120 results about "Anthocyanin" patented technology

The present invention relates to a colourant composition based on anthocyanins, comprising an extract of seedless Berberis vulgaris L. fruit and an extract of the skin of Myrtus communis L. fruit; to a method for preparing anthocyanin-based colourant compositions; and to the colourant composition obtained using the method. The present invention also relates to the uses of the colourant composition as a food colourant and, optionally, as a preservative and an antioxidant, and to food products comprising the colourant composition.

This invention belongs to the field of plant and component detection, specifically relating to a method for detecting anthocyanin content in different varieties of Hibiscus mutabilis and its application. The technical problem solved by this invention is to provide a method for detecting anthocyanin content in different varieties of Hibiscus mutabilis. The content detection method of this invention includes: A. Extraction and processing of Hibiscus mutabilis anthocyanin samples: mainly including optimization of flower pretreatment and extraction methods. B. Detection of the content of the extracted Hibiscus mutabilis anthocyanins using high-performance liquid chromatography (HPLC): mainly including optimization of parameters such as mobile phase type, mobile phase ratio, detection wavelength, and injection volume. This detection method can be applied to the correlation study between Hibiscus mutabilis flower color and components, for molecular breeding of Hibiscus mutabilis flower color, and for detecting the anthocyanin content of different Hibiscus mutabilis varieties to identify varieties that are difficult to distinguish.

The invention relates to an electrostatic spinning multifunctional packaging film with pH double responsiveness and a preparation method and application thereof, and belongs to the technical field of food packaging storage and detection. Oxidized sodium alginate with different oxidation degrees is obtained through periodate induction, the oxidized sodium alginate and carboxymethyl chitosan with amino are subjected to green crosslinking, polyvinyl alcohol is used as a spinning aid, then Nisin and anthocyanin are added into the polyvinyl alcohol, and the multifunctional packaging film with preservation and monitoring functions is prepared in combination with electrostatic spinning equipment. The packaging film obtained by the invention can intuitively reflect the change condition of freshness through rapid color change caused by the change of decay indexes of strawberries in the storage period on the basis of the high pH sensitivity of anthocyanin; under the same pH change condition, the release of Nisin can be intelligently regulated and controlled through the unique pH response characteristic of a Schiff base bond formed between oxidized sodium alginate and carboxymethyl chitosan, so that long-acting bacteriostasis is realized, and the shelf life of strawberries is remarkably prolonged.

The invention relates to the technical field of traditional Chinese medicines, in particular to a method for removing anthocyanin from dendrobium officinale and application. The technical problem to be solved by the invention is that the existing dendrobium officinale products are mostly purple in color and different in color depth, so that the cognition of consumers is influenced. According to the technical scheme, the preparation method comprises the following steps: adding fresh dendrobium officinale strips into an enzymolysis solution for enzymolysis; after the enzymolysis is finished, carrying out enzyme inactivation to obtain fresh dendrobium officinale strips subjected to enzymolysis treatment; and adding the fresh dendrobium candidum strips subjected to enzymolysis treatment into an ethanol solution, soaking and filtering to obtain a filtrate containing anthocyanin and the fresh dendrobium candidum strips with anthocyanin removed. The method is mainly used for efficiently removing anthocyanin from dendrobium officinale, so that a processed product is kept natural and green, the problem of discoloration is inhibited from the source, and the developed product can be ensured to keep the original green of dendrobium officinale stalks.

The invention discloses anthocyanin-protein composite powder with high stability as well as a preparation method and application of the anthocyanin-protein composite powder, and belongs to the technical field of biological food pigments. The preparation method comprises the following steps: mixing a black rice anthocyanin solution and a protein solution, stirring in a dark place, and freeze-drying to form the anthocyanin-protein composite powder. The anthocyanin-protein composite powder prepared by the method disclosed by the invention can be applied to the preparation of colored cold noodles, steamed buns and noodles, the stability of the black rice anthocyanin obtained by the method disclosed by the invention in tap water is improved, and the retention rate of the black rice anthocyanin in deionized water is also obviously increased; the starch is inhibited from aging to a certain extent, and the storage stability is improved. The anthocyanin in the prepared anthocyanin-protein composite powder is high in stability, the investment cost is low, and the anthocyanin-protein composite powder can be widely applied to the technical field of food processing and has wide application prospects in flour products.

