46 results about "Inhibition zone" patented technology

The invention relates to a method for screening a high-yield exoprotein or polypeptide strain based on an antibacterial peptide. The method comprises the following steps: obtaining an eukaryotic expression strain of an exoprotein or polypeptide expression module integrated with an antibacterial peptide label; co-culturing the eukaryotic expression strain and antibacterial peptide sensitive bacteria on a solid plate, and observing the size of an inhibition zone of the exoprotein or polypeptide marked by the secreted antibacterial peptide in the growth process of the eukaryotic expression strain for inhibiting the growth of the antibacterial peptide sensitive bacteria; and screening according to the size of the inhibition zone to obtain the strain with high yield of the exosome protein or polypeptide. According to the method, the eukaryotic expression strain of high-performance protein or polypeptide exosome is visually displayed through the size of the inhibition zone, and the method has universality, can be suitable for detection of any protein, and is low in cost and easy in raw material obtaining.

The invention discloses a high-adhesion plant lactobacillus DACN962 strain and an application of the high-adhesion plant lactobacillus DACN962 strain in inhibition of helicobacter pylori. The plant lactobacillus DACN962 provided by the invention has a remarkable effect in prevention of helicobacter pylori colonization, and the DACN962 can compete for inhibiting the helicobacter pylori from being adhered to GES-1 cells in vitro and can be up to 53.55 + / -1.54%; in-vitro exclusion inhibition of helicobacter pylori adhesion to GES-1 cells can reach up to 82.98 + / -2.37%; the diameter of the inhibition zone of the freeze-dried supernatant of the plant lactobacillus DACN962 can reach 22.69 + / -0.76 mm, and the diameter of the inhibition zone of the fermentation liquor (containing thalli) can reach 15.33 + / -0.82 mm. The DACN962 is good in safety, has high adhesiveness, can compete / exclude and inhibit adhesion of helicobacter pylori, has helicobacter pylori resistance, is sensitive to various antibiotics, and is safe and harmless to a human body.

The invention belongs to the technical field of microorganisms, and particularly discloses lactobacillus plantarum CX1-3-2 capable of producing gamma-aminobutyric acid and improving sleep and application of the lactobacillus plantarum CX1-3-2. The preservation number of the lactobacillus plantarum CX1-3-2 strain is CGMCC (China General Microbiological Culture Collection Center) No. 34340. The lactobacillus plantarum CX1-3-2 can achieve the effect of improving sleep by improving the levels of GABA and 5-HT in brain tissues and reducing the levels of glutamic acid Glu, dopamine DA and noradrenaline NE; the scavenging rate of DPPH free radicals of the strain reaches 96.4%, the scavenging rate of ABTS free radicals of the strain reaches 78.3%, and the strain has an excellent anti-oxidation effect; the diameters of inhibition zones of the strain on staphylococcus aureus, bacillus cereus, escherichia coli and pseudomonas fluorescens are all larger than 17 mm, and the strain has an excellent antibacterial effect.

The invention discloses a plant lactobacillus and application thereof, and belongs to the technical field of microorganisms. The plant lactobacillus 002P provided by the invention is a new strain, and is round, white, neat in edge, smooth in surface and soft in texture on an MRS solid culture medium; growth of bacteria can be remarkably inhibited, an inhibition effect on staphylococcus aureus, pseudomonas aeruginosa and escherichia coli is achieved, and the inhibition zone is 23.33-279.33 mm; the healing of infected wounds can be obviously promoted; the selenium conversion rate is excellent, and the maximum selenium conversion rate can reach 88%; the nano-selenium prepared from the plant lactobacillus 002P is spherical, has the particle size of 200-500nm, has excellent properties of resisting oxidation, relieving hepatotoxicity induced by saturated fatty acid, promoting expression of selenoprotein in a mouse body and reducing blood fat, and has a wide application prospect.

