356 results about "Potassium sorbate" patented technology

The invention belongs to the field of fermentation, and particularly relates to a complex microbial inoculant, original cheese, processed cheese with a blood sugar reducing function and preparation and application of the complex microbial inoculant. Wherein the processed cheese is prepared by the method comprising the following steps: mixing the components including raw cheese, sugarcane juice, corn oil, casein, concentrated milk protein, blueberry powder, mono / diglycerol fatty acid ester, sodium citrate, sodium tripolyphosphate, sodium hexametaphosphate, salt guar gum, potassium sorbate and water, and then emulsifying to obtain the processed cheese, the sugar cane juice, the corn oil, the casein, the concentrated milk protein, the blueberry powder, the mono / diglycerol fatty acid ester, the sodium citrate, the sodium tripolyphosphate, the sodium hexametaphosphate, the salt guar gum, the potassium sorbate and the water, the original cheese is prepared from a complex microbial inoculant, and the complex microbial inoculant comprises lactococcus lactis bacterial powder, lactococcus lactis subsp. Lactis bacterial powder, lactobacillus delbrueckii subsp. Lactis bacterial powder, lactobacillus plantarum bacterial powder and lactobacillus paracasei bacterial powder. The processed cheese provided by the invention has a better function of controlling blood sugar, and meanwhile, the processed cheese is fine and uniform in texture and has good smearing performance.

The invention belongs to the technical field of emulsion preparation, and particularly relates to cinnamon essential oil emulsion as well as a preparation method and application thereof. The cassia bark essential oil emulsion is prepared by jointly emulsifying cassia bark essential oil by utilizing a Chinese honeylocust fruit water extract and soybean protein isolate. The production process is simple, the production cost is low, large-scale production is facilitated, and the prepared cinnamon essential oil emulsion has good storage stability at the temperature of 4 DEG C and also shows excellent electrolyte, pH value, temperature and freeze-thaw stability. The method is suitable for the fields of food, packaging materials, medicines and the like, and the preservation capacity of the prepared cinnamon essential oil emulsion can be comparable with that of a commercial food preservative potassium sorbate.

The invention relates to the technical field of medical gel, in particular to gynecological vaginal mucosa repairing gel and a preparation method thereof. Comprising the following raw materials: carbomer, glycerol, sodium hyaluronate, vitamin E, potassium sorbate, a modified nano polylactic acid-glycolic acid copolymer, modified nano collagen, albumin, tea tree essential oil, aloe, astragalus membranaceus, dandelion, stigma croci and ginseng. The modified nano polylactic acid-glycolic acid copolymer, the modified nano collagen and the albumin play a role through a synergistic effect, and the modified nano polylactic acid-glycolic acid is used as a skeleton structure for cell growth and is firmly attached to the active pharmaceutical ingredient-albumin compound; the polyacrylic acid chain on the surface controls the drug release rate by sensing the change of the pH value, the albumin initiates endocytosis through specific binding, and the albumin and the modified nano collagen jointly improve the anti-inflammatory performance, promote cell proliferation and differentiation and promote repair and regeneration of vaginal mucosa tissues.

The invention relates to a preparation method and application of a corn straw beverage, belongs to the technical field of plant resource processing, and solves the technical problem of activity loss caused by easy oxidative degradation of flavonoid compounds in a corn straw water extract. According to the technical scheme, the method comprises the following steps: crushing corn straws, soaking in water, performing heat extraction for multiple times to obtain an extracting solution, performing rough filtration and centrifugation, and concentrating to obtain a water extracting solution; and mixing the water extract, sucralose, citric acid, potassium sorbate and purified water to prepare a beverage, sterilizing and filling. Flavonoid compounds are embedded through a potato starch nanoparticle and beta-cyclodextrin composite carrier, a sodium alginate-chitosan microcapsule double-layer coating and microcapsule jelly particle preparation technology is combined, a gel network is formed by compounding kappa-carrageenan and konjac glucomannan, and the embedding stability and release controllability of active ingredients are improved. The beverage prepared by the method has both herbal flavor and crisp and tender taste of jelly particles, effectively delays degradation of flavonoid compounds, and is suitable for being applied to development of functional plant beverages.