The invention relates to the technical field of food packaging, in particular to a plasma modified polysaccharide intelligent packaging film and a preparation method and application thereof. The plasma modified polysaccharide film forming matter comprises a compound obtained by blending plasma modified polysaccharide and a water-soluble synthetic high-molecular polymer, and a nano-carrier loaded with a natural pH indicator. The invention aims to provide a degradable multifunctional intelligent packaging film which aims to overcome the defect that the stability of a natural indicator and the synergism of a film-forming substrate are insufficient. The method mainly solves the problems of degradation and migration of anthocyanin (ACNs) under the interference of light / heat / pH fluctuation and complex food matrix components, poor compatibility / dispersibility of a proteoglycan nano-carrier and a film-forming matrix, uneven color change caused by agglomeration, insufficient water resistance, biological activity, mechanical property and gas / water vapor barrier of a starch-based film and the like. And rapid, reversible and naked-eye-readable visual response can be realized in a pH / TVBN interval related to aquatic product spoilage.

The application discloses a sweet potato IbPSST2 gene and application thereof in promoting synthesis of anthocyanin of plants, and belongs to the technical field of genetic engineering.The nucleotide sequence of the sweet potato IbPSST2 gene disclosed by the application is shown as SEQ ID NO.1.The IbPSST2 gene has a remarkable function in regulating synthesis of anthocyanin of plants, and can be applied to quality improvement of sweet potatoes.

The invention relates to the technical field of electrical data processing, and provides an anthocyanin stabilizer screening method and system based on fusion of quantum chemistry calculation and machine learning. The method comprises the following steps: constructing a molecular structure data set; performing geometric structure optimization on the anthocyanin molecules and the candidate polyphenol molecules to obtain a ground state optimization structure; performing multi-dimensional molecule descriptor calculation on the candidate polyphenol molecules to obtain a polyphenol molecule descriptor matrix; performing structure optimization, single-point energy calculation and free energy calculation on the anthocyanin polyphenol compound system to obtain a combined free energy value set; integrating the polyphenol molecule descriptor matrix and the combination free energy value set, constructing a training data set, and performing feature screening; performing model training through a machine learning algorithm to obtain a combined free energy prediction model; and predicting the binding free energy of the anthocyanin polyphenol compound through the binding free energy prediction model to obtain candidate molecules of the anthocyanin stabilizer. The screening efficiency of the anthocyanin stabilizer is improved.

1. The name of the design product: packaging bottle (Schisandra chinensis anthocyanin microcapsule). 2. The use of the design product: for packaging. 3. The design points of the design product: the combination of shape, pattern and color. 4. The picture or photo that best indicates the design points: perspective view. 5. The design for which protection is sought contains color.

The invention discloses a method for improving yield of anthocyanin extracted by an enzymic method, according to the method, phospholipase is added and used to act on a cell membrane structure, so that the extraction rate of the anthocyanin and the extraction rate of galactoside in the anthocyanin are obviously improved, and the extraction effect of the anthocyanin is greatly improved through a three-stage enzymolysis system. The total enzymolysis extraction time is within 4 h, and compared with 6-7 h of a traditional enzymatic extraction process, the production period is greatly shortened.

The present application relates to the technical field of fermentation engineering, and specifically discloses an acidic beverage containing nano blueberry anthocyanins and a preparation method thereof, which comprises, in terms of weight parts, 400-450 parts of blueberry juice, 0.4-0.5 parts of nano blueberry anthocyanin powder, 50-60 parts of white granulated sugar, 8-10 parts of fructooligosaccharide, 40-50 parts of full-fat milk powder, 2-3 parts of pectin and 400-500 parts of purified water; wherein the particle size of the nano blueberry anthocyanin powder is not more than 100 nanometers, and the nano blueberry anthocyanin powder is coated nano blueberry anthocyanin powder; the present application provides an extremely efficient industrial processing scheme, which nano-treats blueberry anthocyanin raw materials, and at the same time, the nano blueberry anthocyanins are further coated with pectin-chitosan double layers, so that a dense physical barrier is formed by the double-layer coating; in addition, the small-particle-size raw materials can form a stable colloidal dispersion system in the beverage, thereby avoiding the agglomeration and sedimentation of ordinary micrometer-size particles due to gravity and molecular attraction.

