54 results about "Pro-oxidant" patented technology

A nutrition bar comprising about 10% wt or more of soy and/or rice protein, at least one transition metal or transition metal compound, and about 2% wt or more of a humectant, and wherein the at least one transition metal or transition metal compound is in a substantially water insoluble form at 20° C. or the nutrition bar has an Aw of 0.45 or less or about 1% wt or more of the soy and/or rice protein is in the form of nuggets and the humectant is selected from polyols. The bars have elevated levels of soy and/or rice protein, yet do not suffer unacceptable from a deterioration in taste or other organoleptic properties over time. In other aspects, a nutrition bar or other food which incorporates pro-oxidants and/or polyunsaturated fatty acids or their sources in encapsulated form, especially as microcapsules. The pro-oxidants may be metal salts such as copper, manganese, iron and/or zinc salts. Sources of omega-3 fatty acids include fish oil. Processes for preparing the polyunsaturated fatty acid capsules are also disclosed. The polyunsaturated fatty acid capsules/microcapsules are prepared by forming an emulsion of the unsaturated fatty acid with a carrier, spray drying the emulsion to form a powder and encapsulating powder, especially with a fluid bed. The invention is especially useful for encapsulating polyunsaturated fatty acids, or oil sources thereof, most preferably omega-3 and omega-6 fatty acids, such as arachidonic acid, docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), lineoleic acid, linolenic acid (alpha linolenic acid), and gamma-linolenic acids, fish oil, and oil sources of C18:2 and C18:3 fatty acids such as canola oil, soybean oil or blends thereof.

Triglyceride oil derived from marine sources, mammalian and fish, is treated with a silica at relatively low temperature under vacuum and is then further treated with a bleaching clay under vacuum and at higher temperature. The silica and the bleaching clay are then separated from the oil. The oil treated by this method is essentially free of proteinaceous materials, phosphatides and mucilage, pro-oxidant metals and very low in colored compounds, and is suitable for deodorizing. The deodorized oil is completely bland, unchanged in the concentration of the long-chain highly unsaturated fatty acids (EPA, DPA and DHA), very low in color, peroxides and secondary oxidation products, free of pesticides and has very good flavor stability. The method avoids the use of any chemicals, such as in the acid and base treatments required in conventional degumming and alkali refining of oils of marine origin. This avoids the formation of artifacts in the oil and trace contamination with chemicals. It also reduces the number of process steps required to produce deodorized food oil from marine sources, which is advantageous in respect to oil quality, process losses and processing costs. The method is especially environmentally advantageous, since it avoids the need for soapstock and waste water processing entirely. Refined oil produced by the method is useful as a nutritional supplement and in methods of therapy or medical treatment.

The invention discloses degradable plastic and a preparation method thereof. The degradable plastic is made from ultrafine starch, ultrafine plant powder, synthetic degradable resin, synthetic resin, plasticizer, pro-oxidant, compatibilizer, lubricant, photosensitizer, heat sensitizer, and degradation control agent. The preparation method of the degradable plastic includes the steps of heating up a container to 70-80 DEG C; adding the ultrafine starch and the ultrafine plant powder into the container, respectively adding the plasticizer, the pro-oxidant, the compatibilizer, the degradation control agent and the synthetic resin, and mixing well; adding the synthetic into another container, sequentially adding the photosensitizer, the heat sensitizer and the lubricant at room temperature, and mixing well; and mixing well the materials and holding the temperature at 100-140 DEG C for each zone to obtain degradable plastic particles. The degradable plastic made by the preparation method has the advantages of thoroughness in degradation, fast degradation, low production cost and the like.

