The construction of a diffusion cell and the determination of oxygen and carbon dioxide perm abilities in flexible food packages
Juan Carlos Guevara-Arauza Elhadi M. Yania, Luis Cedeno and Eduardo Barzanz
9th Controlled Atmosphere Research Conference (CA2005). Program and AbstractMichigan State University, East Lansing, Michigan, USA. July 5-10, 2005. page50
2005
บทคัดย่อ
The construction of a diffusion cell and the determination of oxygen and carbon dioxide perm abilities in flexible food packages
Flexible food packages should be characterized by an adequate permeability for water vapor and gases.In this work wehave constructed a diffusion cell for the measurement of gas permeability, and we have determined O2 (P02), CO2 (PCO2) and water vapor (PH20) permeability of 92 flexible packages used commercially in Mexico in a variety of foods classified in 17 groups.The diffusion cell was constructed from acrylic plates and was conditioned with 4 valves and a manometer for pressure control.It is composed of 2 compartments separated by the film to be evaluated.The values of PCO2 and P02 were found to be in the range of those reported for similar packages, indicating that the constructed diffusion cell is reliable.The cost of the construction of this cell was very low, and the time required for analysis is shorter compared to standard methods.