628 results about "Corn starch" patented technology

The application relates to the technical field of thermal insulation materials, and discloses an aerogel thermal insulation material and a preparation method thereof. A polysiloxane derivative containing nitrogen and phosphorus flame-retardant elements in a structure is prepared as a polymer crosslinking monomer, chemical crosslinking is carried out with corn starch, a crosslinked gel liquid is formed, and the corn starch-based aerogel thermal insulation material can be prepared through a freezing and drying process. The corn starch-based aerogel thermal insulation material prepared through the chemical crosslinking method has a uniform pore structure, has the characteristics of aerogel, and has the characteristics of good thermal insulation effect, high mechanical strength, strong hydrophobicity, excellent flame-retardant performance and the like by introducing the flame-retardant elements such as nitrogen, phosphorus and silicon and the hydrophobic Si-O bond into the aerogel structure, so that the further application of the aerogel thermal insulation material in building thermal insulation materials is facilitated.

The invention provides a soil conditioner for improving soil hardening and a preparation method thereof, and relates to the technical field of soil conditioning. The soil conditioner is prepared by combining nano silicon dioxide, a straw retting material, a straw composite fermentation material, biochar, a water-retaining agent and modified starch. The straw composite fermented material is prepared by the following steps: crushing straws, mixing with sweet water, stirring, drying, carrying out microwave treatment, mixing with bacillus thuringiensis, fermenting, sterilizing, subsequently adding a composite microbial agent of bacillus subtilis, trichoderma and bacillus mucilaginosus, continuously fermenting, and drying. The modified starch is prepared by semi-gelatinizing corn starch and then carrying out microwave drying and shaping. According to the present invention, the defects in the prior art are overcome, the soil hardening phenomenon can be rapidly improved with the small addition amount, the soil porosity is increased, the activity and the diversity of the soil microorganisms are ensured, and the soil fertility is improved.

The invention relates to the technical field of pipeline powder weighing, in particular to a powder weighing device based on a ten-thousand-minute balance, which comprises a bracket, a stirring blanking mechanism and a layered crushing mechanism, the bracket is fixedly connected with a hopper, the top of the hopper is fixedly connected with a top cover, and the top cover is fixedly communicated with a feeding bin; the stirring and discharging mechanism is used for equivalent stirring and discharging, and the layered crushing mechanism is used for crushing materials in a layered mode to prevent caking. Corn starch is equivalently and stably conveyed out from a discharging port by utilizing spiral pushing movement of a screw rod, so that the discharging amount is uniform and consistent each time, and the requirement of accurate weighing is met; the layered crushing mechanism drives a stirring piece to slide on a rotating shaft up and down in a reciprocating manner while the stirring and discharging mechanism operates; and then the blades are used for carrying out layered crushing on the agglomerated materials, so that the agglomerated corn starch materials can be fully dispersed, non-uniform blanking caused by the agglomerated materials is avoided, and the mass of the corn starch weighed each time is closer to a target value.

The invention provides an application of inositol monophosphate in an enzyme catalysis reaction system for preparing inositol. The invention also provides a preparation method of the inositol, the starch is used as a substrate, glucan phosphorylase, glucose phosphate mutase, inositol-3-phosphate synthase and inositol monophosphate are added as enzyme catalysts to catalyze the substrate to generate the inositol, the inositol monophosphate is derived from Archaeoglobus fulgidus, the amino acid sequence is shown as SEQ ID NO: 12, or the amino acid sequence is shown as SEQ ID NO: 1, or the amino acid sequence is shown as SEQ ID NO: 2, or the amino acid sequence is shown as SEQ ID NO: 3, or the amino acid sequence is shown as SEQ ID NO: 4, or the amino acid sequence is shown as SEQ ID NO: 5, or the amino acid sequence is shown as SEQ ID NO: 6. The inositol monophosphate is derived from Thermococcus kodakarensis, and the amino acid sequence of the inositol monophosphate is as shown in SEQ ID NO: 13; or the inositol monophosphate is derived from Pseudothermotoga lettinae, and the amino acid sequence of the inositol monophosphate is as shown in SEQ ID NO: 14. Inositol-3-phosphate synthetase and inositol monophosphate with good performance are screened, high-concentration starch is efficiently catalyzed to be converted into inositol by a one-pot method in a whole-cell feeding mode, and NAD < + > and other coenzymes do not need to be used. Under a 60L reaction system, 200g / L of corn starch is catalyzed, the unit yield of the prepared inositol reaches 161g / L, and the method has a good industrial application prospect.