The invention discloses a master batch capable of fully and biologically degrading a plastic film and a preparation method thereof, and belongs to the field of high molecular films. The formula of the master batch comprises the following materials in parts by weight: 100 parts of starch, 2-9 parts of coupling agent, 8-18 parts of dispersing agent, 8-25 parts of polycyclolactone, 1-50 parts of polylactic acid, 8-15 parts of poly (hydroxybutyrate-hydroxyvalerate) (PHBV), 10-25 parts of plasticizer, 0.15-1.0 part of anti-tackiness agent, 0.15-1.2 parts of pro-oxidant and 1-15 parts of chemical precipitation promoter. The preparation method of the master batch comprises the three steps of: thinning the starch; mixing; and forming. The product provided by the invention has the advantages of high starch content, being a fast-growing and renewable resource, rich resource, low unit cost, high substitutability, obvious economic benefit and ecological benefit and capabilities of reducing the content of polycyclolactone, increasing polylactic acid and poly (hydroxybutyrate-hydroxyvalerate) (PHBV), improving product performance and meanwhile reducing cost.

The invention relates to preparation methods of glyoxylic acid L-menthyl alcohol ester and a monohydrate of the glyoxylic acid L-menthyl alcohol ester, and belongs to the technical field of fine chemical industry. The glyoxylic acid L-menthyl alcohol ester is prepared by the following steps: reacting L-menthol with monohalogen or dihalogen acetyl halide or anhydride to generate monohalogen or dihalogen acetic acid L-menthyl alcohol ester; and reacting in the presence of a pro-oxidant to obtain the glyoxylic acid L-menthyl alcohol ester. The monohydrate of the glyoxylic acid L-menthyl alcohol ester is prepared by the following steps: cooling and diluting a reaction solution using monohalogen acetic acid L-menthyl alcohol ester as a raw material; treating by using a dimethylsulfoxide (DMSO) solution of P2O5 and triethylamine to obtain the glyoxylic acid L-menthyl alcohol ester; washing, extracting and concentrating a reaction solution using dihalogen acetic acid L-menthyl alcohol ester as a raw material to obtain the glyoxylic acid L-menthyl alcohol ester; and treating by using sodium hydrogen sulfite and formaldehyde to obtain the monohydrate of the glyoxylic acid L-menthyl alcohol ester. The total yield of the glyoxylic acid L-menthyl alcohol ester synthesized by the technology can reach over 72 percent; the total yield of the monohydrate of the glyoxylic acid L-menthyl alcohol ester can reach over 80 percent; the purity can reach over 99.5 percent; the technical process is simple and convenient; the raw materials are available; the yield is high; the product purity is high; and the process is suitable for industrial production.

The invention discloses a method for producing diethylene glycol terephthalate and oxalic acid by degrading the waste polyethylene glycol terephthalate plastic. The method adopts soluble cobalt salt, manganese salt, zirconium salt, cerium salt and bromide and organic base as the catalysts (zirconium salt and cerium salt as the promoters), paraxylene as the pro oxidant, the catalysts and the pro oxidant are mixed with waste PET plastic and indifferent solvent proportionally, and under the conditions of the temperature of 100 to 350 DEG C and the pressure of 0.4 to 4.0 MPa, oxidative degradation is performed to the waste PET by adopting the gas containing oxygen molecule to produce diethylene glycol terephthalate and oxalic acid. The reaction conditions are mild; the reaction rate is high; the conversion rate is high; the method has the social benefit to solve the problem of white pollution; the diethylene glycol terephthalate and oxalic acid, and other fine chemically raw materials can be produced to obtain higher economic benefit; and the method has the advantages that the degradation cost is low, and the added value of the degradation products is high, etc.

A composition comprising a competitive inhibitor and an edible long chain polyunsaturated oil or a blend of edible oils, wherein the edible long chain polyunsaturated oil or the blend of edible oils comprises one or more long chain polyunsaturated fatty acids and a pro-oxidant.

The invention discloses a method for synthesizing 3,3,3-trifluoro methyl propionate. The method comprises the following steps of: putting 3,3,3-trifluoropropene serving as a raw material, methyl alcohol, a Pd/C catalyst and a pro-oxidant in a reaction kettle, after introducing 3,3,3-trifluoropropene and oxygen gas, heating up to the temperature of 70-120 DEG C, reacting for 8-12 hours, cooling and filtering reacted liquid; and adding obtained filtrate, protonic acid and the pro-oxidant into a three-neck flask, heating up to the temperature of 60-80 DEG C, dropwise adding hydrogen peroxide, and reacting for 4-8 hours, thereby obtaining 3,3,3-trifluoro methyl propionate. The method has the advantages that the few synthesizing steps (only two steps) are carried out, the yield is high, and the after-treatment is simple.

