1166results about How to "Good antibacterial effect" patented technology

The invention relates to the technical field of antibacterial peptides, and particularly discloses a marine antibacterial peptide and application thereof, and the amino acid sequence of the marine antibacterial peptide is as shown in SEQ ID NO.1: MWKLPKWRNGRRRGFKIPRW. The marine antibacterial peptide CD109 provided by the invention has an inhibition effect on staphylococcus aureus, acinetobacter baumannii, pseudomonas aeruginosa and klebsiella pneumoniae, and has extremely low cytotoxicity.

The invention relates to bacillus velezensis SMB1 and application thereof in prevention and treatment of plant diseases, and belongs to the technical field of biological prevention and treatment of plant diseases. The strain is preserved in the China Center for Type Culture Collection on November 27, 2024, the preservation address is Luojia mountain, Luojia mountain, eight road, Wuchang District, Wuhan City, Hubei Province, and the preservation number is CCTCC NO: M20242647. The bacillus velezensis SMB1 provided by the invention has a remarkable bacteriostatic effect on plant pathogenic fungi, plant pathogenic oomycetes, plant pathogenic bacteria and animal pathogenic bacteria, has an extremely good broad-spectrum bacteriostatic function, has a great application potential in biological control of plant diseases, can reduce the use of chemical pesticides, and has a good application prospect. The pesticide residue in agricultural products is reduced, the environment is protected, and the urgent demand on pollution-free agricultural product production at present is met.

The invention relates to bacillus, a biocontrol inoculant prepared from the bacillus and application of the biocontrol inoculant, and belongs to the technical field of biological inoculants. The bacillus provided by the invention is bacillus subtilis and is named as ZZ1, the preservation unit is China General Microbiological Culture Collection Center, the preservation address is Institute of Microbiology, Chinese Academy of Sciences, No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing, the preservation center is numbered as CGMCC No.31374, and the preservation time is July 19, 2024. The bacillus ZZ1 disclosed by the invention has a certain bacteriostatic effect on different pathogenic bacteria regardless of living bacteria, supernate or cell lysis solution. The bacillus ZZ1 is high in living ability and wide in application range of nutrient sources, temperature, humidity and pH value. The compound has no pathogenicity to fruits and vegetables, has good tolerance to broad-spectrum bactericides, and has a great application prospect.

The invention relates to bacillus, a biocontrol inoculant prepared from the bacillus and application of the biocontrol inoculant, and belongs to the technical field of biological inoculants. The bacillus provided by the invention is bacillus subtilis and is named as QY2, the preservation unit is China General Microbiological Culture Collection Center, the preservation address is Institute of Microbiology, Chinese Academy of Sciences, No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing, the number of the preservation center is CGMCC No.31373, and the preservation time is July 19, 2024. The bacillus QY2 disclosed by the invention has a certain bacteriostatic effect on different pathogenic bacteria regardless of living bacteria, supernate or cell lysis solution. The bacillus QY2 is high in living ability and wide in application range of nutrient sources, temperature, humidity and pH value. The compound has no pathogenicity to fruits and vegetables, has good tolerance to broad-spectrum bactericides, and has a great application prospect.

The invention belongs to the technical field of antibacterial drugs, and discloses a coumarin thioether pleuromutilin derivative and application thereof.The coumarin thioether pleuromutilin derivative is a compound with the structure shown in the formula I and pharmaceutically acceptable salt of the compound, and in the formula, R1 and R2 are H, OMe, NO2, NH2, Me, F, Cl or Br. The antibacterial agent is novel in structure and has excellent antibacterial activity. In-vitro antibacterial experiment results show that all the compounds have antibacterial effects superior to that of tiamulin, most of the compounds have antibacterial effects equivalent to that of control valnemulin, and the compound has a significant effect on five gram-positive bacteria staphylococcus aureus drug-resistant strains ATCC 33591 and ATCC 43300, staphylococcus aureus sensitive strains ATCC 2913, staphylococcus epidermidis drug-resistant strains ATCC 51625, staphylococcus epidermidis sensitive strains ATCC 12228, staphylococcus aureus drug-resistant strains ATCC 51625, staphylococcus aureus sensitive strains ATCC 12228, staphylococcus aureus drug-resistant strains ATCC 51625 and staphylococcus aureus sensitive strains ATCC 12228. Wherein the bacteriostatic activities of the nine compounds are less than or equal to 0.062 mu g.mL <-1 >. The compound is expected to be applied to treatment of bacterial infection caused by staphylococcus aureus, and a new choice is provided for anti-infection drugs.

