History of Curing Chemistry and Colour Science
The historical development of explanations for cured colour, nitrite and nitrate reactions, salt chemistry, oxidation and pigment stability.
Curers recognised colour and keeping effects before the active reactions were understood. Early descriptions often mixed practical observation with incorrect mechanisms.
Research on myoglobin, nitric oxide and oxidation gradually explained why curing salts, reducing conditions, heat and oxygen produce different colours.
The role of microbial nitrate reduction and nitrite became clearer through analytical chemistry and microbiology, changing formulations and regulation.
Improved assays, reference materials and controlled experiments distinguished active-ion concentration from trade-mix weight and supported enforceable limits.
Knowledge of toxicology, nitrosation and processing conditions led to tighter controls, ascorbate use, lower residuals and product-specific rules.
Keep historical mixtures and terminology in their period. Connect modern technical explanations to current chemistry articles without rewriting the past as present advice.
References
- https://www.nist.gov/standards-measurements
- https://www.nist.gov/calibrations/traceability
- https://www.fao.org/fao-who-codexalimentarius/publications/en/