375 results about "Sodium benzoate" patented technology

A fire retarding biochemical liquid composition including: a dispersing agent realized in the form of a major amount of water, for dispersing alkali metal ions dissolved in the water; a major amount of a first fire retarding agent realized in the form of a first alkali metal salt of a nonpolymeric saturated carboxylic acid, specifically, tripotassium citrate, for providing metal potassium ions dispersed in the water when the at least one alkali metal salt is dissolved in the water to form a mixed retardant solution; a minor amount of a second fire retarding agent realized in the form of a second alkali metal salt of a nonpolymeric saturated carboxylic acid, specifically, sodium benzoate (SB), for providing metal sodium ions dispersed in the water when the at least one alkali metal salt is dissolved in the mixed retardant solution, for functioning as a secondary fire retardant agent and also inhibiting surface corrosion reactions involving metals contacting the mixed retardant solution, including specific metals, namely 2024-T3 Aluminum, 4130 Steel, Yellow Brass, and Az31B Magnesium; a minor amount of thickening agent in the form of a biomolecular polymer consisting of polysaccharides, for increasing the viscosity of the mixed retardant liquid during application operations; a minor amount of coloring agent in the form of fugitive color dye powder, or non-fugitive pigment powder, for imparting a visible color (e.g. red or green) when the fire retarding biochemical liquid composition is applied to a surface to be protected against fire, as water molecules in the retardant liquid coating evaporate to the environment during drying, to form a thin fire retardant coating deposited on the treated surfaces having a characteristic visible color, and comprising potassium and sodium salt crystals mixed within the polysaccharides of the biomolecular polymer. Wet and dry concentration formulations of the fire retarding biochemical liquid composition are disclosed for use with both serial and ground delivery methods and apparatus.

The invention relates to the technical field of high-performance polyester, in particular to a high-strength low-shrinkage polyester fiber and a preparation method thereof. The defects that existing polyester fibers are poor in strength and shrinkage resistance are overcome. The preparation method comprises the following steps: mixing the modified resin, the modified nano silicon dioxide, the composite antioxidant, the composite nucleating agent and the composite lubricant, and carrying out melt spinning. Wherein the modified resin is prepared from the following raw materials: dimethyl terephthalate, isophthalic acid, ethylene glycol and isosorbide; the modified nano silicon dioxide comprises nano silicon dioxide, KH570 and silver nitrate; the composite antioxidant comprises an antioxidant 1010, an antioxidant 168 and an antioxidant 1222; the composite nucleating agent comprises sodium benzoate and nano montmorillonite; the composite lubricant is prepared from ethylene bis stearamide and pentaerythritol stearate. The prepared polyester fiber is high in strength, high in shrinkage resistance and suitable for manufacturing of outdoor equipment.

The present invention discloses a semi-artificial diet for Tuta absoluta larvae, a preparation method thereof and an application thereof. In the present invention, 1000 mL of water is boiled, and after it is stable, 0.5 - 1 g of sorbic acid, 0.5 - 1 g of sodium p-hydroxybenzoate and 0.1 - 0.2 g of thiabendazole are added, and quickly stirred and melted. Subsequently, compound vitamins are added, and after stirring evenly, 500 - 550 g of malt embryos are added and stirred into a dough. When the temperature drops below 30 °C, 150 - 200 g of tomato leaf powder is added and stirred and mixed evenly to obtain the semi-artificial diet for Tuta absoluta larvae. The components of the semi-artificial diet of the present invention can not only meet the nutritional requirements of test insects, but also have an optimal compound ratio of different components, and particularly give the best nutritional ratio. At this ratio, the survival rate, pupation rate and emergence rate from larvae to pupae are high, and the deformity rate of pupae is low.

