2.1.6. Packaging of sliced fresh mushrooms
Mushroom slices (one or two, depending on the experiment)
were placed in a plastic Petri dish. The Petri dish was then introduced
into a plastic bag with dimension 11 11 cm, made of
thermosealable polypropylene film provided by the Food Innovation
and Technology Centre from La Rioja (Spain). The film was
manufactured to be used in conventional trays of fresh mushrooms.
The thickness of the film was 40 mm, and it contained 7-8 longitudinal
microperforations per tray of 100mm ± 10% every 15 mm. A
piece of filter paper or active film with dimensions 6.0 6.0 cm was
placed on the inner surface of the upper side of the bag, in such a
way that there was no direct contact between the active agent and
the mushroom. Blank samples without antioxidant were also prepared.
Twenty replicates of each type were prepared.
The mushrooms were stored in a refrigerator at 4 C and
monitored during their shelf-life, performing quality control tests
during 11 days.