860 results about "Bacterial growth" patented technology

A composite vascular graft incorporates bioactive agents to deliver therapeutic materials and/or inhibit or reduce bacterial growth during and following the introduction of the graft to the implantation site in a vascular system. A composite vascular graft includes a porous tubular graft member. One or more biodegradable, bioactive agent coating layers are disposed over the graft member, the coating layer including at least one bioactive agent. A biodegradable sheath is disposed over the coating layer. The sheath has a rigidity greater than the flexible tubular graft member and is biodegradable to expose the coating layer so as to re-establish the flexibility of the tubular graft member.

The present invention relates to an integrated closed loop system for aquaculture in at least one culturing tank and using continuous bioreactor technology for the biological treatment and removal of organic material, nitrogen and phosphorous, comprising: an integrated, partially or wholly closed loop system for waste water treatment, where the water contains nitrogen containing compounds and/or substances, comprising at least one production unit of such nitrogen containing compounds and/or substances and using continuous bioreactor technology for the biological treatment and removal of organic matter, nitrogen and phosphorous from the said water at continuous flow, comprising: a) at least one suspended carrier bioreactor for bacterial growth under anoxic conditions to cause anaerobic denitrification, with one or several compartments, preceding b) at least one suspended-carrier bioreactor for bacterial growth under oxic conditions to cause aerobic nitrification, c) the denitrification taking place after the production unit, and d) the nitrification taking place prior to the production unit in a by-pass mode as part of the continuous flow.

The invention relates to a modified starch material for biocompatible hemostasis, biocompatible anti-adhesion, tissue healing promotion, absorbable surgery sealing and tissue adhesion. The invention applies biocompatible modified starch to animal tissues, wherein the modified starch material has the molecular weight of more than 15,000 daltons, and the particle diameter of between 1 and 1,000 mu m. The modified starch hemostatic material has stypticity, reduces hemorrhage, blood oozing and tissue fluid oozing of wounds, maintains relative moistening or drying of wound surfaces or the wounds, inhibits bacterium growth and inflammation reaction, and contributes to locally diminish inflammation of the wounds and relieve pain of patients. Moreover, the modified starch material can wash local parts after operation is over and remove redundant modified starch which does not participate in hemostasis, and can easily remove haemostatic under the condition of debridement treatment after self-help and first-aid treatment of war wounds; and hemostatic materials with a small amount of modified starch can be absorbed by the body, so that the pain of tearing of gauzes and bandages on people is avoided.

An isolated Bacillus amyloliquefaciens Ba-BPD1 having an Accession No. of DSM 21836 is provided. This novel strain has unique 16S ribosomal RNA sequenced as SEQ ID NO:1 and produces amylase, protease, cellulase and lipase, fibrinolytic enzyme to show their biodegradation capacities. Further, B. amyloliquefaciens Ba-BPD1 produces the antibiotic substances, such as iturin, fengycin and surfactin, and has antimicrobial capacity for inhibiting the fungal or bacterial growth. In conclusion, the novel strain of Bacillus amyloliquefaciens Ba-BPD1 and its products can be applied in agriculture, wastewater treatment, food industry and chemical industry.

Biodegradable polymer-coated surgical meshes formed into pouches are described for use with cardiac rhythm management devices (CRMs) and other implantable medical devices. Such meshes are formed into a receptacle, e.g., a pouch or other covering, capable of encasing, surrounding and/or holding the cardiac rhythm management device or other implantable medical device for the purpose of securing it in position, inhibiting or reducing bacterial growth, providing pain relief and/or inhibiting scarring or fibrosis on or around the CRM or other implantable medical device. Preferred embodiments include surgical mesh pouches coated with one or more biodegradable polymers that can act as a stiffening agent by coating the filaments or fibers of the mesh to temporarily immobilize the contact points of those filaments or fibers and/or by increasing the stiffness of the mesh by at least 1.1 times its original stiffness. The pouches of the invention can also provide relief from various post-operative complications associated with their implantation, insertion or surgical use, and, optionally, include one or more drugs in the polymer matrix of the coating to provide prophylactic effects and/or alleviate side effects or complications associated with the surgery or implantation of the CRM or other implantable medical device.

Dairy or non-diary based fortified carbonated beverage solutions that supply essential nutrients in the human diet. The solution contains per 354 ml, calcium, magnesium and potassium ions in the form of salts and optionally vitamins A, D, C, lutein, zeaxanthin and folic acid in specified amounts to provide dietary supplementation. Sweeteners, stabilizers, flavors and carbonation can also be added to enhance flavor, taste, mouth-feel, ingredient solubilization and product appearance. A method of making the beverages is also described. A method of using carbonation to reduce bacterial counts and reduce degradation of essential nutrients in milk-based beverages with or without pasteurization is also disclosed.

The novel discovery that protonated nucleic acids inhibit bacterial growth is reported and methods for the preparation and therapeutic use of nuclease resistant and acid resistant protonated/acidified nucleic acids for administration to animals including man, to treat or prevent a bacterial infection are described.

