2605 results about "Phytic acid" patented technology

The invention discloses a method for producing humic acid and salt thereof through the oxidative degradation of young lignite. The method comprises the following steps: carrying out the oxidation reaction of the lignite containing the humic acid and aqueous hydrogen peroxide solution; after the reaction, obtaining water soluble fulvic acid through centrifugal separation, supernatant filtration, concentration and drying; adding alkali into the fulvic acid to prepare a fulvic acid salt product; carrying out the alkaline extraction and centrifugal separation of the residue deposit of the production of the fulvic acid, adding acid into the supernatant till the pH value is 1 to 2, carrying out a reaction at an increased temperature or room temperature, carrying out centrifugal separation after the reaction is finished, and obtaining purified ulmic acid after precipitation and drying; and directly concentrating and drying the supernatant in the previous step to obtain the humate. The method can improve the yield of the fulvic acid and total humic acid in the young lignite, and simultaneously increase the active group in the humic acid. The method can be used for producing fulvic acid, fulvic acid salt, ulmic acid and ulmic acid salt products. In particular, the method puts an end to the environmental pollution caused by the nitric acid which is taken as an oxidation degradation agent. In addition, the method has a short technological line, low cost, simple requirements on equipment, and moderate conditions. The method which can be applied to the industrialized production has good application prospect.

A method of treating a treatment zone in a well to reduce the permeability of the treatment zone including the steps of: introducing into the treatment zone a water-based treatment fluid comprising: an aqueous silica sol; and a water-soluble chemical activator for gelling the silica sol, wherein the chemical activator is selected from the group consisting of: phytic acid, methylglycinediacetic acid, a water-soluble polyepoxysuccinic acid, salicylic acid, ascorbic acid, tannic acid, and an alkali metal salt or ammonium salt of any of the foregoing; and shutting in treatment zone for at least a sufficient time to allow the treatment fluid to in-situ form a solid gel at a design temperature for the method. Alternatively, a first treatment fluid including the aqueous silica sol and a second treatment fluid including the chemical activator can be introduced into the treatment zone separately, in any order.

Oil seed protein isolates, in particular canola protein isolate, having a decreased phytic acid content is prepared by a procedure in which extraction of phytic acid from oil seed meal is inhibited during extraction of protein from the oil seed meal.

Personal care composition comprising at least one hair growth regulating compound selected from the group consisting of glyceryl dilaurate, apigenin, tetrahydrocurcumin, oleanolic acid, azelaic acid, sulforaphane, canavanine, pyridoxal 5-phosphate, phytic acid, tannic acid, grape seed extract, NG-nitro-L-arginine-methyl ester, benzamidine, sodium butyrate, betulinic acid, polyornithine, polyarginine, fisetin, jasmonates, methyl-jasmonate, cis-jasmone, caffeic acid phenethyl ester, delphinidin, ethyl abietate, esculetin, sorbic acid methyl ester, canaline, N-formyl-methionine, N-formyl-alanine, taurine, palmitoyl carnitine, undecanol, undecylenic acid, rutin, fusidic acid, phenyl pyruvic acid, L-isoleucine, phenyl glycine, silibinin, silymarin, L-ascorbic acid-6-palmitate, N-undecylenoyl-L-phenylalanine, and salts, derivatives and mixtures of any of the foregoing; and a dermatologically-acceptable carrier.

In one aspect, the invention provides a purified and modified phytase enzyme from Escherichia coli K12 appA phytase. The enzyme has phytase activity and improved thermal tolerance as compared with the wild-type enzyme. In addition, the enzyme has improved protease stability at low pH. Glycosylation of the modified phytase provided a further improved enzyme having improved thermal tolerance and protease stability. The enzyme can be produced from native or recombinant host cells and can be used to aid in the digestion of phytate where desired. In one aspect, the phytase of the present invention can be used in foodstuffs to improve the feeding value of phytate rich ingredients.

