Unit:
Τομέας Ι [Θεωρητική Χημεία – Φυσικοχημεία – Ανόργανη Ανάλυση – Ενόργανη Ανάλυση – Οργανολογία – Χημική Μηχανική (Εφαρμ. Φυσικοχημεία)]Library of the School of Science
Author:
Χριστοδουλέας Διονύσιος
Dissertation committee:
Καλοκαιρινός Αντώνης Καθηγητής ΕΚΠΑ (Επιβλέπων), Ευσταθίου Κωνσταντίνος Καθηγητής ΕΚΠΑ, Κουππάρης Μιχαήλ Καθηγητής ΕΚΠΑ
Original Title:
Μελέτη αντιοξειδωτικών ιδιοτήτων ελαίων με αναλυτικές φασματοχημικές τεχνικές
Summary:
This thesis deals with the development and validation of spectrophotometric
analytical methods for the determination of the antioxidant properties of
edible oils. In this work, the following nine spectrophotometric analytical
methods, able to estimate the antioxidant properties of edible oils, have been
developed and validated: (a) a modified DPPH method, (b) a modified ABTS
method, (c) a modified CUPRAC method, (d) a modified Fe-phenanthroline method,
(e) a chemiluminogenic flow method (FIA-CL) based on chemiluminogenic reaction
of lucigenin with alkaline hydrogen peroxide solution, (f) a fluorimetric
method based on N-methylacridone produced from the reaction of lucigenin with
alkaline hydrogen peroxide solution, (g) a chemiluminogenic flow method
(FIA-CL) based on the reaction of luminol with alkaline hydrogen peroxide
solution and (h) two chemiluminogenic methods based on the reaction of
peroxyoxalates with hydrogen peroxide. The developed assays have been applied
to the evaluation of antioxidant activity of standard compounds and to the
evaluation of total antioxidant activity of several edible oils as well as
their lipophilic and hydrophilic extracts. The obtained results were compared
and discussed.
Keywords:
Spectrophotometry, Chemiluminescence, Fluorescence, Antioxidant activity, Reactive oxygen species
Number of index pages:
1-11
Number of references:
303
File:
File access is restricted.
document.pdf
3 MB
File access is restricted.