EFFECT OF MODIFIED ATMOSPHERE PACKAGING (MAP) ON THE QUALITY OF SEA BUCKTHORN BERRY FRUITS DURING POSTHARVEST STORAGE

摘要

The effect of modified atmosphere packaging (MAP) on the quality of the berryrnfruits of sea buckthorn (SBT) during refrigerated storage was investigated. SBTrnberries were packaged in 160 and 525 oxygen transmission rate (OTR) films or inrnvented clamshell containers (air control) and stored at 10C for 10 days. Changes inrnthe quality of the berries were determined by the evaluation of their headspacerncomposition, moisture content, dry weight, pH level, color, total soluble solids,rntexture and antioxidant activity. The results indicated that the 160 OTR film presentedrngood competency to maintain a proper atmosphere for storage. Both thern160 and 525 OTR films showed better capability for retaining the firm and springyrntexture of the berries, as well as their weight. The total soluble solids of 160 OTRrnpacked fruits remained a stable value. The pH of SBT berries packed in differentrnfilms and control samples increased in general during storage compared with therninitial pH of fruits. The antioxidant activity of the berries was higher in MAPrnsamples, especially those in the 160 OTR packages.