144 results about "Sunset yellow" patented technology

The invention relates to a method for detecting concentration of nine compound coloring agents in auxiliary materials for reconstituted tobacco. The method comprises the following steps: preparing a mixture mother liquor of nine compound coloring agents, namely, lemon yellow, amaranth, indigo blue, carmine, sunset yellow, allura red, brilliant blue, acid red and erythrosine, and a sample solution; preparing a standard operation solution; and adopting a liquid chromatogram-series triple quadrupole spectrum analyzer for analyzing and detecting the concentration of the nine compound coloring agents in the sample solution. The method provided by the invention is accurate and reliable, is high in sensitivity and is very suitable for the analysis for the nine compound coloring agents in the auxiliary materials for the complex matrix reconstituted tobacco.

A method of preparing fluorescent carbon dots by adopting waste sugarcane molasses as a raw material and application of the fluorescent carbon dots are disclosed. The method includes weighing 4.0-6.0 g of the waste sugarcane molasses, performing pyrolysis at 240-260 DGE C, adding 4-6 mL of deionized water, filtering the mixture with a filter membrane having a pore size of 0.22 [mu]m, adding dropwise the filtrate into absolute ethanol, performing centrifugation for 5 min at a rotating speed of 6000 round/min, collecting a clear liquid, performing vacuum concentrating to remove the ethanol, adding the deionized water again, filtering the mixture with the filter membrane having a pore size of 0.22 [mu]m, collecting a filtrate, and freeze-drying the filtrate to obtain the fluorescent carbon dots. A preparing process of the fluorescent carbon dots is simple and raw materials are cheap. The fluorescent carbon dots have characteristics of good biocompatibility, good bleaching resistance performance, high optical stability, excellent fluorescent properties, and the like, and can be used for cell imaging and used for content detection of a food coloring agent that is sunset yellow.

The invention discloses a method for simultaneous determination of a plurality of synthetic pigments in hot pot flavorings. The method comprises extraction, concentration, purification and detection of new red, amaranth, carmine, allura red, erythrosine, sunset yellow, acid red G, acid scarlet GR, Rhodamine B, Para Red, sudan I, sudan II, sudan III, sudan IV, sudan orange G, sudan red 7B and a plurality of other synthetic pigments. The method for simultaneous determination of a plurality of synthetic pigments in hot pot flavorings provided by the invention has the advantages of simple steps and high accuracy and precision.

The invention discloses a chromatographic determination method of synthetic colorants in food. The method comprises the steps of extracting a sample, purifying the sample, preparing artificial colorant mixing standard application solutions, injecting the artificial colorant mixing standard application solutions into a liquid chromatograph for determination, detecting wavelength: 428mm of lemon yellow, 521mm of amaranth, 608mm of indicarmine, 509mm of carmine, 483mm of sunset yellow, 507mm of allura red, 625mm of brilliant blue and 529mm of erythrosin, obtaining liquid chromatograms and peak areas of the eight artificial synthetic colorants, drawing a standard series linear equation, injecting a sample solution into the liquid chromatograph for the determination, obtaining a chromatographic peak of the sample, determining the nature by retaining time, substituting a peak area of the sample into the standard series linear equation, calculating concentration of a target compound, performing quantification by an external standard method, and calculating the content of the eight artificial synthetic colorants according to a formula as shown in the specification. The method is rapid, simple, convenient, high in sensitivity, low in interference, accurate in result and good in reproducibility, and can be better applied to detection of a practical food sample.

The invention relates to a colorful oily fertilizer anticaking agent and an application thereof. The colorful oily fertilizer anticaking agent comprises components in percentage by mass as follows: 1%-3% of allura red aluminum lake, sunset yellow aluminum lake, indigo blue aluminum lake, fast green aluminum lake, purple aluminum lake, chocolate brown aluminum lake or brilliant black aluminum lake and 97%-99% of an oily anticaking agent, the components are milled by a horizontal milling machine and are mixed uniformly, and the colorful oily fertilizer anticaking agent is prepared; the colorful oily fertilizer anticaking agent is applied to fertilizer packaging, and accordingly, the fertilizer appearance color is corresponding red, yellow, blue, green, purple, brown or black. The colorful oily fertilizer anticaking agent and the application thereof have the advantages that the corresponding red, yellow, blue, green, purple, brown or black oily fertilizer anticaking agent is provided according to different colors of the fertilizer appearance, so that the fertilizer hue is stable, the packaging capacity is high, inner and outer colors are consistent, chromatic aberration and uneven dyeing are avoided, the color is uniform, and besides, the colorful oily fertilizer anticaking agent can be resistant to light and heat, is fadeless and non-discoloring and is taken as a fertilizer variety distinguishing and fertilizer anti-counterfeiting mark; the method is simple, the use cost is low, the anticaking performance is good, when the fertilizer is coated with the agent, the fertilizer loosening rate is up to or higher than 90%, biodegradation can be realized, and environmental protection is facilitated.

