Complete oxidation of egg albumin on photoirradiated TiO2: factors determining catalytic performance in solid–solid heterogeneous systems

Complete oxidation of egg albumin on photoirradiated TiO2: factors determining catalytic... Solid–solid heterogeneous photooxidation of egg albumin with TiO2 was carried out under near UV-light irradiation (λ > 370 nm) and the oxidation behavior was investigated. Egg albumin was photooxidized to form CO2 without evolution of CO and organic byproducts. The activity for TiO2-catalyzed albumin photooxidation strongly depended on the albumin and TiO2 mixing conditions, indicating that the contact conditions between TiO2 and albumin were important for complete oxidation of albumin. In-situ diffuse reflectance FTIR studies revealed that the peptide bond of albumin was decomposed with the alkyl side chains and that decomposition of the peptide bond followed pseudo first-order kinetics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Complete oxidation of egg albumin on photoirradiated TiO2: factors determining catalytic performance in solid–solid heterogeneous systems

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Publisher
Springer Journals
Copyright
Copyright © 2011 by Springer Science+Business Media B.V.
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-011-0295-x
Publisher site
See Article on Publisher Site

Abstract

Solid–solid heterogeneous photooxidation of egg albumin with TiO2 was carried out under near UV-light irradiation (λ > 370 nm) and the oxidation behavior was investigated. Egg albumin was photooxidized to form CO2 without evolution of CO and organic byproducts. The activity for TiO2-catalyzed albumin photooxidation strongly depended on the albumin and TiO2 mixing conditions, indicating that the contact conditions between TiO2 and albumin were important for complete oxidation of albumin. In-situ diffuse reflectance FTIR studies revealed that the peptide bond of albumin was decomposed with the alkyl side chains and that decomposition of the peptide bond followed pseudo first-order kinetics.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Feb 9, 2011

References

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