The invention belongs to the technical field of microorganisms, and particularly relates to pediococcus acidilactici 32 and application thereof. The invention relates to pediococcus acidilactici 32, which is preserved in the China Center for Type Culture Collection on July 28, 2025, and the preservation number of the pediococcus acidilactici 32 is CCTCC (China Center for Type Culture Collection) NO: M20251721. The strain has extremely high acid resistance, and the survival rate is still 70.30% after the strain is treated for 2 hours under the extreme acid condition of pH 2 and is far higher than that of an existing strain; excellent cholate tolerance: the survival rate can still reach 92.30% after being treated in 0.3% cholate for 3 hours, so that the colonization ability of the strain in intestinal tracts is remarkably improved; the broad-spectrum antibacterial effect is achieved, the obvious inhibiting effect on various pathogenic bacteria is achieved, and the diameter of an inhibition zone is larger than or equal to 18 mm.

The invention discloses a rapid drug sensitivity detection method based on fish tissue homogenate, which comprises the following steps: taking fish tissues for homogenate, coating and inoculating the obtained homogenate on a flat plate, placing a drug sensitivity paper sheet, culturing for 16-24 hours at 30 DEG C, then measuring the diameter of an inhibition zone on the flat plate, and judging a drug sensitivity detection result. According to the method, the sample pretreatment and detection process is simplified, diseased fish tissue homogenate is directly used, the detection period is remarkably shortened to be within 1 d, and meanwhile the result accuracy is ensured. According to the technical scheme, the method comprises the steps of sample collection under the sterile condition, tissue homogenate preparation, homogenate coating inoculation, drug sensitive paper sheet placement and culture result interpretation. The method has the advantages of high efficiency, rapidness, simplicity and convenience in operation, accurate result and wide application range, is suitable for drug sensitivity detection of various fish pathogenic bacteria, and has important practical application value.

The present invention belongs to the field of microbial technology, and discloses a strain of Lactobacillus brevis and its antibacterial optimization culture method and application. The strain is Lactobacillus brevis (Lactobacillus brevis) L1612, which has been deposited in Guangdong Provincial Microbial Culture Collection Center on August 4, 2022, with a deposit number of GDMCC 62642. The strain of the present invention has broad-spectrum, efficient antibacterial properties, has the potential to produce new bacteriocins, and is safe and non-resistant. It can be used in the preparation of intestinal antibacterial drugs and in functional foods containing lactic acid bacteria. The present invention also provides an antibacterial optimization culture method for the bacteria, which uses MRS culture medium as a basal culture medium, optimizes the composition ratio and culture conditions in the basal culture medium, and makes the diameter of the inhibition zone of the bacterial fermentation broth increase significantly, which is 25.21% higher than before optimization, thereby facilitating the bacteria to be widely used in the fields of antibacterial drugs and functional food production.

This invention belongs to the field of biotechnology and discloses a strain of Bacillus amyloliquefaciens ZJ02 that inhibits bacterial growth and reduces ammonia nitrogen. Its accession number is CCTCC NO: M20252399, the accession date is October 30, 2025, and the depositary institution is the China Center for Type Culture Collection, located at Wuhan University, Wuhan, China. ZJ02 exhibits significant antibacterial effects against Escherichia coli and Salmonella, with an inhibition zone size of 18.11 mm against Salmonella (SA) after 24 hours. Compared to other strains, it demonstrates superior ammonia nitrogen degradation under the same conditions, achieving a degradation rate of 76.58%, reaching as high as 87.57% at an initial ammonia nitrogen concentration of 500 mg / L. Furthermore, it possesses excellent ability to reduce ammonia release from animal feces. In ammonia removal tests conducted in pig farm environments, compared to the control group, the NH3 concentration decreased by 60.27% on day 6, significantly outperforming Bacillus subtilis and Bacillus licheniformis. This invention also provides the application of this Bacillus amyloliquefaciens.