The invention discloses a method for rapidly detecting contents of lemon yellow and sunset yellow in a food. The method comprises the following steps of: preparing a standard solution of the lemon yellow and the sunset yellow; measuring the peak area of the standard solution of the pigments by using high performance liquid chromatography, and drawing a standard curve to obtain an equation of linear regression; filtering a liquid food sample or solid food sample solution, extracting by using an ionic liquid aqueous two-phase system composed of 1-butyl-3-methylimidzaole bromine salt and K2HPO4, and directly carrying out high performance liquid chromatography analysis on an ionic liquid after phase splitting; and respectively calculating the contents of the lemon yellow and the sunset yellow in the food according to the equation of linear regression. The method disclosed by the invention is simple in operation, free of a great deal of volatile solvents, short in separation time, good in ionic liquid phase mobility and capable of inter-dissolving with water or methanol and directly injecting for chromatography analysis. By using the method, the rapid, simple, convenient, environment-friendly, economic, qualitative and quantitative measurement can be provided for quality control departments and production enterprises.

The invention discloses an N-acetylcysteine pharmaceutical composition and a preparation method thereof. The pharmaceutical composition comprises an active component and excipients, wherein the active component is N-acetylcysteine and the excipients are cane sugar, sweet orange essence, aspartame, sunset yellow and flow aid. The preparation method is as follows: first, granulating the excipients of cane sugar, sweet orange essence, aspartame and sunset yellow and drying the obtained granules and then carrying out size stabilization to the dried granules; and then mixing with the active component N-acetylcysteine and the flow aid to obtain the granular N-acetylcysteine pharmaceutical composition. The granular N-acetylcysteine pharmaceutical composition provided by the invention is simple in preparation, wherein the raw material N-acetylcysteine is more stable, difficult to be destroyed, and is easy to mix with other excipients.

The invention relates to a dyeing method for a multi-color Chinese rose. The method includes the following steps: a white Chinese rose cut flower is prepared; Chinese rose dyeing liquid is prepared by using of 8-10 g/L of edible pigment, and the edible pigment comprises bright blue, lemon yellow, carmine, fruit green, grape purple and sunset yellow in color kinds; a Chinese rose stem is longitudinally cut and divided into three equal parts, the stem cutting depth is 3-7 cm, and cut stems are immersed into dehydrating agent to be treated in a dehydrated mode; the cut Chinese rose stems are respectively immersed into the dyeing liquid, and the immersion depth is 3-4 cm; and the cut Chinese rose stems are dyed for 24-48 hours. The rose is taken out, divided parts are cut, and a dyed Chinese rose cut flower is obtained. The dyeing method is very convenient, the dyed Chinese rose is stable and bright-colored in color luster, bright and colorful, and has more than three kinds of colors, and not only is original natural fragrance maintained, but also a 5-10 day sight-enjoying period of the cut flower is reached. Expressive force and sight-enjoying value of the Chinese rose are greatly increased, and the dyeing method for the multi-color Chinese rose has very high commercial value.

The invention discloses modified peanut shell adsorbent for treating sunset yellow dye wastewater and a preparing method and application thereof. The preparing method includes: washing, crushing and screening peanut shells; adding epoxy chloropropane into the screened peanut shell powder, mixing them well, adding NaOH solution to allow reaction, performing filtering, washing and drying after reaction so as to obtain epoxy cellulose ether intermediate; mixing the epoxy cellulose ether intermediate and ethylene diamine, adding Na2CO3 solution to allow reaction, performing filtering, washing and neutralizing after reaction, and performing drying to obtain the modified peanut shell adsorbent. By modifying the peanut shells with the epoxy chloropropane and the ethylene diamine, the physical strength of the modified peanut shell adsorbent is improved, the number of surface active functional groups is greatly increased, and adsorption effect of the peanut shells is enhanced. Additionally, wastewater is disposed via the peanut shells, disposing cost of the wastewater is effectively reduced, the great volume of existing low-cost green resources is made use, and a novel way to comprehensively use agricultural wastes is provided.

The invention provides a high-yield method for preparing Sunset yellow. Through the introduction of phase transfer catalyst in the process, the method improves reaction effect, improving the reaction percent conversion to be 98% and improving the HPLC purity of the Sunset yellow in the coupled liquid from the original 85.5% to 93.4%. The method can prepare high purity Sunset yellow with high yield and is of good economic and social benefits.