The invention provides a preparation method and application of low-bath-ratio and high-viscosity hydroxypropyl carboxymethyl composite starch ether, and relates to the technical field of starch deep processing. The method comprises the following steps: S1, premixing corn starch with a compound base catalyst and magnesium stearate, and spraying an ethanol water solution for alkalization; s2, adding epoxypropane to carry out first-stage etherification, and then adding sodium chloroacetate to carry out second-stage etherification; and S3, after the reaction is finished, performing vacuum drying, crushing and sieving to obtain the high-viscosity hydroxypropyl carboxymethyl composite starch ether. Wherein the composite alkali catalyst comprises sodium hydroxide, sodium carbonate and calcium oxide. The starch ether obtained by the method has the advantages of high substitution degree, high viscosity, low solvent consumption and low energy consumption, and overcomes the defects of the traditional semi-dry method.

The invention discloses environment-friendly cassava cat litter and a preparation method thereof, and belongs to the technical field of pet supplies, and the environment-friendly cassava cat litter is prepared from the following raw materials in parts by weight: 45-55 parts of cassava starch, 20-30 parts of cassava peel, 8-15 parts of corn starch, 8-12 parts of water hyacinth fiber, 5-10 parts of bamboo fiber, 2-4 parts of propolis and 1.5-3.0 parts of mussel mucin. The raw materials are subjected to step-by-step synergistic enzymolysis and step-by-step fermentation to obtain the environment-friendly cassava cat litter. According to the mode, natural raw materials are combined, and the preparation process of step-by-step enzymolysis and step-by-step fermentation is adopted, so that the antibacterial performance and water absorption performance of the cat litter are improved, the defecation comfort and cleanliness of pet cats are improved, sanitation and health of pets and family environments are guaranteed, meanwhile, the product can be completely degraded in the natural environment after being used, and the environment is protected. The cat litter does not generate permanent solid waste like bentonite and silica gel cat litter, and is very environment-friendly.

The invention relates to a composition with functions of protecting gingiva and repairing enamel and a preparation method of the composition, and belongs to the technical field of oral care. The composition contains a functional additive, a plant compound fermentation extract and the like, the functional additive is a mixture of corn starch, calcium phosphosilicate, hydroxyapatite, ubiquinone, sodium guaiazulene sulfonate, menthol and vitamin E, and the plant compound fermentation extract is obtained by fermenting and purifying honeysuckle flowers, radix polygonati officinalis and dandelions according to a specific proportion. Through the synergistic effect of the fermentation extract and the functional components, the problems that an existing toothpaste body is hardened, the storage stability is poor, the gingival protecting effect is short, and the enamel repairing persistence is insufficient are solved, the gingival protecting effect can be enhanced, the enamel repairing effect can be improved, the stability of the toothpaste body can be optimized, the antibacterial property and the oral mucosa relieving effect are achieved, and the oral cavity repairing effect is achieved. And the preparation process is scientific and reasonable, and is suitable for daily oral care.

The invention relates to a preparation method of a high-dispersity metal-polyphenol nano enzyme, which comprises the following steps: dispersing a metal compound and a polyphenol compound in water, uniformly mixing and stirring to preliminarily form a dispersion liquid containing nano enzyme particles, and homogenizing; adding hydrolyzed corn starch into the homogenized dispersion liquid, and homogenizing again; and carrying out micro-jet refining treatment on the nano-enzyme dispersion liquid to finally obtain the dispersion liquid containing the high-dispersity metal-polyphenol nano-enzyme. Compared with the prior art, the prepared nano-enzyme dispersion liquid is uniform in particle size, transparent and clear, and the long-acting activity is remarkably enhanced.

