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Quality of strawberries packed with perforated polypropylene.

Sanz, C.; Perez, A. G.; Olias, R.; Olias, J. M.;

Journal of Food Science Year: 1999 Vol: 64 Issue: 4 Pages: 748-752 Ref: 31 ref.

1999

บทคัดย่อ

Quality of strawberries packed with perforated polypropylene.

Perforated polypropylene packages were used to study the effects of perforation on gas concentration and strawberry quality. After picking, strawberries (cv. Camarosa) were packed in 500 g capacity polypropylene punnets and wrapped automatically with polypropylene (thickness 25 micro m). Perforations of 1 mm in diameter were cut in the top surface of the packages. The strawberry packages were treated by simulating transport and shelf-life conditions, during which the packages developed an internal atmosphere with composition close to that recommended for strawberries. This atmosphere controlled decay and reduced deterioration, thus extending postharvest life. After 2 days' shelf-life, control fruits (with macroperforated packaging) showed 72.6% fruit loss, while microperforated packages had about 30% loss. Moreover, fruit ripeness degree and nutritional value were better preserved, although this modified atmosphere packaging seemed to reduce fruit colour, with lower anthocyanin levels, and lead

to off-flavour development.