The invention discloses prebiotics-enriched kombucha fermented castanopsis sclerophylla jelly which comprises the following components in parts by mass: 40-70 parts of castanopsis sclerophylla fermentation liquor, 3-15 parts of isomaltooligosacharide, 1-16 parts of purple sweet potato anthocyanin water extract, 6-22 parts of a composite coagulator and the balance of water. The invention also discloses a preparation method of the composition. Bitter taste of the castanopsis sclerophylla is reduced through kombucha fermentation, and flavor of the castanopsis sclerophylla is enriched; prebiotics (purple sweet potato anthocyanin and isomaltooligosacharide) are added for color mixing and seasoning, so that the sensory quality of the castanopsis sclerophylla jelly is enhanced, and meanwhile, the health effect of the castanopsis sclerophylla jelly is enhanced; by preparing the low-temperature composite coagulator, heating is not needed, the activity of probiotics in the jelly is kept to the maximum extent, and the effect of improving intestinal health is further enhanced. The fermented castanopsis sclerophylla jelly product with both prebiotics and probiotics is prepared by the method disclosed by the invention. Technical support is provided for development of high-added-value castanopsis sclerophylla food.

The invention relates to the technical field of packaging materials, in particular to an intelligent packaging film based on a multilayer packaging nanocomposite and a preparation method of the intelligent packaging film. On the basis of the anthocyanin CD-MOFs (core) with a physical adsorption function, an ovalbumin-sodium alginate (OVA-SA) nano-composite is innovatively introduced to construct a core-shell structure, and an OVA-SA shell and a CD-MOFs pore channel form a double barrier, so that the stability of the anthocyanin is remarkably improved; the OVA-SA shell is used as an interfacial compatibilizer, and the high chemical affinity of the OVA-SA shell and a corn starch / PVA matrix is utilized, so that nano-scale uniform dispersion of MOF particles in the matrix is realized, and agglomeration is effectively avoided; meanwhile, an active pH response gated release mechanism is formed, high stability is kept in the shelf life, shell response is triggered only when a decay product induces pH rise, anthocyanin is released, color development is carried out, and sensitive monitoring on the freshness of the high-protein food is achieved.

The invention discloses a preparation method of a waxberry composite preservative film, which comprises the following steps: adding waxberry anthocyanin, waxberry carbon dots and a plasticizer into a gelatin-K-carrageenan solution, uniformly stirring and mixing, ultrasonically degassing, forming a film by using a mixed solution, and drying at room temperature to obtain the waxberry composite preservative film, the preservative film has good water vapor and oxygen barrier property and excellent mechanical property; in addition, the film shows freshness indicating ability through pH responsiveness; meanwhile, the adopted preparation method is easy to operate and free of special equipment requirements, high-value utilization of waxberry waste is achieved, and the prepared composite preservative film has a huge application market prospect in the field of fresh-keeping packaging of meat which is prone to oxidation and microorganism breeding.

This invention discloses a slow-digesting pregelatinized yam powder loaded with anthocyanins and its preparation method, relating to the field of food ingredient technology. The preparation method includes the following steps: Step S1, preparation of multi-field assisted yam milk; Step S2, pregelatinization; Step S3, loading with anthocyanins; Step S4, spray drying. The yam powder disclosed in this invention exhibits high slow-digesting performance, excellent anthocyanin dispersibility and stability, and good color and taste.

The invention belongs to the technical field of wine brewing, relates to a natural sweet wine low-sulfur brewing method for delaying white grapes until the white grapes turn red and then harvesting the white grapes, solves the health hidden danger and flavor defects caused by high-sulfur addition in the traditional sweet white wine process, and remarkably improves the flavor quality of the wine at the same time. According to the method, complete and healthy red (total anthocyanin content is greater than or equal to 5mg / kg) fruits are selected through artificial spike selection and grain selection, and the cardinal number of infectious microbes in raw materials is reduced; no commercial yeast is added, natural slow fermentation is achieved by means of microorganisms, and the finished product is good in flavor and quality; gallic acid, condensed tannin and hydrolyzed tannin with a ratio of 1: 1: 1 are compounded to prepare wine-brewing tannin, and the wine-brewing tannin and low-dose sulfur dioxide construct a synergistic system, so that the sulfur consumption of sulfur dioxide is greatly reduced, secondary fermentation of high-sugar wine liquid is prevented, and infectious microbes and wine body oxidation are effectively inhibited. The finished product biogenic amine, pesticide and heavy metal residues all meet the safety standard, mycotoxin is not detected, meanwhile, the original flavor of the wine body is prominent, the storage stability is good, and dual guarantee of health and quality is achieved.

