19 results about "Cholestanols" patented technology

The present invention relates to the technical field of eye drops, and specifically discloses a kind of wetting boric acid eye drops. The present invention also discloses a preparation method of the above-mentioned wetting boric acid eye drops, boric acid, chlorhexidine gluconate solution, and calcium disodium edetate are added to water, and stirred at 60-70°C to obtain a boric acid complex; sodium hyaluronate and sodium alginate are added to water and stirred, and hypromellose is added, and stirred at 30-40°C to obtain a hypromellose complex; soy lecithin, cholesterol, and ethylparaben are added to chloroform and stirred to obtain phase A; collagen and carboxymethyl chitosan are added to citric acid aqueous solution and stirred to obtain phase B; phase A is added to phase B under stirring, ultrasonic treatment, 50-60°C vacuum rotary evaporation to remove chloroform, citric acid aqueous solution is added for hydration, ultrasonic treatment, and filtration to obtain liposomes; boric acid complex, hypromellose complex, and liposomes are mixed evenly, and the pH value of the adjustment system is 6.5-7.5.

The invention discloses a novel microcapsule flame retardant and a preparation method thereof, and relates to the technical field of flame retardants. According to the novel microcapsule flame retardant, a novel biological matrix material is prepared from carboxymethyl chitosan. Then taking NF-grade cholesterol and a novel biological matrix material NF-carboxymethyl chitosan derivative as a shell material, and taking phosphoric acid metal salt as a capsule core; the novel biological matrix material carboxymethyl chitosan derivative shell material is low in cost, green and non-toxic, and is emulsified and cross-linked with NF-grade cholesterol, so that the flame retardant can be better coated, the surface of the flame retardant can be modified, and the microcapsule flame retardant has excellent and lasting flame retardant property. The flame retardant can be used for flame retardant modification of unsaturated polyester resin, the vertical combustion grade of the obtained flame retardant unsaturated polyester resin reaches V1, the limit oxygen index is 33%, and the flame retardant unsaturated polyester resin has good flame retardance, is suitable for high flame retardant requirements, has the smoke density grade of 58, and is low in smoke density and environmentally friendly.

Since it separates into at least an emulsion layer and an aqueous layer during standing, it has excellent aesthetic properties. When used, it can be uniformly redispersed by gently shaking, so it also has excellent usability. In addition, it has good storage stability, and further provides a multi-layer cosmetic excellent in the softness of the back skin. 【Means for Solving the Problem】 The following components (A) to (G): (A) Phospholipid (B) Cholesterol and / or phytosterol (C) Phosphoric acid-based surfactant (D) Oil agent (E) Sodium polyaspartate (F) Water-swelling clay mineral (G) Water A multi-layer cosmetic containing the above components.

To provide ink for inkjet printer which is capable of marking under a normal temperature environment by using an inkjet printer, and applicable to marking on refrigerated products or frozen products, and a temperature indicator using the ink.SOLUTION: Ink for inkjet printer according to the present invention is ink in which temperature indicator is dissolved into solvent, where the temperature indicator contains leuco dye, developer and decoloring agent, the decoloring agent is a mixture of a plurality of kinds of cholesterol derivative, each of the plurality of kinds of cholesterol derivative has predetermined polar group, polar site and / or polar structure by 1 or more and 3 or less, and the solvent is a mixture of main solvent having relatively high volatility and sub solvent having relatively low volatility.SELECTED DRAWING: Figure 2

The invention discloses a sodium ion battery positive electrode slurry and a preparation method thereof, a positive electrode sheet and a sodium ion battery, wherein the preparation method of the sodium ion battery positive electrode slurry comprises the following steps: (1) mixing N-methyl pyrrolidone with cholesterol dodecyl carbonate and a weakly acidic substance to obtain a solution; (2) mixing the obtained solution with a binder to obtain a glue solution; (3) mixing the obtained glue solution with a conductive agent to obtain a conductive glue; (4) mixing the obtained conductive glue with a sodium-containing layered transition metal oxide to obtain a sodium ion battery positive electrode slurry. The present invention optimizes the slurry formula and process, adds a hydrophobic material, forms a hydrophobic layer on the surface of the positive electrode sheet, and simultaneously adds a weakly acidic substance to reduce the side effects of residual alkali on the surface of the sodium-containing layered transition metal oxide, thereby improving the baking effect and the production efficiency and recycling performance of the battery.

