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Byung-Jun Kollbe Ahn et al.
Journal of agricultural and food chemistry, 60(9), 2179-2189 (2012-02-07)
Toxic solvent and strong acid catalysts causing environmental issues have been mainly used for ring-opening of epoxidized oleochemicals. Here, we demonstrated that magnesium stearate (Mg-stearate) was a high efficient catalyst for solvent-free ring-opening of epoxidized methyl oleate, a model compound
Atanu Biswas et al.
Journal of agricultural and food chemistry, 59(7), 3066-3070 (2011-03-08)
This paper describes the preparation of a new type of branched vegetable oil and its methyl ester that involves the formation of acetonides. A facile and environmentally friendly synthesis has been found to produce acetonides that entails the use of
Oier Aizpurua-Olaizola et al.
Journal of food science, 80(1), E101-E107 (2014-12-05)
In this study, supercritical fluid extraction has been successfully applied to a sequential fractionation of fatty acids and polyphenols from wine wastes (2 different vitis vinifera grapes). To this aim, in a 1st step just fatty acids were extracted and
Philipp Roesle et al.
Journal of the American Chemical Society, 134(42), 17696-17703 (2012-10-18)
The weakly coordinated triflate complex [(P^P)Pd(OTf)](+)(OTf)(-) (1) (P^P = 1,3-bis(di-tert-butylphosphino)propane) is a suitable reactive precursor for mechanistic studies of the isomerizing alkoxcarbonylation of methyl oleate. Addition of CH(3)OH or CD(3)OD to 1 forms the hydride species [(P^P)PdH(CH(3)OH)](+)(OTf)(-) (2-CH(3)OH) or the
B Kollbe Ahn et al.
Advanced materials (Deerfield Beach, Fla.), 24(16), 2123-2129 (2012-03-21)
Amphiphilic reduced graphene oxide is obtained by oleo-functionalization with epoxidized methyl oleate (renewable feedstock) using a green process. The excellent diverse solvent-dispersivity of the oleo-reduced amphiphilic graphene and its reduction chemistry are confirmed in this study. Oleo-reduction of amphiphilic graphene
Yoshiyuki Mochida et al.
Journal of oleo science, 58(9), 461-466 (2009-08-06)
The analysis or preparative isolation of a specimen by a packed column gas chromatograph is affected by the kind and amount (concentration) of the liquid phase coated on the stationary phase. In particular, compounds having the same or similar molecular
Emmanuel Richaud et al.
Chemistry and physics of lipids, 165(7), 753-759 (2012-10-03)
This study deals with oxidation kinetics of three unsaturated fatty esters: methyl oleate, methyl linoleate and methyl linolenate at temperatures ranging from 90 to 150 °C. The reaction was monitored by chemiluminescence. A kinetic model was derived from a simple
Dinesh Koju et al.
Journal of microbiology and biotechnology, 22(8), 1127-1132 (2012-06-21)
Nargenicin A1 is a 28-membered polyketide macrolide, with antibacterial activity against methicillin-resistant Staphylococcus aureus, produced by Nocardia sp. CS682. In this study, the production of nargenicin A1 was improved by enhancing the supply of different biosynthetic precursors. In Nocardia sp.
Farshad Darvishi et al.
New biotechnology, 28(6), 756-760 (2011-02-18)
The yeast Yarrowia lipolytica degrades efficiently low-cost hydrophobic substrates for the production of various added-value products such as lipases. To obtain yeast strains producing high levels of extracellular lipase, Y. lipolytica DSM3286 was subjected to mutation using ethyl methanesulfonate (EMS)
Renee M Thomas et al.
Journal of the American Chemical Society, 133(19), 7490-7496 (2011-04-23)
N-Aryl,N-alkyl N-heterocyclic carbene (NHC) ruthenium metathesis catalysts are highly selective toward the ethenolysis of methyl oleate, giving selectivity as high as 95% for the kinetic ethenolysis products over the thermodynamic self-metathesis products. The examples described herein represent some of the
Naoya Morinaga et al.
Enzyme and microbial technology, 48(6-7), 498-504 (2011-11-25)
We recently reported the characterization of novel cholesterol esterase (EC. from Trichoderma sp. and preliminary work on sterol ester synthesis. In the present study, we further examined the enzyme ability to synthesize cholesterol esters from cholesterol and free fatty
Atanu Biswas et al.
Journal of agricultural and food chemistry, 56(14), 5611-5616 (2008-06-19)
An environmentally friendly water-based pathway to form the azide derivatives of soybean oil and fatty esters is reported. This entails first the formation of epoxides and then the azidization of the epoxides. The azidization reaction is carried out at high
Ursula Biermann et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(26), 8201-8207 (2012-05-18)
A kinetic study of the dodecanethiol-catalyzed cis/trans isomerization of methyl oleate (cis-2) without added initiator was performed by focusing on the initiation of the radical chain reaction. The reaction orders of the rate of isomerization were 2 and 0.5 for
L I Mazaletskaia et al.
