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Identifier

000300414

Title

Προσδιορισμός τρισδιάστατης δομής μυκοτοξινών με τη φασματοσκοπία πυρηνικού μαγνητικού συντονισμού (NMR). Σχέση δομής τοξικότητας

Author

Φραγκάκη, Γεωργία Γεωργίου

Thesis advisor

Νταής, Φώτης

Abstract

Two-dimensional NMR spectroscopy has been used for a complete assignment of the proton and carbon-13 spectra of ten mycotoxins, namely four mycotoxins from trichothecenes family (Verrucarin A, Roridin A, T-2 toxin and Diacetoxyscripenol), two mycotoxins from the family of toxic lactones (Patulin and Penicillic acid), Sterigmatocystin, Citrinin, Mycophenolic acid, and Rubratoxin B, which constitute a group of toxic metabolites produced by several species (fungi and moulds). These toxins contaminate a wide variety of foodstuff and represent a serious threat both to humans and animals. In addition, phase-sensitive NOESY experiments and computational molecular modeling (MM2* and MMFF force field programs) have been employed to examine the conformational properties of Verrucarin A and Rubratoxin B in vacuum and in solutions. Finally, some preliminary information has been given about the relationship structure-toxic properties of the mycotoxins of the present study on the basis of relevant information derived from literature.

Language

Greek

Issue date

2007-05-20

Collection

School/Department--School of Sciences and Engineering--Department of Chemistry--Doctoral theses

Type of Work--Doctoral theses

Permanent Link

https://elocus.lib.uoc.gr//dlib/b/1/1/metadata-dlib-107b6f75b978cb0fb2dc43b91c05a90f_1287736014.tkl

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