The invention discloses bacillus coagulans JBHBIO-BNJ13 with high antibacterial activity as well as a fermentation process optimization method and application of the bacillus coagulans JBHBIO-BNJ13, and relates to the technical field of microorganisms. The bacterial strain is obtained through NTG mutagenesis, UV mutagenesis and ARTP mutagenesis and is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.32216. The concentration of lactic acid produced by the strain can reach 84.31 g / L, the inhibitory activity on Listeria monocytogenes is relatively strong, and the diameter of an inhibition zone reaches 13.68 mm. After the strain is cultured by using the optimization method disclosed by the invention, the spore concentration of the bacillus coagulans can reach 3.92 * 10 < 9 > CFU / mL after the strain is fermented for 42 hours in a 10L fermentation tank. The method is of great significance in lactic acid production, pathogenic bacteria inhibition, organism immunity improvement, organism digestion function enhancement, intestinal health promotion and the like.

The invention belongs to the field of antibacterial materials, and particularly relates to tannic acid-imidazole / polyacrylamide composite hydrogel as well as a preparation method and application thereof. The tannic acid-imidazole organic compound is successfully prepared by a method of directly polymerizing an antibacterial unit, and is introduced into a network structure of the hydrogel. Through system testing, the material has a remarkable antibacterial effect on staphylococcus aureus and escherichia coli, and the diameter of an inhibition zone can reach 30 mm or above. In addition, the material also shows good oxidation resistance and adhesion performance. As a novel antibacterial material, the composite hydrogel has wide application potential. The tannic acid-imidazole / polyacrylamide composite hydrogel prepared by the invention not only has dual antibacterial effects and chemical stability, but also shows excellent hydrogel performance and wide application field, and the application potential of the tannic acid-imidazole / polyacrylamide composite hydrogel as a novel antibacterial material is further enhanced.

The present invention discloses an Aspergillus oryzae JAAS-32 and use thereof in preparation of a larval Hermetia illucens paste protein peptide. The Aspergillus oryzae JAAS-32 was deposited in Guangdong Microbial Culture Collection Center (GDMCC) on Aug. 10, 2023 with an accession number of GDMCC No: 63725, classified and named Aspergillus oryzae. A larval Hermetia illucens paste is subjected to enzymatic fermentation by the Aspergillus oryzae JAAS-32 provided by the present invention for 20-40 hours. The content of the protein peptide (<10 kDa) is 1.53 times that of an untreated group; the content of free amino acids is 1.41 times that of the untreated group; the total antioxidant activity is 1.35 times that of the untreated group. Diameters of inhibition zones against Staphylococcus aureus, Escherichia coli, and Vibrio alginolyticus are 1.62, 1.17, and 1.45 times those of the untreated group, respectively. The strain is cultured readily, fast in growth, and well-adapted. A low-cost, easy-to-operate, and efficient method for enhancing antibacterial performance of the larval Hermetia illucens paste can be established on the basis of the strain.

The invention relates to the field of application of microorganisms in livestock and poultry breeding sewage, in particular to a process for screening and separating various different microorganism strains in the livestock and poultry breeding sewage, inhibiting pathogenic bacteria and producing enzyme and culturing. The provided bacillus subtilis VK18 (GDMCC NO: 65825) and bacillus velezensis VK14 (GDMCC NO: 65979) are both preserved in Guangdong Province Microbial Culture Collection Center, the strains have uniqueness, the viable count of the two strains is high, and the two strains can secrete lipase, amylase and protease through preliminary screening; the lipase, the amylase and the protease with higher activity can be obtained by optimizing two microbial enzyme production culture conditions, such as temperature, time and pH, supplementing exogenous bacterial preparations with different proportions and volume ratios and the like; meanwhile, the antibacterial agent has a specific antibacterial effect, can generate an inhibition zone on specific pathogenic bacteria, effectively inhibits proliferation of the pathogenic bacteria, changes a flora structure of livestock and poultry breeding sewage and reduces the risk of secondary pollution of the sewage; a strain source is provided for subsequent industrial application.