The invention discloses an antibacterial peptide SAMP4 or a derivative thereof, a pharmaceutical composition and application, and belongs to the technical field of biology, the amino acid sequence of the antibacterial peptide SAMP4 is as shown in SEQ ID NO: 1, and the antibacterial peptide SAMP4 has a broad-spectrum antibacterial effect and can be used for preparing antibacterial peptide SAMP4. The compound has a strong bacteriostatic effect on various gram-positive bacteria such as staphylococcus aureus, enterococcus and streptococcus and various gram-negative bacteria such as escherichia coli, acinetobacter baumannii and pseudomonas aeruginosa, and is strong in antibacterial activity, wide in antibacterial spectrum and low in toxicity. The invention also provides a derivative and a salt of the antibacterial peptide SAMP4 and application of the antibacterial peptide SAMP4 and the derivative and the salt of the antibacterial peptide SAMP4 to research, development and preparation of various antibacterial products or / and antibacterial drugs and treatment of bacterial infectious diseases, and the antibacterial peptide SAMP4 and the derivative and the salt of the antibacterial peptide SAMP4 are remarkable in advantages and wide in application prospect.

The invention relates to an antibacterial and anti-fouling ceramic product glaze and a preparation method, and belongs to the technical field of ceramic product glaze preparation, the ceramic product glaze comprises the following raw materials: a component A: a base material, a water glass solution, a sodium bicarbonate solution, a gadolinium nitrate solution, a europium nitrate solution, a silver nitrate solution and sodium cocoate; and the component B comprises the following components: dimethoxy methyl (3, 3, 3-trifluoropropyl) silicon, polysiloxane, dodecenyl succinic anhydride, gamma-methacryloxy propyl trimethoxy silane and white gasoline. Silver nitrate serves as a main material, europium nitrate serves as an auxiliary material, gadolinium nitrate excites the activity of silver and europium ions, and the silver nitrate, the europium nitrate and the gadolinium nitrate cooperate, so that the prepared ceramic product glaze has excellent antibacterial performance; sodium cocoate is added to form a steric hindrance effect, so that agglomeration among system particles is inhibited, and the antibacterial property of the glaze is enhanced; according to the anti-fouling glaze disclosed by the invention, the dimethoxymethyl (3, 3, 3-trifluoropropyl) silicon and the polysiloxane are added, so that the prepared glaze has a lasting anti-fouling effect.

The invention belongs to the technical field of medical dressings for repairing skin injury wounds, and provides a nanofiber wound dressing with a photo-thermal chemical synergistic antibacterial effect and a preparation method. A PVA / CS solution composed of polyvinyl alcohol PVA and chitosan CS is used as an electrospinning matrix, branched polyethyleneimine BPEI modified graphene oxide GO nanoparticles GO-BPEI are added to serve as a photo-thermal antibacterial component, lanthanum chloride is added to serve as a chemical antibacterial component, an electrostatic spinning solution is prepared, the electrostatic spinning solution is subjected to electrostatic spinning, and the PVA / CS / GO-BPEI / La nanofiber wound dressing is obtained. The obtained fiber surface has a good three-dimensional structure, shows obvious chemical antibacterial ability, can be subjected to photothermal conversion under near-infrared light illumination, can achieve the purpose of photothermal bacteriostasis, further improves the antibacterial property, and has good mechanical property, air permeability, water absorption and biocompatibility at the same time.

The invention discloses an antibacterial peptide and application thereof. The amino acid sequence of the antibacterial peptide disclosed by the invention is KKKEHRLLHRVLFHRL. The minimum inhibitory concentration of the antibacterial peptide to staphylococcus aureus is 4.5 mu g / mL, and the minimum bactericidal concentration of the antibacterial peptide to staphylococcus aureus is 72.7 mu g / mL. The antibacterial peptide disclosed by the invention has remarkable antibacterial activity on staphylococcus aureus and is expected to be widely applied as a novel bacteriostatic agent for preventing and treating staphylococcus aureus.