This invention discloses a *Lactobacillus plantarum* YBE2 and its applications. The *Lactobacillus plantarum* provided by this invention, which produces a high amount of extracellular polysaccharides primarily composed of rhamnose, can simultaneously degrade different types of bile salts, including specifically hydrolyzing glycocholic acid. It also exhibits cholesterol-lowering and acute inflammation-relieving effects. Furthermore, *Lactobacillus plantarum* YBE2 can reduce fat deposition in the abdomen of caged broilers, increase intramuscular fat, promote fatty acid deposition in muscles, and reduce plasma total bile acids, triglycerides, and low-density lipoprotein cholesterol. This significantly improves lipid metabolism and muscle quality in poultry, and can be widely applied in caged broiler farming to promote healthy poultry farming and improve farming efficiency.

The invention discloses a preparation method of 7-p-toluenesulfonyl hydrazone-3-cholesteryl acetate. The 7-p-toluenesulfonyl hydrazone-3-cholesteryl acetate The invention provides a preparation method of a compound shown in a formula I. The preparation method comprises the following step: in an aprotic solvent, in the presence of acid, anhydride and an adsorbent, a compound shown in a formula II and a compound shown in a formula III are subjected to a reaction shown in the specification to obtain the compound shown in the formula I. The method is mild in reaction condition, high in reaction speed, high in conversion rate and few in side reaction, and the compound shown in the formula I and with the purity larger than or equal to 98.5% can be obtained; the obtained crystal particles are large in particle size and high in filtering speed; the method has good process conditions and is suitable for large-scale industrial production.

The invention relates to the technical field of methacrylate synthesis, in particular to a catalyst for methacrylate synthesis and a preparation method thereof. The catalyst for synthesizing methacrylate is prepared from the following raw materials in parts by mass: 1 to 3 parts of tetrabutyl orthosilicate, 5 to 10 parts of phospholipid, 1 to 2 parts of cholesterol, 0.1 to 1 part of zirconium nitrate, 5 to 10 parts of cesium nitrate and 1 to 2 parts of graphene oxide. The obtained catalyst is used in a fixed bed reactor, methacrylate can be continuously produced with high activity and high selectivity, the catalyst is good in stability and good in continuous repeated regeneration effect, and the preparation method of the catalyst is simple, easy to control, suitable for large-scale industrial application and environmentally friendly.

The present invention provides a composition, a flour composition, a pasta product and a method for manufacturing the same. The composition of the present invention comprises: phytosterols and wheat germ, wherein the mesh number of the phytosterols is 80 to 120 meshes, and the mass ratio of the wheat germ to the phytosterols is 1:1 to 5:1. The present invention effectively solves the problem of peeling and delamination during the noodle pressing operation. When the composition of the present invention is used to make pasta products such as noodles, the noodles do not peel and delaminate during the noodle pressing operation. The noodles and other pasta products produced have a smooth surface, uniform thickness, a chewy and smooth taste, are rich in nutrients, and can significantly reduce cholesterol.

Disclosed in the present invention are a kit for detecting 15 bile acid profiles and three bile acid precursors in serum simultaneously and a detection method therefor. The 15 bile acid profiles comprise: cholic acid, deoxycholic acid, chenodeoxycholic acid, ursodeoxycholic acid, lithocholic acid, glycocholic acid, glycodeoxycholic acid, glycochenodeoxycholic acid, glycoursodeoxycholic acid, glycolithocholic acid, taurocholic acid, taurodeoxycholic acid, taurochenodeoxycholic acid, tauroursodeoxycholic acid and taurolithocholic acid; and the three bile acid precursors comprise: 3α,7α-dihydroxycoprostanic acid, 3α,7α,12α-trihydroxycholestanoic acid and 7α-hydroxy-4-cholesten-3-one. The kit and detection method of the present invention enable the simultaneous and accurate detection of the 15 bile acid profiles and the three bile acid precursors, with a short detection time and a high detection accuracy. This, to a certain extent, meets the clinical need for assessing the enterohepatic cycle composed of the biliary system, intestines, portal venous circulation and hepatocytes.

