65 results about "Dipotassium phosphate" patented technology

The invention relates to the technical field of production of dipotassium phosphate, discloses a process method for continuously producing food-grade anhydrous dipotassium phosphate, aims to obtain a food-grade anhydrous dipotassium phosphate product through a drying reaction in a rotary polymerization furnace by a one-step method, and effectively solves the problems of multiple control procedures, complicated process control and high production cost. The coke content is greatly reduced under the condition of ensuring the dipotassium phosphate content.

The invention discloses a dental whitening gel and a preparation method thereof, and belongs to the technical field of oral medicine. Comprising the following components in percentage by mass: 10%-20% of urea peroxide, 0.5%-1% of sodium alginate, 1%-2% of tea tree oil, 2%-3% of dipotassium phosphate, 2%-4% of monopotassium phosphate, 3%-5% of carbomer, 3%-5% of glycerol, 59%-78% of deionized water and 0.5%-1% of pentasodium diethylenetriamine pentaacetate. The oral cavity cleaning agent has high safety, and does not have serious toxicity and irritation to the oral cavity.

The present invention belongs to the technical field of rapid detection of drug sensitivity for bacteria. Disclosed are an enrichment culture medium, and a preparation method therefor and the use thereof. The enrichment culture medium comprises the following raw materials in parts by mass: 15.0-20.0 parts of tryptone, 3.5-5.5 parts of peptone, 1.5-3.5 parts of glucose, 5.0-6.5 parts of yeast extract, 2.0-2.5 parts of dipotassium phosphate, 2.0-3.5 parts of disodium hydrogen phosphate, 1.0-1.5 parts of monopotassium phosphate, 2.5-7.5 parts of sodium chloride, 12.0-18.0 parts of proteose peptone, 15.0-22.0 parts of beef heart infusion powder, 8.0-12.0 parts of soya peptone, 1.0-5.0 parts of 0.1% nicotinamide adenine dinucleotide (NAD), 30-100 parts of newborn calf serum inactivated at 56°C for 30 min, 2.0-4.0 parts of mannitol, 3.0-5.0 parts of sodium pyruvate, 0.23-0.45 parts of cycloheximide, 0.8-2.0 parts of 0.05% bromothymol blue, 2.5-4.5 parts of 0.1% methylene blue, and 1000 parts of distilled water, with the pH value of 6.8-7.5. The enrichment culture medium is used to screen effective therapeutic drugs for bacterial diseases in poultry, and is convenient to use and has a single enrichment effect superior to that of respective selective enrichment broths of target bacteria. Therefore, the culture medium can realize rapid proliferation of common pathogenic bacteria in poultry.

The invention discloses a haemophilus parasuis high-density fermentation culture medium as well as a culture method and application thereof, and relates to the technical field of microbial fermentation. The haemophilus parasuis high-density fermentation culture medium is prepared from the following components according to the content in 1L: 1.8 to 2g / L of glucose, 20 to 25g / L of organic nitrogen source, 2.0 to 3.0 g / L of dipotassium phosphate, 4.5 to 5.5 g / L of sodium chloride, 0.5 to 1.8 mg / L of NAD (Nicotinamide Adenine Dinucleotide), 8.2 to 8.6 mL / L of fetal calf serum and the balance of water, and the pH value is 7.0 to 7.5; wherein the organic nitrogen source is composed of Oxoid yeast and green source soybean peptone in a mass ratio of 1: 2. By optimizing the proportion of the glucose, the organic nitrogen source and the fetal calf serum, the viable count of the haemophilus parasuis is remarkably increased, when the culture medium is used for fermentation culture, OD600 can reach 1.8 through 7-hour fermentation, the viable count reaches 1010 CFU / mL, the viable count is increased by more than one time compared with that of a traditional culture medium, and the culture medium is suitable for large-scale production. And a high-density thallus raw material is provided for vaccine production.