The invention discloses a special feed for breeding bumblebee pollination swarms and a preparation method thereof, and belongs to the technical field of insect feed preparation, and the special feed for breeding the bumblebee pollination swarms comprises the following raw materials: white granulated sugar, glucose, potassium sorbate, epsilon-polylysine, vitamins, trace elements and water; the preparation method comprises the following steps: adding the white granulated sugar and the glucose into boiling water, uniformly stirring, cooling, adding the vitamins, the trace elements, the potassium sorbate and the epsilon-polylysine, uniformly stirring, and cooling to room temperature. The components such as the sugar source, the vitamins and the preservative are introduced to achieve a synergistic effect, so that the freshness of the sugar water is guaranteed, the intake of nutrient substances by the bee colony is improved, the survival rate of the bee colony is effectively increased, the development time of the early-stage bear bee colony is shortened, the growth speed of the early-stage pollination bee colony is accelerated, and the colony potential of the bee colony before pollination is increased.

The invention relates to the technical field of fire extinguishing agents, and particularly discloses a lithium battery fire extinguishing agent and a preparation method thereof. The degradable surfactant is selected from at least one of alkyl glycoside and fatty acid methyl ester sulfonate; the particle size of the nanoscale silicon dioxide particles is 10 to 100 nm; the composite flame retardant is formed by compounding an organic phosphorus compound and graphene oxide according to a mass ratio of 1: (0.5-2); the antifreeze agent is selected from at least one of ethylene glycol and propylene glycol; the thickening agent is selected from at least one of xanthan gum and sodium carboxymethyl cellulose; the preservative is selected from at least one of sodium benzoate and potassium sorbate; through the synergistic effect of the composite flame retardant, the fire extinguishing efficiency is remarkably improved, reburning is inhibited, in addition, nano silicon dioxide is uniformly dispersed after being subjected to surface modification to form a compact heat insulation layer, the degradable surfactant and the environment-friendly preservative are combined, and the agent is free of toxic residues.

The invention provides an intestine moistening and bowel relaxing composition as well as a preparation method and application thereof. The intestine moistening and bowel relaxing composition is prepared from the following raw materials in parts by weight: 5 to 10 parts of compound fruit and vegetable fermentation liquor, 2 to 4 parts of compound fruit concentrated juice, 0.01 to 0.02 part of compound probiotic powder, 17 to 27 parts of prebiotics, 0.1 to 0.15 part of DL-malic acid, 0.05 to 0.1 part of citric acid, 0.005 to 0.01 part of sodium citrate, 0.01 to 0.02 part of potassium sorbate and 59 to 65 parts of water. The preparation method comprises the following steps: S1, preparing a mixed solution A; s2, preparing a mixed solution B; s3, preparing a mixed solution C; s4, preparing composite fruit and vegetable fermentation liquor; s5, mixing; and the prepared composition for relaxing bowel can be applied to products for relaxing bowel, and has the effects of cleaning intestinal waste, relaxing bowel and regulating intestinal flora.

The invention discloses red imported fire ant bait and a preparation method thereof. The invention relates to a red imported fire ant bait, which is prepared from the following components in percentage by mass: 56.76 percent to 61.99 percent of corn flour, 16.57 percent to 18.85 percent of dried meat floss, 16.50 percent to 18.90 percent of peanut oil, 3.08 percent to 4.22 percent of milk powder, 0.01 percent to 0.10 percent of ethyl butyrate, 1.34 percent to 1.70 percent of potassium sorbate and 0.01 percent to 0.50 percent of insecticide. Compared with the prior art, the solenopsis invicta bait has the following advantages that on the basis of background baits (corn flour, dried meat floss, peanut oil and milk powder), potassium sorbate keeps the freshness of the baits, a trace amount of ethyl butyrate is added, the appetite of solenopsis invicta is further stimulated, the palatability of the baits to the solenopsis invicta is improved, and the service life of the solenopsis invicta bait is prolonged. Particles with the average particle size of 1.5 mm are prepared through a pelletizer and are suitable for carrying of the solenopsis invicta, so that the attraction of the bait to the solenopsis invicta is further enhanced.

