Overview
Plastic materials are widely used in food packaging due to their versatility, durability, lightweight nature, and cost-effectiveness. However, their extensive use raises growing concerns about food safety and human health. One of the major issues associated with plastic packaging is the migration of chemical substances—such as monomers, additives, plasticizers, stabilizers, and degradation products—from the plastic material into the food it contains. The extent of migration depends on various factors, including the type of plastic, the nature of the food (fatty, acidic, or aqueous), storage temperature, and duration of contact. Over time, these migrated substances can alter food quality and potentially pose toxicological risks to consumers. Understanding the mechanisms and influencing factors of plastic migration is therefore crucial for developing safer packaging materials, establishing regulatory standards, and ensuring the overall protection of public health.