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11 articles for “esterification”
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Research ArticleOpen accessEvery word in the titleInhibition of Cholesterol Esterification Influences Cytokine Exspression in Lypopolisaccharide-activated P388D1 MacrophagesRosa Rita Bonatesta, Francesca Sanna, Sabrina Uda et al.Several in vivo and in vitro studies have demonstrated the involvement of infectious agents in the development of atherosclerosis. However, the mechanisms by which micro-organisms induce and/or aggravate atherosclerosis, are so far unclear. Accumulation of cholesterol esters and lipid laden cell formation are hallmark of the atherogenesis, however, the possible relationship between cholesterol esterification and the signal-transducing component of LPS … …American Journal of Infectious Diseases, Vol. 3, Issue 3 · 30 Sep 2007 · 7,481 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOptimized Biodiesel Production from jatropha curcas oilHaruna Musa, Daniel Eric, Alkhairu Hassan et al.In this study, a mathematical model for the trans-esterification reaction of jatropha curcas seed Oil (JCO) was developed using Response Surface Methodology(RSM) in terms of operational variables such as temperature (50 to 80°C), catalyst concentration (0.7 to 1% in relation to oil mass) and methanol/oil ratio (3:1-9:1), at fixed reaction time (90 min) and mixing intensity. Biodiesel was produced by … …Energy Research Journal, Vol. 12, Issue 1 · 12 Oct 2021 · 7,286 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExperimental Study of Diesel Engine Generator Performance and Emission Characteristics Using a Mixture of Jatropha Oil and Rubber Seed Oil Biodiesels Along a Two-Step TransesterificationFana Gebremedhin Gebremichael, Joao Fernando ChidamoioThis study investigates the performance and emission properties of engine-generator powered using various dual biodiesel mixes prepared from two inedible feedstock jatropha and rubber. Jatropha and rubber oils had high acid values, which were 13.96 and 27.91 mg KOH/g, respectively. Therefore, a two-step transesterification process was conducted to lower the acid value to 0.28 and 0.42 mg KOH/g for jatropha … …American Journal of Engineering and Applied Sciences, Vol. 17, Issue 3 · 1 Jul 2024 · 5,124 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMethanol-Based Transesterification Optimization of Waste Used Cooking Oil over Potassium Hydroxide CatalystCholada Komintarachat, Sathaporn ChuepengProblem statement: Waste used Cooking Oil (WCO) harmfully affected to environment and human’s health can be a feedstock for producing biodiesel. Approach: The conversion of Fatty Acid and Free Fatty Acid (FFA) of WCO with 15.0% w/w FFA content to biodiesel was studied through transesterification reactions. This work investigated the effects of alcohol and catalyst quantity, reaction time and temperature … …American Journal of Applied Sciences, Vol. 7, Issue 8 · 31 Aug 2010 · 9,739 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Review on Biochemical Mechanism of Fatty Acids Synthesis and Oil Deposition in Brassica and ArabidopsisMukhlesur RahmanOilseeds crops provide edible oil for humans’ diet or oil for industrial purpose. Triacylglycerols (TAG) are the main components in seed oil which is formed by the esterification of fatty acids to glycerol back bone. In plants, fatty acid biosynthesis process initiated in plastid and ended in the endoplasmic reticulum. A series of biochemical steps are involved in TAG formation … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 4 · 17 Jan 2015 · 7,528 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Extraction of Pectic and Polyphenols from Mexican Lime Pomace and BagasseDaniela Sanchez-Aldana, Cristobal Noe Aguilar, Guadalupe Virginia Nevarez-Moorillon, Juan Carlos Contreras EsquivelMexican lime bagasse and pomace are rich in pectin and they also represent an important source of value-added compounds such as polyphenols. Two different options for the combined recovery of pectin and phenolic compounds from Mexican lime bagasse and pomace, two byproducts of industrial lime processing, were developed. Conventional and microwave-assisted extraction methods were used. All pectic extracts presented a … …American Journal of Agricultural and Biological Sciences, Vol. 8, Issue 4 · 29 Oct 2013 · 7,804 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplications of Method Chosen for Analysis of Fatty Acids in Meat: A ReviewLivia Facuri Araujo Macedo, Ellen Cristina Quirino Lacerda, Roberio Rodrigues Silva et al.The influence of the beef Fatty Acid (FA) profile on human health, has become a recurring concern. For an analysis of the lipid composition of food, it is necessary that the complex lipids be quantified in a suitable form for subsequent analysis of their composition by gas chromatography. The choice of appropriate methods of lipid extraction and esterification of fatty … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 3 · 9 Jul 2012 · 8,633 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of Prickly Poppy Methyl Ester Blends on Ci Engine Performance and Emission CharacteristicsP. Lawrence, P. Koshy Mathews, B. DeepanrajProblem statement: The aim of this research was to investigate the effect of using Prickly poppy methyl ester as a fuel blend on Diesel engine (CI engine) performance and exhaust emission. Approach: Short-term engine performance tests were conducted to evaluate and compare the use of various diesel fuel supplements at blend rations of 60/40, 70/30, 80/20, 90/10, in a standard, … …American Journal of Environmental Sciences, Vol. 7, Issue 2 · 26 May 2011 · 7,136 accessesView PDFCite
Research ArticleOpen accessIn the abstractNew Mesogenic Schiff Base Esters with Polar Chloro Substituent: Synthesis, Thermotropic Properties and X-Ray Diffraction StudiesSie-Tiong Ha, Lay-Khoon Ong, Yasodha Sivasothy et al.Problem statement: Many studies have been conducted on the Schiff base’s alkyl and alkyloxy possessing terminal halogen substituent. However, the thermotropic properties of Schiff base’s ester (or alkanoyloxy) with chloro terminal group remained unstudied. Approach: Synthesis a series of new Schiff base ester possessing polar chloro group and investigate its mesomorphic properties. The title compounds were prepared via condensation and … …American Journal of Applied Sciences, Vol. 7, Issue 2 · 28 Feb 2010 · 12,956 accessesView PDFCite
Research ArticleOpen accessIn the abstractImmobilization of Lipase from Candida Rugosa on Palm-Based Polyurethane Foam as a Support MaterialRoila Awang, Mohd Rafaei Ghazuli, Mahiran BasriLipase from Candida rugosa was immobilized onto palm-based polyurethane foam (PU), which the polymer was pre-soaked in co-immobilized agent. The activities of PU-immobilized lipase were tested by the esterification reaction of oleic acid and oleyl alcohol in hexane. The PU-immobilized lipase was then characterized in term of its thermal, operational and storage stability. The optimum temperature for native and PU-immobilized … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 3 · 30 Sep 2007 · 7,478 accessesView PDFCite