This invention relates to the field of water treatment technology, specifically to a reverse osmosis membrane cleaning agent composed of a non-oxidizing bactericide and an enzyme, and its application. Its main purpose is to remove biofouling from reverse osmosis membranes and restore membrane flux. This patent discloses a novel reverse osmosis membrane cleaning agent formulation. Considering the different pH requirements of the cleaning agent in actual production, different types of bioactive hydrolytic enzymes are selected to disrupt the structure of bacterial cell walls and their extracellular polymers. A reducing agent and a non-oxidizing bactericide are combined to enhance the cleaning effect of the reverse osmosis membrane. For different cleaning purposes, non-oxidizing bactericides suitable for acidic and alkaline cleaning are formulated. Sodium benzoate and benzalkonium chloride show good application prospects in the removal of reverse osmosis membrane fouling.

Compared with the prior art, the traditional Chinese medicine compound oral liquid is mainly used for invigorating qi and blood, regulating yin and yang, nourishing liver and kidney, strengthening spleen and stomach, strengthening muscles and bones and the like, a plurality of traditional Chinese medicine components are compounded and decocted to obtain liquid medicine, and finally specific modified polysaccharide, steviosin, sodium benzoate and ethylparaben are added, so that the traditional Chinese medicine compound oral liquid is prepared. The modified polysaccharide is screened and optimized and is added into the compound oral liquid, and the problems of serious wall hanging and high liquid medicine waste rate in the prior art are solved by reducing the low-temperature storage wall hanging rate and the hydrolysis rate in storage stability on the premise of not influencing the medicine effect and safety.

The invention relates to the technical field of food additive drying, and particularly discloses sodium benzoate rapid drying equipment which is used for solving the problem that drying cannot be continuous in the prior art. Comprising a base, a drying cylinder is arranged above the base, a rotating shaft column is rotationally arranged at the top of the drying cylinder, an upper end opening of the rotating shaft column is connected with a feeding component used for feeding, and a flow guide channel extending into the drying cylinder is arranged at the upper end of the rotating shaft column. The continuous drying device is designed according to existing requirements, continuous drying of sodium benzoate is achieved, one-time feeding and discharging actions are not needed, the drying efficiency of sodium benzoate is improved, the problem of blockage of a negative pressure position can be avoided while the drying effect is achieved, the continuity of the drying process is guaranteed, and the drying efficiency is improved. And in addition, an intermittent discharging mechanism is constructed, so that the sealing performance of a drying space is guaranteed during discharging of the equipment, and the drying quality is guaranteed.

The invention discloses a sugar-free electrolyte beverage and a preparation method thereof, and relates to the technical field of functional beverages. The sugar-free electrolyte beverage comprises the following components in parts by weight: 80-90 parts of erythritol, 0.5-2 parts of an electrolyte component, 0.4-0.8 part of a buffer agent, 0.1-0.2 part of vitamin B6, 0.1-0.5 part of taurine, 1-3 parts of an auxiliary agent and 1000-1200 parts of water, the electrolyte component comprises at least four of edible salt, potassium chloride, magnesium sulfate, calcium lactate and calcium citrate, the buffer agent comprises potassium dihydrogen phosphate and sodium citrate, and the auxiliary agent comprises sodium dihydrogen phosphate and sodium citrate. The auxiliaries comprise citric acid, sodium benzoate and essence. The sugar-free electrolyte beverage disclosed by the invention is high in blood osmotic pressure recovery speed, does not cause blood sugar fluctuation when supplementing electrolyte for a human body, and tastes fresh and cool.