The invention belongs to the field of biological prevention and control of plant diseases, and particularly discloses a biocontrol bacterium bacillus velezensis and application thereof in preparation of a biocontrol inoculant for preventing and controlling pepper phytophthora blight, the strain is bacillus velezensis Y426-7, is preserved in China General Microbiological Culture Collection Center (CGMCC) on September 23, 2024, and has the preservation number of CGMCC NO.32041, and the preservation number is CGMCC NO.32041. The biocontrol bacterium is bacillus velezensis Y426-7. The bacillus velezensis is preserved in No. 3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and can be used for preparing a biocontrol inoculant for preventing and treating pepper phytophthora blight. Compared with the prior art, the bacillus velezensis Y426-7 obtained by the invention has an obvious antibacterial effect on phytophthora capsici and various crop phytophthora blight bacteria under an indoor in-vitro condition; furthermore, the 2.5 * 10 < 9 > CFU / g wettable powder prepared from the bacillus velezensis Y426-7 has a relatively good prevention and treatment effect and a certain yield increasing effect on the pepper phytophthora blight in the field.

The invention discloses a Pickering emulsion with cinnamyl aldehyde as an oil phase and a preparation method of the Pickering emulsion. The Pickering emulsion is prepared by the following steps: carrying out a cross-linking reaction on anions released by sodium tripolyphosphate and protonated cations of chitosan to prepare chitosan nanoparticles as a water phase, and then taking cinnamyl aldehyde as an oil phase. The Pickering emulsion delivery system disclosed by the invention can effectively release cinnamyl aldehyde, shows the remarkable antibacterial property of cinnamyl aldehyde on a wound surface, promotes wound surface healing, and shows good treatment potential.

The invention belongs to the technical field of grinding and polishing, and particularly relates to an aluminum nitride ceramic polishing process. The polishing process comprises the following steps that the aluminum nitride ceramic substrate is placed on a polishing pad, and polishing liquid is added for polishing; the polishing solution is prepared from the following components in parts by weight: 15-20 parts of a composite abrasive, 2-4 parts of an oxidant, 8-10 parts of a functional compound and 60-70 parts of water are mixed into a solution, and the pH value of the solution is adjusted to be 4-4.5 by using organic acid; the polishing solution provided by the invention has good suspension stability and antibacterial performance, the polishing solution is used for polishing the aluminum nitride ceramic substrate, the polishing rate is high, the polishing effect is good, and the aluminum nitride ceramic substrate which is small in surface roughness and free of scratches can be obtained.

The invention belongs to the technical field of microorganisms, and relates to lactobacillus plantarum SCWLac-1 and application thereof in aquaculture, in particular to application in the aspect of litopenaeus vannamei culture. The strain can be fermented on a large scale and can promote digestion and absorption of aquaculture animals so as to promote growth; in addition, the compound has a relatively strong inhibition effect on pathogenic bacteria, and the non-specific immune enzyme activity of the litopenaeus vannamei can also be improved; the microbial agent prepared from the strain and the aquaculture feed containing the strain are applied to aquaculture, diseases in aquaculture can be reduced, the use of antibiotics is indirectly reduced, the aquaculture environment is improved, and the economic benefits of farmers are further improved.

The present invention belongs to the field of biotechnology, and discloses an antimicrobial peptide and a preparation method and use thereof. The antimicrobial peptide of the present invention is a mixture of any one or more of the polypeptides of RcASScGAK, RcASScGAKS, TGMRcASScGAK, and TGMRcASScGAKS. The present invention also provides a method for preparing the antimicrobial peptide by heterologous co-expression of a whole enzyme and a substrate, as well as a purification process of the antimicrobial peptide, which can successfully obtain high-yield and high-purity antimicrobial peptides, the required reagents are low-priced, the operation steps are simple and easy, and it is suitable for large-scale cultivation and purification; the antimicrobial peptide prepared by the present invention has excellent antimicrobial activity, and provides a new choice for the development of antimicrobial and anti-infective drugs.

The invention belongs to the technical field of steel continuous casting, and particularly relates to a 300-series stainless steel thin strip and a continuous casting preparation method thereof. The stainless steel thin strip comprises the following components in percentage by mass: 0.01-0.05% of C; 0.30% to 0.60% of Si; 16.0% to 18.5% of Cr; 0.8 to 1.6 percent of Mn; 6.0 to 12.0 percent of Ni; 0.01 to 0.05 percent of N; 0.2%-3.5% of Cu; the steel comprises the following components in percentage by weight: less than or equal to 0.005% of S, less than or equal to 0.020% of P, less than or equal to 50ppm of B, less than or equal to 100ppm of Ce and the balance of The preparation method comprises the following steps: smelting, casting, hot rolling, water cooling, coiling to obtain a hot-rolled thin strip, and carrying out heat preservation and water quenching on the hot-rolled thin strip to obtain a finished product 300 series stainless steel thin strip. By adopting the optimized crystallization roller, the high-quality thin strip with the tensile strength of 900-1110 MPa, the yield strength of 670-780 MPa, the percentage elongation after fracture of 45%-65%, no cracks and wrinkles on the surface and the thickness of about 0.6 mm is obtained. The composition is reasonable in design, the preparation process is simple and controllable, and the obtained product is excellent in performance and convenient for industrial application.