The invention relates to the technical field of pathogenic microorganism detection, and discloses a helicobacter pylori detection kit based on a urease method and a preparation method, the helicobacter pylori detection kit comprises a detection sleeve card, detection test paper and a tartar sampling label, the test paper is soaked in a reaction solution and a buffer solution in the preparation process of the detection test paper, the pH of the buffer solution is 6.5-7.0, and the tartar sampling label is used for sampling tartar. The buffer solution comprises monopotassium phosphate and dipotassium phosphate, the final concentration of the monopotassium phosphate is 14-30 g / L, and the final concentration of the dipotassium phosphate is 1.8-3.6 g / L. The method can solve the problems of high false positive rate of detection results, poor accuracy, slow reagent response speed and the like caused by complex oral environment (such as diet residue and non-specific bacterial interference) and lack of an effective control system when a tartar sample is used for detecting helicobacter pylori in the prior art.

The invention provides a method for rapidly determining the vitality of blueberry pollen, and relates to the technical field of blueberry pollen vitality detection. The method for rapidly determining the vitality of the blueberry pollen comprises the following specific steps: step 1, pollen collection: when blueberry flowers are in a big flower bud stage, picking the flowers into a self-sealing bag, putting the self-sealing bag into a preservation box with ice cubes, taking the preservation box back to a laboratory, and performing detection on the day; and step 2, preparing a PBS solution, namely fixing the volume of 3.16 g of monopotassium phosphate to 100 ml, fixing the volume of 2.28 g of dipotassium phosphate to 100 ml, preparing a mixed solution, and adding an acidic titration solution or an alkaline titration solution to prepare the PBS solution with the pH value of 7.0. TTC (2, 3, 5-triphenyltetrazole chloride) is dissolved in a PBS solution, a 1% TTC solution is prepared for dyeing, the blueberry pollen suspension prepared by the method can fully absorb a reaction solution to avoid pollen viability errors caused by individual differences, meanwhile, the blueberry pollen dyeing time can be 20 min, and the blueberry pollen viability detection time is greatly shortened.

The invention discloses a dipotassium phosphate synergist for plant-based food and a preparation method of the dipotassium phosphate synergist. The dipotassium phosphate synergist for the plant-based food comprises the following components in percentage by mass: 15%-40% of nanocrystallized dipotassium phosphate; 30%-60% of composite plant colloid, wherein the composite plant colloid is prepared by cross-linking natural anionic polysaccharide and nonionic polysaccharide; 3%-8% of an interface function auxiliary agent, wherein the interface function auxiliary agent is prepared by adopting a layered film, nano-scale filling particles and molecular-scale chelating metal ions in a synergistic manner; 10%-25% of a microporous carrier; and 0.5%-3% of an ion migration inhibitor, which is prepared by synergistically using amphiphilic molecules and cationic polypeptides. The dipotassium phosphate synergistic system with the intelligent response characteristic is constructed through three technical innovations of nanostructure design, biological interface engineering and supercritical processing, and the problems of water separation, ion migration and texture stability of dipotassium phosphate in a plant protein matrix can be solved through a multi-component synergistic effect.

This invention discloses a preparation method and application of a lauryl bisphosphonate / mesoporous hydroxyapatite organic-inorganic hybrid composite material, belonging to the field of landfill leachate treatment technology. A solution of dipotassium hydrogen phosphate is prepared and then added dropwise to a mixed solution of calcium chloride and lauryl bisphosphonate. The pH of the solution is adjusted with alkali, washed with water, and then heated and dried to obtain the lauryl bisphosphonate / mesoporous hydroxyapatite organic-inorganic hybrid composite material. This composite material exhibits strong complexing ability with various heavy metal ions, and its adsorption performance is minimally affected by soluble organic acids in landfill leachate, ensuring long-term locking of heavy metal ions and avoiding secondary pollution caused by the re-dissolution of heavy metals. It has strong market potential and application value in the fields of landfill leachate treatment and environmental remediation.

