674 results about "Trimethylglycine" patented technology

The invention relates to a whitening and freckle-removing composition containing a composite plant extract and a preparation method of the whitening and freckle-removing composition, and belongs to the technical field of cosmetics. The composition disclosed by the invention is prepared from the following raw materials in parts by weight: 5 to 8 parts of pineapple leaf nano cellulose, 10 to 16 parts of modified starch, 10 to 15 parts of longan seed extract, 6 to 10 parts of mulberry bark extract, 5 to 8 parts of nicotinamide and 8 to 10 parts of hyaluronic acid. The pineapple leaf nanocellulose contains flavonoid and phenolic compounds with double-bond, conjugated double-bond and triple-bond structures, and modified starch is used as a filler to form a film on the surface of skin, so that an anti-ultraviolet protection wall is formed; the betaine-malate ionic liquid is added into the longan seeds, so that extraction of polyphenol in the longan seeds is improved, the longan seeds have acid-base buffering capacity, an auxiliary does not need to be added to adjust the pH value, the components of the prepared composition interact, and the whitening and freckle removing effects are achieved from multiple aspects of ultraviolet resistance, oxidation resistance, inflammation resistance and skin metabolism improvement.

The invention provides an amino acid frosted cleaning composition as well as a preparation method and application thereof. The amino acid frosted cleaning composition comprises a surfactant, an amino acid composition, a thickening agent, a humectant, an antioxidant, a pH regulator and water, the surfactant is a combination of cocoyl glycinate, cocamidopropyl hydroxy sulfobetaine, sodium cocoyl methyl taurine taurate, sulfonic acid hydroxypropyl ester lauryl glucoside cross-linked polymer sodium and glycolipid. According to the invention, a mild surfactant system with amino acid as a main component is adopted, so that the shampoo has rich and fine foam, quick foaming performance and easy washing performance, and the skin feeling is smooth and soft after washing. In addition, the system contains suspended crystal frosted particles formed by self-assembly of the amino acid composition, the appearance is novel, the better efficacy performance is achieved, and meanwhile the cleaning effect and the use comfort are improved.

The invention discloses an anti-aging face cream suitable for sensitive skin and a preparation method of the anti-aging face cream. The anti-aging face cream comprises 1-10 wt% of a supramolecular eutectic compound, 10-30 wt% of an auxiliary material and the balance of deionized water, the supramolecular eutectic compound comprises an anti-aging component, a supramolecular eutectic agent and Neosol-Aqulio, wherein the supramolecular eutectic agent is used for forming a supramolecular eutectic with the anti-aging component, and the Neosol-Aqulio is dispersed in the supramolecular eutectic; wherein the anti-aging component comprises oleuropein and hydroxytyrosol, and the supramolecular eutectic agent is nicotinamide, or a mixture of capryloyl glycine and betaine. Neosol-Aqulio, a supramolecular eutectic agent and an anti-aging component are utilized to form a supramolecular eutectic, so that active component delivery is facilitated, efficient transdermal absorption is realized, permeability, stability and mildness of the anti-aging active component are improved, the problem of sensitive skin cuticle permeation is solved, irritation of a traditional penetration enhancer is avoided, and the penetration enhancer is suitable for clinical application. The double effects of efficient permeation and mild anti-aging are realized.

The invention belongs to the technical field of new materials, and discloses a polyolefin dissolving agent as well as a preparation method and application thereof. The cleaning agent is composed of modified long-carbon-chain imidazole dinitrile amine salt, modified long-carbon-chain imidazole long-carbon-chain anion salt, betaine salt, imidazole acetate, imidazole long-carbon-chain anion salt, quaternary ammonium long-carbon-chain anion salt, imidazole bis (fluorosulfonyl) imide salt, imidazole hexafluorophosphate and long-carbon-chain anion and cation liquid. Under the condition of 180-210 DEG C, polyolefin (PP or PE) with the molecular weight of 50-8 million can be dissolved by adopting the polyolefin dissolving agent disclosed by the invention, and effective extrusion can be realized by adopting a twin-screw extruder after dissolution. After PP / PE powder is dissolved by adopting the polyolefin dissolving agent disclosed by the invention, sheet casting or spinning is carried out, casting sheets or PP / PE fibers are washed by using ethanol / dichloromethane / hydrocarbon / tetrachloroethylene to remove ionic liquid, and a polyolefin diaphragm or polyolefin fibers can be prepared.

