QUALITY EVALUATION OF THE INTERNAL METALLIC COATING FOR SOME FOODS THAT AVAILABLE IN THE LOCAL MARKETS

Abstract

The study aimed to estimate the content of lead and determine the quality of the internal coating of metal cans through electrical conductivity as well as to determine the accuracy of the information card for some types of canned food that available in local markets. The information card test showed that all of these samples contained the name of the food, trade mark, country origin, weight, and components, as was indicated by the company producing in all of them except for the C₁₂ sample which was otherwise, and the batch number was mentioned in all samples except for the C₃ and C₁₇ which was not clear and not mentioned in the C₂₁, and the validity period was observed (produce and finish) in all samples except for the C₃, which was not clear, and all the samples contained storage conditions and warning signs except for the C₁ and C₃ that were not mentioned, and the language of the card for all models was Arabic and English as well as the C₃ form contained the Persian language and the form C₂₁ on the French language. The lead content (mg/ kg) in all samples was within the permissible limit in the Iraqi standard specifications, and the examination of the electrical conductivity of the internal metallic coating of canned food samples showed that the recorded values ​​for the form C₁, C₉, C₁₂ and C₂₀ were 19.6±0.2944, 155.2±3.2568, 135.8±2.7725 and 88.5±2.8856 mA respectively, and this indicates the failure of these samples due to the electrical conductivity exceeding 10mA, while the C₂, C₃, C₅, C₆, C₇, C₁₀ and C₁₁ samples succeeded in passing this test because the electrical conductivity did not exceed the permissible limit, while no examination of the remaining models for failure to fix the electrode at the base of the package.