| http://www.w3.org/ns/prov#value | - Processes of the present invention are of especial value in prolonging the freshness of a wide range of foodstuffs by so-called modified atmosphere packaging techniques referred to in this specification as MAP. In these processes the food is packaged in a container such as a bag or covered tray made of thermoplastics materials which are highly resistant to gas diffusing through the walls of the co
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