Selenium-rich microbial preparation prepared by fermentation of animal serum and preparation method of selenium-rich microbial preparation

Abstract

The invention relates to a selenium-rich microbial preparation prepared by fermentation of animal serum. The selenium-rich microbial preparation comprises the following raw materials in parts by weight: 8-15 parts of sodium selenite, 50-65 parts of animal blood hydrolysate, 5-15 parts of composite trace elements, 8-20 parts of potassium dihydrogen phosphate, 10-25 parts of urea, 8-20 parts of peptone, 4-10 parts of yeast powder, 8-20 parts of NaCl, 8-15 parts of NaOH, 4-10 parts of NaNO3, 10-25 parts of NaCl, 4-10 parts of NH4Cl, 8-20 parts of K2HPO4, 4-10 parts of beef extract, 10-25 parts of glucose, 10-25 parts of starch, 8-20 parts of calcium carbonate, 10-25 parts of amino acid, 2-6 parts of potassium nitrate, 2-6 parts of ferrous sulfate, 10-25 parts of magnesium sulfate, 25-40 parts of trisodium citrate, 10-25 parts of an biochemical enzyme and 800-848 parts of a mixed bacterial solution. According to the preparation method of the selenium-rich microbial preparation provided by the invention, the fermentation time is short, and the preservation period of the microbial agent can be prolonged to 2 years by increasing the proliferation speed of microbes in the fermentation process.

Description

technical field [0001] The invention relates to a selenium-enriched nutritional microbial fertilizer, in particular to a selenium-enriched microbial preparation prepared by fermenting animal serum and a preparation method, belonging to the technical field of biological fertilizers. Background technique [0002] my country is a big selenium-deficient country. The census proves that more than 70% of the soil in our country is seriously deficient in selenium, and the selenium content in more than 95% of the grain and livestock and poultry meat in our country is less than 50 μg / kg, which belongs to a large selenium-deficient country. The per capita selenium intake in my country is only about 39 μg per day, which is less than 80% of the minimum adult requirement of 50 μg / day for success, and is far from the healthy requirement of 100-200 μg / day; it is farther away from the safe upper limit of 800 μg. In my country, except for a few areas, 90% of the population needs to use bioen...

AI Technical Summary

Problems solved by technology

But selenium exists in the form of inorganic selenium salt in this selenium-enriched preparation, and the biological activity of inorganic selenium salt is low, does not have antioxidation, and human body is very little to the absorption rate of inorganic selenium salt, and excessive consumption has certain toxicity to human body, has increased the harm to human body. Hazardous

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