Abstract: In a method for extracting microbial DNA from milk, the extracted DNA can be directly used for PCR amplification. The method includes the following steps: treating milk with TE solution, fully disrupting microbial cells by bead milling, immobilizing proteins in the middle layer between the aqueous and organic phases with high-vacuum silicone grease so as to prevent impurities in the middle layer from entering the aqueous phase, etc. The extracted DNA has a high degree of intactness, high concentration and purity.

Abstract: In a method for enriching and separating an anaerobic fiber-degrading bacterium on the basis of cellulosic magnetic nanoparticles, the cellulosic magnetic nanoparticles are prepared by coating cellulose on the surface of a magnetic nanomaterial. Bacteria attach to the cellulosic magnetic nanoparticles. Anaerobic fiber-degrading bacteria degrade the cellulose and then detach from the cellulosic magnetic nanoparticles, and the anaerobic fiber-degrading bacteria are obtained by means of separation using a magnet. The magnetic nano-separation technology can be used as a new technology to efficiently separate anaerobic fiber-degrading bacteria.

Abstract: In a method for extracting microbial DNA from milk, the extracted DNA can be directly used for PCR amplification. The method includes the following steps: treating milk with TE solution, fully disrupting microbial cells by bead milling, immobilizing proteins in the middle layer between the aqueous and organic phases with high-vacuum silicone grease so as to prevent impurities in the middle layer from entering the aqueous phase, etc. The extracted DNA has a high degree of intactness, high concentration and purity.

Abstract: In a method for enriching and separating an anaerobic fiber-degrading bacterium on the basis of cellulosic magnetic nanoparticles, the cellulosic magnetic nanoparticles are prepared by coating cellulose on the surface of a magnetic nanomaterial. Bacteria attach to the cellulosic magnetic nanoparticles. Anaerobic fiber-degrading bacteria degrade the cellulose and then detach from the cellulosic magnetic nanoparticles, and the anaerobic fiber-degrading bacteria are obtained by means of separation using a magnet. The magnetic nano-separation technology can be used as a new technology to efficiently separate anaerobic fiber-degrading bacteria.

Abstract: The present disclosure provides a method for reducing zearalenone content in straw using steam explosion technology and use thereof, creatively utilizes the huge energy released during steam explosion, and destroys the chemical structure of zearalenone without introducing other harmful chemicals, wherein the steam explosion technology can be used as a completely new technology for reducing zearalenone content in straw.

Abstract: The invention relates to a realization method for computer-aided screening of target aptamers and small molecule compounds, which is realized by adopting a molecular docking technology-based reverse virtual screening algorithm and comprises the steps of generating random unrepeated sequences with an appointed length of n based on a sequence length input by a user; modeling a double-stranded DNA structure for each sequence in the random unrepeated sequences and generating a corresponding double-stranded DNA three-dimensional structure file; carrying out format transformation for each generated double-stranded DNA three-dimensional structure file to be used for molecular docking; carrying out format transformation for target small molecules to enable the processed target small molecules to be used for the molecular docking; carrying out molecular docking for each target small molecule and each aptamer; and reading the score files after the molecular docking by two matrix generation functions, and respectively g