126 results about "Bacteria removal" patented technology

A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.

There is provided a wipe for the removal of bacteria from surfaces. The wipe has a positive charge that may be developed through the use of cationic treatments. The wipe may be dipped in an aqueous solution of a non-antimicrobial treatment having a positive charge and the excess solution squeezed out of the wipe. Treatment of the resulting coated wipe with heat at a temperature and for a time sufficient adheres the coating to the wipe. Alternatively, a non-antimicrobial, cationically charged chemical may be imbedded in the web such that it will bloom to the surface when the wipe is exposed to water. The web is desirably a pulp and synthetic fiber fabric made by coforming or hydroengling and may be a laminate including other layers. The treated web removes a substantial amount of the bacteria from a surface yet does not appreciably inhibit the growth of the bacteria. The web does not contain harsh chemicals and so is mild in its effect on the user's skin. The removal of the bacteria in contrast to killing the bacteria does not encourage it to develop immunity to the treatment.

The present invention relates to a passion fruit-kiwi fruit composite juice and a preparation method thereof. The juice comprises 20-30% of a fruit-kiwi fruit juice, 10-15% of a kiwi fruit juice, 3-5% of honey, and the balance of water. The preparation method comprises: cleaning and cutting the passion fruit; taking the flesh with seeds; carrying out juicing on the flesh with seeds; cleaning the kiwi fruit; removing peel and carrying out juicing on the flesh of the kiwi fruit; uniformly mixing the resulting two juices; heating to a temperature of 20-60 DEG C; adding pectinase and amylase to carry out an enzymolysis treatment; adding water and honey to the filtered juice to adjust the taste; adopting a bacteria removal filtration membrane to remove partial bacteria; carrying out homogenizing and degassing on the bacteria-removed juice; carrying out vacuum packaging; and carrying out hyperpressure sterilization to perform an enzyme inactivation treatment to obtain the composite juice. With the preparation method of the present invention, the unique flavor of the passion fruit and the kiwi fruit fragrance can be maintained, the produced juice has characteristics of original juice remaining, original taste remaining, natural and persistent fragrance, and pure flavor, the juice quality is improved, and the pursuit of the majority of consumers on the natural juice is met.

A filter block having a permeability of greater than about 3.0*10−9 cm2, and a F-VLR of greater than about 99% is provided. The filter block may be made of filter particles having a median particle size of less than about 50 microns and having a particle span of about 1.4 or less. The filter blocks of the present invention can be used to make a filter for filtering liquids and more specifically, for providing potable water. The filter particles may be mesoporous. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.

A filter device for filtering liquid passing there through, the filter device comprising a housing (101) for securing to a source (3) of the liquid and having a liquid accommodating duct (10) there through for accommodating the liquid. The duct (10) extends from an upstream end for communicating with the liquid source (3), to a downstream end terminating in an outlet (14) through which the liquid is discharged from the filter device, wherein the filter device incorporates a filter element (110, 111, 113) for substantially removing bacteria from the liquid passing there through.

The invention discloses a polytetrafluoroethylene microporous composite membrane haze prevention mask. Bamboo carbon cloth is adopted as the outer surface layer, the polytetrafluoroethylene microporous composite membrane is adopted as the middle layer, a nanometer silver fiber fabric is adopted as the inner layer, a arch-shaped nose cushion made of memory foam material, the outer surface layer and the inner layer are tailored and sealed into a three-dimensional body, and the middle layer is folded into a three-dimensional body instead of being tailored. The mask is high in air permeability and low in ventilation resistance, can filter out bacteria and fine particulate matter with the diameter larger than 0.45 micron or 1.0 micro in air, plays a role in bacteria removal and haze prevention, and plays a role in toxin prevention, mildew prevention and odor prevention, and the dust removal effective rate can reach more than 95%.

The invention provides a xylitol production method by utilizing corn cobs or agro-forestry waste, such as, stalks, as raw materials. The method includes the pretreatment of the raw materials, the diluted acid treatment of the raw materials and the solid-liquid separation, the ingredients of obtained liquid phase are treated with decolorization, filtration, deacidification and RO concentration, then a yeast is utilized for fermentation so as to obtain a xylitol. A relatively pure xylitol liquid is obtained after the bacteria removal, the concentration and the chromatographic separation of the fermentation liquid, then a solid finished product xylitol is obtained by decolorization, ash removal, concentration, crystallization, separation and drying, and a crystal parent solution returns to the chromatographic separation. In addition, the invention carries out the pulp conditioning of solid phase components which are obtained by the solid-liquid separation after acidolysis, then the solid phase components are used for ethanol fermentation after the enzymolysis; the lignin residue which is obtained after the filtration of the products of the enzymolysis can be taken as fuel or be used for the development of the deep-processed products of the lignin. The xylitol production method of the invention can greatly reduce the cost of the industrial production of the xylitol and lead all the components of the raw materials to be utilized effectively.

