Winter storage of bananas to prevent freezing damage

Bananas are South Asian tropical fruits. In the process of harvesting, storage and transportation in severe winter, if the temperature is below 13°C (the critical temperature of banana is 13°C), the banana fruit will be easily frostbite; if it is lower than 5°C and there is no heat preservation facility, only half of the banana will suffer freezing injury. The skin becomes black gradually, and the flesh hardens. It takes a little longer time for the starch to be converted into sugar, unable to ripen and lose its value. Therefore, the storage and transportation of bananas in winter should pay special attention to antifreeze. First, harvesting and antiseptic treatment Each year from December to February is the lowest temperature season. The normal temperature (daytime) of the main banana producing areas in western Guangdong, southeast Guangxi, southern Anhui and other regions is above 15°C. When harvesting bananas, it is necessary to choose when the temperature is high at noon during the sunny day, and take light and put them gently. Take the shaft and transport it back to the warehouse. Use a half-moon-shaped special knife to comb off. Then, remove pests and fruits, mechanical wounds, overripe or other foreign nuts, divide them by grades, and then trim the fruit stems. After that, rinse immediately with 0.1% to 0.2% of alum water prepared in advance, then add 800-1000 times of Tecdo or 800-fold soak for 2 minutes. (Also can use layered spray method) Allow the banana surface to dry before packaging. Second, packaging methods Packed in bamboo or cardboard boxes, all require strong and pressure-resistant packaging, and have been disinfected and sterilized by drugs five days before use. Each cartons is suitable for loading 10 kg of fruit (20 kg of bamboo shoots). Carton Packaging: Blue bagging is used as inner bag, and bananas are put into stacks one by one. Each box is weighed in 10 kg (8 kg after ripening), and then ethylene absorbent is added, sealed and secured with film. Bamboo and bamboo packing: The bottom of the bowl is covered with 3 layers of straw paper, and then two layers of straw paper are used to wrap around. Use 50 grams of the above writing paper from the bottom to 13 layers around the cushion. (For the East 3 provinces and the northwest area. Ship to North China. It is reduced to 8 floors; it is transported to the 6th floor in East China and Central China. It is thick and layered into bananas (the banana handle is inward). After filling, cover the banana with the same thickness of paper and cover it with a film, and wrap it well (such as transporting areas with extremely low temperatures in the northeast, etc., adding appropriate amount of ethephon when bananas are rinsed, making bananas slow in transit. Slow ripening). Third, the train transportation warm with ordinary box car (covered) transport, such as the carriage without insulation facilities, bananas on the way vulnerable to frost damage, so the bottom of the carriage should use 50 cm thick straw pad, then add two layers of cotton tires, a layer of cotton felt. On the four sides of the carriage, there are 3 layers of woven straw nails, 2 layers of batting, and 1 layer of cotton felt. After screwing them in turn, pack the packed bananas, and each compartment should be loaded with 1000 笠 (carton 1400 boxes). Then, cover the surface with the same thickness of warm material and close the passenger compartment window. After arriving at the destination, they should be brought into the warm store immediately with insulated cars. (Guangdong Science and Technology Association Zhuangao)

Makeup Machines

Makeup Machines,Tattoo Permanent Machines,Permanent Makeup Machines

Novelty Hardware Manufacturer , http://www.ywtattooneedles.com