Development of perforated modified atmosphere package for mango.
Yantarasri T., Ben-Yehoshua S., Rodov V., Kumpuan W., Uthaibutra J., Sornsrivichai J.
Author Affiliation: Postharvest Research Center, Institute for Science and Technology Research and Development, Chiang Mai University, Chiang Mai 50200, Thailand.
: 81-91
Abstract : Unperforated PVC film packaging of mango was not sufficiently permeable for O2 exchange to allow proper ripening. Storage of cv. Nam Dork Mai fruits in wrapped polystyrene trays (3 fruits/pack) in Thailand at 20°C required a perforated film area ? 0.004 cm² (?7% O2) to ripen normally and to prevent an off-flavour developing. Colour development of the peel required a higher concentration of O2 than the flesh. A film with a pore area ?0.008 cm² (?7% O2) allowed fruit colour to develop after 3 weeks while a pore area ?0.39 cm² (?19% O2) allowed the fruit to colour within 2 weeks. Similar investigations into individually sealed cv. Keitt fruits in Israel found that unperforated polyolefin film extended the storage life to 4-6 weeks by preventing over-ripening.