The Experts below are selected from a list of 72 Experts worldwide ranked by ideXlab platform
Raja Noor Zaliha Raja Abdul Rahman - One of the best experts on this subject based on the ideXlab platform.
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Optimized lipase-catalyzed synthesis of adipate ester in a solvent-free System
Journal of Industrial Microbiology & Biotechnology, 2009Co-Authors: Naz Chaibakhsh, Mohd Basyaruddin Abdul Rahman, Suraini Abd-aziz, Mahiran Basri, Abu Bakar Salleh, Raja Noor Zaliha Raja Abdul RahmanAbstract:Immobilized Candida antarctica lipase-catalyzed esterification of adipic acid and oleyl alcohol was investigated in a solvent-free System (SFS). Optimum conditions for adipate ester synthesis in a stirred-tank reactor were determined by the response surface methodology (RSM) approach with respect to important reaction parameters including time, temperature, agitation speed, and amount of enzyme. A high conversion yield was achieved using low enzyme amounts of 2.5% w/w at 60°C, reaction time of 438 min, and agitation speed of 500 rpm. The good correlation between predicted value (96.0%) and actual value (95.5%) implies that the model derived from RSM allows better understanding of the effect of important reaction parameters on the lipase-catalyzed synthesis of adipate ester in an organic solvent-free System. Higher volumetric productivity compared to a Solvent-Based System was also offered by SFS. The results demonstrate that the solvent-free System is efficient for enzymatic synthesis of adipate ester.
Naz Chaibakhsh - One of the best experts on this subject based on the ideXlab platform.
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Optimized lipase-catalyzed synthesis of adipate ester in a solvent-free System
Journal of Industrial Microbiology & Biotechnology, 2009Co-Authors: Naz Chaibakhsh, Mohd Basyaruddin Abdul Rahman, Suraini Abd-aziz, Mahiran Basri, Abu Bakar Salleh, Raja Noor Zaliha Raja Abdul RahmanAbstract:Immobilized Candida antarctica lipase-catalyzed esterification of adipic acid and oleyl alcohol was investigated in a solvent-free System (SFS). Optimum conditions for adipate ester synthesis in a stirred-tank reactor were determined by the response surface methodology (RSM) approach with respect to important reaction parameters including time, temperature, agitation speed, and amount of enzyme. A high conversion yield was achieved using low enzyme amounts of 2.5% w/w at 60°C, reaction time of 438 min, and agitation speed of 500 rpm. The good correlation between predicted value (96.0%) and actual value (95.5%) implies that the model derived from RSM allows better understanding of the effect of important reaction parameters on the lipase-catalyzed synthesis of adipate ester in an organic solvent-free System. Higher volumetric productivity compared to a Solvent-Based System was also offered by SFS. The results demonstrate that the solvent-free System is efficient for enzymatic synthesis of adipate ester.
Mahiran Basri - One of the best experts on this subject based on the ideXlab platform.
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Optimized lipase-catalyzed synthesis of adipate ester in a solvent-free System
Journal of Industrial Microbiology & Biotechnology, 2009Co-Authors: Naz Chaibakhsh, Mohd Basyaruddin Abdul Rahman, Suraini Abd-aziz, Mahiran Basri, Abu Bakar Salleh, Raja Noor Zaliha Raja Abdul RahmanAbstract:Immobilized Candida antarctica lipase-catalyzed esterification of adipic acid and oleyl alcohol was investigated in a solvent-free System (SFS). Optimum conditions for adipate ester synthesis in a stirred-tank reactor were determined by the response surface methodology (RSM) approach with respect to important reaction parameters including time, temperature, agitation speed, and amount of enzyme. A high conversion yield was achieved using low enzyme amounts of 2.5% w/w at 60°C, reaction time of 438 min, and agitation speed of 500 rpm. The good correlation between predicted value (96.0%) and actual value (95.5%) implies that the model derived from RSM allows better understanding of the effect of important reaction parameters on the lipase-catalyzed synthesis of adipate ester in an organic solvent-free System. Higher volumetric productivity compared to a Solvent-Based System was also offered by SFS. The results demonstrate that the solvent-free System is efficient for enzymatic synthesis of adipate ester.
Abu Bakar Salleh - One of the best experts on this subject based on the ideXlab platform.
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Optimized lipase-catalyzed synthesis of adipate ester in a solvent-free System
Journal of Industrial Microbiology & Biotechnology, 2009Co-Authors: Naz Chaibakhsh, Mohd Basyaruddin Abdul Rahman, Suraini Abd-aziz, Mahiran Basri, Abu Bakar Salleh, Raja Noor Zaliha Raja Abdul RahmanAbstract:Immobilized Candida antarctica lipase-catalyzed esterification of adipic acid and oleyl alcohol was investigated in a solvent-free System (SFS). Optimum conditions for adipate ester synthesis in a stirred-tank reactor were determined by the response surface methodology (RSM) approach with respect to important reaction parameters including time, temperature, agitation speed, and amount of enzyme. A high conversion yield was achieved using low enzyme amounts of 2.5% w/w at 60°C, reaction time of 438 min, and agitation speed of 500 rpm. The good correlation between predicted value (96.0%) and actual value (95.5%) implies that the model derived from RSM allows better understanding of the effect of important reaction parameters on the lipase-catalyzed synthesis of adipate ester in an organic solvent-free System. Higher volumetric productivity compared to a Solvent-Based System was also offered by SFS. The results demonstrate that the solvent-free System is efficient for enzymatic synthesis of adipate ester.
Suraini Abd-aziz - One of the best experts on this subject based on the ideXlab platform.
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Optimized lipase-catalyzed synthesis of adipate ester in a solvent-free System
Journal of Industrial Microbiology & Biotechnology, 2009Co-Authors: Naz Chaibakhsh, Mohd Basyaruddin Abdul Rahman, Suraini Abd-aziz, Mahiran Basri, Abu Bakar Salleh, Raja Noor Zaliha Raja Abdul RahmanAbstract:Immobilized Candida antarctica lipase-catalyzed esterification of adipic acid and oleyl alcohol was investigated in a solvent-free System (SFS). Optimum conditions for adipate ester synthesis in a stirred-tank reactor were determined by the response surface methodology (RSM) approach with respect to important reaction parameters including time, temperature, agitation speed, and amount of enzyme. A high conversion yield was achieved using low enzyme amounts of 2.5% w/w at 60°C, reaction time of 438 min, and agitation speed of 500 rpm. The good correlation between predicted value (96.0%) and actual value (95.5%) implies that the model derived from RSM allows better understanding of the effect of important reaction parameters on the lipase-catalyzed synthesis of adipate ester in an organic solvent-free System. Higher volumetric productivity compared to a Solvent-Based System was also offered by SFS. The results demonstrate that the solvent-free System is efficient for enzymatic synthesis of adipate ester.