Structure Studies on the Nitrosyl Derivative of Heme |
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| Authors: | LEONARD JANKIEWICZ MIROSLAW KWANY KATARNNA WASYLIK ALFREDA GRACZYK |
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| Affiliation: | Authors Jankiewicz and Wasylik are with the Dept. of Food Technology, Agricultural Univ. of Warsaw (SGGW), PL-03–849 Warszawa, Poland. Authors Kwany and Graczyk are with the Institute oi Quantum Electronics, M;Jitary Technical Academy in Warsaw (WAT), PL-00–908 Warszawa, Poland. Address inquiries to Dr. L. Jankiewicz. |
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| Abstract: | 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. |
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| Keywords: | heme nitrosyl chemical structure ligand infrared absorption |
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