The invention relates to the technical field of termite trapping and killing, and particularly discloses an environment-friendly termite trapping and killing strip and a preparation method thereof. The environment-friendly termite trapping and killing strip is prepared from microcrystalline cellulose, sodium carboxymethyl cellulose, potassium sorbate, pine sawdust, tapioca flour, xanthan gum and killing microcapsules. The killing microcapsule comprises a capsule wall and a capsule core, wherein the capsule core is prepared from the following raw materials: triflumuron, diflubenzuron, ammonium chloride, petroleum ether and sodium dodecyl benzene sulfonate; the capsule wall is prepared from the following raw materials: modified chitosan, sodium alginate, modified corn straw powder, Arabic gum and a sugarcane extract. According to the environment-friendly termite trapping and killing strip, all the components are matched, the excellent insecticidal effect is achieved, the pesticide can be slowly released through the killing microcapsules, the insecticidal time is prolonged, and the prepared trapping and killing strip can kill insects for a long time.

The invention belongs to the technical field of seasoning processing, and particularly discloses salad dressing capable of improving the stability of natural pigments and a preparation method of the salad dressing. The salad dressing capable of improving the stability of the natural pigment comprises the following raw materials: high fructose corn syrup, yolk liquid, white granulated sugar, potassium sorbate, lemon concentrated juice, table vinegar, water, glycerol, the natural pigment, titanium dioxide, sucrose fatty acid ester, edible salt, xanthan gum, soybean oil, acetylated distarch adipate, sodium ascorbate, mustard powder and a rosemary extract. The HLB (Hydrophile Lipophile Balance) value of the sucrose fatty acid ester is The synergistic effect of all the components is remarkable, multiple defense lines of oxidation resistance, system stability, corrosion prevention and the like are constructed, and the probability of natural pigment fading in the salad dressing storage process is reduced.

The invention belongs to the technical field of biochemistry, and particularly discloses plant-derived halitosis-resistant mouth wash which comprises a SEQNO: 1 small molecule peptide extracted from mint leaves, a SEQNO: 2 small molecule peptide extracted from clove and a novel organic compound 5-(2-aminoethyl)-3-hydroxy-2-methyl-4H-pyran-4-one (AEHMP). The mouthwash further comprises the following components: deionized water, propylene glycol, lauryl alcohol polyether-9 carboxylate, menthol, citral, potassium sorbate and the like. The preparation method comprises the following steps: firstly extracting and purifying the small molecule peptide and synthesizing the AEHMP, and then mixing the components in proportion to obtain the mouthwash. The mouthwash disclosed by the invention can be used for effectively inhibiting odorous bacteria in the oral cavity, reducing the generation of volatile sulfides and freshening breath, is natural and safe, is optimized in formula and can be used for maintaining the micro-ecological balance of the oral cavity.

The invention provides a kind of gel material, including the following components: agar, carrageenan, konjac gum, additives; The mass ratio of described agar, carrageenan, konjac gum is 18-22:1-5:1-5; The described additives include potassium dihydrogen phosphate, potassium sorbate, food coloring. The venipuncture model of the present invention is a highly simulated human blood vessel model, which can simulate real human blood vessel structure, so that learners can perform practical operation in a simulated environment, improve learning effect, adopt agar as main material, simple to make, with low cost, convenient for large-scale production and promotion, single model single point can actually enter needle puncture and reach more than 70 times, improve mold service life, and reduce cost.

The invention relates to a making method of a daylily instant vegetable bag, and belongs to the technical field of food processing. The convenient vegetable bag is prepared by taking dried daylily as a raw material and supplementing with seasonings in an accurate ratio through a series of processing steps. The nutritional ingredients of the day lily are reserved, the flavor is improved through careful seasoning, and vacuum packaging is adopted, so that the day lily is convenient to store and eat. The product can be eaten after the bag is opened and can also be eaten after being heated, and the requirement for convenient and healthy food in the modern fast-paced life is met. Based on the dry weight of the day lily, the condiment comprises the following components in percentage by weight: 1 to 3 percent of white sugar, 2 to 3 percent of monosodium glutamate, 0.01 to 0.1 percent of disodium 5 '-ribonucleotide (I + G), 0.050.1 percent of D-sodium erythorbate, 1 to 2.5 percent of table salt, 0.04 to 0.08 percent of citric acid, 0.01 to 0.03 percent of glacial acetic acid, 0.05 to 0.012 percent of lactic acid, 0.005 to 0.01 percent of potassium sorbate, 0.001 to 0.01 percent of sodium pyrosulfite, 0.1 to 0.3 percent of garlic flavor powder, 0.5 to 1 percent of spicy flavor powder and 0.5 to 1 percent of beef flavor powder. The seasoning is prepared from the following raw materials in percentage by weight: 0.5 to 1 percent of strong-fragrance spicy oil, 1 to 3 percent of red oil, 0.001 to 0.015 percent of 10 percent chilli extract, 0.001 to 0.15 percent of capsanthin, 0.05 to 1 percent of beef-flavor essence paste and 2 to 2.5 percent of spicy essence paste.

