173 results about "Tannin" patented technology

The utility model discloses an ice persimmon closed-loop heat pump dryer which comprises a drying chamber and a heat exchange system, and the drying chamber is provided with an air valve and a fan; the heat exchange system comprises a compressor, a condenser set, an electronic expansion valve and an evaporator which are sequentially connected and form a refrigerant circulation loop. The drying chamber has a high-temperature mode and a low-temperature mode, when the drying chamber is in the high-temperature mode, the air valve is closed, and when the drying chamber is in the low-temperature mode, the air valve is opened. Due to the indoor condenser and the outdoor condenser, the drying chamber can be flexibly switched between a high-temperature mode and a low-temperature mode, and the alternate operation mode not only can quickly and uniformly remove moisture in the persimmons, but also effectively reduces the tannin content in the persimmons. An air valve is arranged in the drying chamber and can change the flow direction of air in the drying chamber according to the working mode. Air flows through the heat regenerator twice and is heated / cooled, and the humidity is rapidly reduced in the process.

The invention discloses a method for improving the quality of a Tieguanyin tea extracting solution through segmented composite enzymolysis extraction, and belongs to the technical field of tea drink preparation. The method comprises the following steps: S1, performing low-temperature aroma extraction on Tieguanyin dry tea, and performing crushing so as to obtain crushed tea; s2, adding water and beta-glucosidase into the broken tea to carry out first-stage enzymolysis extraction, and separating to obtain tea aroma extract liquid and aroma-free tea residues; s3, water and composite hydrolase are added into the aroma-free tea residues for second-stage enzymolysis extraction, separation and filtration are performed, and a hydrolysis extraction solution is obtained; and S4, mixing the tea fragrance extract liquid with the hydrolysis extract liquid, cooling, centrifuging and filtering to obtain the Tieguanyin tea extract liquid. According to the method disclosed by the invention, the original flavor of the Tieguanyin is maintained, meanwhile, the fragrance and the mouth feel are remarkably improved, and the problems of fragrance loss and bitter taste caused by traditional high-temperature long-time extraction and cooked soup taste generated by tannase enzymolysis are avoided.

The invention relates to a salt-resistant biomass interface evaporation material as well as a preparation method and application thereof, and relates to the technical field of interface evaporation materials. The preparation method comprises the following steps: mixing sunflower fiber dispersion liquid, polyvinyl alcohol and carbon-containing molybdenum disulfide, then adding glutaraldehyde, then carrying out liquid nitrogen freezing and freeze drying, sequentially soaking with a tannic acid solution, a calcium chloride solution and a ferric chloride solution, and then carrying out freeze drying. Natural sunflower fibers are used as a main framework, cotton is used as a supporting material, carbon-containing MoS2 is prepared and crosslinked with polyvinyl alcohol, a hydrophilic functional layer is constructed on the surface of the material through tannic acid, and the tannic acid is coordinated and complexed with Ca and Fe < + >, so that a more stable hydrophilic complexed coating is formed on the surface of the material; the surface wettability and the water conveying capacity of the material are further improved, meanwhile, salt crystal deposition and precipitation in the seawater evaporation process are effectively inhibited, and the oxidation resistance and the seawater corrosion resistance of the material are improved.

The invention relates to an instant composition with a long-acting oral health-care function for dogs and cats as well as a preparation method and application of the instant composition, and belongs to the technical field of pet food and pet oral care. The composition comprises 20%-30% of whey protein powder, 10%-20% of hydrolyzed gelatin, 1%-3% of low-molecular-weight chitin saccharide gum, 1%-2% of modified cassava starch, 2%-5% of sodium alginate, 1%-3% of fructo-oligosaccharide, 0.03%-0.08% of lysozyme, 0.03%-0.08% of tea polyphenol, 0.05%-0.15% of zinc gluconate, 0.05%-0.1% of persimmon tannin, 3%-5% of tuna hydrolysate, 4%-6% of whole goat milk powder, 2%-4% of skim yoghurt powder and the balance water. The added active ingredients have long-acting slow-release and continuous effects in the formula, oral pathogenic bacteria can be effectively inhibited, dental plaque and dental calculus formation can be reduced, halitosis can be lastingly relieved, and the toothpaste has good market competitiveness.

The invention discloses a galiaceae-euphorbia tripsacus compound extract as well as a preparation method and vagina repair application thereof. The compound extract is prepared from galiaceae herbs and euphorbia tripsacus according to a scientific ratio through compound enzymolysis pretreatment, gradient ethanol solvent step-by-step extraction and double-resin series purification. According to the preparation method, the dissolution rate of the active components is remarkably increased by utilizing an enzymolysis wall breaking technology, the problem that the purity of the multi-polar components (tannin, flavone and polysaccharide) is difficult to increase and extract at the same time is solved through gradient extraction and series purification, and the purity of the total active components is more than or equal to 60%. The obtained composite extract has multiple effects of astringing and tightening, promoting regeneration of elastic fibers and improving contractility of smooth muscles, and is safe and non-irritant. The invention further discloses targeted sustained-release gel containing the extract, and the targeted sustained-release gel can be used for improving vaginal relaxation and deeply repairing private parts.

