Abstract: The disclosure relates to a Lactobacillus plantarum HG-23 and application thereof. The Lactobacillus plantarum HG-23 has been deposited with the China Center for Type Culture Collection as assigned Accession Number CCTCC No.: M2021330. The Lactobacillus plantarum HG-23 of the disclosure can be used for preparing hypolipidemic food or hypolipidemic drugs. The Lactobacillus plantarum HG-23 screened in the disclosure is good in safety, can tolerate gastric acid and bile salts, and survives and colonizes in intestinal tract to regulate and improve the intestinal microecological balance of a host, so as to play a beneficial effect and generate an exact healthy effect; in-vitro and animal tests show that the Lactobacillus plantarum HG-23 has a strong function of reducing triglyceride and cholesterol in blood.

Abstract: This invention belongs to the technical field of composite materials, and discloses a xylan-based dual network nanocomposite hydrogel, preparation method thereof and use therefor. The method comprises (1) adding graphite oxide powder into deionized water, ultrasonically dispersing to obtain a GO aqueous dispersion; (2) adding xylan into deionized water, heating and stirring to obtain a xylan solution; (3) adding a water-soluble calcium salt, a reaction monomer and the xylan solution into the GO aqueous dispersion, and stirring and dispersing uniformly under an ice-bath condition, then adding an initiator, a crosslinking agent and an accelerator, stirring and mixing uniformly to obtain a mixed solution; and 4) drying and reacting the mixed solution (in the step (3) to obtain a xylan-based dual network nanocomposite hydrogel.

Abstract: The present invention belongs to the technical field of composite materials, and disclosed are a xylan-based double network nanocomposite hydrogel and the preparation and application thereof. The method includes: (1) adding a graphite oxide powder into deionized water, and ultrasonically dispersing to obtain a GO water dispersion; (2) adding xylan into deionized water, heating and stiffing to obtain a xylan solution; (3) adding a water-soluble calcium salt, a reaction monomer and the xylan solution into the GO water dispersion, stiffing and dispersing uniformly under an ice-bath condition, adding an initiator, a cross-linking agent and an accelerator, and stiffing to mix well so as to obtain a mixed solution; (4) subjecting the mixed solution of step (3) to a drying reaction, to obtain the xylan based double network nanocomposite hydrogel. The composite hydrogel obtained in the present invention has high mechanical properties, is biodegradable and has good biocompatibility.