The invention provides transparent shampoo with fluffy and anti-dandruff effects and a preparation method of the transparent shampoo. The shampoo comprises the following components in percentage by weight: 10%-20% of sodium laureth sulfate; 0.5% to 10% of ammonium laureth sulfate; 0.5%-10% of cocamidopropyl betaine, 0.5%-10% of 0.5%-10% of coconut oil fatty acid monoethanolamide; 0.5% to 10% of decyl glucoside; 0.6% to 1.5% of capryloyl glycine; 0.1% to 1% of cationic guar gum; 0.1% to 1% of polyquaternium-10; 0.1% to 1% of polyquaternium-11; 0.1% to 1% of polyquaternium-51; 0.01% to 2% of magnolol; 0.01% to 2% of menthol; 0.1%-1% of sodium chloride; 0.1%-1% of citric acid; and 0.1%-1% of disodium EDTA. The shampoo disclosed by the invention has the effect of improving the combing performance in a dry hair state, can effectively improve the smoothness of hair and the touch comfort during use, and also has a supporting effect and antibacterial and anti-dandruff effects. According to the shampoo process, the clarity and appearance stability of the product are remarkably improved, and the shampoo can be kept in a transparent and uniform state for a long time.

The invention discloses a mucosal epithelial cell targeted oral ROS response type nano-enzyme as well as a preparation method and application thereof, and relates to the technical field of biological medicines. The oral ROS response type nano-enzyme comprises Ce-CDs carbon dots and a betaine polymer, and the betaine polymer is coated on the surfaces of the Ce-CDs carbon dots to form nano-particles; the Ce-CCDs carbon dots are prepared by taking a metal cerium source and chlorogenic acid as raw materials through a pyrolysis method. Through structural innovation and function integration, the prepared nano-enzyme shows outstanding advantages in the aspects of catalytic activity, targeted delivery, collaborative treatment, industrial application and the like, a new technical scheme is provided for efficient and safe treatment of inflammatory bowel diseases, and the nano-enzyme has remarkable technical innovation and clinical application value.

The invention relates to the technical field of daily chemicals, and particularly discloses a scalp oil control composition for preventing alopecia seborrhoeica as well as a preparation method and application of the scalp oil control composition. The scalp oil control composition is prepared from the following main components: nicotinamide, capryloyl glycine, piralinone ethanolamine salt, betaine salicylic acid, lemon peel extract, white willow bark extract and rice fermentation filtrate. All the components have a synergistic effect, and the effects of controlling oil, protecting hair and preventing alopecia seborrhoeica are achieved. The preparation method disclosed by the invention is simple and convenient, and the obtained product is high in bioavailability of active ingredients, good in hair care effect and low in irritation, has the effects of caring hair, strengthening hair roots, regulating scalp micro-ecology and preventing seborrheic alopecia, and can be widely applied to related washing and care products for preventing seborrheic alopecia.

The invention discloses a composition for improving the stability of oleuropein in a solution as well as a preparation method and application of the composition. The composition comprises oleuropein and at least one stabilizer, and the stabilizer is selected from the group consisting of anisic acid, lactobionic acid, glycyrrhizic acid, 3, 3-thiodipropionic acid, N-acetyl-L-glutamine, propyl-cysteine and lauramidopropyl betaine; and the pH value of the aqueous solution of the composition is 4.0-8.0. The preparation method comprises the following steps: dissolving oleuropein in water, adding the stabilizer, and uniformly mixing. Through simple physical mixing, by utilizing the synergistic effect of the specific stabilizer and the oleuropein, the degradation and discoloration of the oleuropein in the storage process are remarkably inhibited. Experiments show that after the preferable composition is preserved for 30 days in an open manner, the retention rate of the oleuropein still reaches up to 80% or above, and is far superior to that of blank control and a traditional liposome wrapping method. The composition is simple and convenient in preparation process and low in cost, and provides reliable technical support for wide application of oleuropein in liquid products such as food, medicine and cosmetics.