The invention discloses a feed for feeding cordyceps sinensis host hepialus larvae as well as a preparation method and application of the feed, and relates to the technical field of artificial feeds. The feed comprises the following components in parts by weight: 5-20 parts of beer yeast powder and / or casein, 30-80 parts of wheat germ powder, 20-40 parts of carrot powder, 0.2-5 parts of a modified preservative, 0.05-0.2 part of antibiotics, 0.2-5 parts of vitamins, 0.01-1 part of edible oil, 6-15 parts of agar and 200-400 parts of water. The modified preservative is composed of a chitosan oligosaccharide-natamycin compound subjected to plasma activation treatment and potassium sorbate according to the ratio of 1: 3-1: 5; a modified preservative composed of a chitosan oligosaccharide-natamycin compound subjected to plasma activation treatment and potassium sorbate is adopted, a porous microsphere structure is formed through a specific preparation process, and the contact area of the preservative and the feed is greatly increased. Agar and water form a gel matrix at a specific temperature, and nutritional ingredients and the like are injected into a coaxial micro-fluidic device, so that the preservative effect of the feed is remarkably enhanced.

The invention discloses an oyster enzymolysis ultrafiltration extract nasal spray and a preparation method thereof, the nasal spray comprises the following components: 5-10 wt% of oyster extract, 0.1-0.3 wt% of preservative, 0.05-0.15 wt% of sodium chloride and 0.1-0.3 wt% of emulsifier, the pH value is 5.5-6.5, the content of the preservative is 0.1-0.3 wt%, the content of the sodium chloride is 0.05-0.15 wt%, the content of the emulsifier is 0.1-0.3 wt%, and the balance is water. The preservative is one of benzalkonium chloride, sorbic acid and potassium sorbate, and the emulsifier is polysorbate 80. Through definite raw material composition, a step-by-step process and quality control, the bioavailability of active components is improved, the flavor of the product is optimized, the effect of safely and efficiently improving sleep is achieved, the problems of low bioavailability, poor flavor and potential safety hazards of an existing sleep improving product are solved, the process repeatability is high, and the preparation method is suitable for industrial production. The long-term use of people with chronic insomnia is facilitated.

The invention discloses oral multi-effect analgesic and anti-inflammatory gel and a preparation method thereof, and belongs to the technical field of medical gel. The gel is prepared from mussel mucin grafted hydroxypropyl chitosan, a poly (N-isopropylacrylamide)-co-acrylic acid copolymer, quercetin-zinc coordination nanoparticles, a local anesthetic compound wrapped by temperature-sensitive lipidosome, a gamma-polyglutamic acid-catechin gel matrix, aloe polysaccharide, dipotassium glycyrrhizinate, and sodium hyaluronate and potassium sorbate which can be selectively added, wherein the local anesthetic compound is prepared from the mussel mucin grafted hydroxypropyl chitosan, the poly (N-isopropylacrylamide)-co-acrylic acid copolymer, the quercetin-zinc coordination nanoparticles, the temperature-sensitive lipidosome, the gamma-polyglutamic acid-catechin gel matrix, the aloe polysaccharide and the dipotassium glycyrrhizinate. During preparation, part of the components and water are stirred to obtain a mixed solution, and then the other components are added and stirred into gel. According to the gel, the leakage rate of local anesthetics is reduced by stabilizing the liposome through the zinc ions, the quercetin adjusts the phase transition temperature of the liposome to realize preferential drug release at the pain part, the mussel mucin and the copolymer form a reversible hydrogen bond network to enhance the mucous membrane adhesive force, and the inflammatory environment triggers the gel permeation drug release, so that the gel has the advantages of multiple-effect synergy, strong adhesion and the like; the problems that existing oral gel is short in analgesia time and insufficient in anti-inflammation can be effectively solved.

