The Effect of Modified Atmosphere Packaging (MAP) on Increasing Shelf life of Semi-Moistened Figs from Stahban Region

The purpose of this research was to inhibit the proliferation of insects and microorganisms and to preserve the quality of semi-moistened figs. The microbiological, physical and chemical properties and storage pests of semi-moistened figs (cv. Sabz Stahban) in modified atmosphere packaging were evaluated after storage for 3 and 6 months at 25° and 40 C. The gas treatments tested were: 1) 74% N2 + 25% CO2 + 1% O2; 2) 49% N2 + 50% CO2 + 1% O2; 3) 24% N2 + 75% CO2 + 1% O2; 4) 95% vacuum; 5) control sample: 78% N2 + 0.3% CO2 + 21% O2. The effects of gas treatments on semi-moistened fig properties such as color, moisture, total count, mold and yeast, and acidity were insignificant. The effects of treatments were significant for storage pests, such as larva, after 3 months storage at 25°C. The most effective treatment for killing larva was 95% vacuum. Storage at 40°C was not suitable because of its adverse effect on the color and texture of the figs. It can be concluded that modified atmosphere packaging is a good replacement for methyl bromide.