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Meat provides an ideal environment for the development of microorganisms, which is why nitrites are commonly used as preservatives. These compounds inhibit bacterial growth, especially under pH conditions close to 6.
Analyzing the concentration of nitrites in meat products ensures that levels remain within the limits established by regulations such as the Codex Alimentarius and NTP (1999 Rev. 2019), thus guaranteeing food safety.
To carry out nitrite analysis in meat, the following laboratory equipment and materials are required:
Laboratory equipment:
Adjustable heating plate: to maintain the temperature of the extract.
Click here to learn more about this equipment.
Required reagents (commercial or prepared in the lab):
Additional materials:
To determine the concentration of nitrites in the sample, apply the following formula:
NaNO₂ (mg/kg) = (L × 5 × 1000) / pm
Where:
According to NTP (1999 Rev. 2019), the maximum permitted levels in meat products are:
Nitrite analysis in meat products is essential to ensure chemical quality and food safety. Thanks to procedures like the one described and the use of laboratory equipment such as the Consul 22 centrifuge it is possible to verify that preservative levels remain within legal limits, protecting the final consumer and ensuring a high-quality product.
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