Differentiation of natural and synthetic phenylalanine and tyrosine through natural abundance 2H nuclear magnetic resonance

…, G Fronza, C Fuganti, M Pinciroli

Index: Brenna, Elisabetta; Fronza, Giovanni; Fuganti, Claudio; Pinciroli, Matteo Journal of Agricultural and Food Chemistry, 2003 , vol. 51, # 17 p. 4866 - 4872

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Citation Number: 8

Abstract

The natural abundance deuterium NMR characterization of samples of the amino acids tyrosine (1) and phenylalanine (2), examined as the acetylated methyl esters 4 and 6, has been performed with the aim to identify by these means the contribution in animals of the hydroxylation of the diet l-phenylalanine (2) to the formation of l-tyrosine (1), a feature previously revealed on the same samples through the determination of the phenolic δ18O ...