589 results about "Green teas" patented technology

The invention belongs to the technical field of biological fermentation and cosmetics, and particularly relates to a cortex magnoliae officinalis fermented product with oil-controlling and dandruff-removing effects as well as preparation and application of the cortex magnoliae officinalis fermented product. The preparation method comprises the following steps: performing ethanol ultrasonic extraction on officinal magnolia bark powder to obtain an officinal magnolia bark extract; adding mangnolia officinalis, honeysuckle, green tea and pericarpium citri reticulatae powder into pure water, performing enzymolysis treatment by adopting cellulase and pectinase, then adding a carbon source, prebiotics and inorganic salt, performing high-temperature sterilization, performing cooling, then adding a mangnolia officinalis extract, and performing uniform mixing so as to obtain a fermentation culture medium; the method comprises the following steps: inoculating an aspergillus seed solution and a saccharomyces cerevisiae seed solution into a fermentation culture medium for first-step fermentation, heating and inactivating, cooling, inoculating fruit wine yeast for second-step fermentation, and sterilizing at high temperature, cooling and filtering after fermentation to obtain filtrate which is the cortex magnoliae officinalis fermented product with the effects of controlling oil and removing dandruff. According to the preparation method, enzymolysis and fermentation technologies are combined, and the honeysuckle, the green tea and the pericarpium citri reticulatae are fermented together, so that the antibacterial, anti-dandruff and oil-control effects of the mangnolia officinalis can be synergistically improved.

The invention discloses a multi-mode Longjing tea leaf intelligent grading method integrating five-dimensional evaluation scales. The method comprises the following steps: collecting Longjing tea leaf samples; the method comprises the following steps: collecting an appearance picture data set, a soup color picture data set, a leaf bottom picture data set, an aroma data set and a taste data set of Longjing tea leaf samples, performing preprocessing, and dividing the data sets into a training set, a test set and a verification set; constructing a multi-modal Longjing tea leaf grading model, and training, testing and verifying the multi-modal Longjing tea leaf grading model through the training set, the test set and the verification set to obtain an optimal multi-modal Longjing tea leaf grading model; and grading the Longjing tea leaves through the optimal multi-mode Longjing tea leaf grading model. According to the method, the intelligent grading model is constructed by using the digital feature vectors through a multi-modal fusion and contrast learning method, and finally, a visual green tea quality evaluation system is formed, so that the aims of improving the evaluation consistency and reducing human subjective errors are achieved.

The invention provides a fat-reducing composition based on an agaricus bisporus extract as well as a preparation method and application of the fat-reducing composition, and belongs to the technical field of nutrition and health care. The fat-reducing composition comprises the following raw materials in parts by weight: 10-30 parts of an agaricus bisporus extract, 5-15 parts of a green tea extract, 5-15 parts of bitter gourd peptide, 3-10 parts of seaweed meal and 10-30 parts of resistant dextrin. The agaricus bisporus extract disclosed by the invention can regulate intestinal flora and promote fat metabolism; tea polyphenol in the green tea extract can inhibit fat synthesis and promote fat oxidation; momordica charantia peptide has an obvious hypoglycemic effect; the seaweed meal (containing fucoxanthin) has the effects of burning fat cells and eliminating fat accumulation; the resistant dextrin is used as dietary fiber, so that satiety is increased, and caloric intake is reduced. The raw materials cooperate with each other, so that the composition has better fat-reducing and weight-reducing effects, and the total cholesterol and triglyceride levels are reduced.

The invention provides a composition and application thereof in preparation of a fat-reducing product. The composition comprises ginger and green tea composite micro-capsule powder, raspberry ketone, mango concentrated powder, citrus fruit powder and seaweed powder. The composition comprises the following components in parts by weight: 15-22 parts of fresh ginger and green tea composite microcapsule powder, 4-8 parts of mango concentrated powder, 1-5 parts of raspberry ketone, 1-5 parts of citrus fruit powder and 1-5 parts of seaweed powder. The method can solve the problem of large side effects of fat-reducing products in the prior art, and is suitable for the field of functional foods.