The invention discloses preparation and application of bacillus licheniformis for decomposing pigeon feathers, and relates to the field of environmental resource application in the breeding industry, and the preparation method comprises the following steps: step 1, strain activation: firstly resuscitating a freeze-dried strain, and then culturing and activating by adopting a gradient activation mode; 2, preparing a seed solution, namely culturing the strain activated in the step 1 in a seed culture medium to obtain the seed solution; according to the method, the components of the pre-activation culture medium comprise 1% of corn flour, 0.5% of soybean meal and 0.1% of dipotassium phosphate, the production cost is low, and the preparation feasibility and economic benefits of the bacillus licheniformis are improved; the feather decomposition efficiency is improved by 2-3 times through substrate pretreatment, the residual feather amount is reduced, meanwhile, the fermentation period is shortened to 40-50 hours, and the feather decomposition efficiency of the pigeons is improved; in the fermentation tank, the activity of the keratinase can reach 600U / mL, so that the decomposition efficiency can be improved, subsequent reuse is facilitated, and the utilization rate is increased.

The application discloses a Pediococcus pentosaceus with the functions of lowering cholesterol and inhibiting bacteria and a high-density industrial production fermentation medium of the Pediococcus pentosaceus, the Pediococcus pentosaceus is Pediococcus pentosaceus PG-2, and the preservation number is GDMCC No: 62392.The high-density industrial fermentation medium of the Pediococcus pentosaceus PG-2 contains 40 g / L of sugarcane molasses liquid, 20 g / L of corn syrup dry powder, 1.5 g / L of dipotassium hydrogen phosphate, 5 g / L of sodium acetate, 1 mL / L of Tween 80, 2 g / L of triammonium citrate, 0.2 g / L of magnesium sulfate heptahydrate, 0.05 g / L of manganese sulfate tetrahydrate, and the rest is water.The Pediococcus pentosaceus is cultured by using the medium, the bacterial concentration is significantly higher than that of MRS medium, a high-density bacterial body amount is effectively obtained, the utilization rate of industrial by-products is improved, the production cost is greatly reduced, and the production efficiency is improved.

The invention relates to the technical field of animal husbandry, in particular to a multipurpose animal feed conditioner and a using method thereof, and the conditioner is prepared from the following components in percentage by weight: 0.05%-0.1% of bacillus, 0.05%-0.1% of clostridium butyricum, 0.1%-0.2% of saccharomycetes, 0.05%-0.1% of lactobacillus acidophilus, 2.0% of glucose, 0.15% of yeast extract, 0.1%-0.15% of dipotassium phosphate, 0.05% of magnesium sulfate, 0.1% of sodium chloride and the balance of water. Through the synergistic effect of multiple bacteria, the feed utilization rate is remarkably increased, the animal growth is promoted, the immunity is enhanced, the use of antibiotics is reduced, the environmental pollution is reduced, and the synergistic development of economic benefits, ecological benefits and social benefits of livestock and poultry breeding is realized.

The invention provides a silage corn slow-release fertilizer and a preparation method thereof, and belongs to the technical field of slow-release fertilizers. The method comprises the following steps: mixing zirconocene dichloride and ethynyl biphenyl-3, 3 ', 5, 5'-tetracarboxylic acid, adding N, N-dimethylacetamide and water, reacting at 50-80 DEG C for 15-20 hours, cooling to room temperature, and washing with N, N-dimethylacetamide to obtain a porous carrier; mixing the porous carrier with dipotassium phosphate, ammonium chloride and water, and dispersing to obtain dispersion liquid; adding agricultural wastes into the dispersion liquid, uniformly stirring, slowly dropwise adding ammonium persulfate, and adding a monomer and a cross-linking agent to obtain a mixed solution; reacting for 1-2 hours at 60-80 DEG C in an inert atmosphere to obtain a semi-finished product; and washing and drying the obtained semi-finished product to obtain the silage corn slow-release fertilizer. The slow-release fertilizer provided by the invention can improve the water retention capacity of soil and prolong the nutrient release time, and is suitable for sandy soil or arid and semi-arid regions.

