Method for preparing liquid mycelium fermentation culture medium formula of selenium-rich cordyceps militaris
A technology for mycelium fermentation and culture medium formulation, which is applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of mycelium toxicity, difficulty in mycelium absorption, etc., and achieves less bacterial contamination and reduced nitrogen source costs. , Reasonable effect of nitrogen source components
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[0021] Crush the cocoon clothes and cocoon shells of the dried natural colored cocoons into pieces of 1-3mm in size, then measure distilled water 30 times the mass of the raw materials, add Na 2 CO 3 Formulated with a concentration of 0.3% Na 2 CO 3 solution, immerse cocoon clothing and cocoon shell raw material fragments in the solution, boil at normal pressure and maintain for 40 minutes, stop heating, and cool the solution to normal temperature. After adjusting the pH value of the sericin solution to neutral with dilute hydrochloric acid, gradually add 15% Ca (OH) 2 solution until a sericin precipitate appears. Precipitate and separate the sericin protein and place it in a - 20 ℃ refrigerator, and vacuum-dry it directly after freezing to obtain the dried sericin protein, crush it to 200 mesh, and obtain the colored cocoon sericin rich in flavonoids and carotene protein.
[0022] Commercially available selenium-enriched yeast with a selenium content of 2000 mg / ...
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