Study of product tinplate package interaction applied on cupuaçu pulp (Theobroma grandiflorum) / Estudo da interação produto embalagem em folha-de-flandres aplicada a polpa de cupuaçu (Theobroma grandiflorum)

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

The characteristics of the tinplate cans used in the packaging of cupuaçu pulp, were studied aiming the evaluation of the interaction product/packaging, provided that this fruit has high acidity and its has a massive production in the Amazon region, it becomes necessary the evaluation of the factors that may indicate the adequacy of this type of packaging to the pulp. The tinplate can has advantages in usage such as low weight, hermeticism, high mechanical strength, practicality, and transport and customer-usage conveniences. However, the occurrence of interactions between the product and the can material may cause quality loss of the product, besides physical and mechanical properties loss of the can. The technique of electrochemistry impedance spectroscopy was applied to verify aspects of the interaction between the package and product during a 300-day storage period at a temperature of 32o C. Physical characteristics of the cans, levels of dissolved iron and tin, besides physical, chemical, microbiological, and sensory properties of the product were analyzed. The results showed that the combination of the electrochemical impedance spectroscopy technique, atomic emission spectrometry, scanning microscopy and other used provided an understanding on the performance of the varnish used, suggesting that its application on the welding region of the packaging is a determinant factor to the loss of protective features of the coating

ASSUNTO(S)

corrosion corrosão espectroscopia de impedancia alimentos - embalagens canned food electrochemical impedance spectroscopy metais - embalagens coating revestimento de metal metal packaging

ACESSO AO ARTIGO

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