4 results about "Streptococcus hemolyticus" patented technology

The present invention provides a Lactiplantibacillus plantarum strain capable of resisting Streptococcus pneumoniae infection in the respiratory tract, with a deposit number of CCTCC NO: M2022359. The Lactiplantibacillus plantarum VHProbi P06 strain provided by the present invention has a strong adhesion effect on nasal epithelial cells and can colonize in the nasal cavity; and can significantly inhibit the adhesion effect of Streptococcus pneumoniae, the main pathogenic microorganism of sinusitis, on nasal epithelial cells; it also has an inhibitory effect on the growth of most other pathogenic microorganisms of sinusitis, including β-hemolytic streptococcus, Streptococcus pyogenes, Escherichia coli, Staphylococcus aureus, etc. The Lactiplantibacillus plantarum VHProbi P06 strain provided by the present invention has no toxic effect on the body and has good safety. It can be added to drugs for preventing respiratory diseases or improving respiratory symptoms caused by bacterial infections, and has broad application prospects.

The invention discloses bacillus licheniformis YL-001 with anti-inflammatory and antibacterial effects and application of the bacillus licheniformis YL-001, and belongs to the technical field of biology, and the bacillus licheniformis YL-001 is separated from soil. The preservation number of the bacillus licheniformis strain is GDMCC (China General Microbiological Culture Collection Center) No.66556. A metabolite of the bacillus licheniformis YL-001 provided by the invention has obvious capabilities of inhibiting secretion of inflammatory factors and inhibiting growth of streptococcus pneumoniae and beta hemolytic streptococcus, and can improve the total antioxidant capacity of serum, and the strain is good in biocompatibility, high in safety and suitable for industrial production. The method has important significance for developing anti-inflammatory or bacteriostatic medicines, health care products and foods, and is particularly suitable for preparing products with the sore-throat relieving effect.

This invention belongs to the field of functional probiotic screening and application technology, specifically involving a novel strain of *Lactobacillus plantarum* (…). Lactiplantibacillus plantarum The *Lactobacillus plantarum* strain was deposited on January 15, 2026, at the China Center for Type Culture Collection (CCTCC), Wuhan University, Wuhan, China, with accession number CCTCC NO: M202026133. This strain exhibits strong antioxidant capacity, significant inhibitory and flocculating effects against hemolytic streptococci, and can significantly reduce the levels of pro-inflammatory cytokines IL-6 and IL-1β induced by hemolytic streptococci while increasing the level of the anti-inflammatory cytokine IL-22. It has no toxic effects on the body, good safety profile, and can be used to prevent colonic polyps and colon cancer caused by hemolytic streptococci, showing broad application prospects.

The invention provides an intelligent dressing for dynamically monitoring wound infection and a preparation method of the intelligent dressing. The intelligent dressing sequentially comprises a contact layer, a hydrophilic layer, a color developing layer and a fixing layer from inside to outside. PP / PLA bi-component non-woven fabric is adopted as the contact layer and is coated with a chitosan coating after plasma treatment, and calcium alginate / CMC composite hydrogel is adopted as the hydrophilic layer; the color developing layer comprises a region A and a region B; the A region is used for detecting staphylococcus aureus, and the B region is used for detecting hemolytic streptococcus. The intelligent dressing provided by the invention is used for nursing the wound surface, and can quickly and accurately detect whether the wound surface is infected with staphylococcus aureus and hemolytic streptococcus, so that the potential infection risk can be found in time, and anti-infection treatment can be adopted in time. The preparation method has the advantages of low cost, good biocompatibility and the like.