How Modified Atmosphere Packaging (MAP) can reduce fresh crops losses and maintain quality Prof. Noureddine Benkeblia YHA_ITP.

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Presentation transcript:

How Modified Atmosphere Packaging (MAP) can reduce fresh crops losses and maintain quality Prof. Noureddine Benkeblia YHA_ITP

FRUITS VEGETABLES

THE TYPES OF ATMOSPHERE MANIPULATION INSIDE THE PACKAGE ARE: 1 THE TYPES OF ATMOSPHERE MANIPULATION INSIDE THE PACKAGE ARE: 1. Controlled Atmosphere Packaging (CAP) 2. Modified Atmosphere Packaging (MAP) 3. Vacuum Packaging

Fresh CROP is STILL ALIVE Respiratory activity of a fresh harvested produce CO2 H2O C2H4 Heat

Potato Storage potential Carrot Green tomato Asparagus Mushroom Lettuce Spinach Brussels sprouts Initial respiration rate at 15°C

MODIFIED ATMOSPHERE PACKAGING (MAP)  The initial application of an atmosphere other than air with no further control of the atmosphere APPLICATION Quantities of fresh vegetables and fruits are transported under modified atmosphere condition

Gas diffusion in and out of a MA package Intelligent & Active Packaging? High O2 (20%) Low CO2 (0%) O2 Atmosphere MAINTAINED by the Packaging Low O2 High CO2 CO2 Fresh Produce CO2 Atmosphere Created by the Respiration of the Crop RESPIRATION O2

Air 100 μ to 30 μ Packaging O2 CO2

Number of Perforations per cm2 Thickness - More Pores  Higher is the Gas Diffusion - Thicker is the film  Lower is the Gas Diffusion

Principles of MAP Preservation Reduce Microbiological growths Reduce spoilage Reduce respiration rate Reduce Browing application of heat Condition: the temperature of storage the lower the better Storage Life 2 times in room temperature + MAP 4 times in refrigerated temperature + MAP

MAP and Shelf-Life Extension of Fresh Crops YHA_ITP

MAP and Shelf-Life Extension of Fresh Crops

4.5 Months at 5°C + MAP 4.5 Months with normal PE film

Cold storage of Broccoli as affected by modified atmosphere packaging

Cold storage of fresh-cut lettuce as affected by modified atmosphere

Yeh Mon, THANK YOU for keeping me Fresh as Fresh You good now?