78 results about "Citric acid" patented technology

The invention discloses an extraction method of ginger essential oil. The method comprises the following steps: preparing ginger powder: slicing fresh ginger, soaking the sliced ginger in a 0.5-0.9wt% starch solution for 10-15min, drying and grinding the sliced ginger, and filtering obtained powder through a sieve of 60-80 meshes; preparing enzymatic hydrolysate: adding a de-ionized liquid 1-ethyl-3-methyl imidazole acetate ([Emim]OAc) to a disodium hydrogen phosphate-citrate buffer solution to obtain an ionic liquid system; adding the ginger powder to the ionic liquid system, controlling a material-to-liquid ratio at (1: 10)g/ml-(1: 20)g/mL, adding cellulase which is 2000-4000U/g in enzyme activity ratio and enzymatically hydrolyzing for 3-5h at 40-50 DEG C; and 3) essential oil extraction: and implementing enzyme deactivation to the system in a water bath after the reaction, ultrasonically extracting for 5-10min, conducting microwave treatment, filtering through gauze, centrifuging, standing and taking the de-ionized liquid on lower layer, spin-steaming, collecting oily matters having intense fragrance and drying the oily matters through anhydrous sodium sulfate to obtain the ginger essential oil.

The present invention discloses a composite microbial deodorant and a preparation method thereof. The composite microbial deodorant contains Rhodop seudanonas palustris, Candida utilis, Lactobacillus acidophilus, Streptomyces griseus and Bacillus subtilis, wherein the Rhodop seudanonas palustris, the Candida utilis, and the Lactobacillus acidophilus are subjected to mixed fermentation in a light-transmitting temperature-controllable fermentation tank, the Streptomyces griseus and the Bacillus subtilis are subjected to mixed fermentation in an aerating sterile air temperature-controlled fermentation tank, and the two fermented bacterial agents are mixed and added with essence, citric acid and glacial acetic acid to prepare the composite microbial deodorant. The composite microbial deodorant of the present invention has characteristics of simple preparation process and no secondary pollution, and provides good odor removing effects for toilets, farms and other occasions.

The invention discloses a polyvinyl alcohol/xylan biodegradable composite membrane and a preparation method and an application thereof. The preparation method comprises the following steps: adding polyvinyl alcohol into water, dissolving for 1-4 hours at a temperature of 80-100 DEG C, adding and uniformly mixing xylan and citric acid and controlling the mass ratio of the xylan to the citric acid to be 1:1-4:1; and agitating obtained mixed solution for 2-6 hours at a temperature of 50-80 DEG C, standing, casting on a horizontally-arranged clean polyfluortetraethylene plate and vacuum-drying to obtain the polyvinyl alcohol/xylan biodegradable composite membrane. The polyvinyl alcohol/xylan biodegradable composite membrane and the preparation method and the application thereof have the benefits that the composite membrane has a tensile strength of 7.58-37.42 MPa and an elongation at break of 13.67-249.50 percent; the process is simple, the reaction conditions are easy to control, no environmental pollution is generated in the production process, and the industrialization is easy; and the composite membrane is innocuous, has good biodegradability and higher strength and can be applied to food packaging materials.

The invention relates to a coal mine omnipotent gas extraction agent, in order to solve the problem of poor gas extraction effect in existing coal mines. The extraction agent comprises the following raw materials according to weight ratio: 100 of water-soluble organic acid and 3-28 of sugar. The weight ratio of raw materials is 100 of water-soluble organic acid and 3-28 of sugar, and the extraction agent further comprises water of which the weight is 5-18 times as that of the above raw materials. The water-soluble organic acid is selected from fulvic acid, acetic acid, complex acid obtained from plant fermentation, citric acid and lactic acid; the sugar is selected from maltose, sucrose, fructose, konjac powder and agar. The extraction agent has the advantages of low cost, easy operation and use, no influence on coal quality, good effect, ability of improving the gas extraction effect of coal mines dramatically, no obvious influence on underground operation staff and equipment, high security and high efficiency.