The invention relates to an identification method of fake and shoddy meat floss products. The identification method is used for identifying adulteration of meat floss via detecting pigments in meat floss, and can be used for detecting artificial pigments, including sunset yellow, lemon yellow, ponceau 4r, and basic orange II in meat floss at the same time. It is determined that whether adulteration of meat floss is performed via detecting whether meat floss contains artificial pigments. According to the identification method, the artificial pigments are easily water soluble, and the solubility in most organic solvents is extremely low, so that fat components are removed firstly, salting out is adopted for coagulation sedimentation of proteins so as to avoid protein influences, solid phase extraction is adopted to avoid polysaccharide and natural pigment influences, and concentration of a sample solution is carried out. The identification method is capable of solving a problem that solid phase extraction recovery rate of basic orange II is low; separation effect is excellent; specificity is high; detection limit and quantitation limit are low enough; linearity range is wide; repeatability is high; and the identification method is accurate and reliable, and can used for daily monitoring and detection.

The invention discloses a beautifying jelly lipstick. Each beautifying jelly lipstick is prepared from the following raw materials by weight: 1.60385g of squalane, 0.147g of polyisobutylene, 0.4375g of diisostearyl malate, 0.126g of dibutyl ethylhexyl glutamine, 0.084g of ethylenediamine/hydrogenated dimer dilinoleate copolymer bis-di-C14-18 alkylamide, 0.0392g of tridecyl trimellitate, 0.903g of ethylhexyl palmitate, 0.0035g of tocopherol, 0.00035g of nipasol, 0.00175g of essence, 0.0007g of CI 15985 sunset yellow, 0.00035g of CI 45410 phloxine, and 0.00035g of CI 15850 color lake. A paste of the lipstick provided by the invention is in the shape of crystal clear jelly, cannot stick to a cup, and does not fade; the color is intelligently mixed under temperature control according to a pH value of a human lip, the coloring time of the lipstick is prolonged while a good coloring degree is maintained, the lipstick has a moisturizing effect at the same time, cannot result in an agglomeration or sun crack phenomenon as the coating time is prolonged, and can always keep a lip moist; and meanwhile, lanolin is not added in the composition of the lipstick provided by the invention, so that the lipstick can avoid allergic reactions of allergic people caused by lanolin, and is safer to use.

The invention relates to an electrochemical sensor for quickly determining sunset yellow, a preparation method and an application in determining the sunset yellow. The electrochemical sensor is a glassy carbon electrode modified by a poly L-aspartic acid/acetylene black layer-by-layer assembly material. The particular method comprises the steps of placing an acetylene black modified glassy carbon electrode in 0.1mol/L PBS solution containing 2mmol/L L-aspartic acid and having pH (potential of hydrogen) of 7.0, and performing cyclic voltammetry scanning with a range of -0.8-2.0V at a speed of 100mV/s to prepare the L-ASP/AB/GCE (aspartic acid/acetylene black/glassy carbon electrode). The preparation method of the electrochemical sensor is simple, quick and good in stability; since oxidation peak current of the sunset yellow on the modified electrode can be effectively increased, the electrochemical sensor has a good electron conduction effect on an oxidation reaction of the sunset yellow; the sensitivity of an analytical method is remarkably improved; and in addition, the electrochemical sensor has sensitivity of determining the sunset yellow, is easy to prepare, low in cost and good in repeatability and has better application prospects in a detection aspect of the sunset yellow.

The invention discloses a raw material formula of the lemon lozenge and a preparation process thereof. The raw material formula comprises the following raw materials: lemon powder or lemon concentrated solution, excellent powdered sugar or xyllitol, glycyrrhizin, starch, one or more of lemon yellow or sunset yellow and lemon oil. The lemon lozenge solves the problem that the lemon is peracid and diet and cannot be directly eaten, and solves the technical problems for directly performing the fruit powder. The lemon lozenge has the advantages of effective biological activity and easy absorption, and maintains a great amount of nutrients and Vc of the lemon. The product is also a leisure product with low calorie and functions, not only maintains the original unique flavor of the lemon, but also maintains the biological activity and the unique pharmaceutical value of the lemon. The product is rich in vitamins, organic acid, limonoid, flavonoid and hemiterpene substances, can moisten the throat, and can diminish the inflammation. Organic acid can resist the fatigue, activate the blood vessel, and can promote the digestion of the human body, and also has the auxiliary functions for clearing the intestines and stomach, reducing the cholesterol, improving the appetite, and the like.