The invention discloses a preparation method of a fluorine bone triol intermediate, which comprises the following steps: (20S)-3beta-acetoxy-20-methyl-21-iodo-pregna-5-ene as shown in a formula II is taken as a raw material, and 26, 26, 26, 27, 27, 27-hexafluoro-25-hydroxycholesterol is prepared through four steps of reaction, namely coupling, ester hydrolysis, trifluoromethyl substitution and trifluoromethyl addition, and the reaction formula is as shown in the specification. The method has the advantages of simple process, cheap and easily available reagents, and suitableness for industrial production.

The invention discloses a preparation method and application of a terpene alcohol body of permeation-enhancing conopeptide, and belongs to the technical field of cosmetics. The terpene alcohol body for enhancing the permeation of conopeptide provided by the invention comprises the following components in percentage by mass: 1 to 15 percent of phospholipid, 0.1 to 10 percent of lysophosphatidylcholine, 0.5 to 3 percent of cholesterol, 0.01 to 2 percent of terpene, 2 to 50 percent of polyhydric alcohol, 0.001 to 1 percent of conopeptide and the balance of deionized water. On the basis of molecular docking, phospholipid and lysophosphatidylcholine with specific types and proportions are screened and used for entrapment of conopeptide, and terpene alcohol with stable structure and conopeptide entrapment efficiency greater than 90% is obtained; according to the preparation method, a terpenol body is added, a lysophosphatidylcholine, terpene and polyhydric alcohol ternary permeation enhancing system is uniformly integrated to the terpenol body, finally, the transdermal capacity of conopeptide is remarkably enhanced, the transdermal depth of conopeptide is promoted, the intradermal cumulant of conopeptide is increased, and a foundation is laid for achieving the effect of the conopeptide in cosmetics.

The invention provides a spray based on nano shea butter and a preparation method thereof, and belongs to the technical field of cosmetics, the spray based on nano shea butter comprises the following raw materials: 18-22 wt% of shea butter, 2-4 wt% of soya bean lecithin, 0.4-0.6 wt% of cholesterol, 0.4-0.6 wt% of tocopheryl acetate, 0.7-1.2 wt% of sucrose stearate, 0.1-0.2 wt% of a preservative, 4-6 wt% of 1, 3-propanediol, 1, 3-propanediol, 1, 3-propanediol and the balance of water. The skin care product is prepared from 1, 3-butanediol, 2 to 4 weight percent of glycerol, 0.2 to 0.4 weight percent of peptide, 1.5 to 3 weight percent of Chinese herbal medicine extract, 1 to 2 weight percent of vitamin C, 0.1 to 0.3 weight percent of hyaluronic acid, 0.04 to 0.06 weight percent of sodium phytate and the balance of water. The skin care spray prepared by the invention is good in stability, free of oil-water separation phenomenon, quick to absorb and free of sticky feeling, and has the effects of moisturizing, whitening and astringing.

The present invention discloses the application of Hericium erinaceus He-02-06 in increasing the soluble dietary fiber content in corn. The Hericium erinaceus He-02-06 has a strain collection number of CCTCC NO: 20221043; Application of the described Hericium erinaceus He‑02‑06 in increasing the soluble dietary fiber content in corn; A method for preparing corn bran soluble dietary fiber, which comprises: preparing a corn bran solid-state fermentation medium, inoculating Hericium erinaceus He‑02‑06, and culturing at 22-30°C for 5-10 days; weighing the fermented sample, sieving, adding water, extracting in a high-temperature water bath for 1.5-2.5 hours, cooling, centrifuging, and retaining the supernatant; adding ethanol, standing at low temperature for 6-12 hours, and drying; Beneficial effects: After fermentation, the water holding capacity, swelling capacity, and oil holding capacity of the corn bran SDF are increased to 1.57 times, 1.95 times, and 1.80 times, respectively, the adsorption properties of the corn bran SDF are enhanced, and the adsorption capacity for nitrite, cholesterol, and bile salts are all improved to a certain extent.