The invention provides a bacterial strain capable of generating alginate lyase and a fermentation method thereof. The bacterial strain capable of generating alginate lyase provided in the invention is classified as Tamlana sp., named as ZJU HZ22, assigned with the accession number of CGMCC No. 5324 and preserved on Oct. 14th, 2011. The bacterial strain is capable of background expression of alginate lyase under the condition of no inducing substrate and can improve the level of expression through stimulation of a substrate. The fermentation method provided in the invention is simple; the alginate lyase ALG22 generated by the bacterial strain CGMCC No. 5324 is lyoenzyme and has striking salt tolerance; fermentation broth of the alginate lyase can obtain substantial and stable enzyme activity after simple bacteria removal and can both be directly used in degradation of alginate and be easily further separated and purified; so the alginate lyase has application potential in degradation of alginate and preparation of alginate-derived oligosaccharide.

An airborne-bacteria filter arrangement is used with an apparatus that has an internal airflow. The airflow passes through a fibrous filter arrangement that has, on its fibres, a highly toxic bacteria-killing substance which entraps and kills bacteria in the airflow. A charcoal-infused filter removes the toxic substance from the airflow, and further filters can effuse beneficial substances to the airflow. The filter arrangement is sealed from germ intrusion. The filter arrangement is used in hand dryers and other apparatus such that the airflow can be sterilised to the extent of achieving 100% bacteria removal.

The invention discloses an ecological detergent prepared from pure natural plant raw materials, and belongs to the field of washing products. The ecological detergent disclosed by the invention is prepared from the following raw materials in parts by weight: 8-57 parts of plant raw materials, 2-5 parts of plant thickener, 0.05-0.35 part of leavening agent and 27-180 parts of water, wherein the plant raw materials comprise one or more of citrus peels, pomelo peels, orange peels and citrus limon, longan leaves, stems or leaves of banana trees, carambola leaves and sour carambola fruit. The ecological detergent is unique in formula and wide in sources of the materials and has a relatively strong decontamination effect as well as multiple functions of sterilization, bacteria removal, protection, skin nourishment and the like.

Compositions containing chlorine and / or bromine in combination with chlorine dioxide are found to be synergistic against non-tuberculosis mycobacterium such as Mycobacteria chelonae.

The present invention relates to an air decontamination equipment, from both odours or pollutants, and bacterial or viral loads. More particularly, the present invention relates to a decontaminating equipment (1) for the treatment of air, comprising a shell (2) which is divided in a first and a second compartments (3, 4), which are arranged in a contiguous position in any sequence order, in the second of said compartments (3, 4) suction means (6) being arranged, in which one of said first and second compartments (3, 4) is for the antibacterial / antiviral treatment of air, and one of said first and second compartments (3, 4) is for the photocatalytic treatment of air, and comprises UV illumination means (9), said first and second compartments (3, 4) comprising a material with antibacterial and antiviral activity and a material with photocatalytic activity, respectively.

The invention discloses a traditional Chinese medicine disinfection spray and a preparation method thereof, relates to the technical field of traditional Chinese medicines and mainly aims to solve the problem of low disinfection capability of the disinfection spray in the prior art. The effective components for preparing the spray comprise the following raw materials in parts by mass: 11-23 parts of coptis chinensis, 9-21 parts of cordate houttuynia, 14-28 parts of persicaria perfoliata, 10-25 parts of honeysuckle, 6-18 parts of senecio scandens, 17-29 parts of radix sophorae flavescentis, 8-26 parts of dandelion, 17-31 parts of plantain herb, 7-22 parts of calamus, 12-27 parts of garlic, 10-24 parts of peach leaves, 13-25 parts of radix asparagi, 6-23 parts of pine needle, 11-29 parts of fructus cnidii, 7-26 parts of radix stemonae, 12-28 parts of fructus crataegi, 7-25 parts of mint, 9-25 parts of radix angelicae, 8-25 parts of angelica sinensis and 12-27 parts of liquorice. The prepared traditional Chinese medicine disinfection spray has excellent bacteria removal effect; the sterilizing rate against the bacteria in the air reaches over 99%.

