| چکیده انگلیسی مقاله |
The effect of storage at 0 and 20°C for 30 days with and without a passive Modified Atmosphere Packaging (MAP) and the effect of a freezing storage at -20, -40 and -80°C for 10 months followed by 1 week at 5°C on overall quality of Deglet Nour dates were studied. After the storage time, the physicochemical properties and sensory quality, microbial development, and moth infestation (Ectomyelois ceratoniae) of dates were monitored. It was observed that the storage temperature greatly affected the overall quality of dates. The 0°C was recommended for a short-term storage of fresh dates of one month. The MAP technique (6 kPa O2+12 kPa CO2) showed a positive effect on keeping overall quality of dates at 20ºC. However, for a long-term storage (10 months in frozen conditions plus 1 week at 5ºC), all freezing temperatures assayed kept the overall quality of dates and no differences were observed among them. In order to minimize the global costs, -20°C was considered as the most adequate temperature for a long-term freezing storage period. In conclusion, these chilling and freezing techniques could be recommended for commercial use at industrial scale. |
| نویسندگان مقاله |
| M. Jemni
Regional Research Center in Oasis Agriculture of Degache, Tunisia.
Regional Research Center in Oasis Agriculture of Degache, road of Tozeur Km1, 2260 Degache, Tunisia
| J. G. Ramirez
Postharvest and Refrigeration Group, Department of Food Engineering, Universidad Politécnica de
Postharvest and Refrigeration Group, Department of Food Engineering, Universidad Politécnica de Cartagena (UPCT), Paseo Alfonso XIII, 48, 30203 Cartagena, Murcia, Spain
| M. Oton
Institute of Plant Biotechnology, UPCT, Campus Muralla del Mar, Cartagena, Murcia, Spain.
Institute of Plant Biotechnology, UPCT, Campus Muralla del Mar, 30202 Cartagena, Murcia, Spain
| F. Artés-Hernandez
Institute of Plant Biotechnology, UPCT, Campus Muralla del Mar, Cartagena, Murcia, Spain.
Postharvest and Refrigeration Group, Department of Food Engineering, Universidad Politécnica de Cartagena (UPCT), Paseo Alfonso XIII, 48, 30203 Cartagena, Murcia, Spain
| K. Harbaoui
Regional Center for Research in Field Crops, Beja, Tunisia.
Regional Centre for Research in Field Crops, 350, 9000 Beja, Tunisia;
| A. Namsi
Regional Research Center in Oasis Agriculture of Degache, Tunisia.
Regional Research Center in Oasis Agriculture of Degache, road of Tozeur Km1, 2260 Degache, Tunisia
| A. Ferchichi
National Agronomic Institute of Tunisia, Street Charles Nicolle, Tunis, Mahrajene, Tunisia.
National Agronomic Institute of Tunisia, Street Charles Nicolle, 43, 1082 Tunis, Mahrajene, Tunisia.
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