The invention belongs to the technical field of natural pigments, and particularly relates to a method for improving the performance of blueberry anthocyanin by using tamarind polysaccharide. According to the method for improving the performance of the blueberry anthocyanin by utilizing the tamarind polysaccharide, after a tamarind polysaccharide solution and a blueberry anthocyanin solution are prepared, the tamarind polysaccharide which is not subjected to enzymolysis or the tamarind polysaccharide which is subjected to enzyme treatment such as beta-galactosidase and the like is added into the blueberry anthocyanin solution for mixing; a blueberry anthocyanin stable solution is obtained; blueberry anthocyanin and tamarind polysaccharide in the blueberry anthocyanin stabilizing solution are compounded through non-covalent bonds such as hydrogen bonds, so that the stability of the blueberry anthocyanin in light, heat and digestive systems is improved, the oxidation resistance is enhanced, and the color is improved; therefore, the technical problem that the performance of the blueberry anthocyanin is easily reduced at present is solved.

The application discloses a kind of anthocyanin-loaded β-cyclodextrin-chitosan / chondroitin sulfate nanoparticles and preparation method and application thereof.The preparation method steps include: (1) β-cyclodextrin is dissolved in deionized water, anthocyanin is added, then stirring treatment is carried out, to obtain the anthocyanin-loaded β-cyclodextrin complex solution;(2) anthocyanin-loaded β-cyclodextrin complex solution is added with chitosan hydrochloride solution and chondroitin sulfate solution respectively, stirring treatment is carried out and pH is adjusted to 3.6-4.0 by adding acid, to obtain the anthocyanin-loaded β-cyclodextrin-chitosan / chondroitin sulfate nanoparticle solution.The anthocyanin-loaded β-cyclodextrin-chitosan / chondroitin sulfate nanoparticles prepared by the application have particle size of 101.41-117.7nm, and encapsulation efficiency reaches 91.3%-94.7%;Anthocyanin has good stability under high temperature, light, adverse pH environment and ascorbic acid stress conditions, and has slow release performance.

The application relates to the technical field of cat litter preparation, and discloses a mixed cat litter with antibacterial and color indicating functions and a preparation method thereof. The components of the mixed cat litter are mixed anthocyanins, sodium bentonite, taros, and honeysuckle in a mass ratio of 0.5-1.5:4:4:0.5-1.5. The mixed anthocyanins are a mixture of black carrot anthocyanins and camphor tree fruit anthocyanins in a mass ratio of 1:1. The cat litter prepared by the application has the functions of indicating the PH of cat urine, strong antibacterial function and strong color indicating function.

This invention belongs to the field of carbon dot technology in traditional Chinese medicine, and more specifically, relates to cinnamon carbon quantum dots, composite films, their preparation methods, and applications. The cinnamon carbon quantum dots provided by this invention are prepared from cinnamon as raw material through a hydrothermal reaction at 190–210℃ for 9–11 hours, followed by centrifugation and dialysis (molecular weight cutoff 900–1100 Da). The resulting particles are spherical with a particle size of 1.5–3.2 nm and contain O-C=O, C-O, and C-C functional groups on their surface. A composite film is prepared by mixing and drying chitosan, acetic acid solution, glycerol, and the cinnamon carbon quantum dot solution. This composite film, when used for preserving honeysuckle berries, can improve the rate of good fruit, reduce weight loss, and maintain nutritional indicators such as soluble solids, titratable acid, total phenols, ascorbic acid, anthocyanins, and flavonoids. Simultaneously, it reduces malondialdehyde content, inhibits respiration intensity, and maintains fruit firmness. It extends the shelf life by 4 days at 25℃ and by 10 days at 4℃, demonstrating promising application prospects in fruit and vegetable preservation.

