21 results about "Purple corn" patented technology

The invention belongs to the technical field of extraction and purification of plant components, and relates to a low-temperature freezing vacuum drying nano processing method for extracting anthocyanin from purple corn, in particular to a method for extracting anthocyanin from corn kernels, cores, straws, roots and stigmas of purple corn. The processing method comprises the steps of pretreatment, concentration, hydroxyl radical treatment, quick freezing, nano crushing and the like. A hydroxyl radical treatment method is adopted, so that harmful substances such as pesticide residues can be efficiently, quickly and thoroughly removed; the effect of extracting the anthocyanin from corn kernels, roots, cores, stems and stigma of purple corn by adopting a low-temperature freezing vacuum drying technology is remarkable, the purification rate is high, and the anthocyanin containing 99% of biological activity is achieved. The nanoscale anthocyanin is processed by adopting jet mill equipment and can be conveniently absorbed by a human body and widely applied to various fields.

The application discloses a pH-responsive degradable composite bacteriostatic film derived from waste bone powder extract and a preparation method thereof. The main components of the film are collagen and hydroxyapatite extracted from waste bone powder, citric acid monohydrate-betaine and lactic acid-betaine eutectic solvent, and in addition, purple corn anthocyanin is used as a pH response agent, and citric acid monohydrate-betaine eutectic solvent is used as a crosslinking agent and a bacteriostatic agent. In the preparation process, collagen and hydroxyapatite are mixed with an aqueous solution of eutectic solvent and heated, and after the system is reduced to room temperature, the anthocyanin aqueous solution is added, mixed, and ultrasonic defoaming is performed, then the film forming liquid is poured into a clean mold, vacuum dried, and cooled to remove the film. The pH-responsive degradable composite film prepared based on the above method has good properties, not only has the characteristics that the overall color changes with the microenvironment pH, but also has good mechanical strength, bacteriostasis and degradability, and has wide application potential in many fields such as food preservation.

The invention discloses purple corn composite tea and a preparation method thereof. The purple corn flour is prepared from the following raw materials in parts by weight: 50-80 parts of purple corn, 15-35 parts of broom corn millet peel, 1-5 parts of a sweetening agent and 0.1-0.5 part of vitamin C. The purple corn is treated in a repeated freezing and thawing mode, the prepared tea drink is high in anthocyanin release speed and high in anthocyanin release proportion, the broom corn millet peel is added, anthocyanin release is better promoted, and meanwhile the content of active iron and active selenium in the tea drink is increased.

The utility model discloses purple corn noodle making equipment which comprises a base, the top of the base is fixedly connected with a feeding vessel, the bottom of the feeding vessel is provided with a plurality of discharging ports, the top of the base is provided with a noodle making mechanism, the interior of the base is transversely and movably connected with a first fixing frame, and the top of the first fixing frame is movably connected with a fixing plate. A plurality of dredging needles are fixedly connected to the top of the fixing plate, a first boss is arranged on one side of the base, a first driving motor is fixedly connected to one side of the first boss, and the power output end of the first driving motor penetrates through the first boss and is fixedly connected with a driving gear. The fixing plate is located below the discharging port, under the action of the first air cylinder, the fixing plate ascends to dredge the discharging port, and the problems that most of existing purple corn noodle making equipment does not have the dredging function, discharging holes are prone to being blocked, and the noodle making effect can be affected to a certain degree are solved.

The invention discloses a method for extracting purple corn anthocyanin, which comprises the following steps: by taking purple corn kernels as a raw material, crushing the dried purple corn kernels into fine powder, then pretreating the crushed purple corn fine powder, then adding the pretreated purple corn cob powder into an extracting solution, and uniformly stirring to obtain the purple corn anthocyanin. The method comprises the following steps: carrying out ultrasonic-assisted extraction on the raw materials, carrying out centrifugation and purification treatment on the obtained extracting solution to obtain an eluent, carrying out vacuum concentration on the obtained eluent to obtain a concentrated solution, and finally, carrying out freeze drying on the concentrated solution to obtain the anthocyanin. By adopting the extraction method disclosed by the invention, the problems of low anthocyanin extraction rate, large organic reagent consumption and long extraction time in a traditional extraction method are effectively solved, high-valued development and utilization of purple corn can be realized, the anthocyanin extraction rate and purity are also improved, the extraction method has the advantage of high extraction efficiency, the extraction cost is greatly reduced, and the method is suitable for industrial production. Popularization and application are facilitated.