The invention relates to the field of organic synthesis, in particular to a method for synthesizing dihydrocholesterol by catalytically hydrogenating cholesterol, cholesterol is used as a raw material, hydrogenation reaction is performed in the presence of a hydrogen donor and a Pd / CuO-Al2O3 catalyst to generate dihydrocholesterol, direct use of hydrogen as the raw material is avoided, safety is good, the green chemical industry trend is met, reaction conditions are mild, and the method is suitable for industrial production. The reaction temperature is low, the reaction time is short, and the industrial production application prospect is good.

The invention relates to the technical field of food and feed additives, and discloses application of a tea polyphenol preparation in reduction of egg cholesterol. The tea polyphenol preparation comprises high-purity tea polyphenol, a phospholipid complex, phytosterol, bile acid binding resin and a microcapsule wall material. By limiting the purity and component composition of tea polyphenol, a phospholipid-mediated nano delivery system is constructed, a dual mechanism of bile acid adsorption and phytosterol competitive absorption is introduced, and the stability of active components in the feed processing and digestion process is guaranteed by adopting a microcapsule technology; the technical scheme which is definite in component, clear in action path, convenient to use and repeatable in effect is formed, the defects that in the prior art, multiple components are mixed, the mechanism is unknown, operation is tedious, raw materials are limited and the like are effectively overcome, and reliable technical support is provided for industrial production of the low-cholesterol functional eggs.

The invention discloses an LCP special fiber and a preparation method thereof, and relates to the technical field of LCP fibers. The LCP special fiber is prepared by mixing LCP resin, a vinyl fibrous filler, an unsaturated monomer and a photoinitiator, carrying out melt jet direct spinning, rapid cooling and winding, and then carrying out ultraviolet irradiation curing, the LCP resin is prepared by carrying out hydrosilylation on cholesterol oleate, an acylamino-containing monomer and hydrogen-containing polymethylsiloxane to obtain a liquid crystal polymer, and the liquid crystal polymer is prepared by carrying out melt jet direct spinning, rapid cooling and winding. An amide group and a smooth Si-O-Si chain segment are introduced into a polymer molecule and cooperate with long-chain alkyl of cholesteryl ester, so that the flexibility, the mechanical property and the bending resistance of the fiber are remarkably improved; a three-dimensional network is formed through filler enhancement and illumination curing, and a rapid cooling process is combined, so that the obtained LCP special fiber has high strength, high wear resistance, excellent bending resistance and low after-shrinkage rate.

The invention discloses a production method and application of a bile acid and Chinese herbal medicine combined feed additive. The additive is prepared from the following raw materials in parts by weight: 30-50 parts of rhizoma alismatis, 15-25 parts of hawthorn, 10-20 parts of radix bupleuri, 5-15 parts of an artemisia apiacea extract, 2-8 parts of berberine, 5-15 parts of pericarpium citri reticulatae, 10-20 parts of poria cocos and 5-10 parts of liquorice. Based on the compatibility theory of'monarch, minister, assistant and guide 'of traditional Chinese medicine, various Chinese herbal medicine active ingredients such as rhizoma alismatis, hawthorn, radix bupleuri, artemisia apiacea extract, berberine, pericarpium citri reticulatae, poria cocos and liquorice are selected and scientifically formulated, all the ingredients are clear in division of labor and have a synergistic effect, the rhizoma alismatis serves as the monarch, and cholesterol metabolism is directly regulated and controlled; multi-target synergistic interaction of promoting bile acid synthesis, inhibiting inflammatory response, remodeling intestinal microecology, repairing intestinal liver circulation steady state and the like is realized, the action mechanism is clear, and the effect is superior to that of a single component or a simple mixture.