The invention relates to the technical field of agricultural pest control, and particularly discloses a preparation method of an apolygus lucorum food attractant based on a composite plant extract. A preparation method of the apolygus lucorum food attractant based on the composite plant extract comprises the following steps: S1, treating a sesame raw material: taking the sesame raw material and crushing; s2, sesame extraction: taking the sesame particles obtained in S1, adding an ethanol water solution, performing ultrasonic-assisted extraction, and filtering to obtain a filtrate; s3, sesame concentration: performing vacuum concentration on the filtrate obtained in S2 to obtain a sesame extract; s4, material preparation: weighing corn germ powder, soybean powder, rice bran powder, a plant attractant methyl jasmonate, a saccharide aid maltitol and an antibacterial agent potassium sorbate, and uniformly mixing; s5, extracting; s6, mixing; and S7, drying and forming. The preparation method provided by the invention can be used for producing the special food attractant with slow release characteristic and high biological activity for the apolygus lucorum, and has the advantages that volatile active ingredients are efficiently dissolved out, and the structure is complete and reserved.

The invention belongs to the technical field of cigarette adhesives, and particularly relates to an environment-friendly moisture-proof high-speed cigarette adhesive and a preparation method thereof. The environment-friendly moisture-proof high-speed cigarette adhesive is prepared from the following components in percentage by weight: 10-15% of corn starch coprecipitation composite modified crosslinked soybean protein, 1-3% of polyacrylic acid, 1-3% of polyvinyl alcohol, 2-5% of hydroxyethyl cellulose, 0.5-1% of potassium sorbate, 0.5-1% of lauryl sodium sulfate, 2-5% of urea resin, 60-70% of VAE emulsion and the balance of water. The environment-friendly moisture-proof high-speed cigarette adhesive has excellent water solubility and stability, is extremely low in volatile organic compound content, can provide good adhesive force on different surfaces, ensures the structural stability of cigarettes, has a relatively high moisture evaporation speed, can be rapidly cured in a cigarette production line, and has a good application prospect. Meanwhile, very excellent hydrostatic pressure resistance and good waterproof and moistureproof performance are achieved.

A composition (100) for inhibiting growth of microbial contamination is disclosed The composition includes a plurality of volatile antimicrobial components (110) including at least one of potassium sorbate and sorbic acid. The composition further includes a plurality of non-volatile antimicrobial components (120) including natamycin. A weight ratio of the plurality of volatile antimicrobial components to the plurality of non-volatile antimicrobial components is in the range of 10:2 to 10:1. The composition is placed at a distance from a target surface to inhibit microbial growth on the target surface by releasing the plurality of volatile antimicrobial components and the plurality of non-volatile antimicrobial components into a surrounding air. The target surface is exposed to microbial contaminants. moisture and humidity.

The present invention discloses the application of serine in the feed of Coccinella septempunctata, belonging to the field of feed. It also discloses the feed of Coccinella septempunctata added with serine, and its raw material composition is: dried fly maggot pupae powder, dried goose liver powder, rose pollen, dried kiwifruit powder, sucrose, olive oil, purified water, potassium sorbate, serine. Through the improvement of materials, the present invention improves the feeding effect of female Coccinella septempunctata, and by controlling the content of serine, more precise control is carried out on the egg-laying amount, feeding frequency, egg hatching rate and adult survival rate, improving the survival rate, egg hatching rate and egg-laying amount of Coccinella septempunctata, which is more beneficial to the feeding of female Coccinella septempunctata, and the cost is greatly reduced compared with the prior art.

The invention discloses a preparation method of a predatory mite feed and a predatory mite feeding method. The predatory mite feed comprises a basic artificial feed and biomass, the basic artificial feed comprises egg yolk liquid, yeast extract powder, cane sugar, honey, purified water, peptone, potassium sorbate and p-hydroxybenzoate; the preparation method comprises the following steps: fully mixing the components into a semi-fluid mixture, and freeze-drying the semi-fluid mixture into a solid state at low temperature by using an instantaneous low-temperature freeze-drying technology to obtain the predatory mite feed. The predatory mite freeze-dried feed is prepared to be used for feeding predatory mites, a traditional feeding scheme of plants-pest mites-predatory mites can be replaced, the whole feeding process is simple, conditions are controllable and easy to control, and the feeding difficulty and the feeding cost are effectively reduced; meanwhile, the predatory mite feed is prepared into a freeze-dried state, the feed utilization rate can be increased, the predatory mites can easily eat the feed, and therefore the breeding efficiency of the predatory mites is improved.