The invention discloses a phosphorus-modified calcium-based biomineral material for inhibiting leaching of heavy metals in fly ash and application, and belongs to the technical field of fly ash treatment. The material takes waste oyster shells as a raw material, and is prepared by grinding, sieving, dipotassium phosphate modification, pyrolysis at 400-600 DEG C, grinding and sieving with a 0.15-0.22 mm sieve, the pH is 10.2-11.3, the calcium accounts for 20-30%, and the phosphorus accounts for 6-8%. During application, the mass ratio of the material to fly ash is 0.01-0.1, and the material is cured for 24 hours and dried. The material can efficiently fix seven heavy metals such as As and Cd in the fly ash, the leaching concentration reaches the standard, the secondary release rate is low under the acidic condition, resource utilization of the oyster shells is achieved, the cost is low, and the material is suitable for stabilizing treatment of the waste incineration fly ash.

Tartaric acid is a kind of organic acid existing in natural fruits or yoghurt, and is also named alpha-hydroxy acid. The pigment is a raw material endowed with a certain color and can attract human vision. The preparation method comprises the following steps: dissolving chitosan in citric acid, malic acid or tartaric acid in tartaric acid to prepare a chitosan solution; adding a ferrous sulfate solution into the solution, dialyzing, and adding disodium hydrogen phosphate or dipotassium phosphate to obtain the yellow pigment. The yellow pigment is bright in color and luster, good in water solubility and relatively stable in weak-acid and weak-base environments. After being placed, the color is not obviously changed. The color and luster are slightly different according to different added tartaric acid.

The invention discloses a method for detecting pesticide residues in a fat-soluble plant extract, which comprises the following steps: step 1, weighing a fat-soluble plant extract sample A which is uniformly mixed, adding water, acetonitrile, anhydrous magnesium sulfate, potassium chloride, monopotassium phosphate and dipotassium phosphate, oscillating and extracting, centrifuging, and taking supernate B for solvent replacement to obtain a sample solution C; 2, purifying the sample solution C through a composite solid-phase extraction column to obtain a purified solution D; the filler of the composite solid-phase extraction column comprises Z-Sep, florisil, neutral aluminum oxide, PSA and C18 from top to bottom; and step 3, carrying out solvent replacement on the purified solution D to obtain a sample solution E, and detecting the pesticide residues by using a gas chromatography-tandem mass spectrometry. By optimizing a sample pretreatment and purification process, accurate detection of the pesticide residues in the fat-soluble plant extract is realized.

The invention relates to the technical field of fertilizers, and particularly discloses a liquid fertilizer containing bacillus velezensis LLH-D2. The organic fertilizer is prepared from the following raw materials in parts by weight: 24 to 26 parts of compound microorganism bacterium powder, 10 to 13 parts of chicken manure, 5 to 6 parts of dipotassium phosphate, 13 to 15 parts of glucose, 10 to 12 parts of amino acid, 16 to 18 parts of straw compound powder, 3 to 5 parts of sodium lignin sulfonate, 10 to 14 parts of attapulgite powder and 240 to 250 parts of water. According to the prepared liquid fertilizer, various raw materials are matched to jointly promote formation of a soil aggregate structure, increase the content of organic matters in soil, improve the micro-ecological environment of the soil and increase the yield of crops.

The invention relates to the technical field of material management, in particular to a dipotassium phosphate storage and distribution management system, which comprises an unbalance loading feature extraction module, a steering section risk identification module, a station passing feature classification module, a path stability evaluation module and a path combination optimization module. According to the method, dynamic extraction and normalization expression are carried out on material mass distribution and gravity center shift states in the loading process, and a path whole-course passing trend sequence is constructed in combination with steering response change in a discharging path and a discharging tail end passing deviation trend; then, traffic state judgment and path traffic grade evaluation are carried out through trend consistency and fluctuation characteristics, and path optimization is completed in a path combination stage based on trend abnormal section replacement and a trend sequence combination evaluation value; dynamic classification, trend identification and path selection optimization can be carried out on the passing risk state of the whole process from loading to unloading of dipotassium phosphate under the multi-station and multi-path condition.

