Culture medium for producing selenium-enriched pleurotus eryngii

Abstract

A culture medium used for producing Se-enriched pleurotus eryngii is prepared by mixing cotton seed coats, bran coats, corn cobs, Astragalus roots and / or leftovers of Ganodorma lucidum, pulverized lime, gypsum powder and corn flour through sterilization. By adopting the culture medium for the Se-enriched pleurotus eryngii, the produced Se-enriched pleurotus eryngii has a Se content which is increased to 0.368 percent from 0.023 percent of the common culture media, namely, improved by 16 times, simultaneously, the organic Se occupies 99.5 percent of the full Se. The raw materials of the culture medium have wide sources and low cost, the produced leurotus eryngii with high nutritive value and large market demand.

Description

technical field [0001] The invention relates to a cultivation technology of Pleurotus eryngii, in particular to a culture medium for producing selenium-enriched Pleurotus eryngii. Background technique [0002] Selenium is an essential trace element for the human body. Studies have found that blood selenium levels are closely related to the occurrence of cancer. The level of selenium content in food and soil in an area has a direct relationship with the incidence of cancer. If the selenium content is high, the incidence and mortality of cancer will be low. On the contrary, the incidence and mortality of cancer will be high. Selenium is a component of glutathione peroxidase, an enzyme that catalyzes the redox reaction of glutathione with peroxides. Selenium can also prevent the oxidative damage of islet β cells, make them function normally, promote sugar metabolism, lower blood sugar and urine sugar, and improve the symptoms of diabetic patients. Therefore, selenium has the e...

AI Technical Summary

Problems solved by technology

The current 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 better. The disadvantage is that inorganic salts cannot be stored in the body. Once the supplementation of selenium is stopped, the nutritional status of selenium in the human body will decline. Another The problem is that it is difficult to distinguish whether the population is deficient in selenium, and excessive intake of inorganic selenium for normal people is not good for health

[0004] Patents CN1213488A and CN101003440A both disclose a "selenium-enriched shiitake mushroom additive". After using this additive, the selenium content in shiitake mushrooms is greatly improved, but the limitation of this additive is that it is composed of selenium-containing inorganic compounds. And it can only be used for the cultivation of shiitake mushrooms