The invention relates to the field of skincare products, and particularly discloses skincare gel loaded with ganoderma lucidum exosome and a preparation method of the skincare gel. The skin care gel loaded with the lucid ganoderma exosome is prepared from the following raw materials in parts by weight: 20 to 40 parts of hydrogel matrix, 2 to 4 parts of lucid ganoderma exosome nanoparticles, 2 to 6 parts of niobium carbide nanosheets, 1 to 3 parts of nicotinamide, 0.1 to 2 parts of phenethyl resorcinol and 0.1 to 3 parts of green tea extract, the Mailing exosome nanoparticles are of a core-shell structure, a core layer comprises Mailing exosome and papain in a mass ratio of 1: (0.1-0.2), and a shell layer comprises a polylactic acid-glycolic acid copolymer and a penetration enhancer in a mass ratio of 1: (0.1-0.3). The skin-care gel provided by the invention has remarkable whitening, moisturizing and skin brightening effects.

The invention relates to the technical field of heavy metal pollution treatment, and particularly discloses a biochar material and method for adsorbing heavy metals in wormcast. The biochar material for adsorbing the heavy metals in the wormcast adopts waste green tea residues as a raw material, and after being soaked in a phosphoric acid solution with the mass concentration of 38-42%, the biochar material is subjected to heat treatment at the temperature of 540-560 DEG C to obtain P-BC powder. The P-BC powder is soaked in a metal salt solution with the total metal ion concentration being 0.8-1.2 mol / L, and under the action of a precipitator, the LDH-coated P-BC material is obtained. The LDH-coated P-BC material is mixed with a ferric chloride hexahydrate solution and a NaBH4 aqueous solution for reaction to obtain the biochar material for adsorbing the heavy metals in the wormcast, so that the fixing and stabilizing effects of the biochar material on the heavy metals in the wormcast are improved.

The invention provides an extraction process and application of tea leaves, and particularly relates to the technical field of cosmetics. The extraction process of the tea leaves comprises the following steps: extracting raw dark green tea leaves with a color fixative, decolorizing with a clarifying agent, activated carbon and a clarifying agent in sequence, filtering, and finely filtering to obtain the tea leaf extract. The extraction process provided by the invention solves the problems of easy oxidation of active ingredients, many impurities, poor storage stability and the like in the traditional tea extraction process, can efficiently retain the active ingredients such as tea polyphenol and the like, and the extract is high in purity and good in stability and can be used in anti-aging and anti-inflammatory cosmetics. The tea leaf extract and the artemia extract have a remarkable synergistic effect in the anti-oxidation and anti-inflammatory aspects, can be used in anti-aging and anti-inflammatory cosmetics, and have a good application prospect.

The invention provides microcapsule seasoning powder containing active plant components for cats and a preparation method of the microcapsule seasoning powder, the microcapsule seasoning powder comprises a double-layer embedding system, and the microcapsule seasoning powder comprises the following raw material components in percentage by weight: 10-14 wt% of a composite core material, 32-36 wt% of a multifunctional food calling base material, 35-39 wt% of the double-layer embedding system and 14-16 wt% of functional auxiliary materials; the composite core material is prepared by compounding a mint extract, a green tea extract, a chicory extract, a mulberry leaf extract and a hawthorn extract according to the mass ratio of (1.8-4.5): (1.2-3): (0.8-1.5): (0.5-1.2): (1-2). The cat food has a dual-stage targeting effect of low release in the stomach and high release in the intestinal tract, has high palatability, has the effects of promoting the health of the intestinal tract, improving metabolism and resisting aging synergistically, is long-acting and stable, and can be suitable for various types of functional foods for cats.

