Method for prolonging storage time of edible fungus solid spawn

Abstract

The invention relates to a method for prolonging storage time of edible fungus solid spawn. A solid culturing medium is prepared from, 20-25 g/L of trehalose, 2-6 g/L of yeast powder, 1-2 g/L of peptone, 1-2 g/L of monopotassium phosphate, 1.5-2 g/L of magnesium sulfate, 15-20 g/L of agar, 0.01-1.5 g/L of oxidized graphene, 0.1-0.85 g/L of N-butylpyridine hexafluorophosphate, 0.1-0.5 g/L of sodiumcarboxymethylcellulose, 0.2-0.8 g/L of polyacrylamide, 1.3-9.5 g/L of nano calcium carbonate, 0.2-0.8 g/L of laurinol sodium sulfonate, and the balance purified water. The pH value of the culturing medium is adjusted to 5-6. The method can prolong the storage time of the edible fungus solid spawn, hydroxyl groups and epoxy groups are randomly distributed on an oxidized graphene single sheet, in awater environment, partial hydroxyl groups and partial epoxy groups chemically react with hydroxymethyl cellulose, polyacrylamide and the nano calcium carbonate to form a compound even a polymer so as to reduce the activity of the culturing medium, and edible fungus can survive in a lower activity environment to prolong the storage time.

Description

technical field [0001] The invention relates to the technical field of edible fungus solid strain storage, in particular to a method capable of prolonging the storage time of edible fungus solid strain. Background technique [0002] China has a long history of cultivating edible fungi with a wide variety. The common ones are: shiitake mushrooms, straw mushrooms, mushrooms, fungus, white fungus, Hericium erinaceus, russula, boletus, etc. Edible fungi are delicious, nutritious, and rich in amino acids , can reduce cholesterol and high blood pressure symptoms, and the latest medical research shows that it also has anti-cancer effects, so the development of edible fungus breeding industry is a relatively promising industry. [0003] The current cultivation of edible fungi is generally difficult in prolonging the storage time of the strains, and the adaptability is general. For example, Chinese patent 2010102918274 discloses a preparation method of edible fungus culture medium, w...

AI Technical Summary

Problems solved by technology

[0003] The current cultivation of edible fungi is generally difficult in prolonging the storage time of the strains, and the adaptability is general. For example, Chinese patent 2010102918274 discloses a preparation method of edible fungus culture medium, which mainly uses crop straw and fresh potato dregs as raw materials. It solves the problem of reusing straw and fresh potato dregs, and provides high-quality edible fungus culture medium, but the storage time is extremely short, and it needs to be stored in a specific environment

[0004] According to the above technical scheme, the disadvantages of the current edible fungus solid strains in storage are: they need to be refrigerated at 4-10°C, and they need to be renewed once within 1-2 months. They are not easy to preserve, the storage time is short, and they are prone to mutation.

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