The invention provides a starch-based soft capsule composition, a starch-based soft capsule and a preparation method of the starch-based soft capsule, and belongs to the technical field of medicines. The starch-based soft capsule composition is characterized by being prepared from the following components in parts by weight: 50 to 100 parts of plant starch, 20 to 100 parts of modified starch, 0.1 to 5 parts of thickening agent and 0.1 to 5 parts of plasticizer, the plant starch comprises pea starch and corn starch in a mass ratio of (10-60): (40-50); the modified starch comprises modified corn starch and modified potato starch in a mass ratio of (1-5): (1-8). The starch-based soft capsule disclosed by the invention is high in joint closing rate; the starch-based soft capsule is high in transparency, not easy to age and good in stability after being stored for a long time.

The invention provides an environment-friendly silicon wafer as well as a preparation method and application thereof, and belongs to the technical field of reactive sintering silicon carbide ceramics. The environment-friendly silicon wafer is prepared from the following raw materials in parts by mass: 100 parts of silicon powder, 5-10 parts of a binder, 8-15 parts of petroleum coke and water, and the binder is an environment-friendly binder and comprises one or more of corn starch, maltose, cane sugar and glucose. The environment-friendly adhesive is used for the silicon wafer, no unpleasant smell exists in the silicon wafer preparation and siliconizing sintering use process, the environment-friendly requirement can be met, and industrial production is facilitated; the use amount of the binder is limited, it can be guaranteed that in the sintering process of the reactive sintering silicon carbide ceramic, after a part of carbon content (solid content) is converted to be sintered, a blank still forms a round shape after silicon is dissolved out, the appearance is not deformed, and the problems that after the binder is sintered, the deformation is large, and the binder cannot be separated from the silicon carbide ceramic to be sintered are solved.

The utility model discloses disposable aviation tableware, and relates to the field of disposable tableware, the disposable aviation tableware comprises a dinner plate, two sides of the dinner plate are provided with supporting handles, the dinner plate is internally provided with a supporting pipe, the upper end of the supporting pipe is provided with a clamping groove, and the lower ends of the dinner plate and the supporting pipe are provided with protruding points. A clamping strip ring is arranged at the upper end of the dinner plate, a dinner cover is arranged at the upper end of the dinner plate, a sealing edge is arranged at the side end of the dinner cover, and the dinner plate and the dinner cover are both made of full corn starch. Through the arrangement of the protruding points, the friction force between the dinner plate and the small table plate can be increased, the dinner plate can be effectively prevented from sliding due to jolting in the flying process, accidents such as food spilling or scalding can be avoided, the dining safety of passengers is guaranteed, the passengers can be more relieved during dining, and the service life of the dinner plate is prolonged. Through the detailed consideration, the flight experience of passengers can be improved, and the passengers can feel more comfortable and convenient.

The invention relates to the technical field of microbial fermentation, in particular to a fermentation medium for producing oxytetracycline. According to the fermentation culture medium, a corn starch-molasses-wheat hydrolyzed sugar composite carbon source, a soybean cake powder-corn steep liquor-yeast extract composite nitrogen source and a choline chloride-betaine-L-lysine precursor accelerant in a specific proportion are used as a core innovative system, and a form regulating agent, a defoaming agent and inorganic salt are cooperatively added. Through the synergistic effect of multiple components, the fermentation titer and yield of oxytetracycline are remarkably improved, the fermentation period is shortened, the generation of heteroacid is effectively inhibited, the mycelium form is optimized, and the oxytetracycline fermentation medium is suitable for industrial large-scale production of oxytetracycline.

The present invention discloses a liquid nutritional meal replacement and fat-reducing food and a preparation method thereof, comprising the following steps: S1, preparation of a composite resistant dextrin; S2, preparation of a Poria cocos extract; S3, preparation of a composite plant extract; S4, preparation of the liquid nutritional meal replacement and fat-reducing food. The liquid nutritional meal replacement and fat-reducing food has high nutritional value, good taste, and a strong sense of fullness. By preparing resistant dextrin using potato starch as a raw material, then coating it with corn starch, and supplementing it with a composite plant extract, it can not only improve the sense of fullness, but also slow down the digestion rate of the meal replacement food in the stomach and intestines, thereby reducing the rapid increase in blood sugar after a meal, having a significant effect on weight control, and slowing down the gas production rate of the resistant dextrin fermented in the intestines, reducing the discomfort caused by abdominal distension.

