How to keep flowers fresh by modified atmosphere storage

This method is mainly controlled by the artificial environment, changing the gas composition to achieve the purpose of preservation. Generally, the oxygen content is controlled between 0.5% and 1.0%, and the carbon dioxide content is controlled between 5% and 10%. If the oxygen content is too high, the breathing speed is high and it is not conducive to freshness. If the oxygen content is too low, the flower material will decay due to anaerobic respiration. Preservation of fresh flower arrangements should be noted: (1) There are many factors that affect the preservation of flower materials, both in terms of their own aspects of the flowers, but also in terms of environmental conditions. No matter which kind of preservation method is used, the first choice should be the selection of quality flower material, which requires fresh, no pest damage. If it is a floral flower, it is better to open the flower when it is 60% open. (2) The most important environmental factors for the storage of floral materials are temperature and humidity. It is required that the ambient temperature is close to the optimum temperature for storage, and no Fruit producing ethylene should be present around it. Humidity generally requires a relative humidity of 85% or more. If it does not meet the requirements, it may be covered with a plastic film or a wet cloth to improve the local humidity conditions. Which specific method to use should be selected according to the specific requirements of the material and the conditions. (3) To choose a good vase. Fresh cut flowers cannot be inserted into metal vases because water contact with the metal generates some substances that are harmful to the flowers. (4) The flowers that are inserted must not be too dense and should be sparse. (5) It is preferable to keep the water temperature at 20 to 24°C. Before the flowers are inserted into the vase, the leaves and buds under the flowers should be removed so that they do not come into contact with water. (6) The stems of the flowers should be cut diagonally in the water. Therefore, the stems are cut in the air, and the microorganisms will enter the incised capillaries with the air, which will quickly block the capillaries and destroy the nutrition of the stems. In addition, the oblique cut forms a large surface for the flower to absorb moisture.

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