Selenium-rich yeast, preparing method and application

Abstract

The invention discloses a selenium-rich yeast, a preparing method and an application. The preparing method includes the following steps that Candida ethanolica is subjected to nitrogen ion-implantation mutagenesis, and is subjected to mutation screening for multiple times, and an Candida ethanolica mutant strain tolerating high-concentration sodium selenite is obtained; a seed culturing solution is prepared, the seed culturing solution is inoculated in a fermentation medium and fermented to the logarithmic phase, the sodium selenite is additionally added into a fermented product, the mixture continues to be fermented and cultured, and a fermented product is collected; fermented liquid is subjected to centrifugal washing and dried, and then a faint-yellow powdery product is obtained. The selenium-rich yeast has a large amount of amino acid and small peptide, and is extremely and easily digested and absorbed by animals, organic selenium in the yeast can be fully absorbed by living bodies along with absorption of the amino acid and the small peptide, and the digestion using rate of the organic selenium is greatly increased. Under the condition of the equivalent additive amount, the selenium-rich yeast has the advantage of being obvious in production performance aspect compared with similar products, or under the condition of the equivalent production performance, the additive amount can be reduced, and the cost is reduced.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for higher amounts of enzymes produced from rice that have been genetically modified into better ways than previously possible due to its unique characteristics such as being highly effective at converting nitrogen fertilizers into useful compounds like methyl mercaptans (CH3SH) without losing any nutrients during processing steps downstream. Additionally, this process produces an abundance of certain types of proteins called selenomyitrinos containing very low levels of cysteines compared to traditional methods where crops were grown on their own flour instead of grain. These beneficial properties make these materials valuable sources of natural resources while reducing costs associated with producing them separately.

Problems solved by technology

This patents discusses how different types of plants have been identified by genetic analysis that help predict potential uses related metals like selenium. However, current ways involve extracting pure elemental selenium from these sources, making them difficult to be applied directly due to their low concentration compared to what they could potentially provide. To address this problem, new techniques involving converting specific forms of selenium called methylselenoferric acid ("MSA") -a type of vitamin found naturally in foodstuffs –to create stable compounds containing both selenium and hydrogen atoms, known as bioselenium, were proposed earlier but still lacked in practicality because previous attempts at producing MSAs did not result in any significant improvement over existing processes.