The invention relates to a method for preparing bio-based isosorbide dimethyl ether through resin catalysis, and belongs to the technical field of organic synthesis. Adding corn starch into a sulfuric acid solution, hydrolyzing into glucose, and filtering to obtain a glucose solution; adding a solid acid catalyst into the concentrated glucose solution, and filtering after reaction; carrying out reduced pressure distillation on the filtrate to obtain an isosorbide crude product, and purifying through recrystallization; the preparation method comprises the following steps: adding isosorbide, a methylation reagent and a basic catalyst into a reaction kettle, stirring for reaction, cooling and filtering; and distilling the filtrate, and collecting fractions to obtain high-purity isosorbide dimethyl ether. The solid acid catalyst is sorbic acid based styryl macroporous cation exchange resin; the styryl macroporous cation exchange resin is soaked in sulfuric acid to be activated and then is mixed with sorbic acid chloride, 2-thiophenecarbonyl chloride and zinc chloride to react, and then washing and drying are performed to prepare the solid acid catalyst; the isosorbide dimethyl ether prepared by the method disclosed by the invention is high in purity and relatively high in yield.

The invention relates to the technical field of medicine capsule production, and particularly discloses a preparation process for improving the filling quality of a Xinan capsule, which comprises the following six steps: weighing 4-5kg of hawthorn leaf extract powder and 0.5 kg of corn starch, then taking 95% ethanol, preparing a soft material, granulating, drying, crushing, adding auxiliary materials during total mixing, and filling. The auxiliary materials for improving the flowability of the medicine powder are added into the crushed medicine powder, and the auxiliary materials are mixed to cover the surface of the powder to form a hydrophobic layer and directly block water contact, so that the flowability of the medicine powder is realized, the difference between the medicine loading amount and the standard amount can be very small during filling, and the safety of the prepared capsule medicine is ensured.

The invention discloses a mianserin hydrochloride tablet prepared in a wet granulation mode. The mianserin hydrochloride tablet is prepared from mianserin hydrochloride anhydride, calcium hydrogen phosphate, corn starch, hydroxypropyl methylcellulose, colloidal silicon dioxide, magnesium stearate and a film coating agent. According to the mianserin hydrochloride tablet and the preparation method thereof, the stability of the mianserin hydrochloride tablet is improved by using the high-concentration adhesive solution and optimizing the granulation parameter range, the problem that related substances are increased due to crystal transformation of active ingredients in the product preparation process is solved, and the medication safety of patients is better guaranteed.

The invention discloses a gastrodia elata fermented beverage and a preparation method thereof, and belongs to the technical field of food processing, the gastrodia elata fermented beverage is mainly prepared from drinking water, gastrodia elata juice, white granulated sugar and honey, and lactobacillus plantarum is adopted for fermentation. The preparation method comprises the following steps: quickly freezing the gastrodia elata, unfreezing by microwaves, and extracting the original juice to obtain the gastrodia elata juice; preparing slow-sugar gel from white granulated sugar, corn starch, konjac glucomannan, beta-cyclodextrin and citric acid; the preparation method comprises the following steps: uniformly mixing and stirring drinking water, gastrodia elata juice, slow-sugar gel and honey, grinding, homogenizing, bottling, sterilizing, cooling to a proper temperature, inoculating lactobacillus plantarum, and finally performing constant-temperature fermentation to obtain the gastrodia elata fermented beverage. The gastrodia elata fermented beverage is stable in fermentation effect, the obtained gastrodia elata fermented beverage is better in flavor and high in nutrient content and has a very good health-care function, and a new way is provided for deep processing of gastrodia elata and development of high-added-value products.

