The invention discloses a
plant extract-containing composite antibacterial external spray for pets and a preparation method of the
plant extract-containing composite antibacterial external spray, and belongs to the technical field of pet
nursing materials. The external spray comprises the following components in percentage by
mass: 0.5-1.0% of a cortex dictamni extract, 0.75-1.5% of a tomato fruit extract, 0.75-1.5% of a folium artemisiae argyi extract and 5-8% of
anthemis nobilis hydrolat, and can also be matched with auxiliary components such as an emulsifier and a
preservative. The cortex dictamni extract is prepared by combining a supercritical CO2 extraction method with a specific compound entrainer, and active ingredients are fully reserved; the spray is prepared through step-by-step preparation of a water phase and an
oil phase and then high-shear emulsification, and the stability is good. The product shows a high bacteriostatic effect on
staphylococcus aureus,
salmonella and
candida albicans, can significantly reduce the content of an
inflammatory mediator NO and a proinflammatory factor IL-1beta, has bacteriostatic, bactericidal and anti-inflammatory effects, is suitable for preparation of pet
skin care related products, and has a wide application prospect.