The invention provides a recrystallization production method for citric acid, which comprises the following steps that: citric acid fermented liquor is subjected to bacteria removal and impurity removal to form clear citric acid liquor; the clear citric acid liquor is subjected to primary condensation and crystallization to form crude citric acid crystals; the crude citric acid crystals are dissolved, decolorized, desalted, secondarily concentrated and crystallized to obtain citric acid crystals; and the secondary concentrated and crystallized mother liquor returns to the primary condensation process. The method has the advantages that the method has stable product quality, high product yield, and little accessory consumption, concentrates byproducts into sugar feed, reduces the discharge amount of CO2, and has no wastewater discharge, and the like.

The invention discloses an air purification system, which is characterized by also comprising at least one air quality detecting probe, a relay set and a control centre, wherein the air quality detecting probe is used for detecting the air pollution degree of a scene; the relay set is connected with a circuit structure of a purifier monomer and used for controlling the operation of the purifier monomer; and the control centre is used for receiving a signal detected by the air quality detecting probe and controlling attracting of the relay set. The invention can judge the fluctuation condition of the people flow-rate in public areas according to the instant detection of CO2, analyze the data and realize configuration synchronous adjustment so as to achieve the effect of equalizing purified air. The invention has the advantages of dust reduction, bacteria removal, low cost, low energy consumption and less maintenance expense. The invention is beneficial to arrange on the existing ventilating air-conditioner system due to nearly no wind resistance and no noise, and is unnecessary to change or clear due to no accumulated dust, thereby having no secondary pollution.

Disclosed is a filter for purification of water having a filter medium; and a metal or an alloy thereof which has oligodynamic effect wherein said metal or an alloy thereof is in the form of fibres. A preferred metal is selected from silver, copper, zinc, gold or aluminium. It is preferred that aspect ratio of the fibres is range of 3 to 200. The disclosed filter on an average provides at least 5 log10 removal each of bacteria and virus from water.

The invention discloses divalent egg yolk antibodies of type I and novel duck hepatitis as well as a preparation method and an application thereof. The preparation method comprises the steps of high-immunity egg collection, high-immunity egg sterilization, fat removal with sodium alginate, precipitation with ammonium sulfate, ultrafiltration membrane concentration and purification of the antibodies, bacteria removal by inactivation and the like. The research results show that the divalent egg yolk antibodies of type I and novel duck hepatitis, which are obtained through grease removal by adopting sodium alginate and precipitation by adopting ammonium sulfate, have high purity, high titers, small side effects and obvious treatment effects and can be used for simultaneously controlling type I and novel duck hepatitis viruses safely and conveniently.

The invention discloses a production method and a culturing device of high-vigor nitrifying bacteria products. The production method comprises the steps of: placing an adsorption device used for growth and adsorption of nitrifying bacteria in the culturing device, wherein the total volume of the adsorption device takes up 20%-30% of the effective volume of a container; adding a culture medium in the culturing device; boiling; adding a nitrifying bacteria seed liquid; opening an aerating system and a temperature control system; dividing the culture medium into three different components after culturing continuously for 120 h; respectively inputting the three components into a culturing container through a four-way tube; controlling hydraulic retention time (HRT) to be equal to 30 h; taking out the adsorption device and drying the nitrifying bacteria on the adsorption device to form finished products; then placing a new adsorption device into the culturing container and then circulating to perform flowing culture and drying collection on the nitrifying bacteria; and then replenishing nitrifying bacteria strains in the culturing container after multiple circulations. The production method can be used to culture two nitrifying bacteria at the same time and is favorable for solving the problems of product suppression, precipitation formation under interaction of culture media, bacteria removal of a filtering membrane and the like.

The invention provides a production process of a microbial preparation, which is used for baking tobacco leaves and aims at improving the quality of availability of the tobacco leaf industry, and the production process belongs to the technical field of the production processes of the microbial preparations. The invention adopts the technical scheme as follows: using a high-temperature bacterial strain separated by the method of performing high-temperature separation on surface microbes on the tobacco leaves through a pure tobacco leaf leaching solution solid flat plate, inoculating the high-temperature bacterial strain into a fermentation culture medium which is cooled down to 60 DEG C after performing sterilization at the temperature of 121-126 DEG C and the pressure of 0.11-0.13MPa for 25-35 minutes, containing 8 plus or minus 5% (by weight / volume) of the waste tobacco leaves after smashing treatment and 92 plus or minus 95% of tap water, do not adjusting pH value, stirring and fermenting for 48 hours at 120-130rpm, maintaining the fermentation temperature at 45-55 DEG C, adding 0.1% of manganese sulfate after filtration and bacteria removal 2-4 hours before the end of the fermentation, stirring continuously till the end of the fermentation, placing into a pot, directly sub-packaging in a container, and sealing, wherein fermentation fluid is the microbial preparation for baking the tobacco leaves. Most of the high-temperature bacillus preparation prepared by the process can form spores, and the microbial preparation can be preserved for a long time and is environment-friendly and pollution-free.

