Storage, Transportation and fresh-keeping Technology of Litchi

Litchi is a kind of fruit that everyone is familiar with. Litchi has high nutritional value, sweet taste and juicy sweet flesh, which is welcomed by many people. Therefore, the planting area of litchi is still very large. After litchi harvest, it needs to be transported to the market, and preservation work needs to be done well in the process of transportation. So Xiaobian brought you the storage and preservation method of litchi today. Let's take a look at it together!

1, normal temperature storage

Normal temperature storage and transportation is one of the most commonly used storage and transportation methods, mainly through preservatives to achieve the role of litchi preservation. After preservative treatment litchi, plastic film can be wrapped to keep moisture, to avoid litchi browning rot. For example, if the fruit is soaked with benzolite and ethyl phosphorus aluminum and then packaged with a system film, it can be stored at a temperature of about 30 degrees for about a week. The rotten fruit rate will not exceed 10%, which can ensure safe transportation to the destination and reduce losses.

2. Add ice to cool down and store

In fact, ice cooling storage and transportation is also a kind of storage and transportation at room temperature. First, the litchi is preserved and precooled, then the litchi is dried and packaged in polyethylene bags. Put it in a foam box, and add ice cubes to cool it in the foam box, and then sell it to the destination as soon as possible. About 5 days or so, litchi is still the same as just picked. However, it is easy to produce a large amount of carbon dioxide in the box, which is easy to cause litchi to taste bad. If the normal temperature storage and transportation is slightly mismanaged, then the loss is very large, so everyone should pay more attention.

3, low temperature storage

Low temperature storage and transportation is to control litchi pericarp browning to keep fresh, reduce the pathological rot of litchi fruit, and ensure the quality of fruit. Litchi low temperature storage temperature should be controlled at about 4 degrees, not too low, too low words easily lead to litchi by cold damage. For example, in a one-degree environment, around January, the pericarp begins to brown and taste. When storing and transporting at low temperature, we should pay attention to not changing temperature, and combine it with gas conditioning properly. However, most of them are still stored at low temperature spontaneously, that is, using suitable polyethylene film bags for packaging and storage.

4. Sulphur fumigation and acid treatment

Sulfur dioxide is one of the most widely used preservatives in many food processing industries, inhibiting polyphenol oxidase activity. Therefore, the method can be used for preventing litchi pericarp from browning and achieving the purpose of preservation. First burn an appropriate amount of sulfur powder and fumigate the litchi for about 20 minutes. Until litchi peel color faded red, gradually become bright yellow. It can also directly release high-pressure sulfur dioxide for fumigation. After sulfur fumigation, litchi should be stored at a low temperature of about 1 degree, and the storage time can be as long as 40-50 days.

The above is a simple introduction to the storage and preservation method of litchi. Today's introduction is here, this article is for reference only, I hope to help everyone oh!