A nutraceutical composition, consisting of Nicotinamide Mononucleotide in a range 250-1000 mg, Spermidine in a range 0.5-10 mg, Rhodiola Rosea in a range 200-600 mg, Cacao in a range 1000-10,000 mg, L-Theanine in a range 50-200 mg, Glucosamine in a range 500-3000 mg, and Hyaluronic acid in a range 50-240 mg, or consisting of Epigallocatechin-3-gallate in a range 100-500 mg, Quercetin in a range 250-1000 mg, Resveratrol in a range 150-1000 mg, Sulforaphane in a range 1-50 mg, and Calcium Alphaketoglutarate in a range 300-2000 mg, or consisting of Microdose Lithium in a range 1-5 mg, Trimethylglycine in a range 500-2000 mg, Glutathione in a range 250-1000 mg, Fisetin in a range 100-1000 mg, Urolithin A in a range 250-2000 mg, Sodium Butyrate in a range 100-3000 mg, Berberine in a range 500-1500 mg, Apigenin in a range 50-500 mg, Cinnamon in a range 1000-6000 mg, and Malate in a range 1000-6000 mg.

The invention belongs to the technical field of medicines, and particularly relates to a composition for improving obesity and promoting cardiovascular health as well as a preparation method and application thereof. The composition is prepared from the following components in parts by weight: 5 to 20 parts of glycine betaine, 1 to 5.5 parts of choline chloride, 0.5 to 4 parts of L-theanine, 1 to 15 parts of alpha-ketoglutarate calcium, 0.5 to 3 parts of black ginger extract, 0.05 to 0.25 part of black pepper extract, 0.5 to 3 parts of ginkgo leaf extract and 1 to 6 parts of black garlic juice powder. According to the invention, the eight components are selected and are scientifically combined in an optimal quantity ratio range, and the prepared composition can better reduce the inflammation level of a body, regulate abnormal blood fat, improve the lipid metabolism disorder state and effectively reduce impulsive diet behaviors, so that comprehensive improvement of obesity and cardiovascular related risks is realized, and the health-care effect of a human body is improved. The body is effectively assisted to maintain metabolic health.

The invention relates to amino silicone oil emulsion as well as a preparation method and application thereof, and belongs to the technical field of silicone oil emulsion. A preparation method of the amino silicone oil emulsion comprises the following steps: mixing amino silicone oil, cocamidopropyl betaine and polyether modified silicone oil to obtain a homogeneous oil phase, adding deionized water in a gradient manner, and carrying out double refining to obtain a homogeneous phase; 3-aminopropyltrimethoxysilane and polyether modified polydimethylsiloxane are added for treatment, a modified homogeneous phase is obtained, hydroxymethyl cellulose and porous nano-silica are added, and mixing is performed to obtain the coating. Through compounding of the amino silicon oil, the cocamidopropyl betaine, the polyether modified silicon oil, the amino propyl trimethoxy silane, the polyether modified polydimethylsiloxane and the porous nano silicon dioxide, the stability of the amino silicon oil is synergistically improved, and the fabric is endowed with good flexibility and durability.

The invention discloses a preserving fluid for stably preserving sample DNA at normal temperature and a preparation method thereof, and belongs to the technical field of biological sample preservation. The preserving fluid comprises a lysis system, a nucleic acid protection system and a buffering and stabilizing system, the cracking system comprises a composite surfactant and an enzymolysis auxiliary agent; the composite surface active agent is prepared from polyether polyol fatty acid ester and cocamidopropyl hydroxy sulfobetaine; the enzymolysis auxiliary agent comprises lysozyme Lyso-V and protease K; the nucleic acid protection system comprises a nitrogen heterocyclic polyamine-carboxylic acid derivative and dextran sulfate; the nitrogen heterocyclic polyamine-carboxylic acid derivative comprises 1, 4, 7, 10-tetraazacyclododecane-N, N ', N' ', N ''tetraacetic acid, 1, 4, 7-triazacyclononane-N, N', N''-triacetic acid, disodium ethylene diamine tetraacetate-nitrogen heterocyclic derivative, and diethylenetriamine pentaacetic acid-piperazine derivative, and the nitrogen heterocyclic polyamine-carboxylic acid derivative comprises 1, 4, 7, 10-tetraazacyclododecane-N, N ', N '', N'' tetraacetic acid, 1, 4, 7-triazacyclononane-N, N', N ''-triacetic acid. The buffering and stabilizing system comprises an amphoteric buffering agent and a polymer stabilizer; the amphoteric buffering agent comprises 2-(N-morpholino) ethanesulfonic acid and N-tri (hydroxymethyl) methylglycine.

