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Dynamic Modelling of Enzymatic Hydrolysis of Oil Using Lipase Immobilized on Zeolite

Author

Listed:
  • Aysha Al Qayoudi

    (Chemical and Petroleum Engineering Department, United Arab Emirates University, Al Ain 15551, United Arab Emirates)

  • Sulaiman Al-Zuhair

    (Chemical and Petroleum Engineering Department, United Arab Emirates University, Al Ain 15551, United Arab Emirates
    National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates)

Abstract

Immobilization has been proposed as a way to simplify the separation and repeated reuse of enzymes, which is essential for their feasible application at industrial scales. However, in their immobilized form, enzyme activity is fully utilized, due primarily to the additional diffusion limitations. Here, the immobilization of lipase on zeolite and its use in catalyzing oil hydrolysis is studied. Adsorption isotherms were investigated, and the data identified the model that best describes the process, which is the Sips model. The adsorption capacity of zeolite was determined as 62.6 mg/g, which is relatively high due to the high porosity of the support. The rate of enzymatic hydrolysis of olive oil, using the immobilized lipase, was determined at a pH of 7 and a temperature of 40 °C and was compared to that when using free enzymes. The results determined the parameters for a diffusion-reaction model. The effects of both the surface reaction and diffusion were found to be significant, with a slightly higher effect from surface reactions.

Suggested Citation

  • Aysha Al Qayoudi & Sulaiman Al-Zuhair, 2022. "Dynamic Modelling of Enzymatic Hydrolysis of Oil Using Lipase Immobilized on Zeolite," Sustainability, MDPI, vol. 14(14), pages 1-17, July.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:14:p:8399-:d:858773
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    References listed on IDEAS

    as
    1. Cong Yang & Yifei Wang & Abdullatif Alfutimie, 2022. "Comparison of Nature and Synthetic Zeolite for Waste Battery Electrolyte Treatment in Fixed-Bed Adsorption Column," Energies, MDPI, vol. 15(1), pages 1-14, January.
    2. Md. Matiar Rahman & Abu Zar Shafiullah & Animesh Pal & Md. Amirul Islam & Israt Jahan & Bidyut Baran Saha, 2021. "Study on Optimum IUPAC Adsorption Isotherm Models Employing Sensitivity of Parameters for Rigorous Adsorption System Performance Evaluation," Energies, MDPI, vol. 14(22), pages 1-20, November.
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