Effect of Iron Form, Temperature, and Inoculation with Clostridium botulinum Spores on Residual Nitrite in Meat and Model Systems
Document Type
Article
Journal/Book Title/Conference
Journal of Food Science
Volume
52
Issue
6
Publication Date
1987
First Page
1464
Last Page
1470
Abstract
The effect of iron form (ferrous, ferric, heme), temperature and botulinal spores on nitrite level was determined in meat. In model systems, ferritin iron was also included, and ascorbate was used as a reducing agent. Reduced hemoglobin caused the most rapid nitrite depletion in both systems. Ferrous iron caused faster nitrite depletion in model systems than in meat. Ferrous iron reduced nitrite readily in model systems at 27°C, but not at 5°C. Ferritin iron did not affect nitrite level. In meat at 27°C, nitrite depletion was much faster in inoculated samples. Protein-bound nitrite levels were higher in meat with added ionic iron. In cured meat with added ionic iron, iron-NO-protein complexes may form, lowering the amount of nitric oxide (NO) available to inhibit botulinal spore outgrowth.
Recommended Citation
Kim, C., Carpenter, C.E., Cornforth, D.P., Mettanant, O., and Mahoney, A.W. 1987. Effect of iron form, temperature, and inoculation with Clostridium botulinum spores on residual nitrite in meat and model systems. J. Food Sci. 52:1464.
Comments
Originally published by Wiley Interscience. Abstract and full text available via remote link.