43results about How to "Weak retrograde" patented technology

This invention relates to a modified starch preparation method, specifically a phosphate starch, which takes starch, urea, inorganic phosphate as raw materials in the double-cones rotary dryer, and conducts seven process steps of preparing chemicals, mixing, pre-drying, esterification, cooling, sieving, packaging to prepare the finished product, which is light yellow to yellow powder particle, and the viscosity peak is from 1000 to 6000BU. When the mass concentration is 6% for starch paste, it can gelatinize at the temperature lower than 66deg.C till cold water.

The invention discloses a modified starch and a production method thereof and aims at providing a modified starch which has high viscosity as well as good elasticity and strong binding force of starch slurry. The modified starch is prepared by virtue of the following steps: (1) blending; (2) adding a whiteness stabilizer, mixing for 15-25 minutes, regulating the pH value to 2.0-3.0, regulating the temperature to 35-40DEG C, and performing acid splitting reaction for 1-1.5 hours; (3) adding basic catalyst and regulating the pH value to be 6.0-7.0, adding an inhibitor, reacting for 15-25 minutes, regulating the pH value to be 10.5-11.5; (4) adding the cross-linking agent into the original starch slurry reacted in the step (3), regulating the temperature to be 38-48 DEG C, reacting for 2-4 hours, then reducing the temperature of the original starch slurry to be 25-30 DEG C, and regulating the pH value to be 5.5-6.0 with the neutralizing agent; (5) washing and centrifuging the original starch slurry neutralized in the step (4), and drying to obtain the modified starch. The modified starch and the production method belong to the technical field of starch.

The invention relates to environment-friendly type textile sizing agent. The environment-friendly type textile sizing agent comprises following components in parts by mass: 72 parts of nano silicon dioxide modified starch, 15 parts of a protein sizing agent, 11 parts of polyacrylate emulsion, 2 parts of an organic silicon de-foaming agent, 3 parts of protein amino acid, 4 parts of kaolin, 3 parts of sodium sulfamate and 1 part of polyacrylate. The sizing agent with the formula has good film-forming property and permeability; the formula does not contain polyvinyl alcohol, thus the environment-friendly type textile sizing agent is very environment-friendly.

The invention discloses a convenient instant fresh noodle and a preparation method thereof, and relates to the field of food processing. The convenient instant fresh wet noodle is mainly composed of high-gluten wheat flour, modified starch, vital gluten and salt. The addition of additives reduces indicator degradation of color, texture and microorganisms during storage. The noodle adopts an extrusion molding curing process to ensure long shelf life by pickling, modified atmosphere packaging and irradiation sterilization.

The invention relates to a low-pollution textile sizing agent. The low-pollution textile sizing agent comprises following components in parts by mass: 64 parts of nano silicon dioxide modified starch, 18 parts of a protein sizing agent, 5 parts of polyvinyl alcohol, 11 parts of polyacrylate emulsion, 2 parts of a modified silicone oil de-foaming agent, 3 parts of protein amino acid, 4 parts of kaolin, 3 parts of sodium sulfamate and 1 part of polyacrylate. The sizing agent with the formula has good film-forming property and permeability; the formula contains less polyvinyl alcohol so that the pollution to the environment is low.

The invention relates to a sizing method of low-pollution textile slurry, which comprises the following steps: pouring slurry into a slurry trough, and heating the slurry in the slurry trough to 52 DEG C; immersing the fabric into the slurry in the slurry trough for 6 minutes while winding the fabric on a frame to tighten the fabric and rolling the fabric at uniform speed so that the slurry is sufficiently and uniformly filled into the fabric, wherein the pressure of the squeezing roller is 12KN; taking out the fabric, putting the fabric in a drying oven, and drying the fabric; immersing the dried fabric into the slurry again for 3 minutes, and rolling the fabric at uniform speed, wherein the pressure of the squeezing roller is 14KN; and taking out the fabric, putting the fabric in a drying oven, and drying the fabric to finish the sizing technique. The method completes the fabric sizing in a twice sizing mode, and designs the technological parameters (mainly temperature of the slurry trough, immersion time for two sizing processes, and pressure of the squeezing roller) according to the specific slurry. The sizing technique is especially suitable for sizing high-count cotton fabrics, and has favorable sizing effect.