The invention discloses an arsenic-containing copper-zinc polymetallic ore beneficiation method and an arsenic-containing mineral inhibitor, and belongs to the field of beneficiation. The arsenic-containing mineral inhibitor comprises the following components by mass percent: 40-60% of lime; 30%-40% of ferrous cyanide salt; and 10%-20% of a sulfomethylation modified tannin extract. The sulfomethylation modified tannin extract is prepared from the following raw materials in percentage by mass: 40-60% of tannin extract; 10-20% of sodium hydroxide; 15 to 25% of formaldehyde; and 5-15% of sulfuric acid. According to the method, the lime, the ferrocyanide and the sulfomethylation modified tannin extract are innovatively compounded according to a specific proportion and are in mutual synergistic interaction, the selectivity of arsenic mineral inhibition can be effectively improved, the agent dosage is reduced, the long-term effect of inhibition is enhanced, deep arsenic reduction can be achieved in the mineral separation process, and the concentrate quality and the recovery rate are improved.

The invention discloses a tenuilia microspora NB1-3, a leavening agent and application of the tenuilia microspora NB1-3 in preparation of caragana microspora and moringa oleifera fermented protein feed. The strain is classified and named as nicotiana microspora, and is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M 20251872. The core of the method is that crude fibers and antinutritional factors (tannin and phytic acid) in moringa oleifera and caragana microspora are efficiently degraded by utilizing a strong lignocellulose degrading enzyme system of the tenuilia microspora NB1-3, and meanwhile, the crude protein content of the feed is increased. The prepared fermented protein feed is high in crude protein content and low in crude fiber content and meets the protein feed standard, efficient and high-value utilization of woody plant resources such as caragana microphylla and moringa oleifera is achieved, and a new high-quality and economical protein feed source is provided for animal husbandry.

The present invention relates to tannin-based heat-expandable microspheres, and also to a process for their preparation. The heat-expandable microspheres comprise a thermoplastic shell surrounding a hollow core, wherein the hollow core comprises a blowing agent, and the thermoplastic shell comprises tannin.

According to an example aspect of the present invention, there is provided an intumescent fire retardant composition comprising: an acid source comprising or consisting of ammonium phytate; and a carbon source selected from the group consisting of: carbohydrates, chemically modified lignins, tannin, and any combinations and derivatives thereof.

The present application relates to the technical field of feed processing, and particularly relates to a preparation method of Maotai-flavor distiller's grains fermented feed, which comprises the following steps: drying treatment based on the moisture content of Maotai-flavor distiller's grains to obtain basic distiller's grains; determining the strain ratio of brewer's yeast, bacillus subtilis and aspergillus niger based on the tannin content of the basic distiller's grains to obtain a compound fermentation inoculant; inoculating and then fermenting; determining state evaluation parameters based on the total polyphenol accumulation rate, the dissolved oxygen consumption rate and the microbial activity index during the fermentation process, and performing qualified evaluation, and dynamically adjusting when unqualified; determining the fermentation end point based on the tannin degradation rate and the total polyphenol accumulation rate; and mixing the fermented distiller's grains with the basic feed at a mass ratio of 1% after low-temperature drying of the fermented distiller's grains. The present application realizes three-layer control of raw material evaluation, process control and end point determination, significantly improves the stability and content of functional active ingredients in the product, reduces the tannin and safety risk, and has a good intestinal health improvement effect on animals.

The invention discloses an environment-friendly dyeing process method for paper products, and aims to solve the problems that a traditional environment-friendly dyeing process is large in chromatic aberration fluctuation, unstable in fastness and poor in adaptability of difficult-to-dye paper types. The method comprises the following steps: establishing a paper physical property database based on near infrared spectrum imaging and liquid absorption rate test; calculating an optimal dye liquor concentration gradient, dipping time and temperature through a dye penetration kinetic model and a Bayesian optimization algorithm; gradient permeation dyeing is carried out in the continuous dye vat array by adopting natural vegetable dye; a tannic acid-chitosan composite cross-linking agent is introduced for bio-based color fixation; and closed-loop self-adaptive adjustment is realized by combining hyperspectral imaging online detection and feedback regulation and control. According to the technical scheme, the dye uptake is remarkably increased to 91% or above, the rubbing fastness reaches 4.5 level, the color uniformity and batch consistency are ensured in high-speed continuous production, no heavy metal mordant exists in the whole process, the biodegradability of wastewater is high, and the clean production requirement is met.

This invention discloses a method for reducing carbon and nitrogen emissions and nutrient loss during liquid manure storage. By storing liquid poultry and livestock manure containing plant tannin extracts under natural atmospheric and static conditions, this invention reduces carbon and nitrogen emissions and nutrient loss during storage, increases the fertilizer value of the liquid manure, and improves its physicochemical properties and stability. The plant tannin extracts are natural plant extracts, environmentally friendly and non-toxic, with low cost and simple operation, making them suitable for large-scale application. This invention provides a highly efficient and environmentally friendly liquid manure storage technology for the livestock and poultry farming industry, and offers a sustainable liquid manure management solution.