Novel composites as antibacterial agents having crystalline oxides (TiO2 and ZnO) combined with organoselenium compounds. The organoselenium aids in increasing the biosafety of the synthesized composite, which is characterized by different physicochemical techniques. Additionally, XRD indicates that the oxide part of the introduced composite is a mixture of TiO2 as a rutile structure and ZnO as a hexagonal structure. The results confirm the successful grafting of the organoselenium compound onto the mixed oxide nanoparticles. Besides, the SEM and TEM morphology of the fabricated composites was found as heterogeneous particles that are formed as micro flowers or nanosheets according to the specific organoselenium compound used. The formed composites have a promising inhibition zone against many microorganisms and can be effective as novel antibacterial agents.

The invention discloses a Stagnosporopsis pogostemonis YNF4655 fermentation extract and application of the Stagnosporopsis pogostemonis YNF4655 fermentation extract, the Stagnosporopsis pogostemonis YNF4655 is preserved in the China Center for Type Culture Collection, and the preservation number of the Stagnosporopsis pogostemonis YNF4655 is CCTCC NO: M 20242804. The strain is fermented to prepare a Stagonosporopsis pogostemonis YNF4655 extracting solution, and the average diameter of an inhibition zone of the Stagonosporopsis pogostemonis YNF4655 extracting solution on pathogenic bacteria of the tobacco brown spot is 32.5 mm, so that the fermented extract has strong inhibition activity on the pathogenic bacteria of the tobacco brown spot and can be applied to inhibition of the pathogenic bacteria of the tobacco brown spot. Meanwhile, the invention has the advantages of simple preparation process flow and low raw material cost, and has better potential application value in the technical field of crop pesticides.

This invention discloses the application of *Ulva prostrata* extract in the preparation of preventive and therapeutic antibacterial drugs. The antibacterial components of *Ulva prostrata* are extracted by ethanol extraction using a reflux extraction method. The extract shows significant antibacterial effects against *Staphylococcus aureus*, *Pseudomonas aeruginosa*, *Acinetobacter baumannii*, and *Micrococcus luteus*. The minimum inhibitory concentrations (MICs) are 3.125 mg / mL, 12.5 mg / mL, 6.25 mg / mL, and 3.125 mg / mL, respectively. The extract exhibits good stability to heat treatment and ultraviolet light, and shows good antibacterial effects in neutral and slightly alkaline environments. Metal ions affect the antibacterial effect of the extract, but the diameter of the inhibition zone is greater than 7 mm.

The present application relates to the field of microbial agricultural technology, and more particularly to a microbial preparation, a preparation method thereof and application thereof in improving continuous cropping obstacles, and provides a microbial preparation, a preparation method thereof and application thereof, wherein the microbial preparation is prepared by fermentation of Bacillus subtilis, and the fermentation culture solution contains shrimp and crab shells, collagen, sodium chloride, amino acids, carbohydrates and compound fertilizer, so that the preparation can not only inhibit harmful bacteria, but also provide a large amount of nutrients for crops. Experiments show that the microbial preparation provided by the present application can make the inhibition zone of the bacterial agent on pathogenic bacteria reach more than 6 times that of the control group. Field experiments show that the bacterial agent can significantly increase the content of trace elements in soil and improve the diseases of ginseng, panax notoginseng and rehmannia caused by continuous cropping.

The disclosure discloses a strain of Lactobacillus crispatus capable of preventing and / or treating Helicobacter pylori infection, and belongs to the technical fields of microorganisms and medicine. The disclosure provides a strain of Lactobacillus crispatus CCFM1118. The Lactobacillus crispatus CCFM1118 can inhibit Helicobacter pylori, specifically embodied in that: (1) the diameter of an inhibition zone of supernatant of the Lactobacillus crispatus CCFM1118 on Helicobacter pylori can reach 13.14 mm; and (2) the Lactobacillus crispatus CCFM1118 can significantly reduce the adhesion of Helicobacter pylori to AGS cells. Therefore, the Lactobacillus crispatus CCFM1118 has great application prospects in inhibiting Helicobacter pylori (not for the purposes of disease diagnosis and treatment) and preparing Helicobacter pylori inhibitors.