The invention relates to an anti-rust treating agent for a nickel-plated battery steel shell and a using method thereof. The formula of the agent mainly comprises the following components in percentage by weight: 0.5 to 10 percent of phytic acid, 0.5 to 10 percent of oxidant, 0.1 to 5 percent of auxiliary oxidant, 0.1 to 2 percent of complexing agent, 0.1 to 2 percent of corrosion inhibitor, 0.05 to 0.3 percent of wetting agent, 0.05 to 2 percent of pH conditioning agent and the balance of water. 0.1 to 1 percent of polyvinyl alcohol can also be added so as to enhance the film forming uniformity and compactness of the treating agent. The treating agent has high dispersing capability, infiltration capacity and enclosing capability and blocks micro-pores on the surface of a barrel nickel-plated battery shell and cracks on the surface of a pre-nickel-plated battery shell so as to prevent oxygen and other media from corroding the battery shell and enhance the resistance of the shell to severe environments such as salt mist, dampness, molds and the like. A film layer has high adhesion, uniformity and compactness and does not affect electrical conductivity. The invention also discloses a method for performing anti-rust treatment on the battery shell by using the treating agent. The agent has a simple process and low cost, is convenient to use and non-corrosive and does not cause environmental pollution.

The method of producing chitin, astaxanthin, protein, calcium powder and biofertilizer with shrimp shell includes the following technological steps: crushing shrimp shell, enzymolysis with composite enzyme, extracting with organic solvent, reaction and separating liquid from solid; separating the liquid into hydrolysis liquid and organic liquid ; vacuum concentrating the organic liquid to obtain coarse astaxanthin; eliminating organic solvent from hydrolysis liquid, vacuum concentrating and spray drying to obtain protein powder; soaking the solid in 3 % concentration hydrochloric acid and rinsing to obtain chitin; introducing CO2 gas to the waste acid solution and filtering to obtain active calcium powder; ultrafiltering the coarse astaxanthin liquid to obtain astaxanthin; adding phytic acid and active oligose into the effluent to obtain nutritious liquid as biofertilizer.

The invention provides a preparation method of a flexible polyaniline conductive composite hydrogel material, and belongs to the technical field of functional polymer materials. According to the method, a flexible conductive material with good mechanical strength and electrochemical property is prepared by utilizing the properties and characteristics of polyatomic acid of phytic acid, by taking the phytic acid as an acid doping agent and a gel crosslinking factor and taking polyvinyl alcohol hydrogel as a skeleton. The method comprises the following steps: dissolving polyvinyl alcohol into water to form a solution and matching the solution with phenylamine and phytic acid at a proportion to form a solution A; dissolving initiating agent ammonium persulfate into water to form a solution B; quickly mixing the solution A and the solution B at a low temperature, so that in situ polymerization is performed on the phenylamine in a polyvinyl alcohol aqueous solution, so as to form phytic acid-doped polyaniline hydrogel; placing the phytic acid-doped polyaniline hydrogel into a refrigerator for freezing, so as to form the flexible polyaniline conductive composite hydrogel material by a cyclic freeze thawing. The flexible polyaniline conductive composite hydrogel material prepared by the method has good electrochemical property, mechanical strength and flexibility; the preparation method is simple, and the cost is low, and the preparation method has wide application prospect in the fields of flexible energy storage materials and biomedicine.

The present invention provides a gel beverage composition for comprehensive nutritional supplementation, having balanced nutrients, refreshing taste, a low pH, a soft gel form suitable for drinking/eating and the ability to retain its gel form for a long period of time. The composition is a gel which has a pH ranging from 3-4 and contains 5-20% by weight of saccharide, 0.1-5% by weight of fat, 2.5-6% by weight of protein material which does not coagulate at pH 3-4, 0.2-3% by weight of citric acid, 0.2-1.5% by weight of at least one acid component selected from the group consisting of ascorbic acid, tartaric acid, succinic acid, malic acid, gluconic acid, phosphoric acid, phytic acid, lactic acid and trisodium citrate, 0.01-0.5% by weight of an emulsifying agent, 0.1-1% by weight of agar and 65-90% by weight of water.

The invention discloses a method for preparing a polyaniline modified neutral conductive filter membrane and belongs to the technical field of conductive filter membrane modification and preparation in the field of conductive composite materials. The method is characterized in that phytic acid with high conductivity is doped with polyaniline under neutral conditions, the low-cost filter material is subjected to conductive modification, and good conductive performance is kept under the neutral conditions. The doped polyaniline is firmly loaded, and the good filtering separation performance of the filter cloth is kept; the conductive performance is improved due to graphene modification; the non-conductive filter material is modified into a filter membrane with high conductivity, the application range of the filter membrane is widened, and the filter membrane is particularly suitable for applying a micro electric field to relieve the membrane pollution and other membrane charging processes. The method has the beneficial effects that the graphene polyaniline is combined with the filter material, and the conductivity of the filter membrane is greatly improved, particularly the conductivity under the neutral conditions; and therefore, the modified low-price filter material is a conductive filter membrane and has wide application prospects in the fields of membrane charging process and water treatment thereof.

