What are the storage and preservation methods for edible fungi? A detailed explanation

Edible fungi are a very popular food in China, and there are many varieties of edible fungi. Regardless of the type of edible fungi, we need to do a good job of storage. Storage can maintain the excellent strain characteristics of edible fungi and extend their useful life. Therefore, the storage and preservation of edible fungi is very important, so today the editor brings you storage and preservation methods for edible fungi. Below the editor will briefly introduce them, let's take a look together!

1. Low-temperature storage at the bottom of a well

Low-temperature storage at the bottom of a well is one of the most commonly used methods for storing edible fungi in China. For friends who have their own water wells, this is a method they can choose. First, we need to take the test-tube mother cultures of edible fungi to be stored, apply an appropriate amount of paraffin to sterile disinfected rubber stoppers, and seal them tightly. Then place them in sealed wide-mouth bottles or leak-proof plastic bags and tie them tightly. Then place them at the bottom of the well for storage. Under normal circumstances, they can be stored for 3-4 months.

2. Paraffin sealing storage

Paraffin sealing storage is also a commonly used method for storing edible fungi. First, we need to cut sterile wax paper into squares of about 7 cm, and then soak them in alcohol for about one minute. Then hold the mouth of the test tube culture to be stored above an alcohol lamp and rotate it for sterilization. Then take out the wax paper and tie the tube mouth tightly. Then place the tube mouth into melted paraffin and wrap it tightly with wax paper to avoid air leakage. After the paraffin cools, place it in the refrigerator for preservation.

3. Cellophane sealing storage

For cellophane sealing storage, first prepare a sealing agent by dissolving and mixing gelatin, copper sulfate, methylene blue and other items in hot water. Then remove the cotton plug from the test tube culture fully covered with mother culture, turn the tube mouth downward, and seal it with the sealing agent. Then soak the cellophane, attach it to the tube mouth, and seal it with paraffin. At room temperature, this storage method can last at least up to about 8 months, and can also prevent contamination by pathogens and pests.

4. Manure storage

Manure storage is very suitable for storing straw-rotting fungi such as button mushrooms. First, dry and crush decomposed cow dung and similar materials in the sun, then sieve them through a screen, add an appropriate amount of water to adjust the moisture, and place them into test tubes, keeping the depth at about half. Then carry out sterilization work, and inoculate after ensuring sterility. When the mycelium has fully grown, store it in an environment of about 3 degrees. Its storage time is very long, and its production traits will not show major changes.

The above is a brief introduction to storage and preservation methods for edible fungi. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!