The invention relates to a bacteriostatic feed and a preparation method and application thereof, the bacteriostatic feed comprises a basic ration and yeast essence, the content of beta-glucan in the yeast essence is 25-50%, and the relative molecular weight of more than 99% of beta-glucan is 3.0 * 10 < 5 >-1.0 * 10 < 6 >; the content of mannan in the yeast essence is greater than or equal to 20%, and the relative molecular weight of mannan of 99% or above is 8.0 * 10 < 5 >-2.0 * 10 < 6 >. The yeast essence involved in the feed disclosed by the invention is added into the feed as a single substance, the recommended dosage is stable, and the yeast essence shows a relatively good resistance replacement effect in in-vitro inhibition zone simulation and in-vivo test verification of bred animals; a set of efficient and feasible antibiotic substitution scheme can be provided for the animal breeding industry, meanwhile, the defects of antibiotic drug resistance and residues and poor effect and poor stability of current antibiotic substitution products are overcome, and the future prospect is considerable.

The invention discloses a cladosporium rubrum YNF2QT fermentation extract and application of the cladosporium rubrum YNF2QT fermentation extract, the cladosporium rubrum YNF2QT is preserved in the China Center for Type Culture Collection, and the preservation number of the cladosporium rubrum YNF2QT is CCTCC NO: M 20242803. The strain is fermented to prepare a cladosporium erythraeum YNF2QT extracting solution, and the average diameter of an inhibition zone of the cladosporium erythraeum YNF2QT extracting solution on tobacco brown spot pathogenic bacteria is 35.0 mm, so that the cladosporium erythraeum YNF2QT extracting solution has strong inhibition activity on the tobacco brown spot pathogenic bacteria, has the advantages of simple preparation process and strong antibacterial effect, and has potential application value.

The invention discloses a preparation method of a cinnamyl aldehyde loaded silicon dioxide nano antibacterial agent, relates to a preparation method of a nano antibacterial agent, and aims to solve the technical problem that the antibacterial effect is influenced due to the fact that the conventional cinnamyl aldehyde antibacterial agent is easy to volatilize and poor in water solubility. The preparation method comprises the following steps: adding silicon dioxide into an alcohol solution of cinnamyl aldehyde, heating to boil, carrying out reflux reaction, and then centrifugally separating out a precipitate, thereby obtaining the cinnamyl aldehyde loaded silicon dioxide nano antibacterial agent. When the concentration of the nano-antibacterial agent is 0.4-1g / L, the diameter of an inhibition zone of the nano-antibacterial agent to staphylococcus aureus is about 30-55mm, and the diameter of an inhibition zone of the nano-antibacterial agent to escherichia coli is about 27-45mm. The method can be used in the field of antibacterial agents.

This invention relates to the field of automated microbial antimicrobial susceptibility testing technology, specifically to an automatic device for measuring the diameter of inhibition zones. The device includes an image acquisition module, an antimicrobial susceptibility test strip center positioning module, a radial transmittance profile construction module, a diffusion-MIC inversion module, and a diameter output module. This invention reconstructs the traditional inhibition zone measurement paradigm based on image edge detection and geometric circle fitting into a radial profile inversion paradigm based on a physical model of antimicrobial substance diffusion in agar. It constructs a radial transmittance profile and a family of azimuth profiles with the center of the antimicrobial susceptibility test strip as the polar coordinate origin, inversely infers the local diffusion coefficient field, and uses Fick's second law to nonlinearly invert the minimum inhibitory concentration (MIC) radius. Simultaneously, it separates dual-zone resistant subgroups through residual multi-peak detection and achieves dynamic prediction through temporal differential constraints. This invention achieves a measurement standard deviation better than 0.1 mm, supports dual-zone identification and culture endpoint prediction, and is significantly superior to existing automatic measurement schemes based on edge detection.