The invention discloses wormwood acarid-removing granules and preparation equipment and method, the wormwood acarid-removing granules comprise a base material, wormwood powder and auxiliary materials, and the formula comprises the following components in percentage by weight: 35% of base material attapulgite clay powder and 20% of wormwood powder; the auxiliary materials comprise 10% of purple perilla, 10% of mint, 15% of radix stemonae and 15% of green prickleyash; based on the total weight of 100 parts of the basic auxiliary materials, the auxiliaries comprise 2-4 parts of sodium carboxymethyl cellulose, 0.5-0.8 part of potassium sorbate and 6-12 parts of deionized water, and the particle size of finished product particles is 1-5 cm. Through the arrangement of a driving rod, a stirring rod, a circular plate and a T-shaped rod, in the stirring and mixing process of mixed powder in a mixing cavity, a baffle continuously keeps blocking a discharging groove, it is ensured that all kinds of powder are not fully mixed, after mixing is completed, blocking of the discharging groove by the baffle is relieved, and the stirring rod can push the mixed powder to pass through the discharging groove, so that the mixing efficiency is improved. According to the preparation method, the raw materials enter the screw extruder, so that the preparation of the wormwood acarid-removing particles is completed, dust generated in the production environment is reduced, and meanwhile, the preparation efficiency of the wormwood acarid-removing particles is also improved.

This invention discloses a fruit juice jelly soda and its preparation method, relating to the field of food processing technology. The fruit juice jelly soda comprises liquid materials and carbon dioxide gas, with a volume ratio of liquid materials to carbon dioxide gas of 1:(1-2). The liquid materials comprise the following raw materials in parts by weight: 1000 parts water, 50-100 parts fructose syrup, 30-50 parts carbonated white sugar, 10-50 parts concentrated fruit juice, 5-10 parts sodium chloride, 5-10 parts compound thickener, 1-5 parts anhydrous citric acid, 1-3 parts potassium sorbate, 0.01-0.1 parts food coloring, and 1-3 parts food flavoring. The fruit juice jelly soda of this invention combines the flavor of fruit juice jelly with the refreshing taste of carbonated soda.

The present application provides a kind of complex probiotic paste, which combines Enterococcus faecalis, Saccharomyces cerevisiae and vitamin B 12 Producing lactic acid bacteria of canine source, adds prebiotics, flavoring substances and auxiliary substances such as paste matrix preparation.In the paste, the viable count of Enterococcus faecalis, Saccharomyces cerevisiae and lactic acid bacteria is 1-2:1-2:1-8;Paste matrix includes fructooligosaccharide 0.5-3%, psyllium husk powder 0.1-2%, goat milk powder 2-8%, chicken liver powder 1-5%, potassium sorbate 0.5-2%, xanthan gum 1-4%, and the balance is water.The above-mentioned complex probiotic paste can be stably stored for 56 days at 4 DEG C and normal temperature dry place, has good storage stability, good safety, and can adjust intestinal flora and increase the content of intestinal lactic acid bacteria.The above-mentioned complex probiotic paste has good palatability and oral tolerance for pets such as dogs and cats, and has good therapeutic effect on DSS-induced chronic enteritis diarrhea and vitamin B 12 Deficiency.

The invention relates to a production process of borscht bags. Comprising the following steps: step 1, mixing yeast, iodine salt, white granulated sugar, potassium sorbate, water, egg pulp and a fermentation promoting agent, and stirring until the white granulated sugar is melted to obtain a mixture A; step 2, adding bread wheat flour into the mixture A, and continuously stirring at a second rotating speed to obtain a mixture B; step 3, adding butter into the mixture B, stirring at a first rotating speed, and then stirring at a second rotating speed to obtain a mixture C; step 4, adding vegetable oil into the mixture C, and stirring at a second rotating speed to obtain dough; and step 5, cutting, shaping, rolling, standing and baking the dough to obtain the borscht. The borscht which is good in flexibility, uniform in size and good in taste is formed by mixing the raw materials according to the specific combination, dosage and rotating speed. The process can be used for large-scale continuous industrial production, and compared with small-scale production, the production efficiency is improved, and meanwhile better comprehensive quality is obtained.

