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Structure Studies on the Nitrosyl Derivative of Heme
Author(s) -
JANKIEWICZ LEONARD,
KWANY MIROSLAW,
WASYLIK KATARNNA,
GRACZYK ALFREDA
Publication year - 1994
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1994.tb06896.x
Subject(s) - hemin , heme , chemistry , derivative (finance) , sodium nitrite , ligand (biochemistry) , pigment , nitrite , photochemistry , stereochemistry , combinatorial chemistry , organic chemistry , enzyme , biochemistry , receptor , financial economics , nitrate , economics
The electronic spectra were obtained on the nitrosyl derivative of heme prepared by synthesis from hemin and sodium nitrite within the UV‐vis region. They were compared with spectra of nitrosyl derivative of heme dimethyl ester within the IR region. The degree of hemin reacting with nitric oxide (NO) ligand as well as the stability constant of the heme:NO complex were calculated. Results showed that in the nitrosyl derivative of heme one NO ligand was bound with one heme iron of the pigment. Therefore, it seems that the cooked cured‐meat pigment is a mononitrosyl derivative of heme.