The invention relates to the technical field of microbial culture media, in particular to a lactobacillus paracasei multifunctional culture medium and a preparation method and application thereof, and the lactobacillus paracasei multifunctional culture medium is prepared from the following components: spirulina platensis lysate, corn steep liquor, trehalose, glucose, Tween 80, dipotassium phosphate, sodium acetate, triammonium citrate, magnesium sulfate and manganese sulfate. The spirulina platensis lysate is prepared by lysing a spirulina platensis solution with the concentration of 110 g / L to 200 g / L; the pH value of the culture medium is 6.3 to 6.5; wherein 0.2 g to 0.8 g of corn steep liquor, 0.4 g to 1.6 g of trehalose, 5 g to 35 g of glucose, 0.4 ml to 1.6 ml of Tween 80, 0.5 g to 3.5 g of dipotassium phosphate, 2 g to 8 g of sodium acetate, 0.5 g to 3.5 g of triammonium citrate, 0.05 g to 0.35 g of magnesium sulfate and 0.02 g to 0.08 g of manganese sulfate are added into each liter of spirulina platensis lysate. According to the culture medium disclosed by the invention, rapid, high-density, high-activity, high-probiotic necessary characteristic and high-extracellular polysaccharide / extracellular protein yield culture of the lactobacillus paracasei in a batch culture mode is realized, and a foundation is laid for industrial application of the lactobacillus paracasei probiotics and the extracellular polysaccharide / extracellular protein.

The invention discloses an acetic acid inhibition culture medium and application thereof in lactic acid fermentation production. The acetic acid inhibition culture medium is prepared from 15-30 g / L of peptone, 5-10 g / L of yeast extract powder, 50-100 g / L of glucose, 1-2 mL / L of Tween, 1-2 g / L of ammonium citrate, 1-2 g / L of dipotassium phosphate, 0.2-0.4 g / L of magnesium sulfate, 0.1-0.2 g / L of ferrous sulfate, 0.1-0.2 g / L of copper sulfate, 0.05-0.2 g / L of manganese sulfate, 0.005-0.02 g / L of biotin and 0.005-0.02 g / L of riboflavin. The method has remarkable technical advantages in the aspects of inhibiting the generation of a byproduct acetic acid and improving the yield of lactic acid and the fermentation stability, can effectively overcome the defects in the prior art, and has relatively high economic value and popularization and application prospects.

The invention discloses a culture medium for promoting intestinal colonization of probiotics. Every 1000 parts by weight of water of the culture medium is prepared from the following components in parts by weight: 2 to 10 parts of casein, 4 to 12 parts of yeast extract powder, 10 to 12 parts of beef extract powder, 1.5 to 2.5 parts of trisodium citrate or triammonium citrate, 4.5 to 5.5 parts of sodium acetate, 0.1 to 0.3 part of magnesium sulfate heptahydrate, 0.05 to 0.1 part of manganese chloride and 1 to 3 parts of dipotassium phosphate. When the culture medium is used for culturing the probiotics, the secretion amount of exopolysaccharides, proteins and other substances can be remarkably increased, a protective layer is formed, the stress resistance of the strain is improved, the survival ability of the probiotics in a complex gastrointestinal tract environment is improved, and a new strategy is provided for development of the oral probiotics.

