善水科技

Application of color fixative

2023-01-11

Nitrite is one of the substances with strong acute toxicity in additives, and it is a highly toxic drug, which can turn normal hemoglobin into methemoglobin, lose the ability to carry oxygen, and lead to tissue hypoxia. Secondly, nitrite is the precursor of nitroso compounds, and its carcinogenicity has attracted attention. Therefore, all aspects require that the addition of nitrate and nitrite be limited to a low level under the condition of ensuring color protection.

Ascorbic acid has a high affinity with nitrite and can prevent nitrification in vivo, thus almost inhibiting the formation of nitroso compounds. Therefore, adding an appropriate amount of ascorbic acid during meat curing may prevent the formation of carcinogens.

Although the use of nitrate and nitrite has been greatly restricted, they are still being used at home and abroad. The reason is that nitrite plays a special role in maintaining the color, aroma and taste of cured meat products, and no ideal substitute has been found so far. The more important reason is the inhibition of nitrite on Clostridium botulinum. However, there are strict requirements for the food used and its usage and residue.


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