Culture medium for culturing edible fungus production mother seeds

Abstract

The invention relates to a culture medium for culturing edible fungus production mother seeds. The culture medium comprises the following ingredients in percentage by weight: 20 percent of potato juice, 2 percent of glucose, 0.3 percent of monopotassium phosphate, 0.15 percent of magnesium sulfate, 1.4 percent of agar powder, 0.1 to 0.2 percent of fish meal wastewater concentrated liquid and the balance of water. The culture medium has the advantages that the fish meal wastewater concentrated liquid is used for replacing peptone to be added into an edible fungus production mother seed culture medium, the edible fungus production mother seed hypha grows unfurledly,is thick and pure white, the apparent form is good, the growth speed is accelerated by more than 10 percent, the production mother seed production period is shortened, after the edible fungus production stock seeds are inoculated, the hypha sprouting speed is high, the field planting is fast, and in addition, the yield of cultured fungi is not lower than that of mother seeds produced in cPDA (citrate potato dextrose agar) culture medium. Meanwhile, a novel path is also opened up for the fish meal wastewater usage.

Description

Technical field: [0001] The invention relates to a culture medium for artificially cultivating edible fungi. Background technique: [0002] Edible fungi are large fungi that can be eaten by humans, such as fungus, mushrooms, golden needles and shiitake mushrooms, etc. It is a food that combines nutrition and health care. In recent years, due to the advancement of science and technology, the production of edible fungi has also developed rapidly. In 2010, the total output of edible fungi in China reached more than 20 million tons, and the annual output exceeded 10 billion bags. At present, the production of edible fungi adopts the artificial cultivation method with small production and cultivation investment, short cycle and quick effect, that is, the test tube parent species is produced first, then the original species is produced, and then transplanted to the cultivation bag for reproductive growth. Among them, cPDA (enriched potato dextrose agar) medium is commonly used ...

AI Technical Summary

Problems solved by technology

There are certain defects in this culture medium: 1. When inoculating the production mother species, the germination speed of mycelium is slow, the colonization is slow, and the survival rate is low

2. Poor appearance, slow growth rate, weak hyphae

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