نتایج جستجو برای: methyl palmitate
تعداد نتایج: 114555 فیلتر نتایج به سال:
OBJECTIVE To determine the effects of methyl palmitate on murine model of chronic asthma. METHODS The experimental study was conducted in the animal laboratory of DokuzEylul University, Turkey, from October to December, 2012, and comprised BALB/c mice whowere divided into four equal groups: three experimental and one control group. All groups except the control group were sensitised and chall...
Intramolecular carbon isotope distributions reflect details of the origin of organic compounds and may record the status of complex systems, such as environmental or physiological states. A strategy is reported here for high-precision determination of 13C/12C ratios at specific positions in organic compounds separated from complex mixtures. Free radical fragmentation of methyl palmitate, a test...
This study examines the effect of UV irradiation on yield and physical characteristics biodiesel from candlenut oil using a TiO 2 -K O/natural zeolite composite. Natural was activated with KOH impregnated . The formed composite analyzed an X-ray diffractometer. Biodiesel synthesized to methanol molar ratio catalyst loading (w/w oil) 1:4, 1:6, 1:8, 2, 4, 6%, respectively. XRD analysis shows peak...
background: retinoids have been suggested to play a role in oogenesis and oocyte survival. objective: in the present study the effects of retinol palmitate were investigated on differential follicular counts in response to superovulation as well as follicle quality after vitrification of ovaries. materials and methods: ten, 4 week old female balb/c mice were randomly assigned to either paraffin...
Skin protection against ultraviolet induced free radicals with ascorbyl palmitate in microemulsions.
UV irradiation induces free radical formation in the skin. UV filters and antioxidants can be used for protection. In the present work, the amphiphilic antioxidant ascorbyl palmitate has been investigated and its effectiveness against free radical formation in porcine skin determined with electron paramagnetic resonance (EPR) spectroscopy with a spin trapping technique. 5-(diethoxyphosphoryl)-5...
Obesity and insulin resistance are associated with enhanced fatty acid utilization, which may play a central role in diabetic cardiomyopathy. We now assess the effect of the saturated fatty acid palmitate (1.2 mmol/l) on Ca(2+) handling, cell shortening, and mitochondrial production of reactive oxygen species (ROS) in freshly isolated ventricular cardiomyocytes from normal (wild-type) and obese...
The purpose of this research is the synthesis alkyl esters from CPO through transesterification reaction using catalyst CaO-MgO. This experimental laboratory stages: (1) refinement, (2) determination free fatty acid numbers, (3) activation CaO-MgO catalysts, (5) with alcohol (methanol and ethanol), (6) identification components synthesized ester GC-MS,characterization including density, viscosi...
The development of low viscosity insulating liquids derived from natural esters is conducted in our laboratory. Nine monoesters, i.e., methyl myristate, ethyl isopropyl palmitate, stearate, and stearate were synthesized alcohols saturated fatty acids. Treatments performed to reduce water acid contents improve the oxidation stability monoesters. Some fundamental properties, such as breakdown vol...
Solvent mixtures containing trimethyl borate virtually eliminated the pronounced interconversion of 1,2- and 1,3-dipalmitins during their resolution by thin-layer chromatography on Silica Gel G. With trimethyl borate, an average of 1-2% of 1,2-dipalmitin was converted to 1,3-dipalmitin. A four-directional-development TLC procedure incorporating trimethyl borate resolves cholesteryl glucoside, c...
Thermotropic properties of liposome membranes prepared of bulk bovine erythrocyte membrane lipids, native, or aldolase-modified, were investigated by the ESR method. Breaks were observed in the log 2T parallel vs 1/T plots for two spin labels: tempopalmitate and 5-doxyl-palmitate methyl ester. These phenomena have been interpreted as reflecting structural changes near the lipid bilayer polar he...
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