46 results about "PH increase" patented technology

A device comprising an extracellular matrix having an internal pH between 4.0 and 6.0 is discussed. This matrix contains heparin or a heparin-related compound such as heparan sulfate. Preferably the matrix also contains fibronectin or a fragment thereof. The matrix will bind to a protein having a pH dependent binding to heparin such as VEGF, preferably VEGF 121 or VEGF 165. The device will release the protein as the pH increases to physiological pH, such as 7.0 to 7.5. The device can be used to deliver a drug to a specific site. For example, with VEGF to a site in need of angiogenesis.

Disclosed are hydrophilic functionalized silica compositions that are stable and do not show significant pH increases upon heat sterilization. Also provided are methods to make hydrophilic functionalized silica compositions by reacting acidic silica particles with hydrophilic organosilanes. Further provided are methods of separating components in a mixture using hydrophilic functionalized silica compositions.

The invention discloses parachlorella kessleri with the tolerance to a high pH and culture and applications of parachlorella kessleri. A parachlorella kessleri mutant strain FSH-Y3 with the tolerance to the high pH is obtained through the method adopting ultraviolet mutagenesis and acclimation screening utilizing step-by-step pH increase, the classification name is Parachlorella Kessleri, and the parachlorella kessleri strain FSH-Y3 is prepared in the China General Microbiological Culture Collection Center (CGMCC) on May 26, 2014, and is assigned with the accession number of CGMCC No.9238. The bred parachlorella kessleri FSH-Y3 can well absorb and utilize carbon dioxide at the high pH, and rapidly grow and reproduce, therefore, the problems that the existing parachlorella kessleri only can grow at the neutral pH, but the solubility of carbon dioxide is low, and the carbon dioxide fixing efficiency is low under the neutral pH condition are solved.

The invention provides a rapid and efficient method and assay for monitoring nitrogen uptake by a plant using a pH indicator. The plant is exposed to medium comprising one or more sources of nitrogen, such as nitrate or ammonia, and a pH indicator. The plant is exposed to the source of nitrogen for a time sufficient for it to be taken up by the plant. As nitrate is taken up from the medium, the medium becomes more basic, that is the pH increases. Conversely, as ammonia is taken up from the medium, the medium becomes more acidic and the pH decreases. The change in the pH of the medium may be optically detected and correlated to the amount of nitrate or ammonia remaining in the medium. Accordingly, the amount of nitrate or ammonia taken up by the plant or remaining in the medium may be determined.

A method for removing metal contaminants from water uses lignin derivatives, such as lignosulfonates and kraft lignin, a coagulant, such as a metal salt, and a pH-increasing composition. The lignin derivative is dispersed in the contaminated water, the coagulant is added and the pH is adjusted as required to cause flocculation. A sludge is formed that contains the metals and that is separated from the treated water by filtration. Related methods are used to reduce the leachable metal content of contaminated soils. The invention also provides a composition for stabilizing the metal contaminants in soil, comprising lignin derivatives, a coagulant and a composition for increasing the pH. The mixture is blended with the contaminated soil, reducing its leachable metal content.

A pH increasing material is placed in contact with the surface of an initial comminuted meat product. This contact with the pH increasing material increases the pH of the initial meat product to produce an intermediate meat product. The method also includes the step of removing the pH increasing material and preferably applying a driving force to the intermediate, pH increased meat product. The method may also include placing a pH lowering gas at a neutralizing pressure in contact with the surface of the intermediate meat product to decrease the pH of the meat product back to a final level.

A method of processing a copper-containing source material is provided whereby an aqueous acidic leach solution of the copper-containing source material is formed and then contacted with a pH increasing agent to thereby cause the precipitation of a copper-containing intermediate. The copper-containing intermediate can then be collected and exposed to a high temperature treatment, such as would be encountered in smelter or converter operations.

The invention discloses a culture method of microalgae. The method comprises the following steps: (1) conducting domestication and culture on an original seed liquid of microalgae in autotrophic growth conditions by using a mode of increasing the pH value step by step, wherein the initial pH value is 8.0-9.0, which is increased by 2-8 times with pH increasing by 0.5-2 every time; and culturing the microalgae under the same conditions for 24-96 h after each time of pH value increasing, and domesticating and culturing to reach a pH value of 11.0-12.0, so as to obtain a microalgae liquid with high pH tolerance; (2) inoculating the domesticated microalgae liquid to a heterotrophic medium with pH value of 11.0-12.0 and cultivating for 10-24 h, then adjusting the pH vale of the culture medium to 7.0-8.0 and carrying out further culture; and (3) when the microalgae growth achieves a stable period, stopping the cultivation and harvesting microalgae cells. The method can effectively inhibit the growth of infectious microbes in microalgae culture, does not require addition of antibiotics, does not have adverse influences on the quality of microalgae, and is safe, reliable and low in price.

A washing machine includes a washing tub, a water tub, a drive unit, a feed-water unit, a drain unit, a water softening unit, a pH increasing unit, a pH decreasing unit, and a control unit. The water softening unit is disposed between the feed-water unit and the water tub, and is filled with a weak acid cation exchange material having weak acidic cation exchange groups with a pH from 7.5 to 14 at point of zero charge. The pH increasing unit increases the pH of washing water, and the pH decreasing unit decreases the pH of the washing water. The control unit performs the following operations: controlling the pH increasing unit to increase the pH of the washing water while the washing water is being fed; introducing the washing water with the increased pH to the water softening unit to decrease the hardness of the washing water; introducing the washing water with the decreased hardness to the washing tub; controlling, after the washing water is fed, the pH decreasing unit to decrease the pH of the washing water to a value of 5.5 to 7.0; and introducing the washing water with the decreased pH to the water softening unit.

