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Title

Enzyme immobilization on ordered mesoporous materials: Effect of pH and enzyme size

Year: 1386
COI: ICHEC05_171
Language: EnglishView: 1,837
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Authors

Saeed Sampouri - Dept. of Chem. Eng., University of Isfahan, Isfahan, Iran
Fakhrossadat Seyedayn Azad - Dept. of Chem. Eng., University of Isfahan, Isfahan, Iran
Iran Alemzadeh - Dept. of Oil & Chem. Eng. & Petroleum, Sharif University of Technology, Tehran, Iran

Abstract:

The adsorption of lysozyme and horseradish peroxidase (HRP) on mesoporous molecular sieve, Al-MCM-41, and the effect of pH on it was investigated. Sodium phosphate buffer and sodium bicarbonate buffer were used for adjusting pH. The Al-MCM-41 was synthesized by the hydrothermal method using silicic acid, sodium hydroxide, cetyltrimethylammonium bromide (CTMABr) as template and distilled water as solvent. Al-MCM-41 was characterized by X-ray diffraction and nitrogen adsorption. Lysozyme molecules had greater loading amount than HRP, because lysozyme molecules match the pores of support but HRP molecules are bigger and just adsorbed on the outer surface. The optimum pH was 10 for lysozyme and 5.5 for HRP. These pHs are near isoelectric pH for both enzymes.

Keywords:

Paper COI Code

This Paper COI Code is ICHEC05_171. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/46021/

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Sampouri, Saeed and Seyedayn Azad, Fakhrossadat and Alemzadeh, Iran,1386,Enzyme immobilization on ordered mesoporous materials: Effect of pH and enzyme size,5th International Congress on Chemical Engineering,Kish Island,https://civilica.com/doc/46021

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