The invention belongs to the technical field of organic compounds, and particularly relates to a multifunctional organic silicon glycosyl amide cationic surfactant as well as a preparation method and application thereof. The preparation method of the surfactant comprises the following steps: carrying out amine ester reaction on glucolactone and N, N-dimethyl dipropylene triamine to obtain a precursor; carrying out substitution reaction on the precursor and bromododecane to obtain an intermediate; the intermediate and 3-chloropropyl methyl dimethoxy silane or 3-chloropropyl methyl trimethoxy silane are subjected to a quaternization reaction, and the surfactant is obtained. The surfactant has good environmental protection property and biocompatibility, is non-toxic and non-irritant, can sterilize and improve the rewettability of the material surface, and has wide application prospects in the aspects of pesticide, textile, daily chemical industry and material transportation and storage.

The invention provides a nanoparticle compound for inhibiting bone and soft tissue infection as well as a preparation method and application thereof, and belongs to the technical field of medical biological materials. The nanoparticle compound is a gentiopicroside, sericin, hyaluronic acid and endolysin liposome nanoparticle, and a gentiopicroside, sericin, hyaluronic acid and endolysin co-delivery nano drug delivery system targeting the S100A4 site is designed based on the target S100A4 closely related to bone infection through Ai molecular docking and nano drug delivery technologies. The nanoparticle compound provided by the invention has better stability and bioavailability, and can be used for improving and relieving inflammatory response and increasing wound healing effect.

The invention discloses a nano composition with a deep acne removal effect and a preparation method and application thereof.The preparation method includes the steps that a straight-chain alkane structural unit (containing six or more carbon atoms) is adopted as an initiator to initiate a hydrophilic polymeric monomer to be subjected to a polymerization reaction, an amphiphilic polymer is prepared, acne removal active ingredients are entrapped, and the nano composition with the deep acne removal effect is obtained; the obtained nano composition has high encapsulation efficiency, and the encapsulation efficiency can reach 53.8% or above, and even can reach 80% or above. Meanwhile, the acne-removing nano composition has good percutaneous permeability and antibacterial effect and can be used for preparing acne-removing products, and the acne-removing effect of the acne-removing nano composition is remarkably superior to that of other acne-removing products.

The invention relates to the technical field of EVA (ethylene vinyl acetate), and discloses a drop-resistant antibacterial foaming insole as well as a preparation method and application thereof, the foaming insole is prepared from the following components in parts by weight: 100 parts of ethylene-vinyl acetate copolymer, 1-8 parts of hydroxyl-containing polyquaternium, 0.6-5 parts of hydroxyethyl acrylate grafted EVA, 0.8-7 parts of isocyanate-terminated polyurethane, 4-5.5 parts of foaming agent and 0.8-1.5 parts of assistant, 1.2 to 1.7 parts of a cross-linking agent; in the high-temperature mixing and mold pressing process, hydroxyl groups of the hydroxyl-containing polyquaternium and the hydroxyethyl acrylate grafted EVA react with isocyanate-terminated groups of the polyurethane, so that the hydroxyl-containing polyquaternium, the hydroxyethyl acrylate grafted EVA and the isocyanate-terminated groups of the polyurethane form a chemical cross-linked hybrid system, and the insole material shows higher tear strength, tensile strength and elongation at break; meanwhile, good hydrophilicity and antibacterial and mildew-proof performance are achieved.

The invention discloses lactobacillus fermentum with a hypoglycemic function and application of the lactobacillus fermentum. According to the invention, lactobacillus fermentum with high hypoglycemic ability is screened from Yunnan Baoshan freshly brewed yoghurt samples, the strain is preserved in China Center for Type Culture Collection, and the preservation number is CCTCC NO: M 20241504. In the fermentation process of the strain, alpha-glucosidase and alpha-amylase can be inhibited, and the inhibition rates are 43.91% and 59.44% respectively. The bacterial colony morphology of the lactobacillus fermentum E003 is milky white, semitransparent, relatively moist and smooth, the edge is neat, and obvious bulges are formed. When being used for preparing the anti-sugar fermented milk, the fermented milk can also inhibit alpha-glucosidase and alpha-amylase, and meanwhile, the fermented milk also has various characteristic nutritional ingredients; the lactobacillus fermentum E003 fermentation liquor also has relatively strong bacteriostatic ability, antioxidant activity and GABA high-yield ability.

