Techniques have been developed to keep the freshness of the harvested fruit and vegetables to a certain height according to Yonhap News in South Korea. It is expected to greatly help farmers and distributors by reducing the decaying of fruit during distribution.
Tomatoes are one of the representative crops with a short shelf life, which is fully ripened in ten days after harvest. For this reason, it is important to reduce the distribution period and maintain freshness. For some farmers, especially during the summer months, the yields are about 15-20% due to the rapid ripening of fruits and vegetables.
The RDA has developed new technologies to address these concerns for farmers and retailers. It was found that the sound of a thousand hertz in the harvested tomatoes for six hours and the ripening speed was delayed by as much as 40%. This technology is a principle that produces fewer plant hormones called ethylene, which stimulates the ripening of fruit when a certain height is heard.
Research Institute of Biomaterials Engineering/Rural Development Administration in South Korea said “When plants are treated with sound waves of a certain frequency band, the plant recognizes it as an external signal and transmits the signal to the body to increase or decrease the expression of the related gene.
Best way: speakers are cheap enough and safe for human body and easy to use for everyone. This method can be applied to fruits such as apples and peaches, which is expected to greatly reduce the losses caused by freshness in the distribution process.
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