The invention discloses a nutritional health bread rich in wheat bran dietary fiber and a preparation method of the nutritional health bread. The bread is light brown, full in appearance, smooth in surface and normal in size, and does not have cracks and is not deformed. The internal structure is uniformly spongy, fine, soft and flexible, and the bread has light fresh scent and sweet taste of wheat bran, does not have pungent smell, and is good in palatability. The bread has the advantages as follows: 1 the dietary fiber prepared from the raw material of wheat bran through compound enzymolysis is added into the bread, and the dietary fiber has the functions of moistening lung, moisturizing skin, preventing and resisting cancer, strengthening the spleen and harmonizing the stomach, blackening and strengthening hair and clearing intestines and stomach, so that the nutrition and functionality of the nutritional bread are improved; 2 the bran is soaked, washed and rinsed so as to remove protein, starch and phytic acid, so that the palatability of the bread is improved; 3 the water-soluble dietary fiber is added in raw materials of the bread, so that the rheological property and nutritional property of the bread are changed, and the nutrition arrangement of the bread is scientific and reasonable.

The invention relates to an environmentally-friendly magnesium alloy chemical conversion film, microarc oxide film hole sealing solution and a hole sealing method. The hole sealing solution comprises phytate or phytic acid and one or more following substances of alkali metal hydroxide, silicate, phosphoric acid or phosphate. The hole sealing method is operated according to the following steps: preliminary treatment; chemical conversion or micro-arc oxidation; post treatment: in phytate, one of or several kinds of silicate, phosphoric acid or phosphate are added, the pH value of solution is adjusted by the alkali metal hydroxide or ammonia water, solution temperature is controlled at 30-100 DEG C, and hole sealing treatment is carried out. The hole sealing solution used by the invention does not contain Cr6 and F-, thus causing no pollution to environment. After sealing holes, the size of the crack or the micropore of the chemical conversion film or oxide film is obviously decreased, and corrosion resisting property is improved; meanwhile, the film layer and the organic coating obtained by next-step painting have favourable adhesive force.

The invention provides a synthesis method of a phytic acid polymer and an application of the phytic acid polymer in the field of metal surface treatment. The preparation method specifically comprises steps as follows: phytic acid is dissolved in water and prepared to form a phytic acid solution; a silane coupling agent is dissolved in an organic solvent, the phytic acid solution is heated to 55-85 DEG C, the organic solvent solution containing the silane coupling agent is dropwise added to the phytic acid solution while the phytic acid solution is stirred, a thermostatic reaction is performed, and the slight white phytic acid polymer solution is obtained. When the phytic acid polymer solution is applied to metal surface pretreatment, a phytic acid polymer chemical conversion coating can be formed on a metal surface, and the defect of poor corrosion resistance of a film formed merely through phytic acid can be effectively overcome.

The invention provides an efficient pig-feed complex enzyme preparation with enzyme protectant. The efficient pig-feed complex enzyme preparation with enzyme protectant is capable of promoting absorption of nutrients in the feed by pigs to increase feed utilization rate by degrading antinutritional factors, such as beta-glucan, phytic acid and pectin, biomacromolecules and the like. By adding the protectant, inactivity rate in enzymes can be reduced, effective time can be prolonged, and the effects of the enzyme preparation are more evident and longer. The efficient pig-feed complex enzyme preparation with enzyme protectant is high in feed conversion rate, feed-to-grain ratio can be lowered by more than 19%, growth speed of pigs is increased by more than 23%, and enzyme activity is kept in 18 months and can be kept by more than 90%.