The invention discloses a high-strength wood-plastic composite material and a preparation method thereof, and belongs to the technical field of wood-plastic composites.The high-strength wood-plastic composite material is prepared from, by mass, 50-80 parts of wood fiber powder, 20-50 parts of thermoplastic plastic, 2-6 parts of compatilizer, 0.5-1 part of lubricant, 0.3-0.6 part of antioxidant and 4-8 parts of reinforcing filler. Wherein the compatilizer is polystyrene grafted polyethyleneimine, and the reinforcing filler is nano inorganic filler. The interface bonding force between the wood fiber powder and the thermoplastic plastic in the system is increased by using the non-polarity of polystyrene and a large number of active groups in polyethyleneimine, and the compatibility of the wood fiber powder and the thermoplastic plastic is improved, so that the mechanical strength of the material is improved. And the nano inorganic filler is adopted for reinforcement, so that internal gaps of the material can be filled, defects are reduced, the mechanical strength of the material is further enhanced, and the loading capacity of the composite material is improved.

The invention relates to the technical field of polyester fiber modification, and particularly discloses a large polyester bio-fiber containing a lavender active component and a preparation method of the large polyester bio-fiber containing the lavender active component. Comprising the following raw materials in parts by weight: 100-300 parts of polyester chips, 5-10 parts of lavender active ingredients, 10-20 parts of modified mica sheets, 10-20 parts of a coupling agent and 1-3 parts of a dispersing agent, besides, the lavender leaves are subjected to enzymolysis through the compound enzyme, then the deep-eutectic solvent is adopted for extraction, and the two steps are combined, so that active ingredients in the lavender leaves can be fully extracted. The polyester fiber provided by the invention has excellent aging resistance and antibacterial performance, and has a wide market prospect.

The invention belongs to the technical field of microorganisms, and particularly relates to a preservative and bacteriostatic metabiotic composition for food as well as a preparation method and application of the preservative and bacteriostatic metabiotic composition. The raw materials of the postbiotic composition comprise inactivated thalli of compound probiotics and metabolites of the compound probiotics; the compound probiotics comprise lactobacillus casei Zhang, bifidobacterium animalis subsp. Lactis V9, lactobacillus plantarum P-8 and lactobacillus plantarum PB-2. Through mutual cooperation of the four strains, a culture substrate can be more effectively converted into a plurality of organic acids and short-chain fatty acids with more excellent preservative and antibacterial effects, and the preservative and antibacterial effects of the post-biogen composition are improved.

The invention relates to plant fermented oil for cosmetics and a preparation method of the plant fermented oil. The preparation method comprises the following steps: S1, fungus cultivation; s2, fungus selection: respectively taking single colonies of the cultured escherichia coli, staphylococcus aureus, lactobacillus lactis and streptococcus lactis; s3, bacteriostatic concentration selection: adding mixtures of cortex albiziae oil and schisandra chinensis oil with different concentrations, detecting the survival rate of the fungi, and recording the concentration with the lowest survival rate of the fungi; s4, performing fermentation; and S5, post-processing. On the basis of fermentation of conventional vegetable oil, a mixture of cortex albiziae oil and fructus schizandrae oil is added, so that the fermentation time of the plant fermentation oil is shortened to a certain extent compared with the traditional fermentation time, and the fermentation efficiency is greatly improved; moreover, the fermented oil can keep better antibacterial activity at a lower temperature, so that the phenomena of low activity and uncontrollable product of the fermented vegetable oil caused by high-temperature sterilization are avoided.

The invention belongs to the technical field of sponge products, and particularly relates to polyurethane sponge with a composite structure and a preparation method of the polyurethane sponge. Polyethylene glycol is used as a soft segment, isophorone diisocyanate is used as a hard segment, chitosan is added to serve as a raw material, polymerization and foaming are conducted, polyurethane foam is obtained, and in order to improve the antibacterial activity of the polyurethane foam, glycidyl trimethyl ammonium chloride is used for conducting quaternization modification on the chitosan, so that the antibacterial activity of the polyurethane foam is improved. Quaternary ammonium ions exist and can be adsorbed to the surfaces of thalli, the permeability of cell membranes is changed, the cell structure is destroyed, and therefore the antibacterial activity of the material is effectively improved, meanwhile, pearl powder is further added in the preparation process, the pearl powder is modified through citric acid and trisodium citrate, and the antibacterial activity of the material is improved. The problem of non-uniform dispersion caused by direct addition of the pearl powder is effectively solved.