The present invention relates to a composition for tissue preservation, and more particularly to a placenta preservation solution and a preparation method thereof. The placenta preservation solution comprises, in 1000 ml of an aqueous solution, 204 mg to 340 mg of potassium dihydrogen phosphate, 1.40 g to 1.50 g of disodium hydrogen phosphate, 7.6 g to 8.2 g of sodium chloride, 149 mg to 261 mg ofpotassium chloride, 100000U-1000000U of penicillin, 60mg-100mg of streptomycin, 12.5g of glucose, 5g of dextran-40, 7.35g of trisodium citrate and 352mg-528mg of vitamin C, and solution pH is 7.33-7.83. The placenta preservation solution is simple in components, stable and safe, has no toxic side effects, and has low cost. The placenta preservation solution is simple in preparation process and can be prepared in a large amount in a short time.

The invention discloses a preparation method of hydroxypropyl starch resistant dextrin, and relates to the technical field of resistant dextrin. According to the method, hydroxypropyl starch is used as a raw material, prepared starch paste has high transparency, high fluidity, weak retrogradation performance, high stability and good freeze-thaw stability, then alpha-amylase is added for hydrolysis, the solubility of glucose is improved, the content of free glucose in the product can be effectively reduced, and the content of the resistant dextrin is increased; then a starch branching enzyme isadded, the digestion resistance of the starch paste is improved, and therefore the content of the resistant dextrin is more effectively increased. The preparation process for preparing the resistantdextrin by using the hydroxypropyl starch is simple, the yield is high, detection is carried out by means of the method which accords with the national food safety standard GB 5009.88-2014, the content of the resistant dextrin reaches 80% or above, the content of free glucose is 10% or below, and the method has industrial production value.

The invention relates to a preparation method of a low-pollution textile sizing agent. The method comprises the steps of mixing hydroxypropyl modified starch and silicon powder, then feeding the mixture into deionized water, and feeding sodium hydroxide and methyl alcohol into the mixed solution; carrying out hydrolysis, drying and purifying to obtain nanosilicon dioxide modified starch; feeding soyabean protein into sodium hydroxide solution, stirring at constant speed for 15 minutes at the temperature of 45 DEG C, and filtering out precipitate to obtain protein slurry; pouring the nanosilicon dioxide modified starch, the protein slurry, polyvinyl alcohol, polyacrylate emulsion and an organic silicon defoamer into a mixer, and mixing to obtain the low pollution textile sizing agent. The low-pollution textile sizing agent prepared by the method is good in film-forming property and permeability; furthermore, the content of the polyvinyl alcohol in the formulation is lower, so that the low-pollution textile sizing agent is lower in environmental pollution.

The invention discloses a novel preparation method of crosslinking modified starch microspheres. The novel preparation method of the crosslinking modified starch microspheres comprises the following steps: firstly, using modified starch as a raw material, and preparing a modified starch solution with the concentration of 5 to 30 percent g/ml; secondly, adding a certain amount of polyvinyl alcohol solution as a modifier, adding the prepared modified starch solution into an oil phase containing an emulsifier; thirdly, carrying out high speed emulsification by a shearing machine, wherein the emulsifying speed is 500 to 2000rpm and the time is 10 to 20 minutes, and the like. According to the novel preparation method disclosed by the invention, a unique cross-linking agent which is divinyl sulfone (DVS) or sodium tetraborate decahydrate is adopted and the existing cross-linking problems are greatly improved, thereby obtaining a more stable and rapid crosslinking reaction and better product performance.

The invention relates to a sizing method for lockram textile slurry, which comprises the following steps: pouring slurry into a slurry trough, and heating the slurry in the slurry trough to 58 DEG C; immersing the fabric into the slurry in the slurry trough for 12 minutes while winding the fabric on a frame to tighten the fabric and rolling the fabric at uniform speed so that the slurry is sufficiently and uniformly filled into the fabric, wherein the pressure of the squeezing roller is 13KN; taking out the fabric, putting the fabric in a drying oven, and drying the fabric; immersing the dried fabric into the slurry again for 6 minutes, and rolling the fabric at uniform speed, wherein the pressure of the squeezing roller is 16KN; and taking out the fabric, putting the fabric in a drying oven, and drying the fabric to finish the sizing technique. The method completes the fabric sizing in a twice sizing mode, and designs the technological parameters (mainly temperature of the slurry trough, immersion time for two sizing processes, and pressure of the squeezing roller) according to the specific slurry. The sizing technique is especially suitable for sizing lockrams, and has favorable sizing effect.