The invention discloses a method for preparing glyphosate by PMIDA catalytic oxidation, comprising the following steps: 100-110 parts of PMIDA, 5-12 parts of activated carbon and 0.25-1.80 parts of pro-oxidants are added in 300 parts of water by mass part, the mixture is stirred, and then oxygen-containing gas with 70-100 percent of oxygen mass fraction is vented to the mixture to carry out catalytic oxidation reaction, the reaction temperature is 50-100 DEG C, the reaction pressure is 0.5-2.0MPa and the reaction time is 1-2h; after the reaction is finished, the solution is cooled and filtered to obtain filtrated mother liquid and a filter cake 1, the filtrated mother liquid is utilized in a circulating way, the filter cake 1 is hot-melted after water is added and then is filtered to obtain hot filtrate and a filter cake 2, the hot filtrate is cooled and crystallized to obtain solid glyphosate, and the filter cake 2 is recycled and used repeatedly. The method has stable product quality, can greatly improve utilization rate of oxygen and speed up the reaction rate; the production cost is low, formaldehyde can be effectively degraded, thereby meeting the industrial production requirements.

This invention relates to anti-cancer compounds and to methods for treating or preventing cancer. In one aspect the invention concerns mitochondrially delivered pro-oxidant anti-cancer compounds that generate reactive oxygen species and induce apoptosis of cancerous cells. The delivery moiety can be a lipophilic cation and the pro-oxidant vitamin E analogue, such as α-tocopheryl succinate, α-tocopheryl maleate, α-tocopheryl maleyl amide, or 2,5,7,8-tetramethyl-2R-(4R,8R,12-trimethyltridecyl)-chroman-6-yloxyacetic acid (α-tocopheryloxyacetic acid).

The invention relates to a preparation method of graphene oxide. The method comprises the steps of adding a graphite raw material and a pro-oxidant into aqueous alkali and placing in a sealed container, wherein 1 to 50g of graphite raw material and 1 to 30g of pro-oxidant are added into every 100ml of aqueous alkali; displacing gas in the container with oxygen and charging the oxygen till the pressure is 1 to 20 Mpa, reacting at the temperature of 101 DEG C to 650 DEG C, taking a reacted product out after the reaction is finished, performing solid-liquid separation, washing an obtained solid phase and drying, so as to obtain a graphene oxide solid product, and a liquid phase is recycled and is reused after being treated. By adopting the preparation method, the large dosages of strong acid and strong oxidant can be avoided in the reaction, waste acid and waste liquid are reduced, the extent of the reaction can be adjusted by controlling the reaction temperature and the oxygenating pressure, the structural damage loss of the graphene oxide prepared in a strong acidic condition is effectively avoided, and the tedious separation and washing processes for preparing the graphene oxide are simplified. The aqueous alkali is recyclable, so that the production cost is effectively reduced, the process is simple, the flow is short, and the cost is low.

The present invention provides a technique for recovering gold from a gold iodide liquid waste. The technique comprises a first step of preparation of a mixed system of sodium iodate, sodium iodide and water, a second step of acquisition of a complex salt of Au(I) and Au(I3) under the action of the mixed solution prepared in the first step and a pro-oxidant, a third step of extraction of coarse gold dust, and a fourth step of purification of refined gold dust. In comparison with the prior art, in the above iodide gold-leaching method, a recovery rate of gold and the purity of the recovered gold are greatly raised, meanwhile, the technique is simple in operating process, harms caused by chemical compounds related in the technique to the environment are small, and the cost is low. Therefore, the production cost is reduced and the production efficiency is raised. Moreover, iodine can be recycled and reused, thereby further saving the production cost.

