Soybean oil

About: Soybean oil is a research topic. Over the lifetime, 11154 publications have been published within this topic receiving 234952 citations. The topic is also known as: soya oil & soy bean oil.

Microemulsions from vegetable oil and aqueous alcohol with 1-butanol surfactant as alternative fuel for diesel engines

Abstract: Hybrid fuel microemulsions are prepared from vegetable oil, methanol or ethanol, a straight-chain isomer of octanol, and optionally water. The fuels are characterized by a relatively high water tolerance, acceptable viscosity, and performance properties comparable to No. 2 diesel fuel.

Soybean Oil Is More Obesogenic and Diabetogenic than Coconut Oil and Fructose in Mouse: Potential Role for the Liver

Abstract: The obesity epidemic in the U.S. has led to extensive research into potential contributing dietary factors, especially fat and fructose. Recently, increased consumption of soybean oil, which is rich in polyunsaturated fatty acids (PUFAs), has been proposed to play a causal role in the epidemic. Here, we designed a series of four isocaloric diets (HFD, SO-HFD, F-HFD, F-SO-HFD) to investigate the effects of saturated versus unsaturated fat, as well as fructose, on obesity and diabetes. C57/BL6 male mice fed a diet moderately high in fat from coconut oil and soybean oil (SO-HFD, 40% kcal total fat) showed statistically significant increases in weight gain, adiposity, diabetes, glucose intolerance and insulin resistance compared to mice on a diet consisting primarily of coconut oil (HFD). They also had fatty livers with hepatocyte ballooning and very large lipid droplets as well as shorter colonic crypt length. While the high fructose diet (F-HFD) did not cause as much obesity or diabetes as SO-HFD, it did cause rectal prolapse and a very fatty liver, but no balloon injury. The coconut oil diet (with or without fructose) increased spleen weight while fructose in the presence of soybean oil increased kidney weight. Metabolomics analysis of the liver showed an increased accumulation of PUFAs and their metabolites as well as γ-tocopherol, but a decrease in cholesterol in SO-HFD. Liver transcriptomics analysis revealed a global dysregulation of cytochrome P450 (Cyp) genes in SO-HFD versus HFD livers, most notably in the Cyp3a and Cyp2c families. Other genes involved in obesity (e.g., Cidec, Cd36), diabetes (Igfbp1), inflammation (Cd63), mitochondrial function (Pdk4) and cancer (H19) were also upregulated by the soybean oil diet. Taken together, our results indicate that in mice a diet high in soybean oil is more detrimental to metabolic health than a diet high in fructose or coconut oil.

Soybean oil and beef tallow alcoholysis by acid heterogeneous catalysis

Abstract: Sulfonated polystyrene compounds (SPS) were synthesized from linear polystyrene (PS), leading to catalytically active polymeric materials with sulfonation degrees between 5.0 and 6.2 mmol SO 3 H/g of dry polymer. Catalyst performance was evaluated in beef tallow and soybean oil transesterification with ethanol and methanol. The SPS were used at 20 mol% of –SO 3 H groups in relation to the oil mass. Methanol:oil molar ratios of 3:1, 6:1, 9:1, and 100:1 were employed, and the reactions lasted between 3 and 18 h. The SPS samples were insoluble in the reaction media and led to conversions of 85 and 75% of refined soybean oil and beef tallow with a 53 mg KOH/g acid number, respectively. There was an increase in ester production for reactions carried out at higher methanol:oil molar ratio and, in some cases, products with as much as 94% methyl ester content were obtained. Therefore, sulfonated polymeric compounds obtained from linear polystyrene are efficient catalysts for the alcoholysis of refined vegetable oils and raw materials containing high acid numbers.

Toughened bio-based epoxy blend network modified with transesterified epoxidized soybean oil: synthesis and characterization

Abstract: In the current study, soybean oil was epoxidized to form epoxidized soybean oil (ESO), which was then transesterified by a base catalyzed process to form epoxy methyl soyate (EMS), which was subsequently confirmed through FTIR and 1H NMR. In the second step, the EMS bioresin was blended with a petroleum based epoxy (DGEBA) in different composition ratios as a reactive diluent and their various properties were compared with epoxidized soybean oil (ESO) and commercial diluent (alkyl(C12–C14) glycidyl ether (AGE)) based epoxy blends. The rheological behavior of the pure epoxy, bioresins (ESO and EMS), AGE and modified epoxy blends was studied by applying the Cross model to investigate the flow behavior at variable shear rates. The critical stress intensity factor and critical strain energy release rate of all types of blends were determined using a single edge notch test, and the results were compared. It is observed that EMS has a comparable viscosity with AGE at both low and high shear rates and it also toughened the virgin epoxy effectively. Differential scanning calorimetry (DSC) study shows an increase in the heat of curing reaction by the incorporation of a diluent, which confirms better contact with the curing agent, but the peak temperature shifts towards a higher value. The mechanical, thermal and thermo-mechanical properties of the EMS based system are found to be improved. The high intensity peak of the loss tangent curve indicates the superior damping properties of the EMS based formulation under vibrating conditions.