Oxygen and carbon dioxide permeability values of RC film and
CSL composite films have been presented in Table 4. CSL films have
higher gas permeability values than RC film and give a wide range
of CO2:O2 permeation ratios in the range of 1.05–1.67. Thus, CSL
films can create and maintain a suitable atmosphere, such as
reducing oxygen and elevating carbon dioxide concentrations, so
as to reduce respiration and prevent changes (Yun et al., 2006),
which provides one promising applications as fresh food
packaging.