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Copper(II) complexes of opiate-like food peptides

Lodyga-Chruscinska, Elzbieta and Micera, Giovanni and Szajdzinska-Piêtek, Ewa and Sanna, Daniele (1998) Copper(II) complexes of opiate-like food peptides. Journal of Agricultural and Food Chemistry, Vol. 46 (1), p. 115-118. eISSN 1520-5118. Article.

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DOI: 10.1021/jf970586h

Abstract

The α-casein peptide fragment (90−96) Arg-Tyr-Leu-Gly-Tyr-Leu-Glu, one of the exorphins called “food hormones”, is an efficient ligand for CuII ions. Potentiometric and spectroscopic studies on aqueous solutions indicate that, depending on the pH range, complex species with different coordination modes (involving the amino and the deprotonated amide groups) are formed. The phenolate side chain of the Tyr residue is not involved in the metal coordination.

Item Type:Article
ID Code:1453
Status:Published
Refereed:Yes
Uncontrolled Keywords:Arg-Tyr-Leu-Gly-Tyr-Leu-Glu, α-casein, exorphins, copper(II) complexes
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:American Chemical Society
eISSN:1520-5118
Deposited On:18 Aug 2009 10:05

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