Phase properties of binary mixtures of petroselinic acid/oleic acid and asclepic acid/oleic acid

1991 ◽  
Vol 95 (8) ◽  
pp. 3384-3390 ◽  
Author(s):  
N. Yoshimoto ◽  
T. Nakamura ◽  
M. Suzuki ◽  
K. Sato
Keyword(s):  
Oleic Acid ◽  
Binary Mixtures ◽  
Petroselinic Acid ◽  
Phase Properties

Polymorphic behavior of gondoic acid and phase behavior of its binary mixtures with asclepic acid and oleic acid

1997 ◽  
Vol 74 (9) ◽  
pp. 1153-1159 ◽  
Author(s):  
K. Sato ◽  
J. Yano ◽  
I. Kawada ◽  
M. Kawano ◽  
F. Kaneko ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Phase Behavior ◽  
Binary Mixtures ◽  
Polymorphic Behavior

Formation of Inverse Topology Lyotropic Phases in Dioleoylphosphatidylcholine/Oleic Acid and Dioleoylphosphatidylethanolamine/Oleic Acid Binary Mixtures

Langmuir ◽  
2014 ◽  
Vol 30 (12) ◽  
pp. 3337-3344 ◽  
Author(s):  
Richard J. Gillams ◽  
Tommy Nylander ◽  
Tomás S. Plivelic ◽  
Marcus K. Dymond ◽  
George S. Attard
Keyword(s):  
Oleic Acid ◽  
Binary Mixtures ◽  
Inverse Topology ◽  
Lyotropic Phases

Excess molar enthalpies of binary mixtures containing esters of fatty acids

1988 ◽  
Vol 66 (5) ◽  
pp. 1283-1287 ◽  
Author(s):  
Santos Otin ◽  
Ignacio Senar ◽  
Ma José Soriano ◽  
Celso Gutierrez Losa
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Ethyl Ester ◽  
Binary Mixtures ◽  
Elaidic Acid ◽  
Acid Ethyl Ester ◽  
Excess Molar Enthalpies ◽  
Ester Molecule

Excess molar enthalpies [Formula: see text] at 310.15 K and 101.32 kPa, have been determined for the binary mixtures: lauric acid ethyl ester +, stearic acid ethyl ester +, oleic acid ethyl ester +, linoleic acid ethyl ester + n-hexadecane, + toluene, or + ethyl alcohol, and elaidic acid ethyl ester + n-hexadecane or + toluene.The results show that HE of ester + n-hexadecane mixtures increases with decreasing chain length and with increasing unsaturation of the ester molecule. Ester + toluene mixtures are slightly exothermic and ester + alcohol are strongly endothermic, with [Formula: see text] values ranging from 1535 to 1740 J mol−1 at the maximum.

scholarly journals Function of human mitochondrial 2,4-dienoyl-CoA reductase and rat monofunctional Δ3-Δ2-enoyl-CoA isomerase in β-oxidation of unsaturated fatty acids

1999 ◽  
Vol 344 (3) ◽  
pp. 903-914 ◽  
Author(s):  
Aner GURVITZ ◽  
Leila WABNEGGER ◽  
Ahmed I. YAGI ◽  
Maximilian BINDER ◽  
Andreas HARTIG ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Fatty Acids ◽  
Oleic Acid ◽  
Unsaturated Fatty Acids ◽  
Petroselinic Acid ◽  
Yeast Cells ◽  
C Terminus ◽  
Peroxisomal Targeting ◽  
Targeting Signals ◽  
Coa Reductase

Human 2,4-dienoyl-CoA reductase (2,4-reductase; DECR) and rat monofunctional ∆3-∆2-enoyl-CoA isomerase (rat 3,2-isomerase; ECI) are thought to be mitochondrial auxiliary enzymes involved in the β-oxidation of unsaturated fatty acids. However, their function during this process has not been demonstrated. Although they lack obvious peroxisomal targeting signals (PTSs), both proteins have been suggested previously to also occur in the mammalian peroxisomal compartment. The putative function and peroxisomal location of the two mammalian proteins can be examined in yeast, since β-oxidation of unsaturated fatty acids is a compartmentalized process in Saccharomyces cerevisiae requiring peroxisomal 2,4-dienoyl-CoA reductase (Sps19p) and peroxisomal 3,2-isomerase (Eci1p). A yeast sps19∆ mutant expressing human 2,4-reductase ending with the native C-terminus could not grow on petroselinic acid [cis-C18:1(6)] medium but could grow when the protein was extended with a PTS tripeptide, SKL (Ser-Lys-Leu). We therefore reason that the human protein is a physiological 2,4-reductase but that it is probably not peroxisomal. Rat 3,2-isomerase expressed in a yeast eci1∆ strain was able to re-establish growth on oleic acid [cis-C18:1(9)] medium irrespective of an SKL extension. Since we had shown that ∆2,4 double bonds could not be metabolized extra-peroxisomally to restore growth of the sps19∆ strain, we postulate that rat 3,2-isomerase acted on the ∆3 unsaturated metabolite of oleic acid by replacing the mutant's missing activity from within the peroxisomes. Immunoblotting of fractionated yeast cells expressing rat 3,2-isomerase in combination with electron microscopy supported our proposal that the protein functioned in peroxisomes. The results presented here shed new light on the function and location of human mitochondrial 2,4-reductase and rat monofunctional 3,2-isomerase.

A magnetic super lattice

1987 ◽  
Vol 45 ◽  
pp. 360-361 ◽  
Author(s):  
M.D. Bentzon ◽  
J. v. Wonterghem ◽  
A. Thölén
Keyword(s):  
Thermal Decomposition ◽  
Oleic Acid ◽  
Magnetic Fluid ◽  
Magnetic Particles ◽  
Carbon Film ◽  
Thick Layer ◽  
Amorphous Iron ◽  
Super Lattice ◽  
Carrier Liquid ◽  
Median Diameter

We report on the oxidation of a magnetic fluid. The oxidation results in magnetic super lattice crystals. The “atoms” are hematite (α-Fe2O3) particles with a diameter ø = 6.9 nm and they are covered with a 1-2 nm thick layer of surfactant molecules.Magnetic fluids are homogeneous suspensions of small magnetic particles in a carrier liquid. To prevent agglomeration, the particles are coated with surfactant molecules. The magnetic fluid studied in this work was produced by thermal decomposition of Fe(CO)5 in Declin (carrier liquid) in the presence of oleic acid (surfactant). The magnetic particles consist of an amorphous iron-carbon alloy. For TEM investigation a droplet of the fluid was added to benzine and a carbon film on a copper net was immersed. When exposed to air the sample starts burning. The oxidation and electron irradiation transform the magnetic particles into hematite (α-Fe2O3) particles with a median diameter ø = 6.9 nm.

Intestinal Absorption of Iodine131-Labeled Triolein and Oleic Acid in Normal Subjects and in Steatorrhea

1958 ◽  
Vol 34 (5) ◽  
pp. 901-909 ◽  
Author(s):  
Ervin Kaplan ◽  
Bernard D. Edidin ◽  
Robert C. Fruin ◽  
Lyle A. Baker
Keyword(s):  
Oleic Acid ◽  
Intestinal Absorption ◽  
Normal Subjects
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