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Studio dell'impronta isotopica del deuterio di oli alimentari mediante la spettroscopia NMR del 2H e 1H

Scano, Paola - Cesare Marincola, Flaminia - Casu, Mariano - Saba, Giuseppe - Lai, Adolfo (2000) Studio dell'impronta isotopica del deuterio di oli alimentari mediante la spettroscopia NMR del 2H e 1H. Rendiconti del Seminario della Facoltà di Scienze dell'Università di Cagliari, 70 (Supple). pp. 92-97. ISSN 0370727X

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Abstract

A report is given on 2H and 1H NMR investigations of a number of triacylglycerol mixtures of edible oils and squalene samples extracted from extra virgin olive oil, shark liver and synthetic. The average numbers of hydrogen and deuterium for the olefinic, methylene and methyl sites were determined, and some parameters describing the different fractionation of deuterium in the various sites were obtained. The results have been discussed in terms of the biosynthesis steps involved in the elongation and desaturation processes of the fatty acids, and in the condensation and reduction processes of the squalene. From a principal components analysis distinct domains have been found for the squalene samples from shark liver, olive oil and synthetic.

Item Type:Article
Date:2000
Institution:Università degli Studi di Cagliari
Divisions:Centri > Seminario Scientifico della Facolta' di Scienze MM.FF.NN.
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Uncontrolled Keywords:Triacylglycerol mixtures, edible oils, squalene samples, hydrogen, deuterium
ID Code:321
Deposited On:13 Nov 2008 10:25

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