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Citrus anti-corrosion paint preservation technology
After soaking, spraying or smearing on the fruit surface of the citrus, the anti-corrosion coating can form a layer of film to protect and block the exchange of gas. It can reduce the respiratory intensity of fruit, reduce water evaporation and inhibit the infection of microorganisms, so as to achieve freshness preservation and reduction. Decompose and extend the purpose of the storage period. The use of anti-corrosive coatings are manual and mechanical. 1 Hand-coating: Use a 300cm long, 60cm wide, and 20cm high wooden trough, and place 2~30cm thick foam in the trough to prevent the citrus from mechanical damage caused by knocking on the wood when pouring the fruit. At the same time, it can also be used to suck the foot. liquid. Each time, 25 to 30 kg of citrus are poured into the tank. Use a sprayer to spray the mixed liquid (0.1% to 0.15% of the fruit weight) on the citrus in the tank, while tilting the wooden trough by about 20 degrees, and smear the fruit evenly with a towel or sponge with a suitable amount of liquid. The edge of the edge of the notch in the wood is slowly pushed by the edge of the wood and the citrus is rolled into the wooden box. On average, more than 1,500 kg of fruit can be coated per person per day. 2 Mechanical coating: Automatic coating with a mechanical fruit coating machine provided by the Nanjing Institute of Forest Chemicals can be applied for about 10 tons per hour. Pay attention to uniform wax coating, can not accumulate wax liquid on the skin, so as not to form a brown lump after drying, affect the appearance of the fruit. Shellac coating is generally only used for short-term storage and preservation, or to extend the shelf life, the storage period is generally not more than 3 months. Waxing should be carried out within 3 days after harvesting.
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