The invention discloses a formula and a processing technique of composite flower and fruit brewing jam, belonging to the field of food processing. Edible flowers and fruits are taken as main ingredients to be mixed with raw materials such as syrup and white granulated sugar, then cooked, sterilized and filled to form a finished product, namely the composite flower and fruit brewing jam. The processing technique comprises the technological steps of dissolution of colloid, blending of the syrup, addition of the flowers and fruits, preparation of starch paste, addition of condiment citric acid, coloring, addition of essences, filling, and cooling. The flower and fruit brewing jam provided by the invention takes honey-soaked flower petals and fruits as main carriers and has the advantages of being scientific and reasonable in proportion, good in taste, nutritional, healthy and the like.

The invention provides a preparation method of a rose collagen peptide beverage with a function of maintaining beauty and keeping young. The product (namely the rose collagen peptide beverage) comprises the following components in parts by mass: 76-90 parts of multi-petal red rose extract, 4-8 parts of roselle extract, 0.5-4.5 parts of collagen peptide, 1-3 parts of concentrated fruit juice, 1-2 parts of rose cell liquid, 1-2 parts of resistant dextrin, 1-2 parts of L-arabinose, 0.6-1.2 parts of a stabilizer, 0.5-1.0 part of trehalose, 0.05-0.15 part of sodium citrate, 0.1-0.2 part of citric acid, 0.002-0.004 part of sucralose and 0.2-0.4 part of an antioxidant. The processing process comprises the following steps: extract preparation, proportioning, mixing, filtration, filling, sterilization and cooling. The beverage has a scientific formula and a simple preparation method. The prepared product not only contains collagen peptide, dietary fibers and a plurality of other nutrients, butalso has the characteristics of being tasty with slight sweetness and sourness, strong in rose fragrance, attractive in color and luster, high in stability and long in shelf life, and is a low-sugar and low-calorie healthy beverage for maintaining beauty and keeping young.

The invention discloses figwort root body wash. The figwort root body wash is prepared from, by weight, 1-10 parts of wood figwort root extract, 1-3 parts of artemisia vulgaris extract, 1-3 parts of sweet wormwood herb extract, 1-3 parts of fructus liquidambaris extract, 1-5 parts of sodium lauroamphoacetate, 1-10 parts of AES, 1-10 parts of lauryl sodium sulfate, 0.05-0.5 part of EDTA-2Na, 1-5 parts of glycine betaine, 1-3 parts of cocamidopropyl dimethylamine oxide, 1-5 parts of glycerin, 0.5-5 parts of sodium chloride, 0.1-1 part of citric acid, 0.1-1 part of figwort root essence and 100 parts of deionized water. The figwort root body wash has the effects of preventing and improving oily skins which are prone to inflammation and acne and beautifying skins.

The invention discloses a fresh flower preservative and a preparation method thereof. The fresh flower preservative is prepared from the following components in parts by weight: 70-80 parts of ethanol, 40-50 parts of ethyl pyruvate, 10-20 parts of citric acid, 8-15 parts of sodium citrate, 3-8 parts of sodium thiosulfate, 1-5 parts of stearic acid, 1-5 parts of salicylic acid, 0.5-2 parts of potassium sulphate, 1-5 parts of monopotassium phosphate, 5-10 parts of thiourea and 30-40 parts of water. The preparation method comprises the following steps: mixing ethanol and water, heating to 30-35 DEG C, adding with ethyl pyruvate, stirring for 10-20 min, then adding the other components, stirring for mixing uniformly, cooling to room temperature, and sealing for storage. With the fresh flower preservative, the flowering phase can be prolonged by 15-20 days on average, and meanwhile, fresh flowers with damaged branches, buds and leaves can bloom into bright flowers, so that the utilization ratio of the fresh flowers is greatly improved.