The invention discloses a thiazole compound and a new application of the thiazole compound in preparation of a mycobacterium abscessus mycothiol disulfide reductase inhibitor and a mycobacterium abscessus resisting medicine. According to the invention, a compound capable of targeting mycobacterium abscessus mycothiol disulfide reductase and inhibiting the enzymatic activity of the mycobacterium abscessus mycothiol disulfide reductase is screened and synthesized, and meanwhile, the compound has mycobacterium abscessus resisting activity. According to the present invention, the anti-mycobacterium abscessus effect of the compound is semi-quantitatively determined by using the paper diffusion method, the thiazole compound can form the significant inhibition zone on the plate so as to show the anti-mycobacterium abscessus activity, and the synthesized thiazole compound can be used as the inhibitor of the mycobacterium abscessus branched mercaptan disulfide reductase, and can be used for the preparation of the anti-mycobacterium abscessus. And the compound is expected to be developed into a novel anti-mycobacterium abscessus medicine, and has an important application value.

The invention belongs to the technical field of microorganisms, and relates to an actinomycete strain and application thereof. The actinomycete strain is classified and named as amycolatopsis reevesii NVA54, the Latin name is Amycolatopsis reevesii, the preservation number of the actinomycete strain is CGMCC (China General Microbiological Culture Collection Center) 33989, and the preservation date is March 26, 2025. The invention further discloses a bacteriostatic agent containing the actinomycetes strain and application of the bacteriostatic agent and the actinomycetes strain. The actinomycete strain can obviously inhibit pathogenic bacteria of root rot, an obvious antibacterial zone is formed, and the antibacterial rate is not lower than 87.53%.

The invention relates to the technical field of microorganisms, in particular to heat-resistant lactobacillus paracasei and application thereof. The preservation number of the Lactobacillus paracasei R01NGW is GDMCC (China General Microbiological Culture Collection Center) No: 66026, and the preservation number of the Lactobacillus paracasei R01NGW is CGMCC No: 66026. Through gradient high-temperature domestication of chicken house manure and selective culture medium screening containing polylysine hydrochloride, a strain which has the characteristics of heat resistance (survival at 70 DEG C is greater than or equal to 108 CFU / mL), strong antibacterial activity (inhibition zone of 15-20 mm) and gastric acid and cholate resistance is obtained. The screening culture medium enables the bacillus inhibition rate to reach 99.9% through a triple screening mechanism of physical, chemical and biological targeted bacteriostasis. The strain can be applied to the fields of high-temperature feed processing, silage fermentation, probiotic preparations and biological bacteriostasis, and a safe and efficient solution is provided for application of lactic acid bacteria in a heat-resistant scene.

The utility model belongs to the technical field of experimental utensils, and discloses a culture dish device for laboratory bacteriostatic activity tests, a perforated plate is mounted in a culture dish base in a penetrating manner, and a culture dish cover is placed on the top of the perforated plate; seven hole forming columns are fixedly installed at the bottom of the punching plate, and two symmetrically-arranged S-shaped components are fixedly installed on the outer side of the punching plate. The perforated plate can be effectively separated by adopting the S-shaped component, so that the solidified culture medium forms uniform sample adding holes, and meanwhile, the pollution risk of the culture medium is reduced; the fixed clamping seat and the positioning groove are adopted to effectively position the position of the sample adding hole to be concentric with the positioning circle, direct measurement and comparison of test effects are facilitated, compared with a traditional puncher, the device is easy to operate, the defects of cracking of a solid culture medium and the like are not easily caused, and the environmental microbial pollution risk in the bacteriostatic experiment process is effectively controlled; and the diameter of the inhibition zone can be directly measured.

