Preparation method of selenium-rich amino acid nutrient solution

Abstract

The invention discloses a preparation method of a selenium-rich amino acid nutrient solution, comprising the following steps: step 1, cleaning and baking waste chicken and duck feathers; step 2, diluting concentrated sulfuric acid with water in ratio of 0.8:10 to obtain dilute sulfuric acid; step 3, adding the dilute sulfuric acid to a strong acid-proof stainless steel jar, then adding the baked waste chicken and duck feathers, heating to 100-110DEG C for carrying out chelating reaction, and after reaction, adding a pH regulator to regulate the pH value of the reaction liquid to be neutral to obtain an amino acid nutrient solution; and step 4, adding CM strains and brown sugar to the amino acid nutrient solution, sealing and fermenting to obtain the selenium-rich amino acid nutrient solution. The selenium-rich amino acid nutrient solution disclosed by the invention integrates three effects of an amino acid protein feed raw material, a biological-source organic selenium source and a micro-ecological formulation, has the advantages of rich contents of amino acid, protein and selenium, comprehensive nutrition, safety and nontoxicity, and opens up a new way for a green and environment-friendly raw material of feed.

Description

technical field [0001] The invention relates to a nutrient solution, and relates to a preparation method of a selenium-enriched amino acid nutrient solution. Background technique [0002] Selenium is one of the trace elements necessary for the healthy growth of humans and animals. After being absorbed by animals, all tissues and cells in the body contain selenium, and the general content is 20-50 μg / kg body weight. Among them, kidney, liver, and fur have the highest content, followed by muscle, bone, and blood, and fat content is the lowest. An appropriate amount of selenium has many physiological functions - improving the body's immunity, regulating growth and improving production performance, anti-cancer, anti-oxidation, anti-stress, delaying aging and antagonizing certain poisons or toxic elements. [0003] The currently widely used selenium supplement method is to add sodium selenite. In recent years, with the in-depth research on selenium, it has been found that sodiu...

AI Technical Summary

Problems solved by technology

In recent years, with the in-depth research on selenium, it has been found that sodium selenite has peroxidative properties, and its toxicity is high and its bioavailability is low. adverse effects

At present, there is no report of extracting active organic selenoprotein from feathers and adding CM bacteria agent to prepare amino acid nutrient solution