In food applications, sodium carboxymethyl cellulose (CMC) is used as a food additive with various functions, including thickening, stabilizing, emulsifying, and controlling moisture retention. To ensure the safety and quality of food products, there are specific requirements and regulations that govern the use of CMC. Here are some key requirements for CMC in food applications:

1. Regulatory Approval:
   • CMC used in food applications must comply with regulatory standards and receive approval from relevant authorities, such as the U.S. Food and Drug Administration (FDA), the European Food Safety Authority (EFSA), and other regulatory agencies in different countries.
   • CMC must be recognized as Generally Recognized as Safe (GRAS) or approved for use as a food additive within specified limits and under specific conditions.
2. Purity and Quality:
   • CMC used in food applications must meet strict purity and quality standards to ensure its safety and efficacy.
   • It should be free from contaminants, such as heavy metals, microbial contaminants, and other harmful substances, and comply with maximum allowable limits specified by regulatory authorities.
   • The degree of substitution (DS) and viscosity of CMC may vary depending on the intended application and regulatory requirements.
3. Labeling Requirements:
   • Food products containing CMC as an ingredient must accurately label its presence and function in the product.
   • The label should include the name “carboxymethyl cellulose” or “sodium carboxymethyl cellulose” in the ingredient list, along with its specific function (e.g., thickener, stabilizer).
4. Usage Levels:
   • CMC must be used in food applications within specified usage levels and according to Good Manufacturing Practices (GMP).
   • Regulatory agencies provide guidelines and maximum allowable limits for the use of CMC in various food products based on its intended function and safety considerations.
5. Safety Assessment:
   • Before CMC can be used in food products, its safety must be evaluated through rigorous scientific assessments, including toxicological studies and exposure assessments.
   • Regulatory authorities review safety data and conduct risk assessments to ensure that the use of CMC in food applications does not pose any health risks to consumers.
6. Allergen Declaration:
   • Although CMC is not known to be a common allergen, food manufacturers should declare its presence in food products to inform consumers with allergies or sensitivities to cellulose derivatives.
7. Storage and Handling:
   • Food manufacturers should store and handle CMC in accordance with recommended storage conditions to maintain its stability and quality.
   • Proper labeling and documentation of CMC batches are necessary to ensure traceability and compliance with regulatory requirements.

adherence to regulatory standards, purity and quality requirements, accurate labeling, appropriate usage levels, safety assessments, and proper storage and handling practices are essential for the use of CMC in food applications. By meeting these requirements, food manufacturers can ensure the safety, quality, and compliance of food products containing CMC as an ingredient.