The invention relates to the technical field of screening and application of probiotics, and particularly provides a novel bacillus coagulans strain and application of the novel bacillus coagulans strain. The bacillus coagulans is screened from naturally fermented soybean paste, has good biological safety, strong stress resistance to gastrointestinal tract environment, high yield of exopolysaccharide and protease, strong bacteriostasis and oxidation resistance, can efficiently degrade cholesterol, is beneficial to maintaining intestinal health, and can be widely applied to the fields of food, health care products and the like.

The invention relates to a sponge capable of increasing the negative ion release amount, which comprises a sponge base material and a negative ion generating material, and the negative ion generating material is obtained by attaching a negative ion generating coating to a sponge base material body, the negative ion generation coating comprises the following components in parts by mass: 200-400 parts of waterborne polyurethane, 19-29 parts of tourmaline composite powder, 4-12 parts of rare earth mineral powder and 20-36 parts of a hydrophobic finishing agent, the tourmaline composite powder comprises chitosan, modified titanium dioxide, tourmaline powder and activated carbon. The sponge has the effect of improving the negative ion release effect of the sponge.

The invention provides a cleaning agent with double effects of cleaning and sterilization for a scrubber and a preparation method of the cleaning agent. The cleaning agent comprises the following components in parts by weight: 5-10 parts of a solvent, 10-20 parts of a surfactant, 0.5-3 parts of a washing assistant, 0-1 part of a pH regulator, 1.5-3 parts of a bactericide, 0.3 part of essence, 0.01-0.1 part of an organic silicon emulsion and the balance of deionized water, wherein the total parts by weight of the components are 100. According to the invention, low-foam and foam-inhibiting components and long-acting antibacterial components are added, and the surfactant matched with the system and the addition amount of the surfactant are adjusted at the same time, so that while the cleaning and decontamination capabilities are ensured, the cleaning agent is endowed with strong bactericidal capability and long-acting antibacterial performance, the interior and exterior of the scrubber equipment are not damaged, and the occurrence of the situation that the equipment is mistakenly reported and halted is avoided.

The invention relates to the technical field of microbial control, and discloses a bacillus velezensis nano-material complex microbial inoculant as well as a preparation method and application thereof. The microbial inoculum is prepared by the following steps: preparing a bacterial suspension of bacillus velezensis; mixing sodium alginate with the bacterial suspension, adding nanocarbon, and stirring to obtain a mixed solution; and adding the mixed solution into a stirred calcium chloride solution, and reacting to obtain the bacillus velezensis microcapsule fungicide. The bacteriostasis rates of the fungicide for citrus brown spot, citrus colletotrichum gloeosporioides, citrus lipolytic macular blight, banana fusarium wilt and banana long leaf spot bacteria are all greater than 56%; the prevention and treatment effect on the Huanglongbing reaches 57.84%. After ultraviolet irradiation, the bacteriostatic ability of the microbial agent is reduced by only 4.32%, and the microbial agent can play a biological prevention and control role for a long time. The growth amount of citrus seedlings treated by the microbial inoculum can be increased by 220.39%, the number of newly grown leaves can be increased by 244.67%, and the microbial inoculum has a good plant growth promoting effect.

The invention discloses an ethylene chain-based ferrocenyl covalent organic polymer and application thereof, and belongs to the technical field of biological medicines. The covalent organic polymer based on the ethylene chain ferrocenyl is a covalent organic polymer which is obtained by taking 1, 1 '-ferrocenedicarboxaldehyde, bromoethane and 2, 4, 6-trimethyl-1, 3, 5-triazine as monomers through polymerization and has a completely conjugated structure. The method comprises the following steps: adding 1, 1 '-ferrocenedicarboxaldehyde, bromoethane and 2, 4, 6-trimethyl-1, 3, 5-triazine into a mixed solvent under a protective atmosphere, uniformly stirring, carrying out solvothermal reaction in a closed environment, and washing and drying a product obtained by filtering to obtain the covalent organic polymer based on ethylene chain ferrocenyl. The novel COP material ITAFc-COP with a completely conjugated structure is synthesized, the photo-thermal activity of the novel COP material ITAFc-COP is enhanced by the completely conjugated structure of ITAFc-COP, and the novel COP material has a photo-thermal effect and pod-like activity at the same time.