Japan and the United States rank the top in the world in potato fresh-keeping packaging technology

The best storage temperature of potato is 1-3°C, and normal temperature is above 18°C. Therefore, it is impossible to achieve this requirement by merely using the thermal insulation of corrugated cardboard!
Japan's dehydrated fresh-keeping technology and U.S. ultra-high gas-permeable membrane packaging technology are the advanced countries of potato fresh-keeping packaging technology in the world! The methods adopted by advanced countries in the world include: composite evaporation film on the outer surface of the carton, reflecting radiation; using foam material in the middle of the corrugated board to improve heat insulation (reduce heat transfer coefficient); the other is to use a cooling agent. Coolants are usually alkane and petroleum gel liquids, sealed in film bags or blown plastic containers, which can absorb the heat in the surrounding environment, lower the temperature so that the potato fresh-keeping package is maintained at a certain temperature and humidity, extending Preservation period. And it can be used repeatedly, you can also adjust the amount of coolant, made of adjustable fresh-keeping packaging freezer!
Among them, although there are great advantages in the cold air-conditioning packaging technology, due to the need for cooling equipment and the existence of cold barriers and cytoplasmic ice-blocking obstacles, the promotion of use is limited. The fresh-keeping packaging technology under normal temperature conditions will develop people.
U.S. research on ultra-high gas transmission membranes allows sufficient oxygen to pass through, thereby preventing anaerobic conditions from occurring and achieving optimal atmosphere control and preservation.
(1) Radiation treatment.
(2) coating treatment.
(3) Strictly select ticks and timely harvest.
(4) Clean storage. There are a large number of microorganisms that cause potato rot in packaging materials, packaging containers, and warehouses. The invasion of microorganisms affects the preservation and storage effect.
Japan's dehydration and fresh-keeping packaging technology uses highly absorbent polymers and activated carbon placed in bag-like mats to absorb moisture released from the respiration of potatoes to regulate moisture, while absorbing respirable ethylene and other gases. And the absorption of corrupt odors can prevent condensation; the other is the use of SC film, it also has the function of absorbing ethylene and water vapor, can prevent condensation, but also can adjust the concentration of oxygen and carbon dioxide in the package, but also has a certain The antiseptic effect. The SC film has good transparency and low price, and can prevent the potato from frizz and decay due to moisture evaporation and microbial action. The SC film has good flexibility, is not easily broken, can be used stably for a long time, and has good preservation effect.