[Sodium nitrite in cooked meat during 2012-2015 in China]

Area of Science:

• Food Science
• Food Safety
• Analytical Chemistry

Background:

• Sodium nitrite is a common additive in processed meats.
• Monitoring its levels is crucial for public health.
• Previous data on contamination in Chinese cooked meats is limited.

Purpose of the Study:

• To assess sodium nitrite contamination in cooked meat products across China from 2012 to 2015.
• To identify high-risk product types and market channels.

Main Methods:

• National standardization methods were employed for sample detection.
• Analysis followed the GB 2760-2014 standards.
• Data was collected over a four-year period (2012-2015).

Main Results:

• Average sodium nitrite levels were 9.7 mg/kg, with a range from undetectable to 85.3 mg/kg.
• The overall exceedance rate was 4.8% (922/19360).
• Visceral products had the highest average nitrite content (16.6 mg/kg).
• Farmers' markets and bulk samples showed significantly higher exceedance rates compared to packaged products.
• Exceedance rates decreased annually, with bulk sauce-stewed meat in farm markets being a key issue (9.5% exceedance).

Conclusions:

• Cooked meat quality regarding sodium nitrite improved over the four-year study period.
• Bulk products remain a focus area for contamination control.
• The overall risk associated with nitrites in cooked meat is considered low.