Composition of molecular distillates of corn oil: isolation and identification of sterol esters

Kuksis, A.; Beveridge, J. M. R.

doi:10.1016/s0022-2275(20)39053-2

Cited by 20 publications

(7 citation statements)

References 33 publications

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“…The specifications for n -alkanes are shown in Table . Commercial corn oil is from Mazola, and Table shows the composition of corn oil . Our gas chromatograph capabilities validated the oil composition.…”

Section: Experimental Sectionmentioning

confidence: 82%

“…The mole fractions are calculated using an average molecular weight using the composition of the oil reported by Kuksis and Beveridge. 10 We have also used eq 17, substituting the mole fraction by the volume fraction, since the latter is a common variable used in the fuel industry. Figure 6 shows the performance of eq 17 using volume and mole fractions as composition variables.…”

Section: Resultsmentioning

confidence: 99%

“…The densities of the n -alkanes, the vegetable oil, and diesel are measured from (288.15 to 343.15) K. Densities and viscosities are compared with the literature values, ,− and they are shown in Table . Comparison with literature values is done using the average absolute percentage deviation defined as where N is the number of experimental data points and φ i is the mass density.…”

Section: Resultsmentioning

confidence: 99%

“…They measure the density at four temperatures: (298.15, 303.15, 308.15, and 313.15) K. Our densities agree within an average absolute percentage deviation of 0.22%. There is only one density measurement for the same oil used in this work. The density of the corn oil agrees with this literature value within an absolute percentage deviation of 0.34%.…”

Section: Resultsmentioning

confidence: 99%

“…Equation has not been previously used for the viscosity correlation of corn oil blends. The mole fractions are calculated using an average molecular weight using the composition of the oil reported by Kuksis and Beveridge . We have also used eq , substituting the mole fraction by the volume fraction, since the latter is a common variable used in the fuel industry.…”

Section: Resultsmentioning

confidence: 99%

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Densities and Viscosities of Corn Oil + n-Alkanes Blends from (288.15 to 343.15) K at 0.1 MPa

Reyes-García

Iglesias‐Silva

2017

J. Chem. Eng. Data

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In this paper we present densities and viscosities of corn oil with n-alkanes with carbon atoms from C7 to C10 from (288.15 to 343.15) K at atmospheric pressure. A vibrating tube densimeter is used to measure the densities. Viscosities are measured using a pellet microviscometer. Dynamic and kinematic viscosities are correlated using common equations previously presented in the literature. We have used an equation based upon the Gibbs activation energy to correlate the kinematic viscosities of the blends, obtaining the best performance. The average absolute percentage error from this equation is calculated as 0.86%.

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Section: Experimental Sectionmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Densities and Viscosities of Corn Oil + n-Alkanes Blends from (288.15 to 343.15) K at 0.1 MPa

Reyes-García

Iglesias‐Silva

2017

J. Chem. Eng. Data

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Brassica campestris var. Span: I. Fractionation of Rapeseed oil by molecular distillation and adsorption chromatography

Kramer¹,

Hulan²,

Mahadevan³

et al. 1975

Lipids

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Procedures for the large scale isolation of pure triglycerides and fractions rich in nontriglyceride components from Span rapeseed oil are described. Fractionation of Brassica campestris var. Span rapeseed oil by molecular distillation yielded 4 triglyceride fractions, all of which contained traces of sterol esters. An additional triglyceride fraction rich in free and esterified sterols and other volatile components was obtained from the oil. Separation by adsorption chromatography of Span rapeseed oil yielded three fractions; A) a pure triglyceride ffaction; B) a triglyceride fraction rich in sterol esters; and C) another fraction containing free sterols and other polar components.

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Lipid profiles of plasma lipoproteins of fasted and fed normal and choline‐deficient rats

Mookerjea

Park

Kuksis

1975

Lipids

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Three major density classes of lipoproteins and a residual protein (d greater than 1.21) were isolated by ultracentrifugation from plasma of fasted, fed normal, and choline-deficient rats. Lipid extracts were obtained from total plasma and the various density classes of lipoproteins, and each extract was examined in detail by thin layer and gas chromatographies. The results indicated essentially identical compositions of molecular species of phosphatidyl choline, which suggested their rapid equilibration among the different plasma lipoprotein classes. In contrast, the molecular species of the triacylglycerols and cholesteryl esters showed significant differences among the chylomicrons, very low and low, and high density lipoproteins, which excluded the possibility of their ready equilibration in vivo. Omission of choline from diet resulted in a sharp and statistically significant decrease in all lipid components of the very low and low density lipoproteins with 2 days. After 10 days of choline deficiency, the lipid levels of chylomicrons and very low and low density lipoproteins were ca. one-half the levels found in the choline supplemented animals, and there were discernible distortions in their lipid composition. Reintroduction of choline led to a prompt return to normal levels and lipid composition of both chylomicron and very low and low density lipoprotein fractions. The lack of equilibration of the triacylglycerols among the lipoprotein classes under normal conditions and in choline deficiency demonstrates an as yet unrecgnized source of compartmentation of plasma lipids.

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Composition of molecular distillates of corn oil: isolation and identification of sterol esters

Cited by 20 publications

References 33 publications

Densities and Viscosities of Corn Oil + n-Alkanes Blends from (288.15 to 343.15) K at 0.1 MPa

Densities and Viscosities of Corn Oil + n-Alkanes Blends from (288.15 to 343.15) K at 0.1 MPa

Brassica campestris var. Span: I. Fractionation of Rapeseed oil by molecular distillation and adsorption chromatography

Lipid profiles of plasma lipoproteins of fasted and fed normal and choline‐deficient rats

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