Preparation method and application of biological nano-selenium feed

• Main Authors: DENG CHUNFANG, XIAO SHUBING
• Format: Patent
• Language: Chinese; English
• Published: 14.04.2023
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; FODDER; FOODS OR FOODSTUFFS; HUMAN NECESSITIES; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; PROCESSES USING MICROORGANISMS; SPIRITS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; VINEGAR; WINE

The invention discloses a preparation method and application of biological nano-selenium feed, and relates to the technical field of feed and breeding, and the preparation method comprises the following steps: step 1, adding 2.0 mmol/L sodium selenite into a culture medium to enable the initial pH value to be 7.0; 2, culturing for 8 days according to the inoculation amount of 15% of bacillus strains; and step 3, carrying out centrifugal separation to obtain nano-selenium, so as to obtain simple substance nano-selenium formed by reducing the bacillus from a highly toxic substance sodium selenite. According to the invention, the biological nano-selenium is provided to replace selenide such as sodium selenite with high toxicity and low biological activity as a new selenium additive used by most feeds, so that the situation that the toxic selenide such as sodium selenite settled in animal bodies is influenced by the intake time of people who intake selenium through a food chain is avoided. 本发明公开了一种生物纳米硒饲料制备方法及其应用