The invention discloses a preparation method of Kyoho grape young fruit polyphenol buccal tablets and a product thereof. The method comprises the following steps: (1) preparing grape young fruit powder: adding 0.1-0.3% of a Vc protective agent and 15-20% of a maltodextrin drying aid into Kyoho grape young fruits, homogenizing, filtering, adjusting the solid concentration to 15-25%, performing spray drying, and collecting the young fruit powder; and (2) tabletting buccal tablets: taking 1.5-3.0 parts by weight of young fruit powder, 4-6 parts by weight of corn starch, 3-5 parts by weight of glucose, 0.1-0.3 part by weight of Vc and 0.08-0.12 part by weight of magnesium stearate, mixing, tabletting and forming. According to the method, the problem of resource waste caused by the fact that young fruits of Kyoho grapes in the fruit thinning period cannot be eaten due to high acerbity is solved, meanwhile, the problem that the young fruits adhere to the wall is solved through optimization of a spray drying process, efficient utilization of polyphenol active ingredients and high-value utilization of the young fruits of the grapes are achieved, and planting economic benefits are improved.

The invention relates to the technical field of aquaculture feed, in particular to babylonia feed and a preparation method thereof. The babylonia lutosa feed is prepared from the following raw materials: fish meal, shrimp meal, soybean meal, wheat starch, corn starch, fish oil, vegetable oil, sodium alginate, carrageenan, betaine, an amino acid mixture, a vitamin premix, a mineral premix and an antioxidant. The feed can be dried and stored at normal temperature, and is convenient to store and transport; before being used, the feed is soaked in clear water for 30 minutes and can be swelled and jellied, so that babylonia can eat conveniently; meanwhile, the zero-dissolution-loss characteristic is achieved, and pollution to water quality and water bottom is reduced; a good food calling effect is achieved, and the feeding rate of babylonia can be increased; moreover, eating safety is guaranteed, healthy growth of Babylonia lutosa is promoted, and breeding benefits are improved.

The invention discloses a rice cake capable of regulating postprandial blood sugar and inhibiting starch aging, and belongs to the field of food processing and preservation. The rice cake is prepared from the following raw materials in parts by mass: 100 to 300 parts of polished round-grained rice flour, 100 to 200 parts of glutinous rice flour, 5 to 30 parts of pre-gelatinized corn starch, 5 to 30 parts of wheat type B starch granules and 100 to 300 parts of water. The pre-gelatinized corn starch-wheat type B starch composite preservative prepared by mixing the pre-gelatinized starch and the wheat type B starch in proportion can effectively inhibit hardness increase caused by starch aging and retrogradation in the storage process of the rice cake and avoid taste deterioration. Meanwhile, by adding the composite starch, the digestibility rate of the rice cake is remarkably reduced, and the metabolic regulation characteristic similar to that of low glycemic index food is endowed to the product. The characteristic of a cleaning label formed by natural components of the rice highly conforms to the development trend of healthy food, and the rice is especially suitable for functional rice product development of people needing to control postprandial blood sugar fluctuation.

The application provides a corn starch production refining and grinding device, and belongs to the technical field of starch grinding devices. The device comprises a chassis component, a top cover assembly, a fine grinding assembly, a primary grinding assembly, a material shaking assembly, a safety transmission component and a material pushing component. The top cover body, which can be automatically opened and closed, is rotatably connected to the top opening of the main shell. The fine grinding assembly is installed at the lower end of the main shell. The primary grinding assembly is installed at the upper end of the main shell. The material falling funnel is rotatably arranged in the primary grinding cover. After the top cover body is opened to the position, the material falling funnel is in the inclined position for convenient feeding. With the closing of the top cover body to the position, the central gear and the transmission gear are effectively connected in transmission. The corn starch slurry can be subjected to double grinding. The material shaking assembly is in transmission connection with the fine grinding shaft, so that the fine grinding degree of the corn starch is improved. The material pushing component is connected with the material shaking plate, so that the discharging efficiency of the ground corn starch is improved.

