Biological selenium product applied to organic selenium-rich agriculture and preparation method thereof

Abstract

The invention belongs to the biotechnology field, and relates to a biological selenium product applied to organic selenium-rich agriculture and a preparation method thereof. According to the method, by-products, such as molasses and bean pulp, from processing of agriculture products are taken as a fermentation substrate; an inorganic selenium compound is added into the fermentation substrate and is transformed into biological selenium though the fermentation by transformed selenium produced muscle candida efficient strains cultivated through induced mutation; the non-poisonous biological selenium product, which is easy to be absorbed by plants, is prepared by enzymolysis of selenium macromolecules. All the selenium derives from the process of biosynthesis and transformation. When the product is applied to the production of selenium-rich organic agricultural products, not only is the safety of the selenium-rich products guaranteed, but also the risk of environment pollution caused by utilizing the inorganic selenium compound in production is effectively avoided.

Description

Technical field [0001] The present invention belongs to the field of biotechnology and relates to agricultural products added with inorganic selenium The by-product is the substrate, through the selection of Candida utilis with high selenium conversion ability to ferment and transform inorganic selenium, and prepare biological selenium products that can be easily absorbed and utilized by plants through enzymatic hydrolysis and their production technology. Background technique [0002] Selenium is an essential trace element for humans and animals. Existing studies have shown that there are hundreds of diseases in humans and animals associated with insufficient selenium intake. The endemic disease, Keshan disease, which occurs in northern China, is caused by selenium deficiency. Food is the main source of human and animal intake of selenium. Because selenium is in the crust The degree of selenium is low and unevenly distributed, and regions with varying degrees of selenium defici...

AI Technical Summary

Problems solved by technology

However, the selenium sources used in selenium-enriched agricultural production without exception are inorganic selenium compounds, which makes consumers doubt the safety of selenium-enriched products, does not meet the requirements of modern organic agricultural production, and has the potential to pollute the environment. risk

So far, there is no non-inorganic compound selenium source product applied to selenium-enriched agricultural production.