Απομόνωση φαινολικών συστατικών και η ποσοτικοποίηση αυτών με φασματοσκοπία NMR σε εξαιρετικά παρθένα ελαιόλαδα

Postgraduate Thesis uoadl:1316349 416 Read counter

Unit:
Τομέας ΦΑΡΜΑΚΕΥΤΙΚΗΣ ΤΕΧΝΟΛΟΓΙΑΣ
Library of the School of Science
Deposit date:
2011-10-06
Year:
2011
Author:
Σκάντζαρη Αγγελική
Supervisors info:
Αλέξιος-Λέανδρος Σκαλτσούνης, Νεκτάριος Αληγιάννης, Προκόπιος Μαγιάτης
Original Title:
Απομόνωση φαινολικών συστατικών και η ποσοτικοποίηση αυτών με φασματοσκοπία NMR σε εξαιρετικά παρθένα ελαιόλαδα
Languages:
Greek
Summary:
In the present study, different virgin olive oils were studied phytochemically
and 7 natural products were isolated. Virgin olive oils were treated with
adsorption resin XAD7HP, resulting in the production of a fraction, enriched
with polyphenols. The methanol fraction that resulted from the treatment with
resin XAD7HP of the olive oils was studied phytochemically, and 7 natural
products were isolated and identified, which can be categorized to 3 natural
products categories. Specifically, they belong to phenolic derivatives
(hydroxytyrosol), secoiridoids (oleocanthal, oleacin, aldehydic form of
ligstroside, aldehydic form of oleuropein), and lignans
((+)-acetoxypinoresinol). From the isolated products, methyl ester of elenolic
acid 1 is new natural product. Moreover, a procedure was developed for the
isolation of oleocanthal, oleacin and hydroxytyrosol in large quantities, using
only the technology of FCPC, and Quantitation of oleocanthal, oleacin, and the
aldehydic form of ligstroside, using fifteen Greek virgin olive oils from
different regions and producers, by NMR was pkerformed.
Keywords:
Extra virgin olive oil, Oleocanthal, Phenolic compounds of extra virginolive oil, Resin xad7HP, FCPC
Index:
No
Number of index pages:
0
Contains images:
Yes
Number of references:
157
Number of pages:
156
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