The invention belongs to the technical field of anhydrous emulsions, and discloses an anhydrous self-emulsifying drug-loaded emulsion based on a deep eutectic solvent and a preparation method thereof.The preparation method comprises the following steps that 1, betaine and a hydrogen bond donor are mixed, the deep eutectic solvent is prepared through a mixed heating method, a drug is dissolved in the deep eutectic solvent, and a drug solution is prepared; the hydrogen bond donor is levulinic acid or lactic acid; (2) mixing Tween 80 and Span 80 according to a mass ratio of (1-2): 1 to obtain a surfactant, adding absolute ethyl alcohol as a co-emulsifier, adding isopropyl myristate, and uniformly stirring and mixing to obtain a dispersion liquid; and (3) dropwise adding the drug solution in the step (1) into the dispersion liquid in the step (2), and stirring at the same time to finally form the anhydrous self-emulsifying drug-loaded emulsion. According to the invention, the loading capacity, the stability and the bioavailability of the medicine can be obviously improved; in addition, the efficiency of transdermal drug delivery of the emulsion is high, and the emulsion can be applied to skin external preparations.

The invention relates to a method for prolonging the fresh-keeping storage period of garlic, belongs to the technical field of food fresh keeping, and provides a collaborative fresh-keeping method based on double-layer coating and low-temperature regulation aiming at the problems of short fresh-keeping period, quality reduction and the like caused by improper humidity control, microorganism breeding and germination in traditional garlic storage. The method is characterized by comprising the following steps: selecting damage-free garlic, pre-cooling and drying in the shade, and sequentially immersing the garlic into an inner-layer film coating liquid and an outer-layer film coating liquid, the inner-layer film coating liquid is prepared by compounding 8-12 mmol / L glycine betaine and 400-600 [mu] mol / L melatonin according to a ratio of (0.8-1.2): 1, the outer-layer film coating liquid is prepared from 1.5-2.5 wt% of sodium alginate, 1-1.5 wt% of hydroxypropyl trimethyl ammonium chloride chitosan, 0.2-0.5 wt% of nano zinc oxide and 0.1-0.3 wt% of calcium chloride, and the outer-layer film coating liquid is prepared from 1-1.5 wt% of sodium alginate, 1-1.5 wt% of hydroxypropyl trimethyl ammonium chloride chitosan, 0.2-0.5 wt% of nano zinc oxide and 0.1-0.3 wt% of calcium chloride. And filling the coated garlic into a mesh bag with the aperture of 0.08-0.12 cm, and storing in a refrigeration house with the temperature of 0-1 DEG C and the humidity of 65-75%. According to the method, water loss and microorganism breeding are inhibited through the composite coating, the storage period of garlic can be remarkably prolonged, the plumpness and flavor of garlic cloves are kept, and the method is suitable for large-scale storage and cold-chain transportation scenes.

The invention belongs to the technical field of cosmetics, and discloses a composition for promoting metabolism of hair papilla cells as well as a preparation method and application of the composition. The composition disclosed by the invention is prepared from the following components: a cacumen biotae extract, trehalose, betaine, acetyl tetrapeptide-3 and myristoyl pentapeptide-4. The components in the composition have a good synergistic effect, the mitochondrial membrane potential of the hair papilla cells can be obviously enhanced, the cell activity of the hair papilla cells is promoted, the cell metabolism function of the hair papilla cells is promoted, and therefore the health of hair follicles is effectively maintained.

