TY - JOUR
T1 - Complete oxidation of egg albumin on photoirradiated TiO2
T2 - Factors determining catalytic performance in solid-solid heterogeneous systems
AU - Kawanami, Akito
AU - Einaga, Hisahiro
AU - Teraoka, Yasutake
PY - 2011/7
Y1 - 2011/7
N2 - Solid-solid heterogeneous photooxidation of egg albumin with TiO 2 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.
AB - Solid-solid heterogeneous photooxidation of egg albumin with TiO 2 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.
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U2 - 10.1007/s11164-011-0295-x
DO - 10.1007/s11164-011-0295-x
M3 - Article
AN - SCOPUS:80051483741
VL - 37
SP - 587
EP - 598
JO - Research on Chemical Intermediates
JF - Research on Chemical Intermediates
SN - 0922-6168
IS - 6
ER -