Method for culturing selenium-enriched Cordyceps militaris

Abstract

The invention discloses a method for culturing selenium-enriched Cordyceps militaris, which is to increase the selenium content in a culture medium to 50mg / L by using organic selenium yeasts instead of inorganic seleninic acid and sodium selenite, which infect the growth of hyphae, so as to ensure the selenium content in the cultured selenium-enriched Cordyceps militaris reaches 35 to 50mg / L. In the invention, the organic selenium yeasts which exert the lest inhibition effect on the growth of the Cordyceps militaris are adopted to increase the selenium content in the culture medium to 50mg / l, the selenium content in the cultured selenium-enriched Cordyceps militaris reaches 35 to 50mg / kg, which is 2 times higher than that of the Cordyceps militaris cultured in a culture medium added with inorganic selenium, and the yield of Cordyceps militaris is high.

Description

technical field [0001] The invention belongs to a method for cultivating selenium-rich Cordyceps militaris. Background technique [0002] Selenium is one of the essential trace elements for the human body. It has various pharmacological effects such as anti-cancer, anti-cancer, anti-oxidation, protecting the body from damage by active oxygen free radicals, protecting the heart, resisting liver necrosis, improving immunity, and delaying aging. , Known as the "King of Anticancer". Modern medical research shows that various human diseases such as cancer, cardiovascular and cerebrovascular diseases, diabetes, and high blood pressure are all related to selenium deficiency. [0003] The distribution of selenium in the natural environment is extremely uneven. Two-thirds of my country is in a state of selenium deficiency. In order to improve human health, many scientific research institutions and bioengineering companies convert inorganic selenium into organic selenium through micr...

AI Technical Summary

Problems solved by technology

Prior art all is to add inorganic selenous acid or sodium selenite in culture medium, and trace selenous acid or sodium selenite can promote the growth of Cordyceps militaris mycelium, but when inorganic selenium reaches in culture medium Mycelia growth is inhibited at 20mg / L, and mycelia cannot grow more than 30mg / L, thus limiting the amount of inorganic selenium added to the medium, so that the selenium content of cultivated Cordyceps militaris is generally within 10-20mg / L, Failed to fully reflect the role of selenium-enriched Cordyceps militaris in cancer prevention, anti-cancer, immunity enhancement, anti-aging, prevention and treatment of Keshan disease, diabetes, etc.