Different reaction temperatures (35, 40, 45, 50, and 55°C) were used for the synthesis of octyl acetate using the optimized molar concentration of reactants and reaction time. 3a). ", "Open access journals are probably one of the most important contributions to promote and diffuse science worldwide. Researchers, faculty members, and students will be greatly benefited by the new journals of Bentham Science Publishers Ltd. in this category. Appl Microbiol Biotechnol 2005; 67(2): 160-9. In another study, a cold adapted esterase exhibited a maximum activity towards p-NPB at 18°C and pH 6.5 . Esterase plays a major role in the degradation of natural materials, industrial pollutants and also provides an immense contribution to the eco-friendly approaches in various industrial applications. EC Number 203-939-6. The articles published in the open access journals are high quality and cover a wide range of fields. We will respond to your inquiry shortly. The papers published are of high quality after rigorous peer review and they are Indexed in: major international databases. The optimal synthesis of linalyl ferulate ester was observed by using 15 mg/ml immobilized commercial lipase “Lipolase T100” . Acta Microbiol Immunol Hung 2006; 53(2): 219-31. The theoretical yield was 23.8 g of octyl acetate. octyl acetate - cas 112-14-1, synthesis, structure, density, melting point, boiling point Complementary shape, charge, and hydrophilic/hydrophobic characteristics of enzymes and substrates are responsible for this specificity. is a colorless liquid that is miscible with alcohol, most fixed oils and, organic solvents. Wolejko E, Wydro U, Loboda T. The ways to increase efficiency of soil bioremediation. ", "Open access journals make up a new and rather revolutionary way to scientific publication. Department of Protozoology, Institute of Tropical Medicine (NEKKEN), Nagasaki University Gas chromatography was used to analyze the octyl acetate synthesis. Enzymes are usually very specific as to which reactions they catalyze and the substrates that are involved in these reactions. Expert Answer . Fischer ester synthesis method. Kumar S, Pahujani S, Ola RP, Kanwar SS, Gupta R. Enhanced thermostability of silica-immobilized lipase from Bacillus coagulans BTS-3 and synthesis of ethyl propionate. She published over 280 publications including 40 RF patents. Because of its fruity odor, octyl acetate is used as the basis for artificial flavors and in perfumery. This article by Dr. Kwame K. Asare et al. ", "Open access journals have become a fundamental tool for students, researchers, patients and the general public.  and the protein content was estimated by the method given by Bradford . Research Objectives: The objective of this proposal is to synthesize and characterize n-octyl ethanoate (octyl acetate) using the Fischer ester synthesis method. Also, this compound is insoluble in water (Burdock, 2010 ). Submit or solicit at least one article for the journal annually. NACRES NA.22 The interaction of substrate with the enzyme is stimulated by its higher concentration while increasing the production cost. These microbes cause a range of infections including acute diarrhoea, respiratory infection, urinary tract infections (UTI), bacteremia, sepsis, pneumonia, cystitis, pyelonephritis, and lung abscess. The enzyme activity in the fractions was estimated by the method of Immanuel et al. Malaysia harbors a large variety of ecological niches that favor the transmission of Toxoplasma spp. Complete list of publications and h-index. To study the effect of pH, Tris-HCl buffer (0.1 M) of pH 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, and 9.5 was used to determine the enzyme activity. The effect of concentration of reactants was studied by using vinyl acetate at a concentration of 2 M and octanol concentration was varied as 1, 2, 3, 4, and 5 M. The solvent (DMSO) was used to complete the reaction mixture volume (3 ml) and incubated at 45ºC in a rotary shaker. (“Fischer esterification”. ", "The widest possible diffusion of information is critical for the advancement of science. The precipitates were reconstituted in a minimum volume of 0.1 M Tris-HCl buffer (pH 8.0). The report has been published in The Open Microbiology Journal. the yield was dramatically decreased (up to 80%) . Indeed, the research articles span a wide range of area and of high quality. See the answer. Malaysia harbors a large variety of ecological niches that favor the transmission of Toxoplasma spp. This is exactly what Open Access Journals provide and this is the reason why I support this endeavor. The enzyme was salted out using ammonium sulphate precipitation and 60-70% saturation gave maximum specific activity of the enzyme during precipitation. Course Hero is not sponsored or endorsed by any college or university. In a previous study, a pronounced decrease in the activity of esterase, produced by Geodermatophilus obscurus G20, was observed for p-nitrophenyl butyrate . ", "There are many scientists who can not afford the rather expensive subscriptions to scientific journals. Methods: Purification of esterase from Bacillus licheniformis was achieved using Sephadex G-75 column chromatography. Researchers from MAHSA University in Malaysia have published a review on the epidemiology of various parasitic diseases in the country over the last 20 years.
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