Preservation methods of Edible Fungi and Prevention and treatment of Edible Fungi Aging

The main contents are as follows: 1. To ensure the pure culture of bacteria, be careful not to use the strains contaminated by miscellaneous bacteria and not to connect them at close range.

2. Strictly control the passage times of bacteria, reduce mechanical damage and ensure the vitality of bacteria.

3. Appropriate cryopreservation of bacteria, low-temperature strains such as mushrooms, Lentinus edodes, 4 ℃ is conducive to the preservation of mycelium vitality, high-temperature strains such as straw mushroom at 16 ℃ is conducive to the preservation of mycelium vitality.

4. Avoid multiple passages in a single culture medium; strains should not be used for too long, over-aged strains will appear aging, and aging and degradation are organically linked, and weak strains are easy to degenerate.

5. The bacteria should be rejuvenated regularly under the conditions of suitable temperature, suitable pH, sufficient oxygen, no miscellaneous bacteria and so on.

6. Spore isolation is carried out every year, excellent strains are found by sexual reproduction, and tissue isolation is used to consolidate the genetic characteristics of excellent strains.