The method of reusing ammonia nitrogen containing effluent as circular cooling water is characterized by the addition of alkali, bicarbonate, carbonate, hydrophosphate, dihydric phosphate or phosphate to increase the scaling factor of water and the cooperation with scale-inhibiting corrosion inhibitor and bactericide to control corrosion, scaling and bacterial growth in the reused effluent. The method of the present invention is suitable for reusing ammonia nitrogen containing effluent as circular cooling water.

The present invention provides a food preservation system that includes a multi-phase bacterial inhibition food pad. The food pad includes absorbent media and/or material to absorb fluids emanating from the packaged food. The absorbent media/material includes one or more bacterial inhibitors that may possess bacteriostatic and/or bactericidal properties. In addition, the food pad may also include an atmosphere modification system capable of modifying an atmosphere in a food package. Optionally, one or more reaction promoters and/or one or more mechanisms to protect the food preservation system may also be included in the food pad. Overall, the food preservation system inhibits bacterial growth, thereby enhancing food preservation and/or food safety.

An aqueous composition adapted to kill bacteria in both planktonic and biofilm states is lethal toward a wide spectrum of gram positive and gram negative bacteria as well as other microbes. The composition, which is slightly to moderately acidic, includes a significant amount of one or more surfactants and large amounts of osmotically active solutes. The composition can be applied directly to a site of bacterial growth. Even when the bacteria is in biofilm form, the surfactant component(s) begin to kill the bacteria before the macro-molecular matrix is removed or dislodged from the site.

The present invention relates to a method for determining the presence or absence of contaminating bacteria in a packaged food sample comprising storing food in a package having as a lining a hydrophilic polymeric composition, said composition preferably being permeable to water and at least one gas dissolved in water or water vapor and being selected from the group consisting of carbon dioxide, carbon monoxide, hydrogen sulfide, sulfur dioxide, hydrogen and ammonia gas and containing an indicator for detecting the presence or abscence of said gas; said indicator being polymerized or dispersed throughout said polymeric composition or coated onto a hydrophobic polymeric composition.

A sanitary, disposable dispensing assembly especially useful in producing a substantially contaminant-free reconstituted mixture of diluent and pure, preservative-free concentrate includes an inner member linearly slidable between open and closed positions in an outer member provided with a concentrate inlet. The dispensing assembly features a vent arrangement for enabling a complete draining of the mixture and preventing bacterial growth. A rib arrangement improves mixing of the combined diluent and concentrate, and prevents dispersion of the mixture when dispensed. The dispensing assembly is utilized in mechanical pump type and non-mechanical pump type applications on a post mix food and beverage dispenser.

A surgical instrument for use in a surgical site includes a first surface that is positionable within or near the surgical site and has an anti-bacterial coating disposed on the surface. The anti-microbial coating includes anti-microbial particles disposed in a polymer matrix wherein the anti-microbial particles are in sufficient concentration and are positioned to provide an anti-microbial effect at the surgical site. Bacterial growth is also inhibited on the coated surface of the instrument.

Compositions, methods, devices and media are provided for platelet storage container that prevents bacterial growth in the stored platelets. The invention relates to blood bank needs in safely storing platelets collected from donors for more than 5 days at room temperature. The container is built with natural adsorbent media that have the characteristics in capturing and killing bacteria and viruses. The stored platelets are isolated from the natural adsorbent material during storage to preserve their medical quality and safety.

An isolated Bacillus amyloliquefaciens Ba-BPD1 having an Accession No. of DSM 21836 is provided. This novel strain has unique 16S ribosomal RNA sequenced as SEQ ID NO:1 and produces amylase, protease, cellulase and lipase, fibrinolytic enzyme to show their biodegradation capacities. Further, B. amyloliquefaciens Ba-BPD1 produces the antibiotic substances, such as iturin, fengycin and surfactin, and has antimicrobial capacity for inhibiting the fungal or bacterial growth. In conclusion, the novel strain of Bacillus amyloliquefaciens Ba-BPD1 and its products can be applied in agriculture, wastewater treatment, food industry and chemical industry.

The invention discloses a toy cleaning device, which comprises a working box and legs fixed on the bottom of the working box. A water outlet pipe is communicated with the top of the working box. Both sides of the working box are symmetrically provided with first rotating shafts. The invention has a simple structure. The toy to be cleaned is placed on the conveyor belt, and the toy is brought into the working box by the conveyor belt, and the toy is cleaned by using the bristles. The cylinder drives the L-shaped rod to rotate, and the toy is turned over to clean all sides of the toy. At the same time, the first magnet on the friction wheel rotates with it, and the first magnet and the second magnet attract each other, and the second spring Under the action of the fan, the rack can move back and forth, the rack meshes with the sector gear, drives the nozzle to swing, rinses the toy from all angles, and improves the cleaning effect, and the fan can speed up the evaporation of residual water in the toy to prevent bacteria from breeding again.