The invention discloses a method for deeply removing organic phosphorus from wastewater. The method comprises steps as follows: under the condition of pH being 7.0-9.0 and in the presence of a catalyst, ozone is added to the wastewater, a pro-oxidant is added optionally, and an oxidizing reaction is performed; a phosphorous removing agent is added for coagulating sedimentation. According to the method, the reaction is performed under the condition of pH being 7.0-9.0, reaction conditions are mild, and operating cost is lower; the wastewater containing organic phosphorus is subjected to oxidation treatment by a strong oxidant, organic phosphorus in the wastewater is effectively removed, and with addition of the phosphorous removing agent, removal rate of organic phosphorus is higher than 99% and total phosphorus in the wastewater can be reduced to 0.3 mg/L or lower; the problems that organic phosphorus is difficult to remove completely and total phosphorus cannot meet the standard are solved, and the method can be widely applied to standard treatment of various kinds of wastewater containing organic phosphorus.

Compounds represented by the following formula I: in which: R1 to R5 can have various meanings of which alkyl, substituted or non-substituted aryl, and m is equal to 0 or 1, X is selected from (CR6R7)n in which n=0 or 1, and CO are disclosed. These compounds are useful as anti-tumor drugs, especially with pro-oxidizing activity.

The present invention provides compositions and related methods for oral health treatment of a subject. Compositions of the invention include an anti-oxidant enzyme, an anti-inflammatory agent, and a pharmaceutically acceptable buffer. In certain embodiments, the compositions are administered to the subjection in conjunction with teeth whitening, oral surgery, oral pathology treatment, endodontic therapy, periodontal therapy, dental restoration, preventative tooth cleaning, or subsequent to a pro-oxidant.

The invention discloses a preparation method of 3,3,3-trifluoromethyl propionate. The method is characterized by adding 3,3,3-trifluoropropionaldehyde dimethoxyethane, a protonic acid and a pro-oxidant to a three-neck flask, raising the temperature to 60-80 DEG C and dropwise adding hydrogen peroxide under stirring to react for 4-8 hours, wherein the mass ratio of 3,3,3-trifluoropropionaldehyde dimethoxyethane to the protonic acid to the pro-oxidant to hydrogen peroxide is 1:(0.04-0.2):(0.04-0.1):(0.1-0.6); the protonic acid is hydrochloric acid or sulfuric acid; and the pro-oxidant is copper chloride, ferric chloride or vanadium pentoxide. The preparation method has the beneficial effects that the preparation method is few in reaction steps and simple in postprocessing; and 3,3,3-trifluoromethyl propionate is prepared only through one-step reaction.

The invention discloses a method for preparing curcumin homogeneous emulsion with a whey protein isolate glycosylation reaction product, and the curcumin homogeneous emulsion. The method includes thefollowing steps: 1) the step of preparing a whey protein isolate glycosylation reaction product; 2) the step of preparing a glycosylated protein-polyphenol complex; and 3) the step of preparing the curcumin homogeneous emulsion. The good emulsifying and interface properties of the glycosylated protein-polyphenol nano-complex can effectively inhibit the coalescence phenomenon between oil droplets,so that the liquid droplets of the emulsion can show good uniformity, and the uniformity of emulsion droplets is directly related to storage stability; and glycosylation reaction can make protein formmore dense and thicker interface layers at the externals of the oil droplets loading active substances, and the interface layers can inhibit the interaction between the active substances and a pro-oxidant (metal ions, free radicals and dissolved oxygen).

The present disclosure provides a pet food, comprising: a) a pet food core, b) one or more active layers surrounding all, or a portion of, the pet food core, and c) an outer layer at least partially surrounding the active layer, wherein the outer layer comprises a fat and/or a pallatant, wherein the active layer may comprise one or more of an antioxidant compound and a pro-oxidant compound. The active layer may be enriched with the pro-oxidant mineral compared to the pet food core, and/or the pet food core and the active layer may have different total concentrations of antioxidant compounds and/or the pet food core and the active layer may comprise different antioxidant compounds and/or the same antioxidant compounds in different concentrations.