The invention discloses a compacting essence and a preparation method thereof, wherein the raw materials comprise 1,3-propylene glycol, butanediol, D-panthenol, EDTA-disodium, methylparaben, methyl gluceth-20, xanthan gum, Carbopol Ultrez 20, Tremella fuciformis sporocarp extract, polyethylene glycol-32, sodium hyaluronate, NuNu Gel, hydrogenated lecithin, polydimethylsiloxane, polyglycerol-10 myristate, squalane, arginine, bis-PEG-18 methyl ether dimethyl silane, a Cynara scolymus L leaf extract, palmitoyl tripeptide-5, total saponin of Panax notoginseng, nicotinamide, sodium PEG-7 olive oilcarboxylate, preservative, caramel, sunset yellow, essence, and deionized water. The compacting essence of the present invention has characteristics of safe components and significant wrinkle removingand compacting effect.

A novel IL-betaCD-RGO compound is synthesized through functionally reducing graphene oxide through in situ thermal reduction of graphite oxide by using an ionic liquid (IL) in the presence of betacyclodextrin. The dispersed RGO has good dispersion; and compared with betaCD individually functionalized RGO, the novel IL-betaCD-RGO compound has the advantages of obviously better dispersion of the RGO in water and substantially improved integral electric conductivity due to the introduction of the IL. The method is simple to operate, and is mild and green. The IL-betaCD-RGO compound combines the large specific surface area of the RGO, the high electric conductivity of the IL and the clathration effect of the betaCD on sunset yellow pigment molecules. A dispersion of the compound is dispensed on the surface of a glassy carbon electrode to produce an IL-betaCD-RGO compound modified glassy carbon electrode, so the dispersion is successfully applied to electrochemical detection of the dispensing in the food.

The present invention discloses a sunset yellow molecular imprinting detection electrochemical sensor preparation method. In the method, magnetic graphene is used as a carrier, the surface is modified with 1-butyl-3-methyl imidazole hydrobromide ionic liquid and nano Au, and a sunset yellow molecular imprinting polymer is prepared by addition of a sunset yellow template molecule, a functional monomer and a crosslinking agent on the basis of the polymer. The glassy carbon electrode surface is modified with the sunset yellow molecular imprinting polymer for construction of a sunset yellow molecular imprinting detection electrochemical sensor. The electrochemical sensor constructed on the basis of the imprinted material has high sunset yellow detection selectivity and sensitivity, and can achieve rapid and sensitive detection of a real sample.

The invention discloses a method for quickly detecting the content of amaranth and sunset yellow in foods, which comprises the following steps of: extracting pigments in the foods by utilizing an organic solvent-salt aqueous two-phase system, so that the amaranth and the sunset yellow are extracted into an organic phase for phase separation; and determining the content of the amaranth and the sunset yellow in the organic phase by using an ultraviolet-visible spectrophotometry. The limit of detection in the method is 0.05 mug/mL. The method has the beneficial effects that while the pigments are enriched, the matrix interference is effectively separated; and moreover, the extraction conditions are mild, the operation is simple, the determination speed is quick, effective and accurate and the like.

The invention discloses an electrochemical method for detecting sunset yellow in food. The method includes the steps: (1) synthesizing zinc oxide nano-flowers; (2) preparing carbon paste electrodes; (3) modifying the carbon paste electrodes with the zinc oxide nano-flowers; (4) preparing standard solution; (5) drawing a standard curve; (6) conventionally pre-treating samples needing to be detected when actual detection is achieved, measuring oxidation peak current values corresponding to the samples of sunset yellow according to experimental conditions, calculating according to a linear regression equation of the step (5) to obtain the content of the sunset yellow in the samples to be detected. The electrochemical method for detecting the sunset yellow in the foods is simple and convenient to operate, low in cost and high in sensitivity, and the electrodes are simple to prepare.

The invention provides a coating process for a colored sugar coating layer, relating to the technical field of the production of sugar-coated tablets. The coating process comprises the steps of coating an isolating layer, a colored layer and sugar coating layer and polishing, wherein the colored layer is a uniform mixture of talcum powder and a color lake, the ratio of the talcum powder to the color lake in the mixture is 1 to (0.01-0.0001), the color lake is one or more of lemon yellow aluminum color lake, a sunset yellow aluminum color lake, erythrosine aluminum color lake, allura red aluminum color lake, brilliant blue aluminum color lake, indigo blue aluminum color lake, red color lake, green color lake and purple color lake. The long-term problem that manufacturers have to give up the market supplying because of pigment migration of the sugar-coated tablets is solved.