124 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 invention discloses milk and a method used for producing the milk. During the process of the method, the temperature under which the milk is heated is not more than 55 DEG C; the method sequentially comprises the steps as follows: 1) raw material milk is centrifuged to remove the bacteria; 2) the milk is standardized; 3) the milk is heated and degasified in vacuum; 4) the milk is separated as cream and defatted milk; 5) the defatted milk is micro-filtrated by film so as to remove the bacteria. The key point of the method is that a centrifugal bacteria removing machine and micro-filtration bacteria removal by ceramic film are used to remove 99.995-99.999% of bacteria in the milk, thus gaining the final milk product containing the bacteria less than 5/100,000 of that in the raw material milk. The method increases the homogenous pressure so as to reduce the homogenous temperature when producing the lipid-contained milk; the milk produced by the method has the same safety performance with pasteurized milk, almost completely saves the biological activity of functional components such as immunoglobulin, lactoferrin, lactoperoxidase and the like and has excellent flavor.

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.

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 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.

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 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.

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 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 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.

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.

The invention relates to a large tank liquid making process of red yeast yellow rice wine; glutinous rice, Japonica rice and sorghum are used directly as materials, and the materials are subjected to the processes such as crushing, spray liquefying, bilateral fermentation, plate frame press-filtering, ripening and scent enhancement, ultrafiltration and bacteria removal to make the red yeast yellow rice wine; long-chain starch in the materials is controlled to suitably decompose and liquefy by means of superheated steam spraying assisted by high-temperature-resistant Alpha-amylase liquefying process, and liquid bilateral fermentation is carried out in synergy with brown rice bud powder, red yeast rice powder and yeast; the technical bottlenecks that a product made by liquid fermentation has poor taste and single scent are overcome; from the materials, tannin-containing sorghum is suitably added, Lactobacillus brevis is added in post-fermentation, slight water taste of the product is eliminated, and the body of the wine is full; a wine sample is subjected to ripening and scent enhancement in synergy with ozone, tangerine peel and licorice root soaking and variable frequency ultrasonic, the peculiar odors such as yeast odor and enzyme odor are eliminated, and the wine is fragrant and full in taste.