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Effects of pH and ionic micelles on the riboflavin-sensitized photoprocesses of tryptophan in aqueous solution

✍ Scribed by E. Silva; V. Rückert; E. Lissi; E. Abuin

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
824 KB
Volume
11
Category
Article
ISSN
1011-1344

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✦ Synopsis

The effects of pH and ionic micelles on the rates of product formation following irradiation of riboflavin in the presence of tryptophan were investigated by absorption and fluorescence spectroscopy. Under anaerobic conditions, formation of riboflavin-tryptophan adducts was inhibited in acid solutions and by the addition of anionic (sodium dodecylsulphate) and cationic (cetyltrimethylammonium bromide) micelles. The oxidation of tryptophan photoinduced by riboflavin was considerable faster in basic solutions.

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