Application of Modified Atmosphere Packaging for Food Preservation 3

25-05-2020

MAP packaging for Fresh fruits and vegetables:

After harvesting fruits and vegetables, they still maintain the metabolic breathing activity of absorbing O2 and discharging CO2. For example, if the O2 content in the package is reduced and the CO2 content is increased, the fruits and vegetables can maintain weak aerobic respiration without anaerobic respiration. The aging process of fresh fruits and vegetables is delayed, reducing the metabolism rate, thereby prolonging the shelf life. The modified atmosphere packaging of fresh fruits and vegetables uses a breathable plastic film as the gas exchange membrane. The gas in the package exchanges gas with the atmosphere, and the infiltration of O2 from the atmosphere and the discharge of excess CO2 from the package maintains the weak aerobic breath of fruits and vegetables. The shielding gas consists of gases such as O2, CO2, and N2. The fresh-keeping period of modified atmosphere packaging is determined according to the variety and freshness of fruits and vegetables, such as vegetables, mushrooms, litchi, etc. The fresh-keeping period at a temperature of 0 ~ 6 ℃ is 25 ~ 60 days.

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