The invention discloses a preparation technology for establishing a compound edible preservative film on the surface of a fresh-cut purple yam. The preparation technology comprises the following steps: 1), taking oregano essential oil as a core material and taking beta-cyclodextrin as a wall material, prepare a beta-cyclodextrin-oregano essential oil microcapsule, then selecting chitosan as antibacterial film coating liquid as a base material, and mixing the beta-cyclodextrin-oregano essential oil microcapsule and the chitosan base material, so as to obtain antibacterial film coating liquid; 2), adding an appropriate amount of sodium alga acid into a citric acid water solution, so as to obtain color-protecting film coating liquid; 3), finally establishing the edible preservative film on the surface of a pretreated fresh-cut purple yam through a layer-by-layer assembly method. The preparation technology is simple, and the formed compound preservative film for the preservation of the fresh-cut purple yam is safe, green and edible, and can inhibit the growth of microorganism on the surface of the fresh-cut purple yam while performing preservation on the fresh-cut purple yam, thereby prolonging the shelf life of the fresh-cut purple yam.

The invention discloses a modifier for quick-frozen wonton wrappers. The modifier comprises sodium alginate, citric acid, vitamin C, calcium stearyl lactylate, sodium tripolyphosphate, sodium pyrophosphate, table salt, dietary alkali, semen cassiae gum and mannitol. The modifier for the quick-frozen wonton wrappers, disclosed by the invention, effectively solves the problems that quick-frozen wontons are easy to crack, the appearance, the color and the mouth feel of the quick-frozen wontons become bad, and the quick-frozen wontons are not resistant to cook with water, and besides, the made wonton wrappers are good in mouth feel and rich in nutrition. The modifier for the quick-frozen wonton wrappers, disclosed by the invention, is good in solubility, good in mixing property, high in safety, simple and convenient to use, and rich in nutrition; besides, the problems that the wonton wrappers are easy to crack due to thin wrappers and the color of the wonton wrappers is dark in the process of processing, cooking, freezing and melting the wonton wrappers can be solved.

The invention discloses a preparation method of pitaya juice. The method comprises: step (1): separating pitaya peel from pitaya pulp, reserving the inner layer of the pitaya peel, dicing the pitaya peel, and dicing the pitaya pulp; step (2): mixing the diced pitaya peel and water in a mass ratio of 1: 2, adding pectinase to the peel paste, stirring uniformly, and standing the peel paste added with the pectinase at the temperature of 30-35 DEG C for 30-35 min; step (3): adding the pulp paste to the peel paste, and stirring the mixture for 20-30 min at the temperature of 40-45 DEG C; step (4): adding water and citric acid to the paste of the step (3); step (5): sterilizing at a high temperature of 99 DEG C for 8s; and step (6): cooling to 2 DEG C, thus obtaining finished pitaya juice. By deep processing of the peel and the pulp, the pitaya juice with good mouthfeel and high nutritional value is prepared.

The invention discloses a copper cleaning agent and a preparation method thereof, and belongs to the technical field of additives. The copper cleaning agent comprises the following raw materials in parts by weight, 15-20 parts of citric acid, 10-20 parts of sodium citrate, 5-10 parts of nonionic surfactant, 3-8 parts of penetrating agent, 3-8 parts of anionic surfactant, 2-3 parts of solubilizer,5-10 parts of antioxidant and 30-50 parts of water. The copper cleaning agent has the advantages of simple manufacturing process, easy operation, low price and easy availability of raw materials, no toxicity and harm, no harm to human bodies and no damage to base materials.

The invention relates to a high-activity multifunctional laundry bead and a preparation method thereof, and belongs to the technical field of daily chemical detergents. The laundry bead is prepared from dodecyl benzene sulfonate, dodecyl benzene sulfonic acid monoethanol amine salt, oleic acid monoethanol amide polyoxyethylene ether, fatty acid methyl ester ethoxylate, amine oxide, an organic silicon compound, deionized water, propylene glycol, an re-deposition resistant agent, triisopropanol amine, an anti-cross-color agent, a bacteriostatic agent, a compound enzyme, a water softener, a fluorescent whitening agent, a preservative, citric acid, essence and perfume. The raw materials are uniformly mixed and stirred, the pH is adjusted, then discharging is carried out, and finally packagingis performed to obtain the laundry bead. By adding a little amount of solvent and the dissolving property of a nonionic surfactant, the active matter content of the laundry bead can reach 80% and is 3-4 times higher than that of a traditional detergent in the market.