The invention discloses an aqueous film-forming foam extinguishing agent based on a short fluorocarbon chain, and relates to the technical field of extinguishing agents. The invention discloses an aqueous film-forming foam extinguishing agent based on a short fluorocarbon chain. The cleaning agent is prepared from the following raw materials in parts by weight: 8 to 12 parts of modified short fluorocarbon chain surfactant, 5 to 8 parts of dodecyl dimethyl betaine, 50 to 60 parts of deionized water, 2 to 4 parts of modified guar gum, 4 to 6 parts of ethylene glycol, 1 to 2 parts of benzotriazole, 0.5 to 1 part of sodium bicarbonate, 0.3 to 0.5 part of polydimethylsiloxane, 3 to 5 parts of decabromodiphenyl ethane and 1 to 2 parts of sodium carboxymethyl cellulose. 0.5 to 1 part of disodium ethylene diamine tetraacetate, 0.2 to 0.4 part of isothiazolinone and 0.5 to 1 part of nano silicon dioxide. According to the aqueous film-forming foam extinguishing agent based on the short fluorocarbon chain, the modified short fluorocarbon chain surfactant and the nano silicon dioxide cooperate, so that a film is formed quickly and compactly, and the extinguishing efficiency is high; the modified guar gum improves the foam stability, and the foam holding time is long; the raw material ratio is scientific, and both equipment protection and fire control are considered; the preparation process is rigorous, the product quality is stable, and various fire extinguishing scenes are adapted.

The invention provides a biocompatible selective outer membrane of an implantable biosensor and a preparation method of the biocompatible selective outer membrane, and the preparation method comprises the following steps: preparing an outer membrane diluent, and respectively dissolving a PS-P4VP copolymer, NH2-PEG-NH2 and PEGDGE in the outer membrane diluent to obtain a mixed solution; the ratio of PS to P4VP of the PS-P4VP copolymer is (0.5: 9.5)-(3: 7); coating the surface of an enzyme layer of the in-vivo implanted sensor with the mixed solution, and curing for 48-56 hours at normal temperature, so that an amino group of NH2-PEG-NH2 and a pyridine group of P4VP form a dynamic covalent bond to obtain an inner layer; the inner layer is immersed in deionized water for 1.5 h or above, the uncrosslinked PEG derivative is eluted, and a porous inner layer is obtained; and coating the surface of the porous inner layer with a polysulfobetaine solution to obtain the hydrophobic antifouling coating. By adopting the technical scheme, the mechanical strength and the long-term stability are improved.

The invention relates to the field of washing, and particularly discloses sulfur tea tree essential oil silicone oil-free shampoo. The shampoo comprises the following raw materials: water; fatty alcohol polyoxyethylene ether sodium sulfate; coconut oil monoethanolamide; hydroxypropyl guar gum hydroxypropyl trimethyl ammonium chloride; disodium EDTA (Ethylene Diamine Tetraacetic Acid); cocamidopropyl betaine is added; an alkyl glycoside; sodium lauroyl sarcosine; allantoin; pPG-3 (Polypropylene Glycol) octyl ether; a polyquaternary ammonium salt-52; colloidal sulfur; d-panthenol; 10 parts of polyquaternium-10; a pearling agent; maltotetraose; tea tree essential oil; a preservative; a colorant; daily-use essence; and citric acid monohydrate. The preparation method comprises the following steps: sequentially adding the raw materials, dispersing and dissolving, adjusting the pH value, filtering and discharging. The shampoo disclosed by the invention can keep water-oil balance of scalp and reduce the problems of hair damage and dryness at the same time.

The invention discloses a hair-raising and protecting series composition for treating alopecia as well as a preparation method and application thereof, and relates to the technical field of medicines, and the composition is prepared from minoxidil, propylene glycol, menthol, betaine, an amino acid compound, glycyrrhizic acid, tocopheryl acetate, hinokiol, pyridoxine, ethanol and purified water. The preparation method comprises the following steps: mixing propylene glycol, minoxidil, menthol and ethanol, adding hinokiol, mixing, adding pyridoxine, an amino acid compound and betaine, mixing, adding tocopheryl acetate and glycyrrhizic acid, and mixing. According to the minoxidil composition, the absorption rate of minoxidil can be increased, the drug resistance of the minoxidil composition after being used for a long time is reduced, and the treatment effect of the minoxidil composition on various types of alopecia patients is effectively improved. The invention solves the problem that minoxidil and hinokiol are difficult to dissolve and easy to separate out, has the advantages of good absorption effect and lasting alopecia treatment effect, effectively improves newborn hair quality and scalp greasy state, and brings new dawn to alopecia patients.

