Citation
E. Lodygachruscinska et al., COPPER(II) COMPLEXES OF OPIATE-LIKE FOOD PEPTIDES, Journal of agricultural and food chemistry, 46(1), 1998, pp. 115-118
Citations number
16
Categorie Soggetti
Food Science & Tenology",Agriculture,"Chemistry Applied
Journal title
ISSN journal
00218561
Volume
46
Issue
1
Year of publication
1998
Pages
115 - 118
Database
ISI
SICI code
0021-8561(1998)46:1<115:CCOOFP>2.0.ZU;2-M
Abstract
The alpha-casein peptide fragment (90-96) Arg-Tyr-Leu-Gly-Tyr-Leu-Glu,
one of the exorphins called ''food hormones'', is an efficient ligand
for Cu-II ions. Potentiometric and spectroscopic studies on aqueous s
olutions indicate that, depending on the pH range, complex species wit
h different coordination modes (involving the amino and the deprotonat
ed amide groups) are formed. The phenolate side chain of the Tyr resid
ue is not involved in the metal coordination.