The invention discloses an antibacterial peptide fragment intercepted from a mined fly IDGF4 protein and application of the antibacterial peptide fragment in preparation of antibacterial drugs. According to the invention, oligopeptide fragments at different parts in the collected fly IDGF4 protein are screened, three candidate peptides are obtained through chemical synthesis, the antibacterial performance of the candidate peptides is systematically evaluated, antibacterial experiment results show that the oligopeptide with the amino acid sequence shown as SEQ ID No.2 can effectively inhibit the growth of salmonella and staphylococcus aureus under the concentration of 1mg / mL, and the oligopeptide with the amino acid sequence shown as SEQ ID No.2 can effectively inhibit the growth of salmonella and staphylococcus aureus under the concentration of 1mg / mL. The antibacterial effect of the peptide is confirmed in inhibition zone experiments, enzyme-labeled turbidimetry and growth curve monitoring, and the peptide shows stable and remarkable antibacterial activity, which indicates that the peptide can be used as a novel antibacterial molecule. The invention provides a new candidate sequence for developing the antibacterial peptide with high efficiency and low drug resistance risk, and has application potential in the aspect of preparing clinical antibacterial drugs.

The invention discloses an in-situ capture and enrichment device for lake and reservoir actinomycetes, and belongs to the technical field of water treatment. The lake and reservoir actinomycete in-situ capture and enrichment device comprises a separation and enrichment assembly used for conducting in-situ enrichment on actinomycetes, the separation and enrichment assembly comprises a fiber membrane container, a hollow fiber membrane rubber cover and filling and sealing pipes, a hollow fiber membrane is arranged in the fiber membrane container, the filling and sealing pipes are arranged at the two ends of the fiber membrane container, the ends are sealed through the rubber cover, and the hollow fiber membrane is arranged in the fiber membrane container. The device further comprises a fixing device used for fixing the separation and enrichment assembly, the fibrous membrane container is vertically clamped to the fixing device, the separation and enrichment assembly is combined with the culture medium, growth of actinomycetes is met while growth of other competitive infectious microbes in an inhibition area is achieved, and therefore the in-situ capture and enrichment rate of the actinomycetes is increased.

The utility model discloses a culture dish for detecting an inhibition zone, which comprises a culture dish cover and a culture dish main body, and is characterized in that an annular baffle is arranged on the inner side of the bottom of the culture dish main body. When the culture dish for detecting the inhibition zone is used for preparing the solid culture medium for detecting the inhibition zone, complicated operations such as accurate measuring cylinder measurement or weighing are not needed, the volume and height of the solid culture medium for detecting in different culture dishes can be ensured to be consistent, and the deviation influence on the determination of the inhibition zone caused by different addition amounts of the culture medium is avoided.

The present invention relates to the field of microbial technology, and specifically discloses a bull Streptomyces 11-2-1 and its application. The bull Streptomyces 11-2-1 (CGMCC No. 32268) provided by the present invention is a natural strain isolated from the rhizosphere soil of a wheat field. It is safe and environmentally friendly, can effectively inhibit the growth of ginger rot pathogens, and does not affect the normal growth of ginger. The test results show that the ginger rot pathogen can be observed to be inhibited after 24 hours of cultivation using the inhibition zone method. The inhibition zone is more obvious after 48 hours of cultivation, and the diameter of the inhibition zone can reach 35 mm. The bull Streptomyces 11-2-1 provided by the present invention provides a reference for the later research of natural strains, and is of great value to the development of microbial agents for preventing and treating ginger rot.

Systems, methods of manufacture, and packaging configurations for an antimicrobial orthopedic implant having an antimicrobial coating on the outer surface of the implant including a vaporizable antimicrobial agent in a surface area concentration on the outer surface sufficient to prevent bacterial growth on the orthopedic implant, and provide a clinically effective zone of inhibition around the orthopedic implant. In certain embodiments, a container, a reservoir of the vaporizable antimicrobial agent, and the orthopedic implant are configured to remain thermally stable in a temperature range up to 200 C.