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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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Publication details

The article was received on 12 Nov 2003, accepted on 20 Feb 2004 and first published on 09 Mar 2004


Article type: Paper
DOI: 10.1039/B316210A
Citation: Photochem. Photobiol. Sci., 2004,3, 337-340
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    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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