The invention relates to the technical field of functional fibers, and particularly discloses a chinlon BI fiber with an anti-allergy function prepared by using a molecular nest technology, which is prepared from the following raw materials in parts by weight: 100-300 parts of chinlon chips, 15-30 parts of molecular nests containing plant active ingredients and 1-7 parts of a dispersing agent, the molecular nest containing the plant active ingredients is obtained by loading a calendula extract, a liquorice extract and a green tea extract on sulfonated mesoporous silica, and the sulfonated mesoporous silica can stably adsorb the plant active ingredients, so that carbonization inactivation caused by high temperature of spinning due to direct addition of natural active ingredients is avoided; therefore, the chinlon BI fiber disclosed by the invention has an anti-allergy function, and is remarkable in antibacterial and antioxidant activity and wide in market application prospect.

The invention belongs to the technical field of cosmetics, and particularly relates to a silk fibroin aggregate-based dispersed organic active substance as well as a preparation method and application thereof. The preparation method of the silk fibroin aggregate-based dispersed organic active substance comprises the following steps: (1) dissolving an organic active substance in a first solvent to obtain a first solution; dissolving the silk fibroin aggregate in a second solvent to obtain a second solution; (2) slowly adding the second solution into the first solution, mixing and homogenizing to obtain a silk fibroin aggregate-based dispersed organic active substance; wherein the silk fibroin aggregate is prepared by mixing a silk fibroin aqueous solution and alcohol. The silk fibroin aggregate-based dispersed organic active substance prepared by the preparation method can improve the bioavailability of the organic active substance (such as vitamin C, hyaluronic acid, coenzyme Q10, nicotinamide, arbutin, kojic acid, licorice extract, centella extract, chamomile extract or green tea extract) in cosmetics.

The invention discloses a tea group fine manipulation degree identification method based on MobileNet V3, and the method comprises the steps: obtaining a tea group image, obtaining a tea fine manipulation data set through data enhancement, and dividing the tea fine manipulation data set into a training set, a verification set and a test set; preprocessing the group image to segment brown spots and red edging features in a fine manipulation stage; the method comprises the following steps of: improving a MobileNet V3-large model: adding an adaptive residual branch in a Bcheck module, and using a GELU activation function and an improved CA attention mechanism; the improved MobileNet V3-large model is trained, and a final improved MobileNet V3-large model is obtained through the training of the improved MobileNet V3-large model and the training of the improved MobileNet V3-large model; and predicting and outputting identification results of the color, the form, the brown spots and the red edges of the tea leaves by utilizing the final improved MobileNet V3-large model. According to the invention, intelligent judgment of the tieguanyin green-making degree is realized.

The present invention relates to the technical field of active ingredient extraction, and specifically discloses a yellow green tea polysaccharide and its extraction method and application, comprising the following steps: S1. defatting and decolorizing yellow green tea powder and drying for standby use; S2. mixing tea powder with an extracting solution in an ultrasonic device to obtain an extraction mixture, and then adding a complex enzyme to the extraction mixture for extraction to obtain a first mixture; S3. filtering the first mixture, taking the supernatant, and concentrating it by rotary evaporation to obtain a second mixture; S4. precipitating the second mixture with alcohol, centrifuging, and re-dissolving the precipitate to obtain a third mixture; S5. adding sevage reagent to the third mixture to obtain a deproteinized mixture, and then rotary evaporating to obtain a concentrated solution; S6, dialyzing and drying the concentrated solution to obtain yellow green tea polysaccharide. In the present invention, the enzymatic extraction step and the ultrasonic extraction step are carried out simultaneously. By adjusting the relevant processing parameters, the two extraction methods can be coordinated with each other, so that the extraction efficiency of the yellow green tea polysaccharide is greatly improved.

The invention provides a multi-modal fusion evaluation method and system for green tea grading. The method is applied to the technical field of artificial intelligence deep learning, and comprises the steps that to-be-detected hyperspectral data of to-be-detected green tea are collected through a constructed collection system, and the to-be-detected hyperspectral data comprise to-be-detected spatial data and to-be-detected spectral data; performing feature extraction on the to-be-detected spatial data by adopting a residual network model to obtain an image feature vector; inputting the spectral data to be detected into the Transform model to obtain a spectral feature vector; performing interaction association on the image feature vector and the corresponding spectral feature vector by adopting a cross attention mechanism to generate a fusion feature vector; and inputting the fusion feature vector into a trained grading model to obtain a grading result, and training the grading model by taking the green tea grade as a label. The feature representation is automatically learned from the original image of the green tea to classify the grade or evaluate the quality.