The present invention provides a highly acidic sports nutrient solution and a preparation technology thereof. The highly acidic sports nutrient solution comprises proteins, carbohydrates, edible fat,sodium starch octenyl succinate, citric acid or a salt thereof and water; and wherein the weight ratio of the edible fat and sodium starch octenyl succinate is 1:(1-1.5). A UHT sterilization method isused; and cold filling is used to obtain the product. The nutrient solution is stable during the shelf life, commercial and aseptic, and consistent in taste and mouthfeel, can effectively alleviate muscle fatigues, prevents muscle damages, promotes growth of athletes' strength and endurance, has extremely strong practicability and can be subjected to a large-scale production.

The invention discloses an antibacterial whitening mouthwash and a preparation method thereof. The antibacterial whitening mouthwash comprises an antibacterial component and a mouthwash matrix component, wherein the antibacterial component comprises 0.05 to 0.5 part of lysozyme, 0.01 to 0.5 part of lauryl arginine ethyl ester hydrochloride, 0.01 to 1 part of dextran anhydrase and 1 to 10 parts ofabelmoschus manihot extract. A substrate component of the mouthwash comprises one or more of an emulsifier, a moisturize, a flavoring, an acid-base conditioner and an essence, and the balance is deionized water. Lysozyme and lauryl arginine ethyl ester hydrochloride are dissolved in a citric acid solution and uniformly stirred; the prepared ingredients are mixed with the emulsifier, moisturizer, flavoring and essence evenly, pH is adjusted, and abelmoschus manihot extract and dextran enzyme are added. The invention makes the synergistic effect between the natural antibacterial agent and the chemical antibacterial agent exist, and the mouthwash produced by the invention has high safety and good antibacterial activity, and can effectively prevent and control the occurrence of dental plaque and oral inflammation.

The invention discloses an improved coconut shell and a method thereby for reducing vanadium in a water body, and belongs to the field of metallurgy. The invention aims to solve the technical problemthat the improved coconut shell and the method thereof for reducing the vanadium in the water body are provided. The modified coconut shell is prepared in the following steps: the coconut shell is washed, dried and smashed to obtain a powdery material; the powdery material is mixed with a citric acid solution and absolute ethyl alcohol and is subjected to oscillation and suction filtration to obtain a filter cake; the filter cake is washed and dried to obtain the modified coconut shell. The method for reducing the vanadium in the water body by the above coconut shell comprises the following steps: mixing the modified coconut shell and vanadium containing wastewater; carrying out oscillation and suction filtration to obtain purified solution. According to the method, the improved coconut shell is used for reducing the vanadium in the water body, wastes are reused, the vanadium in wastewater can be effectively recovered and utilized, the influence of the vanadium on environment is lightened, and the method has an obvious social benefit.

The invention relates to the field of aluminum alloys, in particular to an aluminum alloy and a preparation method thereof. The aluminum alloy comprises an aluminum alloy matrix and a hard anodic oxide film located on the surface of the aluminum alloy matrix. The surface of the hard anodic oxide film is provided with micropores. Particles generated in the hard anodic oxidation process adhere to the inner walls of the micropores. The preparation method comprises the steps that, an aluminum alloy precursor needing to be treated is subjected to S1 alkali cleaning, S2 pickling, S3 acid etching, S4hard anodic oxidation, S5 hot water washing, S6 passivation and S7 sealing, thus the aluminum alloy is obtained, wherein an electrolyte used in hard anodic oxidation in the S4 comprises the components of phytic acid, oxalic acid, citric acid, boric acid and lactic acid. The prepared aluminum alloy is higher in corrosion resistance, higher in hardness and better in wear resistance, and can be applied to the fields of aerospace, aviation and computer manufacturing, automobile and rail train manufacturing and the like.