The invention provides a feed premix for improving chicken quality. The fresh-keeping agent is prepared from the following components in percentage by weight: 5%-15% of a flavor enhancing component, 10%-25% of a tenderness improving component, 3%-10% of an antioxidant fresh-keeping component, 2%-3% of a function enhancing component and the balance of a carrier and a diluent, the function strengthening component is prepared from beta-alanine embedded citronella essential oil and konjac glucomannan zymolyte; the flavor enhancing component comprises a rosemary extract, a yeast culture and curcumin in a mass ratio of (2-4): (1-3): 1; the tenderness improving component comprises conjugated linoleic acid, L-carnitine modified by glutamine transaminase and betaine in a mass ratio of (3-5): (2-4): 1; the antioxidant fresh-keeping component is vitamin E and tea polyphenol in a mass ratio of (1-2): 1. Through multi-component synergism and functional targeting optimization, a three-dimensional quality improvement system with enhanced flavor, improved tenderness, oxidation resistance and fresh keeping is constructed, so that the chicken quality is comprehensively upgraded.

The invention relates to the technical field of polyphenol extraction, and provides a green pear polyphenol extraction method which comprises the following steps: performing steam explosion treatment on pear residue dry powder, and then infiltrating and activating by using an aqueous solution containing L-malic acid; adding betaine and D-gluconic acid into the first part of ultrapure water to prepare a deep eutectic solvent; mixing the eutectic solvent with a second part of ultrapure water to prepare a composite extracting agent; putting the infiltrated and activated raw materials and a composite extracting agent into an extraction device to obtain an extracting solution; carrying out solid-liquid separation on the extracting solution to obtain a clear solution; and adsorbing the clarified liquid through macroporous adsorption resin, then eluting with an ethanol water solution, collecting polyphenol-rich eluent, and carrying out spray drying to obtain the pear polyphenol extract. According to the technical scheme, the quality of an extracted product is improved, and polyphenol oxidation and thermal degradation are reduced; meanwhile, the product storage stability is improved, the phenomena of wall sticking and caking of powder are reduced, and the product yield and physical properties are guaranteed.

The invention relates to the technical field of crop cultivation. In particular to a rice leaf fertilizer and a fertilizing method and application thereof. The rice leaf fertilizer is prepared from the following components in percentage by weight: 10 to 20 percent of chitin derivative, 5 to 15 percent of compound amino acid, 5 to 10 percent of composted livestock and poultry manure, 5 to 15 percent of fulvic acid, 1 to 3 percent of zinc sulfate, 0.5 to 2 percent of borax, 0.2 to 0.5 percent of potassium silicate, 0.1 to 0.5 percent of polyether modified siloxane, 0.05 to 0.1 percent of rhamnolipid, 0.1 to 0.15 percent of betaine, 1 to 2 percent of sodium alginate and the balance of water. By applying the foliar fertilizer in drought and salt stress environments, the content of beta-glucan in rice is increased, the rice foliar fertilizer disclosed by the invention not only can be popularized for planting rice in northern drought regions in China, but also the planted rice has higher beta-glucan content, and has a health assisting effect on diabetics with limited starch consumption.

