Selenium-enriched edible fungi producing method and culture medium formula

Abstract

The invention relates to the field of biological engineering. The culture medium formula of selenium-enriched edible fungi comprises the following components in percentage by weight: 0.4 to 0.6 percent of bean straw chopper, 0.15 to 0.25 percent of leaf powder, 0.05 to 0.1 percent of magnesium sulfate, 0.2 to 0.4 percent of corn flour, 0.2 to 0.5 percent of selenium-enriched rice bran, and 0.1 to0.3 percent of ginkgo leaf powder. The selenium-enriched edible fungi producing method comprises the following steps: preparing a culture medium; regulating; sterilizing; inoculating and culturing; and accelerating mushrooms, wherein, during liquid strain culture, a sodium selenite component is added in a culture solution; and a strain is cultured in the culture solution for culturing the strain.The cultured selenium-enriched edible fungi have high content of selenium, can be used for effectively improving the selenium level in blood of a human body and improving the disease resistance of the human body, and have excellent disease treatment and body-building efficacies.

Description

technical field [0001] The present invention relates to the field of bioengineering, in particular to a production method and culture medium. Background technique [0002] Edible fungi are edible mushrooms; mushrooms refer to the general term for higher fungi that can form large fleshy (or gelatinous) fruiting bodies or sclerotia. At present, there are more than 120,000 species of fungi that have been described in the world, more than 6,000 species that can form large fruiting bodies or sclerotia, and more than 2,000 species that are edible. At present, there are only 40 to 50 species that can be artificially cultivated on a large scale. Edible fungi belong to the fungal phylum in terms of classification, most of them belong to the subdivision Basidiomycota (such as oyster mushrooms and shiitake mushrooms), and a few belong to the subphylum Ascomycota (such as Morchella). [0003] Selenium is an essential trace element for the human body, and it mainly exists in the form o...

AI Technical Summary

Problems solved by technology

[0004] In order to reduce the possibility of selenium deficiency, people will basically supplement selenium, and the existing method of supplementing selenium is generally to add inorganic selenium to table salt. The advantage is that the method is simple and the effect is good. The disadvantage is that inorganic salt cannot Storage, once the supplementation of selenium is stopped, the nutritional status of selenium in the human body may decline. In addition, it is difficult to distinguish whether the population is deficient in selenium. Normal intake of too much inorganic selenium is not good for health.

Therefore, nutritionists advocate supplementing organic selenium. There is an existing selenium-enriched additive. This additive is basically limited to be composed of selenium-containing inorganic compounds. Mushrooms, maitake mushrooms and other edible fungi are not very mature when cultivated, so we should vigorously develop the cultivation technology of selenium-containing edible fungi

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