The invention relates to a treatment method of circulating water with leaked ammonia nitrogen, which comprises the following steps: a) controlling the pH value of the circulating water to 7.5-9.0; b) adding a scale and corrosion inhibitor which comprises the following components: A) at least one salt selected from water-soluble borate, water-soluble molybdate, water-soluble tungstate, water-soluble gluconate, and water-soluble silicate, B) at least one scale inhibiting dispersant which is at least one phosphorus-free polymer with a carboxylic group, C) a zinc salt, and optional D) a copper corrosion inhibitor; c) adding at least one non-chlorine bactericide which is a bromine-containing bactericide or a chlorine-containing bactericide that does not generate hypochloric acid or hypochlorite in water. The invention controls the problems of corrosion, scaling, and bacterial growth in the circulating water system with leaked ammonia nitrogen by methods of adjusting the pH value of the circulating water, and combining with the phosphorus-free scale and corrosion inhibitor and the non-chlorine bactericide.

The invention discloses a health food capable of improving intestinal floras and a preparation method of the health food. The intestinal floras are adjusted on a plurality of aspects of increasing the probiotics variety and quantity, adding probiotic nutrient substances, inhibiting the harmful bacterial growth and increasing the human immunity, so that the gastrointestinal functions are improved. With probiotic powder such as lactobacillus plantarum as a main raw material, an edible mushroom extract is scientifically compounded, and dietary fibers are modified, so that the human immunity can be significantly improved; a saussurea involucrate culture extract has the efficacies of resisting inflammation, relieving pain, and resisting oxidation, radiation and fatigue; the variety of the intestinal beneficial bacteria floras is increased; the field planting capacity of endogenous and exogenous probiotics in human intestinal tracts is significantly enhanced and the field planting time of endogenous and exogenous probiotics in human intestinal tracts is significantly prolonged; the growth and the reproduction of intestinal harmful bacteria, especially gram negative bacteria, are effectively inhibited; the components of the intestinal beneficial bacteria floras are fully adjusted; and the health food which is high in probiotic property, and is capable of significantly improving the human immunity and improving the intestinal floras is prepared.

A fermentation process for the production of ethanol from natural sources, such as corn, comprising introducing a fermentable sugar and an inoculant, and a bacteriophage cocktail into a fermentation system and introducing a cocktail comprising one or more lytic bacteriophage is added to one or more of the fermentable sugar, the inoculant, or the fermentation system. Bacteriophages that infect and lyse the bacteria that contaminate fermentable sugars are selected. The bacteriophage cocktail is added in an amount effective to substantially prevent growth of these bacteria.

The invention relates to an A2N-SBR (anaerobic-anoxic/nitrification-sequencing batch reactor) process with a shortcut nitrification-denitrification denitrifying and dephosphorizing function. Compared with an A2N-SBR process with a complete nitrification-denitrification denitrifying and dephosphorizing function, the A2N-SBR process provided by the invention saves aeration amount and organic carbonsource amount, greatly reduces residual sludge amount and saves operation cost. The A2N-SBR process provided by the invention comprises a main reaction tank and auxiliary equipment, wherein the main reaction tank comprises an A2-SBR and an N-SBR; and the auxiliary equipment comprises stirring equipment, aeration equipment, a dissolved oxygen detection device, a reflux pump, pH adjusting equipment, a pH detection device, heating equipment and a temperature detection device. The A2N-SBR process provided by the invention has the advantages that: two independent SBRs are adopted; nitrite bacteriaand denitrifying phosphate-accumulating bacteria grow separately in the two reactors through controlling proper conditions, so that denitrification is carried out when NH4<+>-N oxidation goes to NO2<-> stage, thus operation energy consumption is greatly saved, bacteria are not mutually influenced in the operation process, and the bacterial activity is higher in the whole bacterial growth process;and the process is simple, the arrangement is compact and the automation degree is high.

A composition and method for treating periodontal infections and gingivitis includes an extract of Centipeda cunninghami, coenzyme Q10, aloe vera and folic acid. The composition also contains additional plant extracts and nutrients that are effective in cell reproduction, wound healing and provide antibacterial and anti-inflammatory effects. The composition is applied to the teeth and gums to inhibit bacterial growth and reduce inflammation of the gums.

A composite vascular graft incorporates bioactive agents to deliver therapeutic materials and/or inhibit or reduce bacterial growth during and following the introduction of the graft to the implantation site in a vascular system. A composite vascular graft includes a porous tubular graft member. A flexible ePTFE sheath is disposed over the tubular graft member. The sheath includes the bioactive agents incorporated therein.

A system, method and apparatus for treating wastewater containing biodegradable material wherein a submerged stand alone perforated cylinder reactor pod containing aerobic bacterial growth media and a draft tube with air pressure induced pumping action creates a spray or splash pattern so as to recirculated aerated liquor through the media and also to the area surrounding the cylinder pod. Free interchange of mixed and unmixed liquor is provided via the perforations in the cylindrical pod wall. Provision is also made for back flushing the media and returning mixed liquor to an area remote from the reactor pod.