The invention provides a method for accelerating aging of Liupu tea, and relates to the technical field of tea processing. According to the method, the golden flower Liupu tea is inoculated twice in the whole aging process, and the method comprises the following steps that sun-dried raw tea serves as tea for testing, primary inoculation is conducted, the inoculation amount of the golden flower Liupu tea is 1% of the mass of the tea for testing, pile fermentation is conducted, and inoculated and fermented Liupu tea is obtained; the inoculated and fermented Liupao tea is subjected to high-pressure steaming and then inoculated for the second time, the inoculation amount of the golden flower Liupao tea is 1% of the mass of the inoculated and fermented Liupao tea, and aging is conducted after inoculation to obtain aged Liupao tea; the aging temperature ranges from 26 DEG C to 28 DEG C, and the aging humidity ranges from 80% to 85%. According to the method, the steps are simplified, the aging time is shortened, and meanwhile the nutritional quality and the sensory quality of the Liupao tea can be improved.

The invention discloses a green tea astringent grade prediction method, and relates to the field of green tea astringent prediction, and the method comprises the steps: employing a green tea astringent sample set to carry out the initial training of a random forest model, and obtaining a green tea astringent random forest prediction model; determining an SHAP value of each model input feature by adopting an SHAP analysis method, and screening the model input features according to the SHAP values to obtain high-contribution model input features; simplifying the green tea astringent sample set according to the high-contribution model input features, and performing secondary training on the random forest model to obtain an optimized green tea astringent random forest prediction model; wherein the input characteristics of the model are forty-two secondary metabolism components of the green tea, and the input characteristics of the high-contribution model are fifteen high-contribution secondary metabolism components of the green tea. According to the method, efficient and accurate prediction of the astringent taste grade of the green tea can be realized, and the credibility is relatively high.

The invention discloses a directional preparation method of a high-stability dark brown pigment and an application of the high-stability dark brown pigment in an acid beverage, and relates to the technical field of food additives. The preparation method comprises the following steps: S1, crushing raw dark green tea raw materials, mixing the crushed raw dark green tea raw materials with water, adjusting the pH value to 9-12, carrying out heating extraction, and collecting a supernatant; s2, repeatedly concentrating the supernate to obtain a concentrated solution; s3, adding an ethanol solution into the concentrated solution, standing, and collecting a precipitate; and S4, volatilizing the ethanol in the precipitate, re-dissolving, taking the supernatant, and drying to obtain the product. By optimizing the extraction and purification process, the dark brown pigment with high extraction rate and high color value is successfully prepared, the dark brown pigment shows excellent stability in a wide pH range and under the conditions of high temperature and high pressure, and the pigment obtained by the invention can be used as a natural brown coloring agent with excellent performance, is widely applied to the field of acid beverages, and has wide application prospects. Meanwhile, an effective way is provided for high-value utilization of dark tea resources.

The invention relates to a tea tree variety manufacturability discrimination method based on characteristic lipids of fresh tea leaves. The method comprises the following steps: collecting a sample, screening a lipid marker combination for discriminating the manufacturability of the tea tree variety based on the sample, and establishing a multi-stage classification model based on the lipid marker combination; and carrying out tea tree variety manufacturability discrimination by using the trained model. According to the invention, a lipid marker combination is determined as a discrimination index for identifying the tea tree variety processability, and a new thought and technical means are provided for accurate identification of the tea tree variety processability (suitable for green tea preparation, suitable for black tea preparation, suitable for white tea preparation and suitable for oolong tea preparation); the multi-stage classification model can effectively distinguish tea tree varieties suitable for green tea, black tea, white tea and oolong tea, the area AUC under an ROC curve is close to or equal to 1.0, and experimental operation and data analysis are simple, convenient and high in accuracy and reliability; tea tree resource diversity cognition is deepened, a new tool is provided for tea variety traceability and quality control and evaluation, and accurate tea processing can be conveniently guided.