Carbon monoxide and an ammonia-based pH increasing material are both applied to a highly comminuted meat product. The carbon monoxide and ammonia-based pH increasing material may be applied by sparging the materials into the highly comminuted meat product through a suitable sparging device. The carbon monoxide may be applied to the highly comminuted meat product separately from the ammonia-based pH increasing material, or the two materials may be combined and applied to the highly comminuted meat product together. When applied separately, the carbon monoxide and ammonia-based pH increasing materials may be applied to the meat product through a multi-stage sparging device. Also, when the treatment materials are applied separately either material may be applied first followed by application of the other material.

A non-steeped corn blend that can be used as a substitute for corn masa in food applications. The non-steeped corn blend comprises: (1) non-steeped non-gelatinized corn material, (2) non-steeped pre-gelatinized corn material, and (3) pH increasing agent. The non-steeped corn blend can be used to make masa-type dough and food products. In another aspect, the present invention provides an article of commerce that comprises directions for making a mesa-type dough or food product.

This invention provides a method for optimal low cost stabilization of incinerator ash subject to acid and water leaching tests or leach conditions by addition of pH increasing agents, such that leaching of lead and cadmium is inhibited to desired levels. The resultant ash after stabilization is suitable for disposal as RCRA non-hazardous waste.

The invention relates to a process for the production of a liquid coffee concentrate that has an improved storage stability at ambient temperature. The process comprises treating a coffee concentrate to a heat treatment and a pH increasing step.

An enclosure treatment method includes introducing a pH increasing material into an enclosure adapted to contain meat products. Introducing the pH increasing material creates a desired pH increasing gas content in the atmosphere within the enclosure. The method also includes the step of maintaining the pH increasing gas content in the enclosure atmosphere while meat products are contained in the enclosure. The pH increasing gas in the enclosure atmosphere is absorbed into water in the enclosure to increase the pH of the water. The water affected in the present treatment process may be moisture collecting on various surfaces within the enclosure, or may be moisture within the meat products being stored in the enclosure. In any event, the increased pH is inhospitable to most microbes and reduces or suppresses microbe activity in the water either by retarding propagation or killing microbes outright.

Disclosed is a new method, and a system, for increasing the pH of a composition applied on teeth and/or gums. The composition is gelable under the influence of a pH change. The pH change typically is a pH increase in the event of a direct pH-triggered gelation. The pH change typically is a pH decrease in the event of gelation induced by ions, such as calcium ions, released from a pH-sensitive carrier. The device comprises a dispensing unit for the composition, a distal end of which is adapted to apply said substance onto teeth or gums. The device further comprises an electrode system comprising first and second electrodes, the first electrode being adapted to be held against the composition at a location at or near teeth or gums, and the second electrode being adapted to be held against the composition at a location away from teeth or gums, The electrode system is adapted so as to provide an electrical potential difference of 1.5 to 10 Volt between the electrodes.

There are provide a liquid composition for forming a silicon oxide-based cured coating film by the sol-gel method, the liquid composition having excellent storage stability and being capable of forming a coating film excellent in durability, in particular, alkali resistance even after long-term storage. A liquid composition applied on a surface of a substrate and cured by heating to form a coating film, contains: a matrix component containing a hydrolyzable silicon compound whose content is 20 to 60 mass % as a SiO₂ content when silicon atoms contained in the matrix component are converted into SiO₂ to the total solid content amount in the liquid composition; a functional component containing an ultraviolet absorbent and an infrared absorbent; water; and an acid thermally decomposing at 80° C. or higher and a temperature of the heating or lower, wherein a pH increases between before and after the thermal decomposition of the acid.

The invention discloses a catalytic micro-electrolysis material used in treatments of heavy metal sewage and other wastewater, and a preparation method thereof. According to the invention, iron powder with a particle size smaller than 40 meshes and a weight percentage of 65-85%, graphite powder with a particle size smaller than 80 meshes and a weight percentage of 7-25%, manganese dioxide with a particle size smaller than 100 meshes and a weight percentage of 3-10%, and a catalyst with a particle size smaller than 120 meshes and a weight percentage of 0.01-0.09% are uniformly mixed; water is added, and the mixture is prepared into a granular material in a granulation machine; the material is naturally dried; and the material is heated while being isolated from air, such that the catalytic micro-electrolysis material is obtained. The catalytic micro-electrolysis material provided by the invention has high activity, high specific surface area, and galvanic cell and alkaline cell reaction effects. With the catalytic micro-electrolysis material, wastewater pH increase and electrolysis effect weakening can be effectively prevented, and material surface passivation and caking problems can be completely solved.

This invention provides a method for stabilization of hexavalent chromium and trivalent chromium bearing wastes, materials, and contaminated soils subject to acid and water leaching tests or leach conditions by addition of water solution, hexavalent chromium reducing agent, precipitating and pH increase agent, and chromium reversion control and stabilizing agents such that leaching of chromium is inhibited to desired levels and resists reversion to hexavalent chromium form over time. The resultant material, contaminated soil and/or waste after stabilization and reversion control is deemed suitable for on-site reuse, off-site reuse or disposal as RCRA non-hazardous waste.