This invention relates to the field of concrete technology, specifically to a self-healing concrete material, its preparation method, and its application. The self-healing concrete material is a core-shell structured microcapsule, comprising a core material and a wall material. The wall material wraps around the core material. The core material comprises the following raw materials in parts by weight: 4-6 parts β-cyclodextrin, 12-18 parts sepiolite powder, 5-10 parts shellac powder, 25-35 parts sulfoaluminate cement, 10-15 parts magnesium oxide, 12-16 parts sodium silicate aqueous solution, and 14-17 parts calcium carbonate. The wall material comprises the following raw materials in parts by weight: 20-30 parts polyvinyl alcohol, 20-30 parts ethyl cellulose, 15-25 parts bentonite, and 25-35 parts corn starch. The mass ratio of the core material to the wall material is 6-7:3-4. The core material of the self-healing concrete material provided by this invention, comprising β-cyclodextrin, sepiolite powder, and shellac powder, can improve the problems of slow repair speed and poor reinforcement effect of self-healing materials.

The application discloses a kind of bumetanide tablets, raw materials include bumetanide 1 according to mass ratio;Corn starch 81~85;Lactose 50~54;Agar 0.1~0.3;Povidone K304~6;Polysorbate 80, 0.1~0.2;Silicon dioxide 3~4.5;Talcum powder 2~3.3;Magnesium stearate 0.3~0.7.Its preparation method includes the following steps: pretreatment, premixing, granulation, wet granulation, drying, dry granulation, total mixing, tabletting and packaging.The application introduces the synergistic system of trace agar and polysorbate 80 in the prescription.Agar, as a natural hydrophilic colloid, can form a hydrophilic network structure during the granulation process, and synergistically act with polysorbate 80, greatly improving the wettability and dispersibility of the slurry to ultrafine bumetanide, preventing drug agglomeration, so that the drug can be more evenly distributed in the granules during the subsequent drying and tabletting process.

The invention relates to the technical field of animal medicines, and particularly discloses a compound soft chewable tablet as well as a preparation method and application thereof. The compound soft chewable tablet comprises the following raw materials in percentage by weight: 0.4% of tofacitinib, 1% of an echinacea extract, 10-20% of pork liver powder, 10-20% of polyethylene glycol, 3-15% of a release agent, 0.3-1% of lauryl sodium sulfate, 1-3% of magnesium stearate, 2-5% of sucrose, 0.05-0.5% of a preservative, 11% of glycerol, 13-15% of soybean oil and the balance of corn starch. The tofacitinib citrate and the echinacea extract are adopted to prepare the soft chewable tablet, the process has no special requirements on equipment, the process is simple and feasible, and industrial production is utilized; by adopting conventional equipment such as a wet granulator, a mixer and a forming machine, the prepared oral product has the characteristics of stability, palatability, safety and effectiveness.

The invention discloses a culture medium for identifying gardnerella vaginalis, and relates to the technical field of bacterial culture media, the key points of the technical scheme are as follows: the culture medium comprises the following raw material components by concentration: 10.0 g / L of casein pancreatin digest, 3.0 g / L of cardiac pancreatin digest, 5.0 g / L of yeast extract powder, 1.0 g / L of corn starch, 5.0 g / L of sodium chloride and 13.0 g / L of agar, and the final concentration of defiberized sheep blood is 5%. The pharmaceutical composition is prepared from 1 mg / mL of sodium alginate, 1 mg / mL of sodium alginate, 1 mg / mL of polyanethole Sulfonate (SPS) and 10 [mu] g / mL of vancomycin. According to the invention, through optimal combination of specific components and dosages thereof, rapid identification and screening of gardnerella vaginalis can be realized, and the method has the advantages of accurate result, strong specificity and the like, and has practical popularization and application values.

This invention discloses a method for preparing high specific surface area cerium phosphate nanoparticles. The modified corn starch in this invention exhibits good water solubility, resulting in a solution with good suspension and stability after dissolving in water. This suspension stability provides a spatial carrier for the formation of cerium phosphate nanoparticles. A network structure is formed through hydrogen bonding between the molecular weight chains of the modified corn starch, allowing control over the uniformity of cerium phosphate particle size. Different specific surface area values ​​of cerium phosphate can be controlled by adjusting the concentration of the modified corn starch. The modified corn starch can be removed through subsequent high-temperature sintering and washing, ultimately yielding high-purity cerium phosphate nanoparticles. These nanoparticles possess uniformity and high specific surface area, making them suitable for applications in electrode materials, adsorbent materials, luminescent materials, and polymer nanofillers.

