Immobilization of Lipase A from onto Chitosan-Coated Magnetic Nanoparticles.

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ID: 13225
2019
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Abstract
In this communication, lipase A from (CALA) was immobilized by covalent bonding on magnetic nanoparticles coated with chitosan and activated with glutaraldehyde, labelled CALA-MNP, (immobilization parameters: 84.1% ± 1.0 for immobilization yield and 208.0 ± 3.0 U/g ± 1.1 for derivative activity). CALA-MNP biocatalyst was characterized by X-ray Powder Diffraction (XRPD), Fourier Transform Infrared (FTIR) spectroscopy, Thermogravimetry (TG) and Scanning Electron Microscope (SEM), proving the incorporation of magnetite and the immobilization of CALA in the chitosan matrix. Besides, the immobilized biocatalyst showed a half-life 8-11 times higher than that of the soluble enzyme at pH 5-9. CALA showed the highest activity at pH 7, while CALA-MNP presented the highest activity at pH 10. The immobilized enzyme was more active than the free enzyme at all studied pH values, except pH 7.
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monteiro2019immobilizationinternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Monteiro, Rodolpho R C;Lima, Paula J M;Pinheiro, Bruna B;Freire, Tiago M;Dutra, Lillian M U;Fechine, Pierre B A;Gonçalves, Luciana R B;de Souza, Maria C M;Dos Santos, José C S;Fernandez-Lafuente, Roberto;
Journal International journal of molecular sciences
Year 2019
DOI
E4018
URL
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