The invention relates to a hypoallergenic bovine colostrum compound for pets. The milk powder comprises the following components in percentage by mass: 70%-95% of bovine colostrum, 10%-15% of protein hydrolysate, 1%-7% of a vitamin and trace element premix, 1%-8% of fructo-oligosaccharide, 0.01%-0.15% of sodium benzoate, 0.005%-0.015% of disodium ethylene diamine tetraacetate, 0.5%-1.5% of lactobacillus acidophilus, 0.1%-0.3% of lecithin, 0.2%-0.5% of glutamine, 0.1%-0.3% of beta-glucan, 0.3%-0.6% of arginine, 0.1%-0.3% of nano-hydroxyapatite, 0.05%-0.15% of a rosemary extract, 0.05%-0.1% of vitamin C and 1%-3% of a yolk immunoglobulin IgY and enzyme mixture. The bovine coloctrum provides immune support, the fructooligosaccharide regulates intestinal flora, the vitamin and trace element premix supplements trace elements and the like, and after enzymolysis and emulsification, nutrition is easy to absorb, the physiological state is rapidly regulated, and stress is relieved. The disodium ethylene diamine tetraacetate stabilizes the nutritional ingredients in the form of the nutritional paste, and can be effectively absorbed by the young pets in a stress state, so that the influence on the nutrient intake of the young pets due to the coagulation problem is avoided.

The invention discloses a monocrystalline silicon alkali polishing additive with an inverted pyramid structure tower footing and application of the monocrystalline silicon alkali polishing additive. The monocrystalline silicon alkali polishing additive comprises, by mass, 1-2 parts of glue, 0.5-2 parts of sodium lignin sulfonate, 1-3 parts of quaternary ammonium salt, 0.1-0.3 part of sodium benzoate, 2-3 parts of DL-proline, 2-5 parts of other auxiliaries and the balance deionized water. By adding the additive disclosed by the invention into a polishing solution for alkali polishing of monocrystalline silicon, the reaction rate of a [111] / [100] surface can be changed, the reaction rate of a [110] surface can be increased, an inverted pyramid structure which is uniformly distributed and complete in structure can be formed on the back surface of the monocrystalline silicon, the roughness of the back surface of the monocrystalline silicon can be increased, on one hand, back slurry contact and slurry tension improvement are facilitated, and FF can be improved; and on the other hand, the double-sided rate of the photovoltaic module is improved, thereby improving the electrical performance of the battery piece.

The invention belongs to the technical field of urine wastewater treatment, and particularly discloses a novel corrosion-resistant slow-release product for urine wastewater and a preparation method of the novel corrosion-resistant slow-release product. Sucrose, isomaltitol, a Kathon solution, citric acid, sorbic acid, benzoic acid and sodium benzoate are used as main raw materials to prepare a sustained-release product. The slow-release product has the effects of preventing corrosion and odor of urine. The slow-release block can effectively inhibit hydrolysis of urea in urine wastewater, and has good corrosion-resistant and odor-resistant effects; the hardness is higher, and powder is not easy to crack after long-time storage; the dissolvability is good, the toxicity is low and the environment-friendly effect is realized. The method is simple in preparation process flow, high in repeatability, low in equipment requirement, low in production cost and easy for industrial batch production.

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 relates to a detergent tablet comprising from 5 to 20 percent by weight citric acid or a salt thereof and from 3 to 25 percent by weight sodium benzoate and a surfactant. The invention also relates to a method of forming a wash liquor by combining a detergent tablet with water in a container. The invention also relates to the use of a detergent tablet to create a washing liquor for cleaning surfaces.

The invention relates to the technical field of medical preparations, in particular to a preparation method of an atomoxetine hydrochloride oral solution. The atomoxetine hydrochloride oral solution disclosed by the invention is prepared from the following raw materials in parts by weight: 5 to 15 parts of atomoxetine hydrochloride inclusion compound, 0.3 to 0.5 part of sodium benzoate, 16 to 17 parts of sorbitol, 165 to 170 parts of xylitol, 5 to 10 parts of sucralose, 1 to 2 parts of raspberry essence and 300 to 350 parts of deionized water. The atomoxetine hydrochloride oral solution disclosed by the invention has the advantages that in a taste experiment, the atomoxetine hydrochloride oral solution has obvious sweet taste and is well received by testers, the bitter taste of atomoxetine hydrochloride does not exist after the atomoxetine hydrochloride oral solution is eaten, and most importantly, after an acceleration experiment, the atomoxetine hydrochloride oral solution still has good taste and stability.