This invention discloses a mutant of raw starch hydrolase with improved stability and its applications. Using α-amylase AmyZ2 as the starting enzyme, and through computer-aided design to clarify the mutation site, a mutant was heterologously expressed in Bacillus subtilis, resulting in an α-amylase with improved stability. When using raw corn starch as a substrate, the mutant exhibits 1.57 times the specific enzyme activity and 2 times the stability of the starting enzyme. While maintaining the specific enzyme activity, the mutant enzyme shows a significant improvement in thermostability. This mutant has potential application value in the production of starch sugars using raw corn starch as a substrate.

The invention relates to the technical field of medical medicines, and discloses a composition for relieving eye strong light burn and a preparation method thereof. The composition is prepared from the following components in percentage by weight: 0.5 to 3 percent of sodium aliphatate, 30 to 50 percent of corn starch, 25 to 45 percent of talcum powder, 1 to 4 percent of cresol, 5 to 15 percent of flos chrysanthemi indici, 0.05 to 0.5 percent of radix scutellariae, 0.01 to 0.1 percent of flos carthami, 0.1 to 1 percent of aqueous solvent and the balance of water. The preparation method comprises the following steps: crushing medicinal materials; preparing a water-phase matrix containing a water-based solvent and sodium aliphatate; performing dry mixing on corn starch, talcum powder and the medicinal material fine powder; and mixing the water phase and the solid phase, adding cresol, homogenizing, adjusting the pH value, and sterilizing to obtain a paste or pasty composition. The composition can effectively relieve ocular surface pain, lacrimation and foreign body sensation caused by strong light burn through cooperation of multiple ways of physical protection, anti-inflammatory repair and oxidation resistance.

The preparation method comprises the following steps: uniformly mixing long-shaped rice flour, corn starch and wheat flour to prepare mixed powder, weighing the mixed powder and a modifier in parts by weight, putting the weighed mixed powder and modifier into a stirring machine, and uniformly mixing for later use; extruding the standby mixture into rice noodles at high temperature by using a twin-screw extruder; sending the extruded and formed rice noodles into a constant-temperature and constant-humidity incubator for standing; the rice noodles are put into cold water to be scattered; feeding the scattered rice noodles into a drying oven for hot air drying; and the dried rice noodles are cut and then bagged, and finished products are formed. The prepared rice noodles have the excellent characteristics of high water binding capacity and rich nutritional value, the hardness and elasticity of the rice noodles are remarkably enhanced, the rice noodles are not prone to adhesion in the production and eating process, meanwhile, the cooking loss rate and the breaking rate of the rice noodles are greatly reduced, and the cooking quality of the rice noodles is improved.

The invention relates to the technical field of sugar alcohol preparation, and discloses a preparation method of high-purity crystalline maltitol, which comprises the following steps: firstly, by taking corn starch milk as a raw material, preparing ultrahigh-content maltose syrup with the maltose content of more than or equal to 91%, the wheat triose content of less than or equal to 0.4% and the glucose content of less than or equal to 4% through an enzyme conversion method; carrying out hydrogenation reaction on the syrup by adopting a Raney nickel catalyst, and controlling the hydrogenation side reaction to be 2% or below, so as to obtain hydrogenated liquid with maltitol content of more than or equal to 88%; and then, a pigment separation procedure in a traditional process is omitted, and the hydrogenated liquid is directly subjected to decoloration, ion exchange, evaporation concentration, crystallization, centrifugation and drying treatment to finally prepare crystalline maltitol. According to the method, by screening a specific compound enzyme system and finely regulating the pH value and temperature control environment of a saccharification reaction system, the generation of maltose is effectively promoted, and side reactions such as excessive hydrolysis of glucose and reverse synthesis of trisaccharide are inhibited at the same time, so that the high-purity maltose syrup precursor is obtained.