Preparation of glycosylated nitrosohemoglobin by maillard reaction and its stability under fluorescent light at 20°C

One of the roles nitrite played in meat curing is to produce the characteristic pink color, but the use is limited due to its potential carcinogenicity. In this study, porcine blood was used for synthesizing glycosylated nitrosyl-hemoglobin (G-NO-Hb) through maillard reaction and the preparation conditions were optimized. Also, the stability of G-NO-Hb was assessed by ITV-Vis spectra. The results showed that: the optimum ratio of blood cells to water was 1: 2, nitrite of 2 mg/kg reaction mixture was chosen. The synthesized G-NO-Hb solution was rather stable under light radiation at 20 degrees C for 20d. It revealed that G-NO-Hb was a potential stable pigment used for meat curing as a nitrite substitute.