MMM), 16 (PPP), 18 (SSS). In LLL/MMM system, miscible occurred in metastable α β' forms, whereas most stable β...

It was found that even-numbered n-alkanes (number of carbon atoms = 16−22) had a crystal structure has not been reported for their bulk phase when the were nucleated in oil-in-water emulsion droplets with additives. We measured wide- and small-angle X-ray diffraction signals, using synchrotron radiation, at same time nucleation determined by differential scanning calorimetry. When high-melting-point surfactants added to droplets, pseudohexagonal orthorhombic crystals nucleated. In contrast,...

Abstract 1,3‐Dipalmitoyl‐2‐oleoyl‐ sn ‐glycerol (POP) and 1,2‐dioleoyl‐3‐palmitoyl‐ rac (OOP) are two major molecular species that account for roughly half of the total triacylglycerols in palm oil. The binary phase behavior a POP/OOP mixture plays an important role crystallization We conducted thermodynamic kinetic studies OOP its mixtures with POP using differential scanning calorimetry X‐ray diffraction conventional generator synchrotron radiation. found has polymorphs, α as metastable...