Efficiency of oxygen: absorbing sachets in different relative humidities and temperatures

Ciência e Agrotecnologia

Renato Souza Cruz²  Nilda De Fátima Ferreira Soares¹  Nélio José De Andrade¹ 

[1] ,Universidade Estadual de Feira de Santana Departamento de Tecnologia Feira de Santana BA

关键词: Active packaging;    oxygen - absorbing;    relative humidity;    temperature;    Embalagem ativa;    sachês absorvedores de oxigênio;    umidade relativa;    temperatura;   

DOI  :  10.1590/S1413-70542007000600029

来源: SciELO

【 摘 要 】

The main objective of this work was to evaluate the efficiency of oxygen - absorbing sachets at relative humidity of 75%, 80% and 85% and different temperatures, 10±2 ºC and 25±2 ºC. The experiment consisted in determining the O2 absorption under these conditions. A sachet was placed in desiccators with an internal air homogenization system. Aliquots of air were removed at pre-established time intervals and analyzed for oxygen content. The results showed that oxygen absorption by the sachet increased as the relative humidity increased for both temperature. Therefore the oxygen - absorbing sachets were most active under 25±2ºC and 85% relative humidity. At ambient condition (25±2ºC/75%RH) the rate of oxygen absorbed was 50 mL/day and 18,5 mL/day for 10±2ºC. It was used a totally casualized design with three replicates.

【 授权许可】

CC BY   
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