Binding of Environmental Pollutants to the Wheat Protein Gliadin Studied by ...

Published: Journal of Chromatographic Science, Volume 37, Number 5, May 1999, pp. 159-164.

Binding of Environmental Pollutants to the Wheat Protein Gliadin Studied by High-Performance Liquid Chromatography
Tibor Cserháti*, Esther Forgács, Agnes Kósa, and Gergely Csiktusnádi Kiss, Roman Kaliszan, Peter Haber, Anton Nasal, and Ferenc Örsi

The interaction of 23 ring-substituted aniline and 22 ring-substituted phenol derivatives with gliadin is studied by reversed-phase high-performance liquid chromatography. The relationship between the strength of interaction and the physicochemical parameters of the solutes is elucidated by principal component analysis followed by traditional and modified nonlinear mapping. It is established that the sterical parameters of solutes exert the highest influence on the interaction. The impact of polarity parameters is of secondary importance. Nonlinear mapping using the absolute values of principal component loadings explains the interaction more precisely than the traditional nonlinear mapping does.

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