The utility model belongs to the industrial field, and particularly discloses an anthocyanin purple corn tea raw material mixing and metering tank, the upper end of a tank body is provided with a feeding port, the top end of the tank body is provided with a controller and a motor, the motor is connected with the tank body through a supporting frame, the bottom end of the tank body is provided with a weight measuring device, and the weight measuring device is connected with the controller. The bottom end of the weight measuring device is connected with the platform, four supporting legs are evenly arranged at the bottom end of the platform, a discharging port is formed in the lower end of the tank body and penetrates through the tank body, an electromagnetic lifting valve is arranged at the position, located at the discharging port, of the inner wall of the tank body, and the motor is connected with a rotating shaft through a speed reducer. Three stirring rods are evenly arranged on the rotating shaft, the bottom end of the rotating shaft is connected with the tank body through a bearing, materials can be stirred through the stirring rods, then weighing and quantifying are conducted through the weight measuring device at the bottom, and the function of mixing, stirring and metering of anthocyanin purple corn tea raw materials is achieved.

The invention provides an anthocyanin extraction method and application thereof.The method comprises the steps that purple corn processing by-product spike stalks serve as raw materials, a deep eutectic solvent prepared from choline chloride and D-lactic acid according to the molar ratio of 1: 2 serves as the basis, and extraction is conducted through ultrasonic assistance; the optimal extraction process parameters are as follows: the DES water content is 29%, the material-liquid ratio is 1: 7, the ultrasonic temperature is 50 DEG C, and the ultrasonic time is 39 min. The method is high in extraction efficiency, and the anthocyanin extraction amount can reach 56.23 mg / g DW and is 1.33 times that of a traditional 70% ethanol extraction method. Meanwhile, the DES extraction system can significantly enhance the thermal stability and storage stability of the anthocyanin, the thermal degradation half-life period at 80 DEG C is prolonged by 51.8%, and the retention rate is increased to 38.57% after the anthocyanin is stored in a dark place for 15 days. The method is green, environment-friendly, efficient and stable, and a new way is provided for comprehensive utilization of purple corn resources and green preparation of high-value natural anthocyanin.

The invention provides a whole-plant purple corn anthocyanin substitutional tea formula and a preparation process thereof, and relates to the technical field of substitutional tea processing, and the whole-plant purple corn anthocyanin substitutional tea formula is prepared from the following raw materials: a whole-plant purple corn raw material, purple corn stigma, medicinal and edible auxiliary materials, a natural sweetening agent, an anthocyanin protective agent, citric acid and beta-cyclodextrin. The beverage has strong antioxidant ability, can effectively remove free radicals in the body, slow down the cell aging process and prevent various chronic diseases, and meanwhile, anthocyanin also has the effects of resisting inflammation and protecting eyesight, can relieve eye fatigue and prevent eye diseases, and meets the requirements of consumers on health and health preservation; the anthocyanin protective agent and the beta-cyclodextrin are added, so that the substitute tea can still keep higher anthocyanin content after being stored for a long time, and the nutritional value and the efficacy of the product are maintained.

The invention relates to the technical field of natural product extraction, and discloses a preparation method of purple corn anthocyanin with the efficacy of inhibiting hela cells and Caco-2 cells of colon cancer, and the preparation method comprises the following steps: crushing purple corn cobs to prepare an acid solution; the method comprises the following steps: weighing purple corn cob powder, adding an acid solution, mixing, extracting, and drying an extracting solution to obtain a purple corn anthocyanin crude extract; and carrying out graded alcohol precipitation by using 20%, 40%, 60%, 80% and 100% ethanol solutions, and collecting 20%-40% and 80%-100% ethanol precipitation parts to obtain a target separated extract. According to the purple corn anthocyanin prepared by the preparation method disclosed by the invention, polar components with the highest activity are directionally enriched through an ethanol fractional precipitation process, and the components have a remarkable inhibition effect on the activity of in-vitro cells hela cells and Caco-2 cells of colon cancer and have a remarkable effect of inhibiting the colon cancer.

The invention discloses a whole-plant purple corn anthocyanidin wine formula and a preparation technology thereof, and belongs to the technical field of purple corn anthocyanidin wines.The preparation technology comprises the following steps that S1, raw materials for preparing the whole-plant purple corn anthocyanidin wine are selected according to the requirements of maturity, color, cleanliness and drying degree; s2, respectively or mixing the harvested purple corn husks, cores and stigmas for cleaning. According to the method, the whole plant parts such as bract, core and stigma of the purple corn are used as raw materials for extracting the anthocyanin, so that the source of the anthocyanin is widened, efficient utilization of purple corn byproducts is realized, the resource utilization rate is increased, the production cost is reduced, and meanwhile, the whole purple corn plant is rich in natural anthocyanin; the health-care wine has the advantages that the health-care wine has good antioxidant, anti-inflammatory, eye-protecting, blood fat-regulating and other physiological activities, the anthocyanin content in the finished wine is high through scientific proportioning and optimized process, the product is endowed with remarkable functional health-care value, and the requirements of consumers on healthy drinks are met.

