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Issue 4, 2004
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Riboflavin-sensitized photooxidation of isohumulones and derivatives

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Abstract

Isohumulones, the bitter principles in beer, are decomposed by light-induced reactions, thereby adversely affecting beer quality. Upon absorption of visible light, riboflavin is excited and interacts with isohumulones, as well as with oxidized and reduced derivatives thereof. Reaction kinetics were investigated by laser flash photolysis at 355 nm and at 440 nm, and analysis of kinetic data afforded detailed insights into the reaction mechanism.

Graphical abstract: Riboflavin-sensitized photooxidation of isohumulones and derivatives

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Article information


Submitted
12 Nov 2003
Accepted
20 Feb 2004
First published
09 Mar 2004

Photochem. Photobiol. Sci., 2004,3, 337-340
Article type
Paper

Riboflavin-sensitized photooxidation of isohumulones and derivatives

K. Huvaere, K. Olsen, M. L. Andersen, L. H. Skibsted, A. Heyerick and D. De Keukeleire, Photochem. Photobiol. Sci., 2004, 3, 337
DOI: 10.1039/B316210A

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