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Showing 1-30 of 47 results for "311111" within Papers
Aman Ullah et al.
ChemSusChem, 10(10), 2167-2174 (2017-03-02)
Catalytic transformation of renewable feedstocks into fine chemicals is in high demands and olefin metathesis is a sophisticated tool for biomass conversion. Nevertheless, the large-scale viability of such processes depends on the conversion efficiency, energy efficiency, catalytic activity, selective conversion
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
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
Estefania Oliva et al.
Biomolecules, 10(2) (2020-02-26)
Bearing grafts based on fatty esters derivatives, lipidyl-cyclodextrins (L-CDs) are compounds able to form water-soluble nano-objects. In this context, bicatenary biobased lipidic-cyclodextrins of low DS were easily synthesized from a fatty ester epoxide by means of alternative methods (ball-milling conditions
Preeti B Subhedar et al.
Ultrasonics sonochemistry, 27, 530-535 (2015-05-03)
The synthesis of biodiesel from sunflower oil and methanol based on transesterification using the immobilized lipase from Thermomyces lanuginosus (Lipozyme TL-IM) has been investigated under silent conditions and under an ultrasound field. Ultrasound assisted process led to reduced processing time
Xian-Guo Zou et al.
Journal of agricultural and food chemistry, 62(43), 10594-10603 (2014-10-10)
In the present study, a human milk fat substitute (HMFS) enriched in medium-chain fatty acids (MCFAs) was synthesized through acidolysis reaction from Cinnamomum camphora seed oil (CCSO) with oleic acid in a solvent-free system. A commercial immobilized lipase, Lipozyme RM
Jana Olšovská et al.
Journal of the science of food and agriculture, 99(4), 1772-1779 (2018-09-19)
Although fatty acids have a beneficial effect on yeast growth during fermentation, their effect on foam and sensory stability of beer is negative. In general, long-chain fatty acids originate from raw materials, whereas short-chain acids are produced by yeast during
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.
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
Obie Farobie et al.
Bioresource technology, 191, 306-311 (2015-05-26)
In this study, biodiesel production under supercritical conditions among methanol, ethanol, and tert-butyl methyl ether (MTBE) was compared in order to elucidate the differences in their reaction behavior. A continuous reactor was employed, and experiments were conducted at various reaction
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
Annapurna Kumari et al.
Biotechnology for biofuels, 2(1), 1-1 (2009-01-16)
Transesterification of Jatropha oil was carried out in t-butanol solvent using immobilized lipase from Enterobacter aerogenes. The presence of t-butanol significantly reduced the negative effects caused by both methanol and glycerol. The effects of various reaction parameters on transesterification of
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
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
Hailey M Summers et al.
Bioresource technology, 196, 431-440 (2015-08-16)
The economic feasibility and environmental impact is investigated for the conversion of agricultural waste, delactosed whey permeate, through yeast fermentation to a renewable diesel via hydrothermal liquefaction. Process feasibility was demonstrated at laboratory-scale with data leveraged to validate systems models
Simon Hammann et al.
Analytical and bioanalytical chemistry, 407(30), 9019-9028 (2015-10-07)
Triacylglycerols represent the major part (>90%) in most plant oils and have to be eliminated, when the minor compounds such as phytosterols or tocopherols should be analyzed. Here, we used an all liquid-liquid chromatographic technique, countercurrent chromatography (CCC), to fractionate
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
Wijb J C Dekker et al.
FEMS yeast research, 19(6) (2019-08-20)
In Saccharomyces cerevisiae, acyl-coenzyme A desaturation by Ole1 requires molecular oxygen. Tween 80, a poly-ethoxylated sorbitan-oleate ester, is therefore routinely included in anaerobic growth media as a source of unsaturated fatty acids (UFAs). During optimization of protocols for anaerobic bioreactor
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
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)
Steven Lim et al.
Journal of hazardous materials, 390, 121532-121532 (2019-12-18)
In this research, biomass from oil palm empty fruit bunch was used as the carbon precursor and sulfonated by 4-benzenediazonium sulfonate (4-BDS) to produce solid acid catalyst. The as-synthesized catalysts were characterized and the performances were tested in esterification of
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
Bassie B Marvey
International journal of molecular sciences, 10(1), 213-220 (2009-04-01)
Self- and cross-metathesis of fatty acid methyl esters (FAMEs) was investigated using a silica alumina supported Re(2)O(7) catalyst. Although a 3 wt% Re(2)O(7)/SiO(2)-Al(2)O(3)/SnBu(4) is already active for the metathesis of unsaturated FAMEs, the results have shown that particle size of
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
Christian Pfrang et al.
Physical chemistry chemical physics : PCCP, 16(26), 13220-13228 (2014-05-30)
Ozonolysis of methyl oleate monolayers at the air-water interface results in surprisingly rapid loss of material through cleavage of the C=C bond and evaporation/dissolution of reaction products. We determine using neutron reflectometry a rate coefficient of (5.7 ± 0.9) ×
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
Wan-Ying Wong et al.
The Science of the total environment, 727, 138534-138534 (2020-04-26)
Interest in biodiesel research has escalated over the years due to dwindling fossil fuel reserves. The implementation of a carbon-based solid acid catalyst in biodiesel production eradicates the separation problems associated with homogeneous catalysis. However, its application in the glycerol-free
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
Eko Roy Marella et al.
Metabolic engineering, 61, 427-436 (2019-08-14)
Lactone flavors with fruity, milky, coconut, and other aromas are widely used in the food and fragrance industries. Lactones are produced by chemical synthesis or by biotransformation of plant-sourced hydroxy fatty acids. We established a novel method to produce flavor
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