The invention discloses a preparation and application method for conversion liquid of a corrosion resistant oxide film on magnesium alloy surface, which is characterized in that: the conversion liquid adopts rare-earth-containing salt, permanganate, persulphate, nitrate and perchlorate as composite oxidant, zirconium salt, vanadic salt and strontium salt as film forming promoter, boric acid, aminoacetic acid-hydrochloric acid solution as pH buffer regulator, pyridine, thiourea and derivatives, tannins, phytic acid and the salt compound as corrosion inhibitor, sodium dodecyl benzene sulfonate and dodecyl phenol polyoxyethlene ether (OP-10) as wetting agent; the conversion liquid is free from hexavalent chromium and environment-friendly; heating is not required for chemical conversion treatment, and the treatment time is 1 to 5min; composite oxide film with good corrosion resistance performance comprising rare-earth composite oxide, magnesia and manganese oxide can be rapidly prepared at on magnesium alloy surface at ambient temperature. The preparation method for conversion liquid of a corrosion resistant oxide film on magnesium alloy surface has the advantages of fast film forming, simple process, uniform film, strong corrosion resistance and less environmental pollution.

The invention especially relates to a Raman probe using a gold nanosol as a substrate for detection of mercury ions and a preparation method thereof, which belongs to the technical field of Raman spectrum detection. The preparation method comprises the following steps: adding secondary deionized water into a nano-silver dispersion liquid with phytic acid micelle as a protective agent, carrying out stirring, heating to a temperature of 40 to 60 DEG C, adding a perchloroauric acid solution drop by drop, carrying out stirring for 10 to 20 min, then adding trisodium citrate drop by drop and carrying out stirring for 10 to 20 min and cooling so as to prepare the gold nanosol; and adding crystal violet into the prepared gold nanosol and carrying out uniform mixing. The preparation method for the Raman probe is simple and convenient and needs short preparation time. A gold nanoparticle in the Raman probe has good stability; and the Raman probe has the advantages of capacity of rapid detection of mercury, high sensitivity, good selectivity and a mercury ion detection limit of 0.5*10<-12> mol/L.

A process for preparing edible bran fibres from wheat bran includes such steps as washing wheat bran, removing impurities, high-temp steaming, removing humic acid, hydrolyzing, enzymolyzing, deactivating enzyme, bleaching, neutralizing, and packing.

Algae is fermented with microbe to dissolve out the effective components and compounded with fulvic acid to reinforce the nutritious components and trace elements, so as to produce various kinds of fertilizer. The fertilizer contains various matters for promoting the growth of plant, and can strengthen the photosynthesis of crop, increase crop yield, raise crop quality, raise crop resistance, improve physical and chemical performance of soil and eliminate obstruction in succession cropping. The present invention is green fertilizer suitable for modern agriculture.

The invention relates to a magnesium alloy micro-arc oxidation electrolyte and a micro-arc oxidation method. The electrolyte comprises phytate (or phytic acid), a calcic electrolyte, and further one or more added electrolytes as follows: carbonate, silicate, boric acid or borate, and aluminate or aluminum hydroxide. The micro-arc oxidation method comprises the following steps of: pre-treatment; micro-arc oxidation; and post-treatment. The micro-arc oxidation electrolyte provided by the invention does not contain Cr<6+>, F<-> and PO4<3->, and even if strong base used is less, so that the environment is not polluted. The film obtained by the micro-arc oxidation method is smooth in surface, good in corrosion resistance and better in antibacterial performance and biological activity. According to the method, raw materials are easily available, and the method is suitable for industrialized production.

The invention relates to a Chinese chestnut biological antistaling agent which comprises the following components in parts by weight: 5-15 parts of chitosan, 0.5-1.5 parts of tea polyphenol, 0.5-1.5 parts of phytic acid and 1.5-2.5 parts of potassium sorbate. The Chinese chestnut biological antistaling agent has the advantages of no toxicity and taste and low cost, and also has excellent dispersibility, moisture retention, and film formation and antibiotic property. Repeated experiments in multiple years prove that the Chinese chestnut processed by the Chinese chestnut biological antistaling agent has quality guarantee period prolonged 4-8 times compared with the Chinese chestnut unprocessed by preservation, can be preserved for 1-2 years under normal temperature, and has no remarkable change on the appearance and the taste, no mildew and no pests. If being combined with the cold storage technology, the Chinese chestnut biological antistaling agent can ensure that the Chinese chestnut has longer quality guarantee period.

A nutritive wheat bran beverage is prepared from wheat bran through removing impurities, baking, heat treating for removing phytic acid, enzyme transforming, deactivating enzyme, separating clear liquid, from turbid liquid, dispensing liquid, sterilizing, pouring in container and cooling.