BibTex Citation Data :
@article{BCREC8511, author = {Indro Prastowo and Chusnul Hidayat and Pudji Hastuti}, title = {Production of Oleic Acid Ethyl Ester Catalyzed by Crude Rice Bran (Oryza sativa) Lipase in a Modified Fed-batch System: A Problem and its Solution}, journal = {Bulletin of Chemical Reaction Engineering & Catalysis}, volume = {10}, number = {3}, year = {2015}, keywords = {Fed-batch system; rice bran (Oryza sativa) lipase; substrate molar ratio (ethanol/oleic acid); water; zeolite powder}, abstract = { A fed-batch system was modified for the enzymatic production of Oleic Acid Ethyl Ester (OAEE) using rice bran ( Oryza sativa ) lipase by retaining the substrate molar ratio (ethanol/oleic acid) at 2.05:1 during the reaction. It resulted in an increase in the ester conversion of up to 76.8% in the first 6 h of the reaction, which was then followed by a decrease from 76.8% to 22.9% in 6 h later. The production of water in the reaction system also showed a similar trend. The water was hypothesized to lead lipase to reverse the reaction which resulted in a decrease in both (water and esters) in the last 6 h of the reac- tion. In order to overcome the problem, zeolite powder (25 and 50 mg/mL) were added into the reaction system at 5 h of the reaction. As the result, the final ester conversions increased drastically up to 90 - 95.7%. Thus, the combination of a constant substrate molar ratio (ethanol/oleic acid) during the reaction (at 2.05:1) with the addition of zeolite powder (25 and 50 mg/mL) to the reaction system at 5 h is effective for the enzymatic synthesis of OAEE. © 2015 BCREC UNDIP. All rights reserved Received: 2nd May 2015; Revised: 20th June 2015; Accepted: 2nd July 2015 How to Cite : Prastowo, I., Hidayat, C., Hastuti, P. (2015). Production of Oleic Acid Ethyl Ester Catalyzed by Crude Rice Bran ( Oryza sativa ) Lipase in a Modified Fed-batch System: A Problem and its Solution. Bulletin of Chemical Reaction Engineering & Catalysis , 10 (3): 230-236. (doi:10.9767/bcrec.10.3.8511.230-236) Permalink/DOI : http://dx.doi.org/10.9767/bcrec.10.3.8511.230-236 }, issn = {1978-2993}, pages = {230--236} doi = {10.9767/bcrec.10.3.8511.230-236}, url = {https://ejournal.undip.ac.id/index.php/bcrec/article/view/8511} }
Refworks Citation Data :
A fed-batch system was modified for the enzymatic production of Oleic Acid Ethyl Ester (OAEE) using rice bran (Oryza sativa) lipase by retaining the substrate molar ratio (ethanol/oleic acid) at 2.05:1 during the reaction. It resulted in an increase in the ester conversion of up to 76.8% in the first 6 h of the reaction, which was then followed by a decrease from 76.8% to 22.9% in 6 h later. The production of water in the reaction system also showed a similar trend. The water was hypothesized to lead lipase to reverse the reaction which resulted in a decrease in both (water and esters) in the last 6 h of the reac- tion. In order to overcome the problem, zeolite powder (25 and 50 mg/mL) were added into the reaction system at 5 h of the reaction. As the result, the final ester conversions increased drastically up to 90 - 95.7%. Thus, the combination of a constant substrate molar ratio (ethanol/oleic acid) during the reaction (at 2.05:1) with the addition of zeolite powder (25 and 50 mg/mL) to the reaction system at 5 h is effective for the enzymatic synthesis of OAEE. © 2015 BCREC UNDIP. All rights reserved
Received: 2nd May 2015; Revised: 20th June 2015; Accepted: 2nd July 2015
How to Cite: Prastowo, I., Hidayat, C., Hastuti, P. (2015). Production of Oleic Acid Ethyl Ester Catalyzed by Crude Rice Bran (Oryza sativa) Lipase in a Modified Fed-batch System: A Problem and its Solution. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 230-236. (doi:10.9767/bcrec.10.3.8511.230-236)
Permalink/DOI: http://dx.doi.org/10.9767/bcrec.10.3.8511.230-236
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