The invention belongs to the field of biological medicines, and relates to a novel application of a cranberry extract. The invention provides an application of a cranberry extract in preparation of a medicine for preventing and treating polycystic ovarian syndrome (PCOS), and further provides an application of the cranberry extract in preparation of a medicine for preventing and treating thin endometrium related to the polycystic ovarian syndrome. The cranberry extract which is safe in source and definite in component is utilized, an overall solution which is clear in mechanism, achieves multi-target cooperation and can relieve PCOS symptoms and promote endometrial repair is provided for the first time, and the cranberry extract has important clinical significance. The cranberry extract contains six specific anthocyanins, has good potential in the aspect of improving PCOS and related thin endometrium problems, and provides new possibility for a treatment strategy of the disease.

The present invention relates to a spray patch composition for the indirect real-time determination of bacterial infections on superficial wounds by means of colorimetric pH detection. In particular, said composition is a sprayable composition comprising a plant extract comprising anthocyanins, at least one film-forming polymer capable of forming a polymeric film, at least one plasticizer, at least one surfactant; and at least one solvent. The present invention also concerns a process for the production of said spray patch composition and a kit containing it.

This invention discloses a blueberry anthocyanin nutritional solid composition for relieving eye discomfort. The composition comprises blueberry anthocyanin solid powder, algal oil powder, zinc gluconate, and selenium-enriched yeast, and may optionally contain lipid nutrients containing gamma-linolenic acid, as well as food additives and excipients. Oral administration of this composition provides the body with various nutritional supports related to ocular surface function and ocular moisture, helping to maintain tear secretion levels, improve tear film stability, and support the normal physiological state of the corneal epithelium, thereby relieving eye dryness and discomfort caused by environmental stimuli or increased eye strain. Animal experiments showed that after 14 days of continuous administration of the composition, experimental mice exhibited a significantly increased tear secretion volume compared to the control group without the composition, with an increase of approximately 165%. Corneal fluorescein staining scores were also significantly reduced, indicating improved ocular surface condition and significantly enhanced eye comfort.

The invention relates to intestine-moistening and bowel-relaxing sea-buckthorn tea and a preparation method thereof.The intestine-moistening and bowel-relaxing sea-buckthorn tea is prepared from fructus lycii, mulberries, hovenia dulcis thunb, raspberries, semen cassiae, sea-buckthorn and longan aril and is prepared by adding plant extract powder, functional auxiliary materials, a flavoring agent and synbiotics, and the plant extract powder comprises Chinese yam, spina date seeds, oat, fructus cannabis and corn stigma; the functional auxiliary materials comprise ginger juice, balm extract powder, baked soybean powder and blueberry anthocyanin; the flavoring agent comprises mogroside and lemon powder; the synbiotics comprise probiotics and prebiotics. The invention provides a bowel-relaxing tea drink which is good in taste and mild and lasting in function, is characterized in that the bowel-relaxing tea drink is mild in intestine moistening, does not hurt the body, is suitable for long-term conditioning of weak constipation people who are not suitable for strong laxative, and is especially suitable for middle-aged and elderly people with weak constitution.

Provided herein are polyphenol-enriched lettuce powders comprising particles of a polyphenol-enriched lettuce or extract, wherein the polyphenol-enriched lettuce comprises from 40-280 mg / g of polyphenols. The polyphenols include any combination of a chlorogenic acid, a neochlorogenic acid, a chicoric acid, a quercetin, a quercetin derivative, and an anthocyanin. The disclosure also provides compositions and methods of using the polyphenol-enriched lettuce powders to promote wound healing and treat inflammation and skin disorders.

The invention relates to an anthocyanin nano system for promoting cell transport and absorption and a preparation method and application thereof, and belongs to the technical field of nano delivery carrier design and functional active ingredient absorption and utilization. The preparation method of the anthocyanin nano-system for promoting cell transport and absorption comprises the following steps: under a stirring condition, dropwise adding an anthocyanin solution into a phenolic acid modified zein solution, fully combining, adding a sulfhydrylated hyaluronic acid solution, stirring, carrying out ultrasonic treatment, and carrying out an anti-solvent precipitation method to obtain the anthocyanin nano-system. The nano delivery system which can actively recognize and utilize the anthocyanin forward transporter SGLT1 / GLUT2 and inhibit P-gp efflux is constructed, the gastrointestinal tract stability of the anthocyanin is improved, the uptake rate and bioavailability of small intestine epithelial cells are improved from the mechanism, and the nano delivery system has safety and applicability and is suitable for industrial production. The method is suitable for being popularized in the field of functional food ingredients or drug delivery, and has remarkable innovativeness and application value.