The invention discloses a rock soil curing agent and a preparation method thereof, the curing agent is composed of cement, polyvinyl alcohol, nano silica, calcium carbonate, sodium sulfate, fly ash, bentonite, triethanolamine, sodium benzoate and aluminum sulfate, and through a specific ratio and a preparation process, rapid curing, high mechanical properties and good durability are realized. The curing agent is suitable for various geotechnical engineering, such as road construction, foundation treatment and anti-seepage engineering, and has a wide application prospect.

The invention discloses an electrolyte composite additive and application thereof in electrolyzed water (seawater), and belongs to the technical field of hydrogen production by electrolyzed water (seawater). The electrolyte composite additive is a combination of one of oxysalts and sodium benzoate; the concentration of oxysalt in the composite additive in the electrolyte is 5-50 mmol / L, and the concentration of sodium benzoate in the electrolyte is 0.1-5.0 mmol / L; when the composite additive is used in an electrolyte of a water (seawater) electrolysis hydrogen production technology, the corrosion resistance and the stability of a water (seawater) electrolysis catalyst can be improved, and the loss and the inactivation of active sites of the catalyst are effectively inhibited. The composite catalyst has universality for nickel-based catalysts in the field of hydrogen production by electrolyzing water (seawater). The method has great significance in cost reduction and efficiency improvement of a water (seawater) electrolysis hydrogen production technology, and has wide popularization and application prospects.

The invention discloses an AES concentrated formula with high-activity components and a preparation method of the AES concentrated formula. The invention discloses an AES (acrylonitrile-ethylene-propylene-diene monomer styrene) water-based detergent which comprises the following components in percentage by weight: 25%-35% of AES, 8%-12% of sodium n-alkyl benzene sulfonate, 5%-8% of alkyl glycoside, 4%-6% of cocamidopropyl betaine, 18%-28% of a composite chelating agent, 2%-4% of sodium chloride, 0.3%-0.5% of EDTA (Ethylene Diamine Tetraacetic Acid)-disodium, 0.5%-1% of sodium benzoate, 3%-5% of propylene glycol and the balance of deionized water. AES is used as a main surfactant, and forms a ternary compound system with sodium n-alkyl benzene sulfonate, alkyl glycoside and cocamidopropyl betaine. Through the synergistic effect of the surfactants of different ion types, the critical micelle concentration (CMC) and the micelle aggregation number are remarkably improved, so that the active ingredients can form a stable micelle structure at a lower concentration, and the dirt-removing power and the foaming performance are improved. Sodium tripolyphosphate, sodium pyrophosphate and sodium citrate form a composite chelating agent, the chelating capacity of the composite chelating agent on Ca < 2 + >, Mg < 2 + > and other metal ions is larger than or equal to 300 mgCaCO3 / g, the inhibition effect of hard water on a surfactant can be effectively eliminated, and the stability of the formula under different water quality conditions is enhanced.

The invention discloses a preparation for promoting efficient yield increase and tree cultivation of rubber trees. The invention belongs to the technical field of rubber tree planting, and the preparation comprises CMC-Na, Yitenling, a Nobawen chelating nutrient solution, boron hydroxide, sodium benzoate, melissyl alcohol, 14-sterol and other components, the concentration of each component is optimally designed, and the components are uniformly prepared through special stirring equipment; when in use, the preparation is smeared on a secant of a rubber tree, the latex yield can be remarkably increased, the dead skin rate is reduced, and the dry glue content is increased by continuous use; the problems that the yield increasing effect of rubber trees is limited and maintenance is insufficient are solved through scientific matching and synergistic effect, the method has the advantages of being wide in raw material source, controllable in cost and easy and convenient to operate, is suitable for large-scale popularization, and provides powerful support for sustainable development of the natural rubber industry.