Provided are: a kit for mindful eating using powdered green tea; and a method for executing mindful eating. The present invention comprises: a powdered green tea product 11 of an instant beverage reconstituted into a liquid; a processor for executing a machine-readable instruction; and a voice output unit 21a for outputting voice according to an instruction of the processor, wherein the processor is made to read voice guidance, which includes an instruction related to adjustment of the powdered green tea product 11 and an instruction related to meditation, from storage units 23 and 31 storing the voice guidance, and to output the read voice guidance by the voice output unit 21a.

A method for treating a gastrointestinal condition includes preparing an aqueous extract of bioactive compound by adding dried green tea material to hot water and filtering the aqueous extract; adding a solution of an iron-containing compound to the filtered aqueous extract to form a complex or chelate of the bioactive compounds with iron; and drying the solution at a temperature between 80 to 150 degrees Fahrenheit to obtain a fine granular or powdered state.

This invention discloses the application of green tea acidic polysaccharide GTPS in improving metabolic syndrome, aiming to provide a new use for green tea acidic polysaccharide GTPS. The extraction process involves first grinding green tea into powder, boiling, filtering, deproteinizing using the Seval method, concentrating, adding ethanol, allowing it to stand overnight, centrifuging to collect the precipitate, dissolving it, removing the ethanol, and freeze-drying to obtain GTPSs. The GTPSs are then passed through a DEAE-agarose FF column, eluted with distilled water and 0.2, 0.5, and 1.0 mol / L sodium chloride, and the fractions are collected. The fraction eluted with 0.2 mol / L sodium chloride is dialyzed to desalt, yielding green tea polysaccharide GTPS. Applying this to the improvement of metabolic syndrome provides a solid foundation for revealing the key active components in green tea that promote metabolism and paves the way for the future utilization of tea polysaccharides in the pharmaceutical and food industries, offering a promising solution for the integration of tea resources and the application of natural products.

The invention relates to the technical field of tea fruit green tea processing, in particular to a tea fruit green tea processing method which comprises the following steps: S1, picking immature tea fruits from April to July, removing unqualified fruits such as damaged fruits and fruits damaged by worms, and then cleaning; s2, spreading the tea fruits, and performing indoor withering until the weight loss ratio of the tea fruits is 20-30%; step S3, carrying out fixation on the withered tea fruits, namely carrying out primary fixation (steaming) on the tea fruits, and then carrying out secondary fixation (baking) while the tea fruits are hot, so that the tea fruits are uniform in fixation, dark green in appearance and soft in hand pinching. According to the invention, a set of processing technical route of green tea adapting to the physical characteristics of immature tea fruits is constructed around the tea tree by-product which is neglected for a long time, high-value utilization of tea fruit resources and development of low-caffeine tea drinks are realized under the condition of not increasing equipment investment, and the method has remarkable practical value and popularization and application prospects.

The invention discloses a gamma aminobutyric acid green tea processing method which comprises the following steps: spreading fresh leaves, namely immediately spreading the fresh leaves after the fresh leaves enter a factory; performing anaerobic fermentation; performing fixation: performing fixation by using a roller fixation machine; spreading for cooling and moisture regaining: spreading the enzyme-deactivated leaves in time, and stacking for moisture regaining after spreading for cooling; performing temperature-controlled rolling; deblocking and screening: deblocking in time after rolling leaves are discharged; performing circular rolling frying (second-stage fixation), namely performing circular rolling frying by using a roller fixation machine; spreading and cooling: spreading and cooling the second-stage tea leaves in time; performing circular roll-frying (aroma enhancement), namely performing circular roll-frying and aroma enhancement by using a roller fixation machine; finishing is conducted; the invention innovatively provides a new three-stage drying technology of circulating rolling-frying (second-stage green leaf), spreading-cooling and circulating rolling-frying (aroma extraction), the whole drying process is continuously and circularly rolling-frying through a roller fixation machine, and the chlorophyll retention amount of the gamma aminobutyric acid green tea processed by adopting a new temperature control rolling technology is increased by 30% or above compared with normal-temperature rolling, so that the chlorophyll retention amount of the gamma aminobutyric acid green tea in summer and autumn is increased by 30% or above. The dry tea is emerald green in color, tight and fine in appearance, clear and bright in soup color, fragrant and lasting in fragrance and fresh and cool in taste.