The invention discloses a preparation method and application of purple corn anthocyanin liposome, and the method comprises the following steps: step 1, weighing soybean lecithin and cholesterol, and dissolving in dichloromethane to obtain a mixed solution; 2, carrying out reduced pressure rotary evaporation on the mixed solution to form a lipid film; step 3, adding a purple corn anthocyanin solution for hydration; and step 4, placing the hydrated suspension in an ice bath for ultrasonic treatment, and filtering to obtain the purple corn anthocyanin liposome. By optimizing the raw material proportion and process parameters, the liposome with the encapsulation efficiency being greater than or equal to 92% and the particle size being 130-150 nm is prepared, and the problem that the purple corn anthocyanin is poor in stability is solved. The bacteriostasis rates of the lipidosome to staphylococcus aureus and escherichia coli respectively reach 97% and 96% or above, the intestinal flora balance can be adjusted, beneficial bacteria proliferation is promoted, the biological safety is high, and the lipidosome is suitable for development of antibacterial drugs and intestinal health products.

The invention provides a whole-plant purple corn anthocyanin beverage formula and a preparation process thereof, and relates to the technical field of beverage processing, and the whole-plant purple corn anthocyanin beverage formula is prepared from the following raw materials: a whole-plant purple corn extract, a sweetening agent, a stabilizer, an acidity regulator, an antioxidant, functional auxiliary materials and purified water; the purple corn is rich in anthocyanin, has various physiological activities of resisting oxidation, resisting inflammation, protecting eyesight and the like, can meet the requirements of consumers on healthy drinks, and improves the nutritional value of the drinks; moreover, through a scientific and strict preparation process, the beverage is ensured not to have precipitation and layering phenomena in the storage and sales processes, and good appearance and taste are kept.

The invention belongs to the field of traditional Chinese medicines, and discloses a traditional Chinese medicine composition for treating qi deficiency and blood stasis type idiopathic pulmonary fibrosis as well as a preparation method and application thereof. The traditional Chinese medicine composition disclosed by the invention is prepared from astragalus membranaceus, angelica sinensis, raw oyster, honey-fried aster, scutellaria baicalensis and the like, has the effects of tonifying qi, removing blood stasis, eliminating stagnation, clearing away lung-heat, relieving cough and asthma, and has a certain treatment effect on lung compliance reduction, gas exchange disorder and small airway resistance increase caused by lung tissue fibrosis. The long-term use is safe and effective.

This invention discloses a highly efficient purification method for anthocyanins from purple corn leaves and its application in the preparation of effervescent tablets, belonging to the field of natural product extraction and purification technology. The method involves filtering and concentrating the crude anthocyanin extract obtained from soaking to remove impurities, followed by fractional purification using simulated moving bed chromatography with six functional zones. The purified anthocyanins are then concentrated and dried to obtain the final product. This process can be continuously operated, significantly improving the purity and yield of anthocyanins, providing reliable technical support for the industrial-scale, high-value utilization of anthocyanins from purple corn leaves.

The invention discloses a whole-plant purple corn anthocyanidin rice flour and flour food formula and a preparation technology, and belongs to the technical field of purple corn anthocyanidin, and the preparation technology comprises the following steps: S1, preparing raw materials for preparing whole-plant purple corn anthocyanidin pastry food; s2, extracting anthocyanin in the purple corn by using a water extraction method and an organic solvent extraction method; s3, mixing the purple corn anthocyanin extract, purple corn whole plant powder, wheat flour, salt and the like in proportion, and adding auxiliary materials; and S4, adding a proper amount of water, and kneading into smooth dough. According to the invention, the whole plant resource of purple corn, especially purple corn bran rich in anthocyanin, is fully utilized, the anthocyanin extract is obtained by a scientific extraction process, and the anthocyanin extract is compounded with the whole plant powder of purple corn, so that the anthocyanin is a powerful natural antioxidant; the pastry has various physiological activities of scavenging free radicals, resisting aging, protecting eyesight, improving cardiovascular health and the like, and the nutritional value and the health-care function of the pastry are remarkably improved.