Disclosed is a method of reducing fine lines or wrinkles on skin. The method can include applying a topical skin care composition to skin with fine lines or wrinkles. The composition can include lactobacillus ferment, ascorbyl glucoside, Terminalia ferdinandiana fruit extract, Helianthus annuus (Sunflower) seed extract, glycerin, Persea gratissima (avocado) oil, Butyrospermum parkii (shea) butter, coco-caprylate / caprate, Sclerotium gum, sodium benzoate, and tocopherol.

A method for manufacturing polyvinyl alcohol fibers, comprising the steps of: providing a polyvinyl alcohol composition comprising: a homo-polyvinyl alcohol having a degree of hydrolysis of 88% to 98% or more and a weight average molecular weight of 14,000 to 22,000; a plasticizer selected from the group consisting of diglycerol, triglycerol, fructose, ribose, xylose, D-mannitol, triacetin, pentaerythritol, dipentaerythritol, methyl pentanediol, 1, 2-propanediol, 1, 4-butanediol, 2-hydroxy-1, 3-propanediol, 3-methyl-1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 3, 3-dimethyl-1, 3-butanediol, 3 the component A is prepared from 1, 2-butanediol, polyethylene glycol 300, polyethylene glycol 400, alkoxylated polyethylene glycol, caprolactam, tricyclic trimethylolpropane methylal, abietate, erucyl amide and a mixture of 1, 2-butanediol, polyethylene glycol 300, polyethylene glycol 400, alkoxylated polyethylene glycol and caprolactam; and an optional stabilizer selected from the group consisting of sodium stearate, potassium oleate, sodium benzoate, calcium stearate, stearic acid, dimethyl, propionic acid, and mixtures thereof; melting the composition at a temperature of 200 DEG C to 230 DEG C to form a molten polymer; extruding the molten composition to form an extrudate; forming the extrudate into molten fibers; and solidifying the molten fibers to form solid fibers.

The invention discloses a traditional Chinese medicine mixture with a liver and kidney tonifying effect and a preparation method thereof, and belongs to the field of pharmaceutical preparations. The traditional Chinese medicine mixture comprises the following components in parts by weight: 45-60 parts of polygonum multiflorum; 45-60 parts of rhizoma polygonati; 110 to 130 parts of fructus rosae laevigatae; 2.4 to 3.2 parts of Chinese angelica; 45-60 parts of rhizoma cibotii; 3.2 to 3.8 of semen cuscutae; 1.8-2.4 parts of dried orange peel; 3.5 parts of fructus psoraleae; the preparation method of the traditional Chinese medicine mixture comprises the following steps: decocting the components in water, filtering, concentrating filtrate until the density is 1.10-1.16 g / mL, adding ethanol until the alcohol content is 60%, standing for 24 hours, taking supernate, filtering, and recovering the filtrate under reduced pressure until no alcohol exists; adding water to 120 parts by weight, adding 2 parts by weight of talcum powder and 1 part by weight of sodium benzoate, uniformly stirring, and standing for 24-48 hours; taking supernatant liquid, adding 120-150 parts by weight of cane sugar, adding water to 300-350 parts by weight, uniformly stirring, boiling, standing and filtering to obtain filtrate, namely the product mixture. Eight medicines of the traditional Chinese medicine mixture are applied dialectically, and complement each other in tonifying liver and kidney, invigorating spleen and replenishing qi, arresting seminal emission and arresting enuresis.