The present application relates to the field of natural gas decarburization, and discloses a decarburization solvent, a decarburization method and system of carbon-containing natural gas, the decarburization solvent comprising a main agent, an activator and an auxiliary agent; wherein the main agent is N-methyldiethanolamine, the activator comprises a primary amine and a secondary amine, and the auxiliary agent is selected from at least one of potassium sorbate, sodium sorbate and sodium sulfite.The decarburization solvent and the decarburization method provided by the present application can not only make the absorption and regeneration equipment flexible to follow the change of the CO2 content of the raw gas in the natural gas development process and expand, but also avoid the corrosion and foaming of the tower equipment in the conventional process; meanwhile, the absorption and regeneration performance of the decarburization solution can be improved under the condition of meeting the purification index, and the regeneration heat consumption and the power consumption for pressurization of the amine liquid circulation can be greatly reduced.

The invention relates to a sodium dichloroisocyanurate composite polishing solution capable of improving indium phosphide removal rate and surface quality. The polishing solution is prepared from the following components: nano silicon dioxide with the concentration of 8.0 to 12.0 weight percent, an oxidant with the concentration of 0.8 to 1.1 weight percent, a complexing agent with the concentration of 0.8 to 1.1 weight percent, a surfactant with the concentration of 200 to 500 ppm and the balance of deionized water, and the pH value of the polishing solution system is 8.9-9.1. The oxidizing agent is sodium dichloroisocyanurate; the complexing agent is potassium sorbate; according to the polishing solution, the removal rate and the surface quality of indium phosphide are obviously improved, and harmful gas is not generated to the maximum extent under the alkaline condition.

The present invention relates to a method for stabilizing an aqueous solution of beta amylase, in particular by using glycerol, potassium sorbate and sodium carbonate. The admixture of the additives is particularly effective over time in maintaining the enzymatic activity of the beta amylase. Another object of the invention consists of the use of said mixture for the specific function of maintaining the enzymatic activity of beta amylase. Another object of the present invention is to provide an aqueous solution of beta amylase comprising the above mixture. The final object of the invention consists of the use of said aqueous beta amylase solution for use in bread making, in the malt industry, as a food additive, as a digesting agent, for sweetener production, in pharmacy, and finally for the production of maltose and maltose-rich syrups.

The invention belongs to the technical field of pet food, and particularly relates to a collagen pet tooth cleaning bone and a preparation method thereof.The collagen pet tooth cleaning bone is prepared from, by weight, 60-100 parts of collagen, 10-30 parts of meat, 0-20 parts of edible powder, 1-10 parts of glycerinum, 1-3 parts of potassium sorbate, 0.2-1 part of vitamin E, seaweed extract and coconut oil, the addition amount of the seaweed extract is 0.1-0.5% of the amount of the collagen, and the addition amount of the coconut oil is 1-5% of the amount of the collagen; the collagen pet tooth cleaning bone is obtained through the working procedures of raw material pretreatment, ingredient stirring, extrusion molding and baking. The tooth cleaning bone is soft but sufficient in toughness, does not seriously wear pet teeth, can reduce pet halitosis and slow down the forming speed of dental calculus and dental plaque, and can be widely applied to pet oral cavity cleaning.

The present invention discloses an anti-nasal allergy gel, which comprises the following components in parts by weight: 0.1-2 parts of cellulose; 0.05-1 parts of chitosan salt or chitosan derivative; 0.1-0.2 parts of potassium sorbate or sodium sorbate; 0.8-0.9 parts of sea salt; 0.1-0.5 parts of xylitol, and 100 parts of deionized water; the chitosan salt is a substance shown in formula (1), wherein R is CI-, COO- or HSO4-, x and n are natural numbers, 0<x≤107, 102≤n≤107. Compared with the prior art, the present invention has the following advantages: the anti-nasal allergy gel can form a protective layer on the surface of the nasal mucosa, reduce and block dust, pathogens and other external irritants from direct contact with the nasal mucosa, and is used for daily health care of patients with nasal discomfort caused by various allergies or prone to allergic rhinitis, and can effectively reduce and prevent the incidence of allergic rhinitis.