To evaluate the effect of modified atmosphere package
(MAP), a single kind of potato crisps (brand 1) was stored at
room temperature, in darkness, under different atmospheres:
intact (market sample) atmosphere, air, vacuum, oxygen
scavenger (Ageless; Mitsubishi Gas Chemical Co., Japan)
and nitrogen. A semiautomatic packaging machine (Audiovac
VM 101 HG, Rovebloc, Weesp, The Netherlands) was
used to flush potato crisps packages with nitrogen, air and
vacuum.