An oral liquid suspension comprising atomoxetine or a pharmaceutically acceptable salt thereof is disclosed, formulated at a concentration of about 20 mg / mL for the treatment of attention-deficit / hyperactivity disorder (ADHD). The suspension includes a dual preservative system (methylparaben and sodium benzoate), sweeteners, pH buffers, suspending agents, co-solvents, flavorants, and colorants. The composition demonstrates bioequivalence to Strattera® capsules, robust antimicrobial efficacy meeting USP <51> criteria, and physicochemical stability over 24 months in validated high-density polyethylene containers with child-resistant closures. The 20 mg / mL concentration enables precise dose titration for pediatric and dysphagic patients. Palatability is optimized through validated flavor masking studies, supporting high patient adherence. The invention further provides scalable manufacturing methods, quality control specifications, and methods of use for treating ADHD, offering a stable, safe, and patient-friendly alternative to solid oral dosage forms.

A pharmaceutical composition containing high concentrations of opiranserin is disclosed. More specifically, the pharmaceutical composition contains opiranserin or a pharmaceutically acceptable salt thereof, a carrier selected from sodium benzoate, trisodium citrate, sodium salicylate, and mixtures thereof, and an injectable solvent.

A process for preparing a supramolecular carrier photosensitizer for photodynamic therapy and a formulation thereof is disclosed for prevention, treatment, anti-inflammatory and sterilization of oral dental diseases. Supramolecular carrier consists of refined lignin, glucomannan, cysteine, and sodium benzoate at a mass ratio of 0.1-1.0%: 0.5-3%: 0.1-0.5%: 0.05%, and the balance of water. Aqueous solutions of refined lignin, glucomannan, cysteine and sodium benzoate are prepared, and a pH value of combined solution is adjusted to 6.5, so that dissolved alkali lignin is precipitated to form an efficient and stable three-dimensional polymer network skeleton, and rich hydrogen bonds are facilitated to be formed between the same molecules and different molecules of lignin and glucomannan, thereby forming a supramolecular carrier formulation loaded with the photosensitizer. It ensures long-term storage stability of physicochemical traits of formulation, which is conducive to rapidly promoting application of PDT in anti-inflammatory and sterilization treatment of oral dental diseases.

The invention discloses an oil dispersant for ships, and belongs to the technical field of oil for ships. The oil dispersant for the ship comprises the following components in parts by weight: 15-20 parts of a solvent, 10-20 parts of a composite surfactant solution, 10-15 parts of high-dispersion modified soil, 2-8 parts of vegetable oil, 1-5 parts of tert-butylhydroquinone, 1-2 parts of a yeast extract, 1-2 parts of a colloidal substance, 1-2 parts of sodium benzoate and 1-3 parts of a pH regulator, the composite surfactant solution is obtained by graft modification of a modified polymer, a chemical surfactant and a bio-based surfactant; the high-dispersion modified soil is obtained by modifying bentonite, montmorillonite and magnesium silicate clay. The prepared oil dispersant for the ship not only has efficient dispersion performance and good stability, but also improves the use efficiency and environmental protection performance of the oil for the ship.

The invention belongs to the technical field of cough relieving and phlegm eliminating medicines, and particularly relates to compound dextromethorphan hydrobromide syrup and a preparation method thereof. On the basis that the total volume of the compound dextromethorphan hydrobromide syrup is 1000L, the compound dextromethorphan hydrobromide syrup provided by the invention is prepared from the following components: 3000g of dextromethorphan hydrobromide, 20kg of guaiacol glyceryl ether, 650kg of cane sugar, 100L of 1, 2-propylene glycol, 2000g of benzoic acid, 200g of sodium benzoate, 100g of menthol, 4000mL of essence, 14000mL of ethanol, 2000mL of caramel pigment and the balance of purified water. The compound dextromethorphan hydrobromide syrup provided by the invention takes benzoic acid as a main preservative and is matched with sodium benzoate; meanwhile, the dosage ratio of all the components in the syrup is optimized, the obtained compound dextromethorphan hydrobromide syrup is good in preservative effect, and adverse reactions are reduced.

