Autoxidation of Mono-, Di-, and Trilinoleoyl Glycerols at Different Concentrations

Sakuramoto, Yuji; Shima, Masasuke; Adachi, Shuji

doi:10.1271/bbb.60572

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…Our polyunsaturated MG samples were tested by this assay at each stage of preparation, including before and after vortexing/sonication for 30 min, and no detectable oxidative damage was found. This result is consistent with literature showing negligible autoxidation for polyunsaturated monoglycerides even when concentrated solutions (25% (w/w) in 1-undecanol) were held in air at 65 °C for 4 h …”

Section: Methodssupporting

confidence: 93%

Enthalpic Effects of Chain Length and Unsaturation on Water Permeability across Droplet Bilayers of Homologous Monoglycerides

et al. 2017

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A deeper understanding of unassisted passive transport processes can better delineate basic lipid dynamics in biological membranes. A droplet interface bilayer (DIB) is made by contacting two aqueous droplets covered with a lipid monolayer, and has increasingly been employed as a model artificial biological membrane. In this study, we have investigated the effect of acyl chain structure of amphiphilic monoglycerides on the osmotic permeability of water across DIB membranes composed of these monoglycerides, where the acyl chain length (C14-C24), number of double bonds (1-4), and the position of double bond are varied systematically along the acyl chains. Both permeability values and activation energies have been extracted for water transport across a lipid bilayer formed of a homologous series of lipids, allowing us to make ready comparisons between the different lipids and potentially better elucidate the contributions that molecular motifs make to the permeation process.

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Section: Methodssupporting

confidence: 93%

Enthalpic Effects of Chain Length and Unsaturation on Water Permeability across Droplet Bilayers of Homologous Monoglycerides

et al. 2017

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“…From 290 to 310 K, the density predicted by the CG models and corresponding available experimental data from refs , are in good agreement (error within 0.6%). At 340 K, the density decreased to 0.751 g/cm 3 , as compared to the experimental value of 0.740 g/cm 3 (338 K) (an error of 1.5%) . As the temperature increased from 270 to 350 K, the enthalpy of vaporization decreased from 20.69 to 18.73 kcal/mol (Figure b).…”

Section: Resultsmentioning

confidence: 65%

“…At 340 K, the density decreased to 0.751 g/cm 3 , as compared to the experimental value of 0.740 g/cm 3 (338 K) (an error of 1.5%). 67 As the temperature increased from 270 to 350 K, the enthalpy of vaporization decreased from 20.69 to 18.73 kcal/ mol (Figure 7b). The self-diffusion coefficients predicted by the CG models were higher as compared to the experimental values at the simulated temperatures (Figure 7c).…”

Section: Pso Algorithmmentioning

confidence: 99%

Development of New Transferable Coarse-Grained Models of Hydrocarbons

Bejagam

Deshmukh

2018

J. Phys. Chem. B

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We have utilized an approach that integrates molecular dynamics (MD) simulations with particle swarm optimization (PSO) to accelerate the development of coarse-grained (CG) models of hydrocarbons. Specifically, we have developed new transferable CG beads, which can be used to model the hydrocarbons (C5 to C17) and reproduce their experimental properties with good accuracy. First, the PSO method was used to develop the CG beads of the decane model represented with a 2:1 (2-2-2-2-2) mapping scheme. This was followed by the development of the nonane model described with hybrid 2-2-3-2 and 3:1 (3-3-3) mapping schemes. The force-field parameters for these three CG models were optimized to reproduce four experimentally observed properties including density, enthalpy of vaporization, surface tension, and self-diffusion coefficient at 300 K. The CG MD simulations conducted with these new CG models of decane and nonane, at different timesteps, for various system sizes, and at a range of different temperatures, were able to predict their density, enthalpy of vaporization, surface tension, self-diffusion coefficient, expansibility, and isothermal compressibility with good accuracy. Moreover, a comparison of structural features obtained from the CG MD simulations and the CG beads of mapped all-atom trajectories of decane and nonane showed very good agreement. To test the chemical transferability of these models, we have constructed the models for hydrocarbons ranging from pentane to heptadecane, by using different combinations of the CG beads of decane and nonane. The properties of pentane to heptadecane predicted by these new CG models showed excellent agreement with the experimental data.

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“…50) In addition, the oxidation rate constants of mono-, di-, and trilinoleoyl glycerols diluted with either 1-undecanol or hexadecane were measured. 51) These values were proportional to concentration for all substrates, suggesting that no intramolecular radical chain reaction between the residues occurred. Oxidation of oleoyl residue of its esters with ethylene glycol, glycerol, and erythritol was also kinetically analyzed.…”

Section: Lipid Oxidation In Bulk Samples and O/w Emulsionsmentioning

confidence: 89%

Engineering aspects of rate-related processes in food manufacturing

Adachi

2015

Bioscience, Biotechnology, and Biochemistry

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Many rate-related phenomena occur in food manufacturing processes. This review addresses four of them, all of which are topics that the author has studied in order to design food manufacturing processes that are favorable from the standpoint of food engineering. They include chromatographic separation through continuous separation with a simulated moving adsorber, lipid oxidation kinetics in emulsions and microencapsulated systems, kinetic analysis and extraction in subcritical water, and water migration in pasta.

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Autoxidation of Mono-, Di-, and Trilinoleoyl Glycerols at Different Concentrations

Cited by 6 publications

References 8 publications

Enthalpic Effects of Chain Length and Unsaturation on Water Permeability across Droplet Bilayers of Homologous Monoglycerides

Enthalpic Effects of Chain Length and Unsaturation on Water Permeability across Droplet Bilayers of Homologous Monoglycerides

Development of New Transferable Coarse-Grained Models of Hydrocarbons

Engineering aspects of rate-related processes in food manufacturing

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