Prikladnaia biokhimiia i mikrobiologiia, 46(2), 148-152 (2010-04-16)
Influence of the widely used food supplement lecithin on the effectiveness of the inhibiting effect of the natural antioxidants (quercitin, dihydroquercitin, and alpha-tocopherol) has been studied in dependence of the rate of free radicals generation in the model oxidation reactions.
Cyril Thurier et al.
ChemSusChem, 1(1-2), 118-122 (2008-07-09)
Unsaturated vegetable oils are an attractive renewable feedstock, and the selective cleavage of unsaturated fatty esters is an important transformation in this respect. The efficient and selective cross-metathesis of methyl oleate with ethylene was achieved under mild conditions with ruthenium-alkylidene
Chinmay A Deshmane et al.
Chemical communications (Cambridge, England), 46(34), 6347-6349 (2010-08-18)
Thermally stable mesoporous Ga-Nb mixed oxides, active in both acid-catalysed and redox reactions have been synthesized via self-assembly hydrothermal assisted approach. Methyl oleate, a major component of biodiesels, undergoes double bond and skeletal isomerisation as well as dehydrogenation over these
L M Ovsepian et al.
Eksperimental'naia i klinicheskaia farmakologiia, 73(7), 16-18 (2010-09-09)
The antioxidant activity of a newly synthesized compound, cysteine lithium salt, was discovered using methyl oleate oxidation model of dopaminergic system disorder. Experimental data show that injection of the synthesized compound in animals with experimentally induced L-DOPA brings to normalization
Shuang-Fei Cai et al.
Molecules (Basel, Switzerland), 14(8), 2935-2946 (2009-08-25)
The oxo-diperoxo molybdenum(VI) complex MoO(O(2))(2).2QOH (QOH = 8-quinilinol) was prepared and characterized by elemental analysis, IR and UV-Vis spectra. The ionic liquids (ILs) [bmim][BF(4)], [hydemim][BF(4)], and [bmim][PF(6)] were characterized by (1)H-NMR and UV-Vis spectra. The epoxidation of a technical mixture
S Katti et al.
Insect molecular biology, 22(1), 31-40 (2012-11-06)
Many pheromones have very low water solubility, posing experimental difficulties for quantitative binding measurements. A new method is presented for determining thermodynamically valid dissociation constants for ligands binding to pheromone-binding proteins, using β-cyclodextrin as a solubilizer and transfer agent. The
T A Misharina et al.
Prikladnaia biokhimiia i mikrobiologiia, 46(5), 599-604 (2010-11-11)
Stability of components of a mixture of methyl linolenoate and methyl oleinate with two lemon (Citrus limon L.) essential oils in hexane during their autooxidation in light was studied by gas chromatography. The essential oils differed by their quantitative ratio
Michael A Rogers et al.
Langmuir : the ACS journal of surfaces and colloids, 25(15), 8556-8566 (2009-03-31)
The solvent type strongly affects the nucleation behavior of 12HSA and therefore strongly influences the peak nucleation rate, fiber length, spatial distribution of mass, and degree of branching. Using nonisothermal kinetic models, a correlation was established among the activation energy
Catherine M Klapperich et al.
Journal of biomedical materials research. Part A, 91(2), 378-384 (2008-11-05)
We describe a new class of biomaterials with potential for a variety of applications in tissue engineering, wound healing, and transdermal drug delivery. These materials are based on oleic methyl ester (OME), which is derived from various plant oils including
Atanu Biswas et al.
Journal of agricultural and food chemistry, 57(18), 8136-8141 (2009-09-02)
A facile (and environmentally friendly) reaction between epoxidized methyl oleate and aniline to produce an oleate-aniline adduct, without the formation of fatty amide, was discovered. This reaction was carried out neat, with a catalytic amount of an ionic liquid. No
L I Mazaletskaia et al.
Biofizika, 55(1), 25-31 (2010-02-27)
It has been established that the effect of lecithin on the oxidation of methyl oleate depends on the rate of the free radical initiation: lecithin does not affect the reaction rate at high rates of radical initiation (the initiated oxidation)
Olivier Berdeaux et al.
Chemistry and physics of lipids, 165(3), 338-347 (2012-03-20)
GC-MS and GC-FTIR were complementarily applied to identify oxidation compounds formed under frying conditions in methyl oleate and linoleate heated at 180°C. The study was focused on the compounds that originated through hydroperoxide scission that remain attached to the glyceridic
Satomi Hirano et al.
Colloids and surfaces. B, Biointerfaces, 94, 1-6 (2012-03-07)
Phospholipase D (PLD)-mediated hydrolysis of phosphatidylcholine (PC) in large unilamellar vesicles (LUVs) consisting of PC and either glycerol monooleate (GMO) or methyl oleate (MeO) were monitored in situ and in real time by using a choline oxidase-immobilized oxygen electrode. This
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