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Postharvest physiology of bell peppers stored in low density polyethylene bags.

Gonzalez, G.; Tiznado, M.;

Lebensmittel-Wissenschaft & Technologie Year: 1993 Vol: 26 Issue: 5 Pages: 450-455 Ref: 24 ref.

1993

บทคัดย่อ

Postharvest physiology of bell peppers stored in low density polyethylene bags.

Capsicum fruits harvested at the green mature stage were waxed or left unwaxed and seal-packaged or not in low density polyethylene (LDPE) film bags of 2 different thicknesses (0.065 and 0.042 mm) prior to storing at 10 deg C and 75% RH for up to 40 days. The permeabilities of the films to O2 and water vapour were determined. The O2 and CO2 levels of the package atmosphere were determined at 3-day intervals. Fruits were evaluated at 10-day intervals for changes in colour, weight loss, soluble solids, titratable acidity, pH, percentage decay and sensory characteristics. Alcohol dehydrogenase activity was measured as an indicator of anaerobiosis. Packaging plus waxing significantly delayed fruit senescence, delaying the change in colour and reducing weight loss, firmness and percentage decay [unspecified] compared with other treatments. No abnormal flavours were detected in fruits stored at 10 deg for up to 40 days. The results indicate that LDPE bags plus waxing can be used to prolong the shelf-life of Capsicum fruits by up to 20 days, without significantly altering the postharvest quality of the fruits.