The present disclosure discloses a composition for hair growth comprising Larix europea wood extract, Camellia sinesis leaf extract, Pisum sativum sprout extract, Curcuma longa (Turmeric) callus conditioned media, Hamamelis virginiana (Witch Hazel), Rosmarinus officinalis Leaf Oil, Glycerin, Glycine, Zinc Chloride, Sodium Metabisulfite, Gluconolactone, Sodium Benzoate, Calcium Gluconate, Tetrasodium ethylenediaminetetraacetic acid (EDTA), Saccharide Isomerate, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Propanediol, Biotinoyl Tripeptide- 1, Alpha Glucosyl Hesperidin, Caffeine, Hydrolyzed Pea Protein, Polyalkylene Glycol Mono Butyl Ether, Acrylates / C 10-30 Alkyl Acrylate Crosspolymer, Panthenol, Niacinamide, Arginine, PEG-40 Hydrogenated Castor Oil, Ethylhexylglycerin, Phenoxyethanol, and water is added to the composition until the desired volume is achieved. A method for preparing the composition for hair growth is also provided.

The invention discloses an artificial feed for efficient propagation of low-age larva parasitic wasps of prodenia litura. The artificial feed is prepared from the following raw materials: agar powder, soybean meal, sweet potato vines with leaves, yeast powder, wheat germs, sodium benzoate, vitamin C, multivitamins, linseed oil, chlortetracycline hydrochloride soluble powder and the like. The artificial feed is used for feeding 2-5-year-old prodenia litura larvae parasitized by parasitic wasps, and the pupation rate and eclosion rate of the parasitic wasps can both exceed 93%.

The invention relates to the technical field of catalyst preparation, in particular to a coal-fired catalyst and a preparation method and application thereof.The coal-fired catalyst is at least prepared from, by weight, 180-300 parts of organic salt solution, 200-350 parts of inorganic salt solution and 50-70 parts of water, the organic salt solution at least comprises pyridinium acetate or sodium benzoate, and the inorganic salt solution at least comprises ammonium acetate or sodium benzoate; the problems that an existing oxygen supply combustion-supporting additive is poor in using effect, coal cannot be fully combusted, and the combustion efficiency cannot be remarkably improved are solved, and the application requirement of the subsequent fire coal field is better met.

The application relates to the technical field of degradable materials, and discloses a high-mechanical-property PLA degradable composite material and a preparation method thereof.The high-mechanical-property PLA degradable composite material comprises the following raw materials in parts by weight: 60-80 parts of PLA resin, 15-30 parts of PBS resin, 5-12 parts of Chinese pine powder, 10-15 parts of polycaprolactone, 0.1-3 parts of a modified toughening agent, 0.2-1 part of a modified light stabilizer, 0.1-1 part of antioxidant 1010, 1.5-3 parts of glycerol tristearate, 0.1-0.5 parts of sodium benzoate and 0.1-0.5 parts of silane coupling agent KH-550.The modified toughening agent improves the impact strength and flexibility of the material, and further widens the application scene of the material; the modified light stabilizer enhances the ultraviolet aging resistance of the material, and meanwhile, the material retains excellent degradable characteristics and can be efficiently degraded in a natural environment after being discarded.

Lime-incorporated chitosan (LCh) beads are a non-toxic, environmentally friendly, and efficient preservative for food products, showcasing their superiority in microbial control, alcohol inhibition, color retention, and maintenance of physicochemical parameters. The all-natural LCh beads described here exhibit an on-par preservation performance with synthetic sodium benzoate at its maximum permissible limit in fruit juices. Additionally, the LCh beads offer the unique advantage of reusability, maintaining their preservation efficacy over multiple fruit juice preservation cycles, contributing to economic and environmental sustainability. The all-natural and biodegradable LCh beads exhibit comparable or superior preservation performance to synthetic preservatives like sodium benzoate at its maximum permissible limit in fruit juices. In light of the growing concerns about the harmful effects of synthetic preservatives, LCh beads present an eco-friendly and biocompatible solution, aligning with the increasing consumer demand for fresh and safe foods without chemically synthesized additives.