The invention provides plant-based sterilizing and acarus-killing shower gel for pets and a preparation method of the plant-based sterilizing and acarus-killing shower gel, and relates to the technical field of pet supplies. The plant-based sterilizing and acarus-killing shower gel for pets is prepared from the following components in percentage by mass: 3 to 8 weight percent of chinaberry seed extract, 1 to 3 weight percent of tea tree essential oil, 2 to 5 weight percent of thyme extract, 2 to 6 weight percent of wormwood extract, 8 to 15 weight percent of saponin plant extract, 2 to 4 weight percent of beta-cyclodextrin inclusion compound, 0.5 to 1.5 weight percent of sodium hyaluronate, 15 to 20 weight percent of amino acid surfactant, 5 to 10 weight percent of alkyl glycoside and the balance of water. The facial cleanser is prepared from, by weight, 3%-8% of cocamidopropyl betaine, 0.2%-0.8% of citric acid, 0.5%-2% of plant polysaccharide, 0.1%-0.5% of vitamin E, 2%-5% of glycerinum and the balance deionized water. Through synergistic compatibility of ternary plant active ingredients, application of a beta-cyclodextrin microencapsulation technology, selection of an amino acid surfactant and accurate control of the pH value, on the premise that no chemical preservative is added, perfect combination of efficient sterilization and mite removal, mildness, low irritation, lasting protection and excellent stability is achieved, and the effect of killing acarus is achieved. The method has important practical value and wide market prospect.

The invention discloses a modified polylactic acid fiber and a preparation method thereof. The preparation method comprises the following steps: providing polybasic hydroxyl-terminated D-polylactic acid; the method comprises the following steps: respectively providing betaine-grafted D-polylactic acid and a poly (butylene adipate terephthalate)-epoxy-polyether co-modified organic silicon-D-polylactic acid copolymer by taking the multi-hydroxyl-terminated D-polylactic acid as a main raw material, wherein the poly (butylene adipate terephthalate)-epoxy-polyether co-modified organic silicon-D-polylactic acid copolymer; and carrying out Haake blending and melt spinning on the betaine-grafted D-polylactic acid, a poly (butylene adipate-co-modified organosilicon-D-polylactic acid) copolymer, L-polylactic acid, an antioxidant and an anti-hydrolysis agent, so as to obtain the modified polylactic acid fiber. The preparation method comprises the following steps: carrying out Haake blending and melt spinning on the betaine-grafted D-polylactic acid, poly (butylene adipate-co-modified organosilicon-D-polylactic acid copolymer, L-polylactic acid, the antioxidant and the anti-hydrolysis agent. The modified polylactic acid fiber prepared by the method has the characteristics of easy decontamination, hydrophilicity, high temperature resistance and high toughness, and can effectively avoid water washing shedding, and the comprehensive performance is obviously improved.

The invention belongs to the field of food fresh-keeping materials, and particularly relates to a deep-eutectic propolis extract and CS / DPE composite film, a preparation method thereof and application of the deep-eutectic propolis extract and CS / DPE composite film in fresh-keeping films. The preparation method of the deep-eutectic propolis extract comprises the following steps: propolis is subjected to extraction treatment by adopting a deep-eutectic mixed solution containing a deep-eutectic solvent and water, the deep-eutectic solvent is a mixture of betaine and levulinic acid, and the extraction condition is that the polyphenol content in the obtained extracting solution is 25 mg / g or above and the flavone content is 250 mg / g or above; the obtained extracting solution is the eutectic propolis extract. The preparation method of the food preservative film comprises the following steps: mixing a chitosan solution and the eutectic propolis extract, casting to form a film, standing, and drying to obtain the food preservative film. The eutectic propolis extract obtained by the method provided by the invention is rich in polyphenols and flavones, and the mechanical property of the chitosan-based preservative film can be improved and the preservation effect on foods can be prolonged when the eutectic propolis extract is added into the chitosan-based preservative film.

The invention relates to the technical field of building material preparation, and particularly discloses a preparation process of a low-temperature fluid curing agent and a stabilized soil building material thereof, and the preparation process comprises the following steps: (1) adding modified starch into water, uniformly stirring, and removing oxygen; then adding maleic anhydride and persulfate, and heating to react; and after the reaction is finished, adding ethanol, separating out the precipitate, and drying to obtain the CMSS-g-MA. (2) adding glycine betaine into water, uniformly stirring, then adding CMSS-g-MA, and heating to react; and carrying out spray drying on the obtained reaction liquid to obtain the modified betaine powder. And (3) taking sulphoaluminate cement, ordinary Portland cement, a polycarboxylate superplasticizer, a silane coupling agent, the modified betaine powder, hydroxyethyl cellulose and the like as raw materials, and uniformly mixing the raw materials to obtain the low-temperature fluid curing agent. The solidified soil slurry can be better prevented from being frozen in a low-temperature environment, the stability of the internal structure of the solidified soil is kept, and a guarantee is provided for low-temperature construction.