The invention relates to textile size applicable to real silk fabrics. The textile size comprises the following components in mass ratio: 70 parts of protein size, 20 parts of nano silicon dioxide modified starch, 8 parts of polyacrylate emulsion, 2 parts of modified silicone oil defoaming agent, 6 parts of argine monohydrochloride, 3 parts of sodium sulfamate and 1 part of polyacrylate. According to the textile size applicable to real silk fabrics, the protein size is taken as a primary raw material, the nano silicon dioxide modified starch and the polyacrylate emulsion are taken as secondary raw materials, the modified silicone oil is taken as a defoaming agent, and the four components are proportioned, so that the size has favorable film forming property and permeability; experiments show that the textile size is particularly applicable to the sizing of the real silk fabrics; as the formula does not contain polyvinyl alcohol, the textile size is more environment-friendly.

The invention discloses salty and fragrant yoghurt sauce and a preparation method thereof. The yoghurt sauce is prepared from the following raw materials: salts, a protein supplement, compound stabilizers, a flavor regulator, a sweetening agent, 150-250U/ton of strains and raw milk. The compound stabilizers comprise acetylated distarch oxalate, gelatin, sodium caseinate and pectin. The salts comprise edible salt, an emulsifying salt and a mineral salt. The protein supplement is an animal protein or a vegetable protein. When the yoghurt sauce is prepared, the materials are mixed and homogenized, then pasteurization is carried out, then strains are inoculated and fermented, and finally filling and after-ripening are carried out. The salty and fragrant yoghourt sauce disclosed by the invention is prepared from the raw materials of the raw milk, the salts, the protein supplement, the compound stabilizers, the flavor regulator and the sweetening agent, is moderate in salty and fragrant taste, rich in fragrance and good in water binding capacity, can stably meet smearing requirements, and is deeply loved by consumers.

The invention relates to a sizing method of textile slurry for real silk fabrics, which comprises the following steps: pouring slurry into a slurry trough, and heating the slurry in the slurry trough to 52 DEG C; immersing the fabric into the slurry in the slurry trough for 10 minutes while winding the fabric on a frame to tighten the fabric and rolling the fabric at uniform speed so that the slurry is sufficiently and uniformly filled into the fabric, wherein the pressure of the squeezing roller is 12KN; taking out the fabric, putting the fabric in a drying oven, and drying the fabric; immersing the dried fabric into the slurry again for 4 minutes, and rolling the fabric at uniform speed, wherein the pressure of the squeezing roller is 14KN; and taking out the fabric, putting the fabric in a drying oven, and drying the fabric to finish the sizing technique. The method completes the fabric sizing in a twice sizing mode, and designs the technological parameters (mainly temperature of the slurry trough, immersion time for two sizing processes, and pressure of the squeezing roller) according to the specific slurry. The sizing technique is especially suitable for sizing real silk fabrics, and has favorable sizing effect.

The invention discloses a method for preparing environmentally friendly tableware by using cassava starch sugarcane corn straw. The method includes the following steps: ball-milling the cassava starchand acetic acid, adding a catalyst, setting a certain temperature, rotating speed and time, washing the materials with distilled water and then ethanol, and drying by baking to obtain cassava acetatestarch; dissolving the cassava acetate starch in distilled water, dropping a plasticizer, and stirring the materials at a certain temperature, rotating speed and time for reaction to obtain cassava acetate starch glue; evenly mixing the cassava acetate starch glue, a filler and sugarcane straw, drying the materials at a certain temperature, taking the materials, placing the materials in a mold for hot pressing to form the tableware, and setting a certain pressure, temperature and time; and spraying a waterproof membrane on the pressed tableware. The method is simple, easy in operation, harmless to human body and degradable, has less environmental pollution, and is suitable for industrial production. The produced environmentally friendly tableware is hygienic, non-toxic, heat-resistant andwaterproof, is not prone to deformation and damage, has a wide range of raw materials, and is low in cost.

The invention relates to a preparation method for environment-friendly type textile sizing agent. The preparation method comprises the following steps: mixing hydroxypropyl modified starch and silicon powder and adding a mixture into de-ionized water; adding sodium hydroxide and methanol; carrying out hydrolysis, and drying and purifying to obtain nano silicon dioxide modified starch; adding soybean protein into a sodium hydroxide solution and agitating at 45 DEG C at uniform speed for 15 minutes; filtering and removing sediment to obtain a protein sizing agent; pouring the nano silicon dioxide modified starch, the protein sizing agent, polyacrylate emulsion and an organic silicon de-foaming agent into an agitator to be agitated and mixed to obtain the environment-friendly type textile sizing agent. The sizing agent prepared by the invention has good film forming property and permeability; the sizing performance is good and a formula does not contain polyvinyl alcohol, thus the environment-friendly type textile sizing agent is very environment-friendly.