The application discloses an enzymatic low-GI fresh wet purple corn noodle with anthocyanin aglycone targeted enrichment and a preparation method thereof. The fresh wet purple corn noodle is prepared from the following raw materials in parts by weight: 70-85 parts of purple corn ultrafine powder, 8-15 parts of wheat gluten, 4-7 parts of konjac glucomannan, 0.1-0.3 parts of sodium ascorbate, 0.05-0.15 parts of compound phosphate (food grade), 0.2-0.5 parts of natural preservative, 0.08-0.25 parts of compound enzyme preparation and 35-45 parts of purified water. The purple corn kernels are subjected to ultrafine pulverization under low-temperature and light-shielding conditions, and directional conversion of anthocyanin glycoside to aglycone is realized through step-by-step enzymolysis, and the proportion of resistant starch is increased to reduce the GI value by regulating the starch structure. Through conditioning, vacuum calendering, low-temperature molding, shaping and preservation operations, the texture stability and anthocyanin retention rate are improved, and the fresh wet noodle quality and preservation are considered.

The invention discloses a purple corn whole plant anthocyanin extraction and purification method and application, and belongs to the technical field of anthocyanin extraction.The method comprises the steps that smashed purple corn whole plants are mixed with acid ethyl alcohol, heating reflux extraction is conducted, centrifugation is conducted, supernate is taken, concentration, rough filtration, fine filtration and freeze-drying are conducted, and an anthocyanin crude product is obtained; dissolving the crude product, adsorbing with macroporous resin XDA-6, eluting with ethanol, collecting eluent, concentrating and drying to obtain a refined anthocyanin product; compared with a traditional aqueous solution extraction method and an ethanol solution extraction method, the extraction and purification method provided by the invention has the advantages that the content of the anthocyanin in the whole purple corn plant is high, and the content of the anthocyanin in a crude product reaches 97 mg / 100g. In addition, the scavenging rate of a 5mu g / mL purple corn whole plant anthocyanin solution on DPPH free radicals is as high as 96.31%.

The present invention discloses formulations of Cyanidin-3-Glucoside (C3G) from purple corn cob and method of extracting C3G from purple corn. The invention describes phyto-liposomal formulations of C3G which enhance the bioavailability and efficacy of C3G along with enhanced stability. The method of extraction of C3G described in the present invention uses minimal solvents, and milder processing rendering the process eco-friendly, energy efficient and cost effective. The C3G formulations described herein have various therapeutic and nutritional applications.

The invention discloses a method for improving stability of purple corn anthocyanin, which comprises the following steps: mixing malic acid serving as a modifier with purple corn anthocyanin, dissolving in an ethanol aqueous solution, and modifying the purple corn anthocyanin by using pyridine as a catalyst to obtain acylated purple corn anthocyanin; according to the acylated purple corn anthocyanidin, the stability of the purple corn anthocyanidin is improved, the deterioration speed of the purple corn anthocyanidin in the storage process is slowed down, meanwhile, the original pH developing performance and antioxidant activity of the anthocyanidin are reserved, the adopted experiment steps are simple, the cost is low, and more possibilities are brought to application of the purple corn anthocyanidin.

The present invention provides a double-layer multifunctional liner for smart packaging and a preparation method thereof, belonging to the field of smart packaging technology. By multi-stage utilization of purple corn cob raw materials, an environmentally friendly liner with double-layer and multifunctional characteristics is prepared. The liner can extend the shelf life of high-protein foods and visualize the freshness and storage time of foods, thereby achieving the purpose of enhancing the commercial value of high-protein foods and the consumer consumption experience. The upper layer of the double-layer multifunctional liner of the present invention is an antibacterial / freshness monitoring layer, which presents the freshness of high-protein foods through color changes. The lower layer is a time-temperature indicator layer, which presents the storage time through color changes. The upper layer contains plant essential oils for inhibiting the growth and reproduction of microorganisms to achieve a preservation effect. At the same time, anthocyanins and Maillard reaction products provide a certain antioxidant effect to help improve the preservation effect.

The invention belongs to the technical field of biological extraction, and particularly relates to a method for extracting, separating and purifying peonidin-3-O glucoside. The method comprises the following steps: pre-soaking purple corn flour in a methanol solution, then adding into an extraction column, loading an obtained crude extracting solution on an XAD-2 macroporous resin column, and eluting by using an ethanol solution; adjusting the volume fraction of ethanol in the eluent, loading on a spherical C18 silica gel column, carrying out gradient elution by using an ethanol solution as a phase B and a phase A as water, separating by using a rapid purification system to obtain a rapid purification system chromatogram, collecting a main elution peak, and carrying out reduced pressure rotary evaporation to obtain a concentrated product; and further purifying by using the preparative liquid phase to obtain the peonidin-3-O glucoside. The peonidin-3-O glucoside obtained by the method is in a purple fluffy lamellar crystal shape, the purity can reach 97% or above, and the peonidin-3-O glucoside has the advantages of short time consumption, low toxicity and the like, and is suitable for popularization and application.