The present invention discloses a process for extracting chlorogenic acid and a dye from honeysuckle leaf, wherein medicinal chlorogenic acid, flavones for dyeing, tannins for dyeing, and chlorophyll for dyeing are mixed with a mixed polar solvent comprising ethanol and water according to a ratio of 1:4 by using honeysuckle leaf, extraction is performed at a low temperature of 25-55 DEG C, and impurity bacteria removal with micro-filtration according to mass grading tubes, ultra-filtration nano-filtration separation, concentration, and low temperature vacuum drying are sequentially performed to respectively obtain the honeysuckle drug raw material chlorogenic acid and the honeysuckle leaf plant standard ultrafine powder dye. According to the present invention, the process is the low temperature operation process, such that the problem that the chlorogenic acid is generally instable at the high temperature is solved, and the yield and the quality of the chlorogenic acid are improved.

The invention provides a manufacturing method for solving sedimentation of the rice wine in shelf life, comprising the following steps: original wine liquid clearing, freezing, heat preserving, filtering, encapsulating and sealing, sterilizing and packing; in the freezing process, the original wine is refrigerated through a liquid quick cooler, the wine flow is adjusted to ensure that the outlet temperature of the wine reaches minus 3 to minus 6 DEG C before entering a stainless steel insulation barrel for heat preservation for 48 to 96 hours; the fine rice wine is filtered by a liquid cross-flow membrane bacteria removal and microfiltration system with the entrapped grain size of 0.1 to 0.2 mu m; then the fine rice wine is water-bathed and sterilized. The invention has the benefits that the sediment can be pre-removed by freezing and heat preserving for a certain period before filtration; the precursors of large-particle high polymer protein existing in the fine rice wine undergoing freezing and heat preserving can be removed by the microfiltration techniques; therefore, the rice wine prepared by the method in the invention is light in color, is clean, transparent and glossy; during the shelf life of the rice wine, only a slight trace of sediment exists at the bottoms of bottles or jars; the flavour of the rice wine is not changed fundamentally.

The invention relates to a method for extracting human serum albumin from plasma and increasing the yield. By adoption of the method, the problems of extracting recovered human serum albumin from the plasma and increasing the yield can be effectively solved. The adopted technical scheme is as follows: the method comprises the following steps of: combination and melting of the plasma, preparation and pressing filtration of components I, II and III, preparation and pressing filtration of a component IV, preparation and pressing filtration of a component V, precipitation, dissolving and filtration of the component V, refined purification of the component V, ultrafiltration dialysis and concentration, preparation, pasteur inactivation, bacteria removal and filling, incubation and verification; the preparation and pressing filtration of the component IV comprise the following steps of: adding physiological saline with the temperature of 0 DEG C and the volume of 1 / 10 of that of the supernatant of the prepared components I, II and III, using acetate buffer solution with pH of 4.0 to adjust the pH value of the solution to 5.80-5.90, adding alcohol with the temperature of minus 15 DEG C and the volume concentration of 95%, and enabling the final volume concentration of the alcohol to reach 40%. The method has the advantages that the production process is smoother and simple, the yield of the human serum albumin is increased and the economic and social benefits are large.

The present invention provides an air bacteria removal device in which leakage of electrolytic water to the outside is eliminated as much as possible and in which maintenance can easily be performed, the air bacteria removal device comprises a main body including a water storage section having a sealed or semi-sealed structure in which the electrolytic water is stored, and a water absorption member for supplying the electrolytic water from the water storage section to an air-liquid contact member by use of a capillary phenomenon, the air-liquid contact member and the water absorption member are integrated and detachably attached to the main body, the water absorption member attached to this main body enters the water storage section, and is submerged into the electrolytic water, and the water storage section is brought into a sealed or semi-sealed state.

