During the thermal processing and storage, oxygen permeability
(OP) of SIOX increased significantly. Due to the high OP of retorted
SIOX, salmon packaged in this material had higher TBARS value and
less acceptability than salmon packaged in FOIL pouches after 8
weeks of storage. Overall, shelf stable salmon packaged in ALOX had
a shelf life comparable to salmon packaged in a traditional FOIL
pouch material, while salmon packaged in SIOX had a significantly
lower shelf life than salmon packaged in either ALOX or FOIL. In
addition, both ALOX and SIOX had better mechanical properties
than FOIL after retorting and 12 weeks of storage.
References