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Modeling and optimization of lipase-catalyzed partial hydrolysis for diacylglycerol production in packed bed reactor


Citation

Phuah, Eng Tong and Lee, Yee Ying and Tang, Teck Kim and Lai, Oi Ming and Choong, Thomas Shean Yaw and Tan, Chin Ping and Ng, Wee Nak and Lo, Seong Koon (2016) Modeling and optimization of lipase-catalyzed partial hydrolysis for diacylglycerol production in packed bed reactor. International Journal of Food Engineering, 12 (7). pp. 681-689. ISSN 2194-5764; ESSN: 1556-3758

Abstract

Response surface methodology (RSM) was employed to optimize the process variables namely packed bed height (cm) and flow rates (ml/min) on diacylglycerol (DAG) production via partial hydrolysis of palm oil using immobilized Rhizomucor miehei lipase in packed bed reactor (PBR). Quadratic models were successfully developed for both DAG(y) and unhydrolyzed triacylglycerol ((un)TAG) with determination coefficient (R2) of 0.9931 and 0.9986, respectively coupled with insignificant lack of fit (p > 0.05). Optimal conditions for DAG synthesis were evaluated to be 10 cm packed bed height and 3.8 ml/min flow rate. Immobilized enzyme can be reused up to 10 times without significant changes in enzymatic activity. The partial hydrolysis under studied was found to be mass transfer-controlled.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Faculty of Educational Studies
Faculty of Engineering
Faculty of Food Science and Technology
Institute of Bioscience
DOI Number: https://doi.org/10.1515/ijfe-2015-0381
Publisher: Walter de Gruyter GmbH
Keywords: Diacylglycerol; Packed bed reactor; Palm oil; Partial hydrolysis; Response surface methodology
Depositing User: Ms. Ainur Aqidah Hamzah
Date Deposited: 18 Mar 2022 05:01
Last Modified: 18 Mar 2022 05:01
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1515/ijfe-2015-0381
URI: http://psasir.upm.edu.my/id/eprint/53302
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