The invention discloses antisepsis and anti-inflammation toothpaste without preservative and a preparation method thereof. Disinfection liquid comprises the following constituents by weight percentage: 7 to 10 percent of calcium bicarbonate, 5 to 10 percent of glycerinum, 8 percent of propylene glycol, 1 to 3 percent of sodium lauryl sulfate, 15 to 20 percent of sodium carboxymethyl cellulose, 5 to 10 percent of notogineng extract, 0.5 to 1.5 percent of piperitol, 1 to 5 percent of summer grass extract, 4 to 8 percent of algal polysaccharides, 3 to 6 percent of chitin, 0.01 to 0.05 percent of edible essence, and purified water in balancing amount. The toothpaste contains natural plant and marine organism constituents, does not contain preservative, has the effects of tooth whitening and oral bacteria removal, can improve the antiallergic capacity of teeth, prevents periodontitis, swelling and aching of gum, dental plaque and the like, mildly treats the oral environment, does not injure the teeth, has natural constituents, and is safe and effective.

Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous wood activated carbon filter particles and particles selected from the group consisting of mesoporous wood activated carbon filter particles coated entirely with a cationic polymer, mesoporous wood activated carbon filter particles partially coated with a cationic polymer, and mixtures thereof. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL / g and about 2 mL / g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.4 mL / g and less than about 3 mL / g, and a ratio of the sum of the mesopore and macropore volumes to the total pore volume of the filter particles is greater than about 0.3. The filter removes bacteria and viruses from the water at a level of Filter Bacteria Log Removal of greater than about 2 logs and a Filter Viruses Log Removal of greater than about 1 log.

A method for producing whey beverages mainly includes: A, checking raw whey; B, purifying the raw whey; C, using an ultrafiltration membrane to filter the raw whey purified in the step B to obtain whey; D, adding lactose hydrolase into the whey obtained in the step C for hydrolysis; E, subjecting part of the whey hydrolyzed in the step D to membrane filtration and bacteria removal; F, adding ingredients into part of the whey, which is hydrolyzed in the step D but not subjected to membrane filtration and bacteria removal in the step D; G, sterilizing the whey processed in the step F at a high temperature prior to cooling; and H, mixing liquor obtained in the step E and liquor obtained in the step G. The content of heat-sensitive substances in the whey beverages produced by the method is high in retention rate, and the yield is increased.

The invention relates to the technical field of sterilized daily chemical products, in particular to a shoe odor and bacteria removal composition and a preparation method thereof. According to the composition, key components such as bicarbonate, cyclodextrin, organic acid salt and a positive ion sterilizing agent are matched, the matching ratio of the components is optimized, and particularly, theratio of the cyclodextrin to the positive ion sterilizing agent is optimized, so that the shoe odor and bacterium removal composition has a rapid sterilizing effect, also has a long-effective antimicrobial function and is low in stimulation performance and toxicity. The cyclodextrin is provided with a safe and high-cost-performance odor removal component and contains a cavity structure capable ofcontaining some odor molecules. The bicarbonate can effectively neutralize shoe odor and has high safety. On one hand, the organic acid salt can neutralize odor, on the other hand, a neutralized product of the organic acid salt and the odor helps to restrain propagation of bacteria and fungi in a shoe, and the organic acid salt used by the composition and the neutralized product of the organic acid salt and the odor do not have distinct odor. The positive ion sterilizing agent has the advantages of high efficiency and low toxicity.

This invention discloses a natural material for purifying, mineralizing and magnetizing water. The natural material can be placed in portable cups, or placed in the specific pipelines of water wells, thus is practicable and convenient. The natural material can be made into different water purifiers to reassure the drinking water quality of different zones, and has the functions of high-efficiency purification, mineralization, magnetization and sterilization. The main raw materials are opal, Qicai stone and some other mineralizing materials that can effectively remove bacteria, carcinogens and harmful heavy metals. The mineralizing materials can release metasilicate, I2 and Zn that are good to human bodies.

The invention relates to marine organism antibacterial fabric softener, which is applicable to post-wash caring of various clothing and enables bacteria removal and softening to be simultaneously completed. After the marine organism antibacterial fabric softener is used, clothing is as bright as new, soft, smooth, neat and tight-fitting and has an antistatic effect. The marine organism antibacterial fabric softener added with marine organism antibacterial ingredients is nontoxic, non-irritant and capable of efficiently removing bacteria on the clothing, such as staphylococcus aureus, escherichia coli and candida albicans. The marine organism antibacterial fabric softener has the advantages that the softener is harmless to fabrics and highly stable, the softener made according to a phosphate-free aluminum-free neutral formula is environmentally pollution-free and harmless to skin, and the softener is simple in production process, low in cost and the like. The formula of the marine organism antibacterial fabric softener includes (by weight) 6.0-8.0% of marine organism prebiotics, 0.5-1.0% of bacitracin, 8.0-12.0% of palm anodic ester-based quaternary ammonium salt, and the balance of pure water.