title: Formation of excited states during the oxidation of caffeic and 3,4 dihydroxyphenylacetic acids catalyzed by catechol oxidase.
abstract: The oxidation of caffeic and 3,4-dihydroxyphenylacetic acids by catechol oxidase leads to formation of excited species as indicated by chlorophyll sensitized emission. The chemiexcitation step and the transfer are efficient and favoured by the hydrophobic medium. The oxidation of Catecholamines such as L-DOPA, adrenaline and noradrenaline by catechol oxidase does not lead to excitation of chlorophyll.
mesh_terms: D015102:3,4-Dihydroxyphenylacetic Acid / Q000378:metabolism*; D002109:Caffeic Acids / Q000378:metabolism*; D004156:Catechol Oxidase / Q000378:metabolism*; D002734:Chlorophyll / Q000378:metabolism; D000077194:Chlorophyll A; D002934:Cinnamates / Q000378:metabolism*; D004735:Energy Transfer; D010084:Oxidation-Reduction; D010648:Phenylacetates / Q000378:metabolism*; D011809:Quinones / Q000378:metabolism; D013050:Spectrometry, Fluorescence
chemical_list: D002109:Caffeic Acids; D002934:Cinnamates; D010648:Phenylacetates; D011809:Quinones; D015102:3,4-Dihydroxyphenylacetic Acid; D002734:Chlorophyll; D004156:Catechol Oxidase; D000077194:Chlorophyll A