FILM TYPE AND MAP ON CV. HIMBO TOP RASPBERRY FRUIT QUALITY, COMPOSITION AND VOLATILES.

This study evaluates the effects of different MAP methods (active and passive) on the postharvestlife of raspberry fruits using different plastic packaging films. In particular the comparisonbetween biodegradable and conventional plastic films represent an important objective since notmany studies are available on the effect of biodegradable films used for food packaging. Raspberryfruits were packaged using three different plastic films and were stored with different gas conditionsfor 24, 48, 72 and 96 hours. The gas concentration values of the boxes were monitored dailywith a PBI Dansensor gas analyzer and expressed as percentages. Weight losses, skin color andqualitative and nutraceutical characteristics were monitored during the storage period to identifythe best film-atmosphere combination for raspberry shelf life. Fruit volatile components wereinvestigated. The results show that the evolution of the O2 and CO2 concentrations in the packedbox was more influenced by the film characteristics rather than by the initial gas concentrations.The best maintenance of qualitative characteristics and the lowest weight decrease over 96 hourswas obtained by storing fruits under a biodegradable film.