Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Individual and Combined Effects of Postharvest Heat Disinfestation Treatments Associated with a Modified Atmosphere Packaging (MAP) on the Quality of Algerian Dates Fruits (Phoenix dactylifera L.).

Version 1 : Received: 23 March 2021 / Approved: 24 March 2021 / Online: 24 March 2021 (13:41:33 CET)

How to cite: Marouf Aribi, M.; Khali, M.; Boutekrabt, L. Individual and Combined Effects of Postharvest Heat Disinfestation Treatments Associated with a Modified Atmosphere Packaging (MAP) on the Quality of Algerian Dates Fruits (Phoenix dactylifera L.).. Preprints 2021, 2021030591 (doi: 10.20944/preprints202103.0591.v1). Marouf Aribi, M.; Khali, M.; Boutekrabt, L. Individual and Combined Effects of Postharvest Heat Disinfestation Treatments Associated with a Modified Atmosphere Packaging (MAP) on the Quality of Algerian Dates Fruits (Phoenix dactylifera L.).. Preprints 2021, 2021030591 (doi: 10.20944/preprints202103.0591.v1).

Abstract

The aim of the study was to assess the chemical and biochemical composition of heat-treated dates palm fruits (Phoenix dactylifera L.) cultivated in Algeria and stored under Modified Atmosphere Packaging (MAP). In this research, fresh dates palm fruits at harvest (Phoenix dactylifera L.) have been subjected at heat treatment at 55 ± 2°C for 20 min in a ventilated oven. The samples were packed in specific Polyethylene Terephthalate packaging (PET) bags with a thickness of 2.5 μm under MAP condition. The effect of this heat treatment on date fruits quality was investigated during 5 months of storage at room temperature storage (22 ± 1°C of temperature with 75 to 80% of relative humidity (RH), and 10 ± 1°C with 85 to 90% of RH). Chemical and biochemical composition of the samples were studied. Results indicated that during storage the Brix degree, protein, and vitamin C content changed significantly (p<0.05). The major change was observed for lipid values varied from about 0.02 to 0.06% at 10°C, and 0.04 to 0.07% at 22°C for samples not heat-treated unpacked after 5 months of storage, these results represent a highly significant difference (p<0.01). Harvesting at Tamr stage followed by treating the fruits with heat disinfestation packed in MAP, and storing at 10 ± 1°C showed to be a promising method for maintaining dates fruits storage quality.

Keywords

Phoenix dactylifera L.; postharvest; modified atmosphere packaging (MAP)

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