ISHS Acta Horticulturae 768: XXVII International Horticultural Congress - IHC2006: International Symposium on The Role of Postharvest Technology in the Globalisation of Horticulture
MODIFIED ATMOSPHERE PACKAGING (MAP) EFFECTS ON QUALITY MAINTENANCE AND STORAGE LIFE EXTENSION OF LOCAL IRANIAN APPLE 'GOLAB KOHANZ' |
| Authors: | H.S. Hajizadeh, Y. Mostofi, A. Talaie |
| Keywords: | modified atmosphere packaging, 'Golab Kohanz' apples, quality, storability |
| Abstract:
Modified atmosphere packaging is one method to control respiration rate of a product and spoilage through a decrease in O2 and increase in CO2 concentrations in packages. In an attempt to maintain quality and increase storage life of ‘Golab Kohanz’ apples and experiment was conducted in split factorial design with four replications. Treatments included three different storage temperatures (1, 4 and 25°C); two atmospheres (2% CO2 + 3% O2 and 4% CO2 + 1% O2) and two types of polymeric films (polyethylene and polypropylene). Tissue firmness, TSS, EC, pH, TA, TSS/TA, humidity percentage and rate of ethylene production were measured/ estimated every 14 days. The treatment at 1°C with a gas combination of 1% O2 + 4% CO2 in polypropylene film was the most effective treatment in maintaining quality factors. pH and TSS/TA of fruits showed an increasing trend and TSS, TA decreased during storage. The changes of quality attributes occurred at a slower rate than in controls. Indicating that modified atmosphere packaging retarded apple softening rate and extended storage life in fruit compared to controls. | |
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