Kinetics of Enzymatic Synthesis of Liquid Wax Ester from Oleic Acid and Oleyl Alcohol
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概要
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The kinetics of wax ester synthesis from oleic acid and oleyl alcohol using immobilized lipase from Candida antartica as catalyst was studied with different types of impeller (Rushton turbine and AL-hydrofoil) to create different mixing conditions in 2l stirred tank reactor. The effects of catalyst concentration, reaction temperature, and impeller tip speed on the synthesis were also evaluated. Rushton turbine impeller exhibited highest conversion rate at lower impeller tip speed as compared to AL-hydrofoil impeller. A second-order reversible kinetic model from single progress curve for the prediction of fractional conversion at given reaction time was proposed and the corresponding kinetic parameter values were calculated by non-linear regression method. The results from the simulation using the proposed model showed satisfactory agreement with the experimental data. Activation energy shows a value of 21.77 Kcal/mol. The thermodynamic parameters of the process, enthalpy and entropy, were 21.15 Kcal/mol and 52.07 cal/mol.K, respectively.
著者
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Rahman Mohammad
Department Of Animal Science Faculty Of Agriculture Utsunomiya University
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Basri Mahiran
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia
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RAHMAN RAJA
Departiment of Biotechnology, Graduate School of Engineering, Osaka University
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Rahman Raja
Departiment Of Biotechnology Graduate School Of Engineering Osaka University
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Basri Mahiran
Department Of Chemistry Faculty Of Science And Environmental Studies Universiti Putra Malaysia
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Rahman Mohd.
Fac. Of Sci. Universiti Putra Malaysia
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ARIFF Arbakariya
Department of Biotechnology, Faculty of Food Science and Biotechnology, University Putra Malaysia
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MOHAMAD ROSFARIZAN
Department of Biotechnology, Graduate School of Engineering, Osaka University
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Rahman Mohammad
Department Of Anesthesiology Pharmacology & Therapeutics University Of British Columbia
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Radzi Salina
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia
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Salleh Abu
Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Mal
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Basri Mahiran
Faculty Of Science Universiti Putra Malaysia
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Basri M
Dep. Of Chemistry Fac. Of Sci. Universiti Putra Malaysia
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Ariff Arbakariya
Department Of Biotechnology Faculty Of Food Science And Biotechnology University Putra Malaysia
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Mohamad Rosfarizan
Department Of Biotechnology Graduate School Of Engineering Osaka University:2department Of Biotechno
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Rahman Mohammad
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia
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Mohamad Rosfarizan
Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia
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Salleh Abu
Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia
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Rahman Raja
Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia
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Ariff Arbakariya
Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia
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