The invention discloses a method for separating tungsten and vanadium from a mixed solution containing tungsten and vanadium step by step, which comprises the following steps: S1, carrying out impurity removal pretreatment on the mixed solution containing tungsten and vanadium, adjusting the pH value to 7-9, and filtering to obtain a pre-exchange solution; s2, adsorbing the pre-exchange liquid through ion exchange resin until the resin is adsorbed to be saturated; s3, carrying out step-by-step desorption on the resin saturated by adsorption, firstly introducing an acidic desorption agent into the resin to desorb vanadium to obtain a vanadium desorption solution, washing the resin with water, and then introducing an alkaline desorption agent into the resin to desorb tungsten to obtain a tungsten desorption solution; the acidic desorption agent comprises citric acid and a monopotassium phosphate-dipotassium phosphate buffer solution; the alkaline desorption agent comprises an alkaline solution and an anionic surfactant; and S4, the vanadium desorption solution and the tungsten desorption solution are subjected to aftertreatment, and tungsten and vanadium products are obtained. According to the method for separating tungsten and vanadium, efficient separation of tungsten and vanadium can be achieved, and the comprehensive utilization rate of tungsten and vanadium from a mixed solution to a pure product is increased.

The invention relates to the technical field of microorganisms, and discloses an improved LST broth culture medium and application, and the improved LST broth culture medium comprises tryptone, ammonium chloride, lactose, dipotassium phosphate, monopotassium phosphate, sodium lauryl sulfate, Rpf recombinant protein, magnesium sulfate, sodium pyruvate and pyridoxal phosphate. The improved LST broth culture medium disclosed by the invention can be used for successfully enriching the VBNC-state escherichia coli, so that researchers can successfully detect the VBNC-state escherichia coli in a culture manner.

The invention discloses a pesticide synergist and a preparation method thereof. The synergist is prepared from 7-9 parts of potassium oleate, 1-2 parts of dipotassium phosphate and 1-2 parts of 2-hydroxy-4-methylvaleric acid according to a specific mass ratio. The preparation method comprises the following steps: stirring and mixing the components at normal temperature until the components are completely dissolved to form a homogeneous solution. The synergist disclosed by the invention can be compounded with chemical pesticides such as triadimefon, carbendazim and azoxystrobin for use, and by enhancing the attachment and permeation of the pesticides on the surfaces of plants and the binding efficiency of the pesticides and pathogenic bacteria targets, the control effect of 90% or above can be still maintained under the condition that the dosage of the chemical pesticides is reduced by 50%-80%, and pesticide residues and environmental risks are remarkably reduced. The invention has the advantages of easily available raw materials, simple process and low cost, is suitable for large-scale production, and has important significance for realizing agricultural pesticide reduction and synergism and sustainable development.

The invention belongs to the technical field of biological fermentation, and particularly relates to a fermentation medium and method for producing riboflavin by using corn vinasse as a fermentation nitrogen source. The specific formula of the fermentation culture medium comprises 100-300 g / L of glucose, 4.0-6.0 g / L of urea, 6-10 g / L of corn vinasse, 2-6 g / L of soybean meal powder, 10-15 g / L of corn steep liquor dry powder, 3-6 g / L of dipotassium phosphate, 1-2 g / L of monopotassium phosphate, 0.3-0.5 g / L of magnesium sulfate, 2-5 g / L of ammonium sulfate and 1.0-3.0 g / L of betaine hydrochloride, and the pH value is 7.0. According to the method, the corn vinasse is used as a fermentation raw material for production of riboflavin for the first time, yeast powder is completely replaced, the fermentation yield is increased, the production cost is greatly reduced, and the yield is increased by 4% or above compared with that of an existing process. The fermentation medium has cheap and easily available raw materials, is suitable for industrial production, and has a wide application prospect.

The invention relates to the technical field of sewage treatment, in particular to a method for degrading organic pollutants through photo-thermal coupling and photoelectrocatalysis. The method comprises the following steps: preparing a photo-thermal conductive composite photo-anode; s2, taking an electrolytic cell as a reaction tank, taking the photo-thermal conductive composite photoanode obtained in the step S1 as a photoanode, taking a Pt sheet as a photocathode, taking an Ag / AgCl electrode as a reference electrode, and taking a buffer aqueous solution containing pollutants, monopotassium phosphate and dipotassium phosphate as an electrolyte; a light source is adopted to irradiate the photoanode to form a photoelectrochemical catalytic reaction; according to the invention, the prepared photo-thermal conductive composite photo-anode effectively utilizes the photo-thermal effect under a photocatalysis and electro-catalysis synergistic mechanism, so that wastewater containing organic matters is efficiently and stably degraded.