The invention relates to the field of separation and purification, in particular to an anti-pollution nanofiltration membrane for magnesium-lithium separation, the anti-pollution nanofiltration membrane comprises a base membrane and a functional layer, and the functional layer is prepared from the following raw materials in parts by weight: a water phase: 1.5-2.5 parts of piperazine, 0.1-1 part of lauryl sodium sulfate, 0.5-2 parts of glycerol, 1-2 parts of triethylamine, 0.6-2 parts of ionic polymer, and the balance of water for supplementing the total amount of the water phase to 100 parts; the ionic polymer comprises at least one of sulfobetaine metacrylic acid ester, sulfobetaine and carboxyl betaine metacrylic acid ester; and an oil phase: 0.1-1 part of trimesoyl chloride, and the total amount of the oil phase is supplemented to 100 parts by normal hexane or isoparaffin. The ionic polymer is added, and a compact hydration layer is formed on the surface of the membrane by using a betaine group of the ionic polymer, so that the membrane pollution probability is reduced, and common inorganic scaling and organic pollution in the high-salt brine are remarkably inhibited; in addition, the ionic polymer enables the membrane surface to have strong negative electricity, and the magnesium ion rejection rate is improved; and the ionic polymer can also reduce the lithium ion transmission energy barrier and reduce the rejection rate.

The invention provides a high-foaming self-thickening amino acid cleaning composition and a preparation method thereof, and relates to the technical field of cosmetics. The high-foaming self-thickening type amino acid cleaning composition is prepared from the following raw materials in percentage by mass: main surfactants: 15%-20% of potassium cocoyl glycinate, 0.5%-2.0% of sodium cocoyl amino propionate and 0.05%-2% of sodium lauroyl glutamate; the auxiliary surfactant comprises the following components in percentage by weight: 1.2%-1.8% of sodium lauroamphoacetate, 1.8%-3.6% of lauryl hydroxyl sulfobetaine, 0.5%-1.5% of sodium methyl cocoyl taurate and 0.5%-1.5% of lauryl glucoside; and 0.5%-1.8% of an acrylic ester copolymer. The cleaning composition is free of fatty acid components, small in irritation, rich and dense in foam, good in foam performance, high in cleaning power, good in flushing performance, free of false slip after flushing and good in stability.

The invention discloses a recombinant bacillus paralicheniformis and an application of the recombinant bacillus paralicheniformis in production of betaine. According to the invention, bacillus paralicheniformis Bp1 with heavy metal cadmium resistance is used as a chassis strain, and an de novo synthesis pathway which takes glucose as a substrate and synthesizes glycine betaine through glycolysis, glyoxylic acid pathway and glycine methylation pathway in sequence is established in the bacillus paralicheniformis, so that the survival rate of the glycine betaine in cadmium-polluted soil is increased; the effects of the microbial soil treating agent and the microbial fertilizer are improved, so that the growth of the plant-black nightshade with an enrichment effect on cadmium and the absorption of the black nightshade on the cadmium in the polluted soil are promoted.

The invention discloses a multi-effect mild facial cleanser and a preparation method thereof, and belongs to the technical field of nursing products. The facial cleanser is prepared from the following components: EDTA-2Na (Ethylene Diamine Tetraacetic Acid), an amino acid surfactant, a glucoside surfactant, a betaine surfactant, glycolipid, glycerol, EGDS (Ethylene Diamine Tetraacetic Acid), propylene glycol laurate, water and the like. Based on the matching use of sodium lauroyl methyl aminopropionate, palmitoyl glycine and other amino acid surfactants, the facial cleanser can effectively overcome the technical problems of difficult thickening, poor foam stability and the like of a traditional amino acid facial cleansing product, and also can relieve chronic skin inflammation, restore skin balance and promote microangiogenesis, so that the facial cleanser has the effects of nourishing skin and improving skin quality. The skin is recovered to a young and compact state, and the full components are ensured to have a biodegradable characteristic.