The invention relates to a chromizing and aluminizing process for an aero-engine blade, and belongs to the technical field of aviation equipment. The blade obtained through the method of sand blowing,cleaning, blending, stirring, protecting, loading to a tray, loading to a rack, loading to a can, exhausting, heating, furnace charging, chromizing and aluminizing, cooling, taking out of the can, cleaning, polishing and brushing, citric acid washing, cleaning, blow-drying, inspecting, diffusing and final inspecting has the advantages that the surface state of a permeated layer is uniform and consistent, and the depth of the permeated layer is uniform and consistent.

The invention discloses attapulgite shampoo for defending lose-hair and dispelling scurf, which has the technical proposal that the attapulgite shampoo for defending lose-hair and dispelling scurf is composed of modified pasty attapulgite clay, cacumen biotae, honeysuckle, angelica, zinc pynithione, sodium lauryl sulfate, cocamidopropyl betaine, citric acid, nipagin methyl ester, nipagine propyl ester and deionized water. The attapulgite shampoo for defending lose-hair and dispelling scurf has the prodution method of purification, sodium modification, acidification, feed proportioning, pulverization and beating, grinding, high-speed stirring, emulsification, vacuum degassing and canning for obtaining the finished product of attapulgite shampoo for defending lose-hair and dispelling scurf. The attapulgite shampoo for defending lose-hair and dispelling scurf can speed up the blood circulation of scalp, promote hair metabolism, effectively control sebum extravasation, dispel scurf, prevent scalp itching, delay hair aging, and reduce lose-hair and white hair generation. The attapulgite shampoo for defending lose-hair and dispelling scurf is suitable for the hairdressing and nursing of defending lose-hair and dispelling scurf.

The invention relates to the technical field of white spirit commodity quality detection, in particular to a microwave digestion graphite furnace atomic absorption analysis method for measuring tracelead in white spirit. The method comprises the following steps that: S1: carrying out sampling and digestion; S2: preparing matrix modifier solution; S3: preparing sample solution; S4: preparing reference substance solution; S5: preparing a lead standard curve; and S6: measuring the content of sample lead. The method has the beneficial effects that the mixed solution of citric acid, polysorbate 80, ammonium dihydrogen phosphate and palladium nitrate is taken as the matrix modifier, a reduction atmosphere is formed in the graphite furnace, lead oxide reduction is enhanced, a situation that background adsorption interference is generated due to matrix evaporation during high-temperature atomization is avoided, analysis accuracy is improved, the polysorbate 80 serves as the solubilizer of thematrix modifier solution, condensed phase interference and gaseous phase interference are lowered, and in addition, the capability of the matrix modifier on inhibiting lead element volatilization canbe improved.

The invention discloses a preparation method of fulvic acid apple health care vinegar drink. The preparation method comprises the following steps: preparing apple juice; preparing yeast activated liquid special for fruit wine for later use; inoculating the obtained yeast activated liquid special for fruit wine into the apple juice, thus obtaining fruit wine fermented liquid; adjusting the alcohol content of the fruit wine fermentation liquid, and inoculating the fruit wine fermentation liquid into fruit vinegar bacteria for acetic acid fermentation culture; putting acetic acid fermented liquid into a boiled water bath for sterilization for 10 minutes, and cooling and centrifugating the acetic acid fermented liquid, thus obtaining a coarse product of apple health care vinegar drink; uniformly blending and mixing the coarse product of the apple health care vinegar drink with fulvic acid, fructose syrup and citric acid according to various ratios, thus obtaining the fulvic acid apple health care vinegar drink. According to the method, fulvic acid is purified to meet the standard of the food industry and then added into verified apple vinegar drink with a health care function, thus obtaining the fulvic acid apple health care vinegar drink which tastes mellow and has various health care functions.