The usage of modified atmosphere packing (MAP) as a useful method in maintaining the quality of agricultural products

Koleva Gudeva, Liljana and Trajkova, Fidanka (2024) The usage of modified atmosphere packing (MAP) as a useful method in maintaining the quality of agricultural products. In: 4th International Meeting ‘Agriscience & Practice’ ASP 2024, 13 June 2024, Stip, Republic of North Macedonia.

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Abstract

One of the most important technologies for preserving food quality and fruit shelf-life extension is modified atmosphere packing (MAP). MAP means changed gas environment in the product packaging. Fresh food products continued to “breath” after the harvest, even when they are packed or because they contain microorganisms that “breath”. In this process, the oxygen the present air is consumed, and carbon dioxide and water vaper are produced, which changes the gas environment.
When agricultural products are taken out of the natural environment after harvesting, a reversed reactions of decompositions (degradation) of carbohydrates, proteins and fats begin. They react with О2 and release CO2, water vapor and heat, which is the basic function of cellular respiration. Therefore, the concentration of O2 should be reduced, the concentration of CO2 should be increased, and the humidity and temperature should be regulated in the packaging. These parameters affect the development of various microorganisms as addition to primary decomposition processes.
MAP of fresh fruit and vegetables is based on changing the concentration of О2 and CO2 in the environment of manufactured package. Usually, MAP package is closed with a layer as polymer film. MAP successfully inhibits the chemical, enzymatic and microbial processes associated with the degradation of fresh food, thus it contributes to omitting the use of other chemical or thermal processes, such as freezing, dehydration and sterilization.

Item Type:	Conference or Workshop Item (Poster)
Subjects:	Agricultural Sciences > Agriculture, forestry, and fisheries
Divisions:	Faculty of Agriculture
Depositing User:	Fidanka Trajkova
Date Deposited:	11 Sep 2024 09:11
Last Modified:	11 Sep 2024 09:11
URI:	https://eprints.ugd.edu.mk/id/eprint/34612

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