The invention relates to an inonotus obliquus fermentation product and application of the inonotus obliquus fermentation product in hypoglycemic drugs, and belongs to the technical field of inonotus obliquus fermentation products. A component culture medium is prepared from 10-15 parts of plant flour, 3-6 parts of glucose, 0.8-1.2 parts of dipotassium phosphate, 1-2 parts of magnesium sulfate, 5-8 parts of protein peptide, 4-8 parts of agar and 60-80 parts of purified water; the component B culture medium is prepared from the following raw materials in parts by weight: 12-15 parts of plant starch, 2-4 parts of glucose, 1-3 parts of oxytetracycline, 1-3 parts of chloramphenicol, 8-16 parts of sodium hyaluronate and 60-80 parts of purified water. Through the multi-target synergistic effect of improving insulin resistance, protecting islet cells, inhibiting sugar absorption and the like, the hypoglycemic effect is obvious, and the prepared inonotus obliquus fermentation product is simple in process, low in operation difficulty, suitable for industrial production and capable of being applied to the fields of cosmetics, textile industry and medicine.

The invention provides a culture medium and application thereof in culture of genetically modified lactococcus lactis. The culture medium comprises a carbon source, amino acid, nucleotide, inorganic salt and vitamin, the carbon source comprises glucose; the amino acids comprise alanine, arginine, aspartic acid, asparagine, cysteine hydrochloride, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine hydrochloride, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine and valine; the nucleotide comprises adenine, guanine, uracil or xanthine; the inorganic salt comprises sodium chloride, potassium acetate, zinc sulfate heptahydrate, magnesium sulfate heptahydrate, monopotassium phosphate, dipotassium phosphate, cobalt chloride, manganese sulfate, calcium chloride, ferrous sulfate and copper sulfate. The method can solve the problem of unstable fermentation culture of lactococcus lactis in the prior art, and is suitable for the field of lactococcus lactis culture.

A foaming liquid creamer contains (i) water; (ii) at least one of micellar casein or sodium caseinate; (iii) at least one carbohydrate source; (iv) at least one lipid; (v) at least one buffer salt; (vi) at least one stabilizer; (vii) at least one sweetener; and (viii) at least one emulsifier. The carbohydrate source may include glucose syrup, preferably glucose syrup DE 25-29. The buffer salt may include dipotassium phosphate. The stabilizer may include at least one of carrageenan, carboxymethyl cellulose (CMC), or microcrystalline cellulose (MCC). The lipid may include coconut oil. The at least one emulsifier may include mono- and di-glycerides. The sweetener may include at least one of sucralose or acesulfame. The foaming liquid creamer may also contain a flavor. Another foaming liquid creamer contains (i) water; (ii) at least one of non-fat milk solids or milk fat; and (iii) sugar. Another aspect is an aerosol packaging which includes one of these foaming liquid creamers in a pressurized container, and the aerosol packaging has an actuator nozzle.

The invention relates to the technical field of intestinal microecology, and particularly discloses an in-vitro fermentation system for rapid targeted screening, regulation and control of intestinal TMA generation, an establishment method and application, and the in-vitro fermentation system comprises the following components in parts by weight: 2-3 parts of yeast extract, 0.8-1.2 parts of L-cysteine, 1.5-2.5 parts of heme, 0.8-1.0 part of sodium chloride, 0.008-0.012 part of calcium chloride hexahydrate and 0.4-0.5 part of dipotassium phosphate. The feed is prepared from the following raw materials in parts by weight: 0.08 to 0.1 part of magnesium sulfate heptahydrate, 0.15 to 0.25 part of vitamin mixture, 7 to 9 parts of starch, 0.01 to 0.8 part of choline and 0.8 to 1.2 parts of resazurin. The method has the characteristics that the large-scale and high-flux active substance screening requirement can be met, and the TMA generation and related substrate metabolism quantitative control can be realized.