Korea Develops New Packaging Technology: Fresh tomatoes can be extended 2 times

[China Packaging Network News] July 27, the Korea Agricultural News Agency issued a report that the development of a small tomato to extend the freshness of the new packaging technology, the technology is mainly through the use of a certain proportion of gas mixture to replace The air in the small tomato packaging container is realized. It is reported that the core of this technology is to pack small tomatoes and fill them with gas that can maintain freshness. The gas used is a mixture of nitrogen, oxygen, and carbon dioxide.
The specific method is to load 750 grams of small tomatoes into the container, extract the air to form a vacuum and then fill with a mixture of nitrogen, oxygen and carbon dioxide. The proportion of the mixed gas is 91% of nitrogen, 6% of oxygen, and 3% of carbon dioxide. The plastic film used for the packaging is a plastic film having the smallest change in gas concentration in a circulation environment at 10 to 20° C., and its oxygen transmission rate is 25,000 OTR (Oxygen Transmission Rate, cc/24 hr·m 2 ).
In the 15°C flow environment, this technology reduced the breathing rate of small tomatoes by 1/3 compared to ordinary vacuum packaging, and the time for small tomatoes to remain fresh also extended from 3 days to 6 days. Under this technique, in addition to the effect of reducing the respiration rate of the fruit, there is the effect of maintaining the color of the fruit surface, the firmness of the pulp, and the freshness of the pedicle.