The invention discloses flexible amyloid fiber gel based on albumin and lysozyme as well as a preparation method and application of the flexible amyloid fiber gel, and belongs to the field of delivery of natural high polymer materials and bioactive substances. The method comprises the following steps: respectively preparing ovalbumin fibers (OVAf) and lysozyme fibers (LYZf), mixing according to a volume ratio of 2: 1, adding resveratrol with a final concentration of 100 [mu] mol / L, and incubating at 37 DEG C for 3 h to form flexible gel; according to the gel, ordered crosslinking of fibers is induced through resveratrol, a uniform three-dimensional network is formed, and the gel has good elasticity and flexibility; when being used as a carrier to embed active ingredients such as anthocyanin, the nano-carrier can significantly improve the storage stability and digestion environment tolerance, and has excellent biocompatibility. The invention provides a new scheme for efficient delivery of bioactive components, and can be applied to the fields of functional foods, biological medicines and the like.

The application relates to a cranberry anthocyanin acylation derivative and a preparation method thereof. The preparation method of the cranberry anthocyanin acylation derivative comprises the following steps: preparing a cranberry anthocyanin crude extract; dissolving the cranberry anthocyanin crude extract with an organic alcohol, adding a fatty acid acyl donor and uniformly mixing, adding a lipase, promoting a catalytic reaction in a constant-temperature oscillation mode, obtaining a cranberry anthocyanin acylation reaction solution after reaction; and separating and purifying the acylation reaction solution through liquid-liquid extraction and medium-pressure liquid chromatography, and obtaining high-purity cranberry anthocyanin acylation derivatives through freeze-drying. The cranberry anthocyanin acylation derivative is prepared by using the cranberry anthocyanin crude extract as a raw material to perform an enzymatic acylation reaction, the reaction acylation rate is further improved by optimizing the reaction conditions, the lipophilicity, thermal stability and light stability of the cranberry anthocyanin acylation derivative prepared by using the above method are significantly improved, and the cranberry anthocyanin acylation derivative has excellent antioxidant capacity in both water phase and a lipid system.

This invention relates to the field of functional liquid crystal materials technology, and discloses a method for preparing and applying a spiropyran-based ionic conductive cholesteric phase liquid crystal elastomer with multimodal sensing characteristics. This liquid crystal elastomer is prepared by co-polymerization of a spiropyran derivative as the core unit for photo / thermal / mechanical response with polymerizable liquid crystal monomers, chiral agents, thiol crosslinking agents, ionic liquids, and initiators. Its core mechanism is that the microscopic isomerization of spiropyran molecules is amplified into a change in the mesoscopic polymer arrangement through intermolecular synergistic effects. Simultaneously, relying on the intrinsic conductivity difference between the ionic anthocyanin (MC) and non-ionic spirocyclic (SP) phases, precise control of macroscopic conductivity is achieved. This composite material achieves multiple responses with a single spiropyran component, enabling the construction of multimodal flexible sensors. It addresses the pain points of complex structures and poor compatibility in traditional sensors, and has significant research value in fields such as smart wearables, electronic skin, and healthcare.

The invention discloses an anthocyanin ingredient containing milk fat globules and a preparation method thereof.The preparation method comprises the specific steps that the milk fat globules are extracted from fresh raw milk, anthocyanin and the milk fat globules are added into deionized water to be emulsified, and the anthocyanin emulsion type ingredient containing the milk fat globules is obtained; wherein anthocyanin in the ingredients and a fat membrane of the milk fat globules form a specific structure, and the specific structure is rich in long-chain unsaturated fatty acid and medium-chain fatty acid in a specific ratio of 1: (7-10) after being digested by in-vitro simulated gastrointestinal fluid. The anthocyanin ingredient containing the milk fat globules is a novel stable emulsion taking the natural milk fat globules as an anthocyanin carrier, is particularly suitable for being used as an ingredient of nutritional and healthy food, and is wide in application range. And the preparation method adopts a probe type ultrasonic combined high-speed shearing technology, so that the obtained emulsion is better in dispersity and stability, simple, efficient, green and safe.