2.1.3. Samples
Sliced mushrooms (Agaricus bisporus) were purchased in a local
market the same day that the experiment was carried out. Only
mushrooms put up for sale the same day of being harvested were
purchased. Mushrooms were supplied in 250 g polystyrene trays
wrapped with extensible, transparent PVC film. Only the slices with
the minimum number of visual injures and high factor of white colour (L* > 80) were selected for this study, limiting the selection
to only 10 e 15 slices per tray.
Filter paper spiked with the selected antioxidants were initially
used as active labels to confirm the antioxidant properties.