The utility model discloses a drying device for green tea processing, which relates to the technical field of tea processing and comprises a rack, a drying cylinder horizontally arranged on the inner side of the rack, a feeding and discharging port arranged on the circumferential side of the drying cylinder, a sealing cover detachably connected to the feeding and discharging port, and an electric heating rod axially arranged on the inner side of the drying cylinder. Heat insulation columns are fixed to the two ends of the electric heating rod, penetrate through the drying cylinder and are fixed to the rack, the outer sides of the heat insulation columns are rotationally sleeved with shaft sleeves, the shaft sleeves are fixed to the drying cylinder, a driving assembly is installed on one side of the rack and drives the drying cylinder to rotate along the axis of the drying cylinder, and a plurality of dispersing columns are distributed on the circumferential inner wall of the drying cylinder at equal intervals. In the process that the dispersing columns rotate along with the drying cylinder, the tea leaves can be better dispersed, the tea leaf clustering phenomenon is effectively avoided, and the tea leaves can be evenly dried; and through cooperative arrangement of an extension spring, an electromagnet and a dispersion column, the dispersion column can be moved, and tea discharge cannot be blocked.

The invention discloses a Chinese patent medicine for preventing cold viruses and a preparation method thereof, and belongs to the technical field of medicines. The Chinese patent medicine is prepared by compatibility of a monarch drug tea polyphenol, a ministerial drug rhizoma zingiberis extract and an adjuvant drug licorice extract in parts by weight, the tea polyphenol is extracted from green tea, and the rhizoma zingiberis extract and the licorice extract are prepared by a biological extraction technology. The preparation method comprises the following steps: extracting tea polyphenol; extracting a dried ginger extract; extracting a licorice extract; the three extracts are mixed in proportion and prepared into dosage forms such as tablets, capsules or granules. Based on the monarch, minister, assistant and guide theory of traditional Chinese medicine, through the broad-spectrum antiviral effect of the tea polyphenol, the immunological enhancement effect of the rhizoma zingiberis extract and the harmonizing effect of the liquorice extract, the effect of synergistically preventing cold viruses is achieved, and the traditional Chinese medicine composition has the advantages of being simple in formula, remarkable in curative effect and high in safety and is suitable for prevention and early intervention of respiratory virus infection.

The utility model relates to the technical field of green tea gardens, and discloses a green tea garden fixed-distance lamp panel insect expelling device which comprises an installation plate. The positioning part is arranged on one side of the mounting plate; the adjusting part is arranged on one side of the positioning part; the positioning part comprises fixing seats fixedly connected to one side of the mounting plate, and the fixing seats are symmetrically arranged; and the fixed rail is fixedly connected to one side of the mounting plate. A sliding block is held by hand, a clamping ring is inserted into an adaptive opening, then the clamping ring extrudes a U-shaped clamping block, so that the U-shaped clamping block slides downwards along the track of the adaptive opening, after one side of the clamping ring abuts against a limiting block, the U-shaped clamping block bounces upwards under the action of a first spring, and therefore the U-shaped clamping block and the clamping ring are connected in a clamped mode; on the contrary, the fixing frame is pressed to drive the U-shaped clamping block to slide downwards, and therefore the effect of rapidly releasing the fixed connection between the sliding block and the first telescopic scale column is achieved.

The utility model discloses a green tea processing and baking device, and relates to the technical field of tea processing. The green tea processing and baking device comprises a heat preservation box, filter screen cylinders are rotationally installed on the two sides of the heat preservation box, a feeding hopper is rotationally installed on one sides of the filter screen cylinders, a fixing plate is fixedly installed on the outer wall of the feeding hopper, the fixing plate is fixedly installed on the outer wall of one side of the heat preservation box, and an air heater is fixedly installed on the outer wall of the top of the heat preservation box. According to the green tea processing and baking device, through the lifting structure, the heat preservation box and the filter screen cylinder can be driven to be obliquely arranged, tea leaves in the filter screen cylinder can be discharged, workers do not need to take the tea leaves manually, the situation that the workers are scalded by high temperature in the device is avoided, and through the rotating structure, the filter screen cylinder can be driven to rotate; the tea leaves in the filter screen cylinder can be turned over, the tea leaves are driven to be heated uniformly, the tea leaf quality is improved, and the filter screen cylinder rotates, so that disintegrating slag in the tea leaves can be screened out, and the tea leaves are prevented from affecting the taste.

The present invention relates to a method for producing a composition for promoting hair growth, and more particularly, to a raw material mixing step for mixing ground pine needles, ground pine cones, heartleaf houttuynia herbs, green tea leaves, cotyledons and an ethanol aqueous solution, and to a method for producing a composition for promoting hair growth. A fermentation step: inoculating the mixture cured in the curing step with lactic acid bacteria and fermenting; and mixing the additives, namely mixing the additives containing the hair root cell growth factors. A fermentation product produced by the fermentation step. The composition for promoting hair growth prepared by the method provides nutrition for hair, improves the health of scalp and hair roots, and shows an excellent hair growth effect.

The invention relates to the technical field of cosmetics, in particular to a tea-pine composition with a cell repairing effect and a preparation method and application thereof. The tea-pine composition with the cell repairing effect is prepared from a Longjing green tea extract and a pine plant extract, the mass ratio of the Longjing green tea extract to the pine plant extract is (2-5): (1.5-5). By compounding the Longjing green tea extract and the pine plant extract, the limitation of a single component can be reduced, multiple antioxidation can be realized, the antioxidation effect is more stable and more lasting, and cell repair is remarkably improved, so that the problems of inflammation and aging of skin are solved.

The invention relates to the field of antioxidant skin care products, and mainly relates to astaxanthin essence with a natural antioxidant effect and a preparation method of the astaxanthin essence. The invention relates to astaxanthin essence with a natural anti-oxidation effect. The astaxanthin essence is prepared from a water phase, a liquid phase and a liquid phase, wherein the water phase comprises 15-30% of a natural plant extracting solution, 3-8% of a humectant, 0.3-1.5% of a thickening agent and a preservative; an oil phase: 5%-14% of vegetable fat, 1%-4% of lecithin, 0.5%-2% of a rosemary extract and 0.3%-1.5% of a green tea extract; 0.8% to 4% of an astaxanthin liposome; arabic gum; a pH adjusting agent; water; the natural plant extracting solution comprises aloe juice and cucumber juice. By adopting natural raw materials and an innovative process, the stability and bioavailability of astaxanthin are improved, and the oxidation resistance of the essence is enhanced; meanwhile, it is ensured that the product is natural and mild, irritation to skin is reduced, and the requirements of consumers for high-quality natural skin care products are met.

The present application relates to a kind of green tea cell wall polysaccharide with hypoglycemic activity extraction and purification method and the green tea cell wall polysaccharide obtained, and five different tea polysaccharides are extracted by sequential extraction method using water, CDTA, saturated sodium carbonate and 1M NaOH and 4M NaOH solution, and the best hypoglycemic activity of green tea cell wall polysaccharide is screened by sugar metabolism enzyme activity inhibition, and further purified by gel column chromatography.Compared with prior art, the whole operation process of the present application has relatively mild reaction condition, can greatly retain the activity of green tea cell wall polysaccharide and reduce the loss of polysaccharide component to the maximum, has the advantages of high extraction rate, low energy consumption, small solvent consumption, simple operation and low economic cost, etc., lays a foundation for the study of the physicochemical properties and biological activity of green tea cell wall polysaccharide, and has important significance for the utilization of green tea cell wall polysaccharide in food, medical care and cosmetics and other fields.