The invention belongs to the technical field of leather tanning agents, and discloses a light-color polycarboxylic oxidized lignin tanning agent and a preparation method and application thereof. The light-color multi-carboxyl oxidized lignin tanning agent is prepared by carrying out synergistic oxidation reaction on lignin, hydrogen peroxide and ozone in the presence of sodium vinylsulfonate. According to the invention, sodium vinylsulfonate is creatively introduced as an oxidation auxiliary agent, has both surface activity and free radical initiation functions, and forms an efficient synergistic oxidation system with a hydrogen peroxide / ozone system. The system can powerfully break the dense structure of lignin and remarkably promote the benzene ring opening reaction, so that the introduction efficiency of carboxyl is greatly improved. According to the synergistic oxidation system, chromophoric groups of lignin can be effectively destroyed while the lignin is deeply oxidized, deep decolorization and light appearance are achieved, the bottleneck that traditional oxidized lignin is dark in color and difficult to be used for manufacturing light-color or bright-color leather is thoroughly overcome, and the application range of a bio-based tanning agent is greatly expanded.

This invention discloses a method for preparing a heat-clearing and detoxifying oral liquid. Honeysuckle and Scutellaria baicalensis are pulverized and sieved, then enzymatically hydrolyzed with water, ultrasonically extracted, and filtered to obtain extract A. Scrophularia ningpoensis, Rehmannia glutinosa, Forsythia suspensa, Gardenia jasminoides, Viola yedoensis, Gentiana scabra, Isatis indigotica, Anemarrhena asphodeloides, and Ophiopogon japonicus are warm-soaked in water and flash-extracted, then filtered to obtain extract B. Gypsum is crushed, decocted with water, and filtered to obtain extract C. The extracts are combined, concentrated, and sequentially clarified using a flocculant, followed by inorganic ceramic membrane microfiltration and organic ultrafiltration. The clarified liquid is then concentrated, flavoring agents and preservatives are added, the pH is adjusted, the volume is adjusted, filtered, filled, and sterilized to obtain the finished product. This invention utilizes a composite clarification process—low-temperature ultrasonic-enzymatic extraction of honeysuckle and Scutellaria baicalensis, clarification using a flocculant, inorganic ceramic membrane microfiltration, and organic ultrafiltration—to improve the extraction rate of effective components, effectively remove large molecular impurities such as tannins, proteins, and pectin, and significantly improve the clarity and stability of the product.

The invention relates to flavored fruit vinegar and a preparation method thereof, and the flavored fruit vinegar has the beneficial effects that the coexistence of flavor and nutrition is realized through the matching of apples and roxburgh roses; wherein the apple juice is used as a fermentation substrate, so that stable sugar-acid ratio and mellow feeling are provided; the rosa roxburghii tratt greatly enriches active ingredients such as vitamin C, SOD, polyphenol and the like, and lays a health-care foundation of the product. In the fermentation process, the synergistic effect of saccharomycetes, acetic bacteria and lactic acid bacteria is adopted, the saccharomycetes efficiently complete alcoholic fermentation, the acetic bacteria dominate acid production, the lactic acid bacteria not only can generate soft lactic acid, more importantly, metabolites of the lactic acid bacteria can effectively complex and convert tannin astringency in the roxburgh roses, and the taste is fundamentally improved. The final product successfully integrates the mellowness of the apples and the high nutrition of the roxburgh roses and is free of obvious bitter and astringent taste, and the taste, flavor and nutritional value are comprehensively improved.

The invention relates to the technical field of leather chemical industry and leather manufacturing, in particular to a tannin extract based on metal complex modification and a preparation method and application of the tannin extract based on metal complex modification. 15 to 25 parts of aluminum sulfate; 5-10 parts of lanthanum sulfate / cerium sulfate; 0.5-2 parts of sulfuric acid; 0.5 to 2 parts of citric acid; and 500 to 600 parts of water. The modified tannin extract which is light in color, good in dispersity and excellent in tanning property is prepared through the steps of oxidative degradation, chelating masking, metal synergistic complexing and the like. The method is simple in process, environmentally friendly, efficient and suitable for industrial production, and the problems that a traditional vegetable tanning agent is low in whiteness and poor in light resistance stability when applied to white leather, and traditional metal tanning leather is hard in hand feeling, insufficient in light resistance and the like are effectively solved.

The present invention relates to the use of an animal feed additive composition for controlling the growth of undesirable microorganisms, said composition comprising glycerides, vegetable oils, tannins and / or saponins, the glycerol ester is selected from the group consisting of glycerol monopropionate, glycerol dipropionate and glycerol tripropionate, glycerol monobutyrate, glycerol dibutyrate and glycerol tributyrate, glycerol monovalerate, glycerol divalerate and glycerol trivalerate, and mixtures thereof. The invention also relates to the use of the animal feed additive composition for promoting intestinal growth, alleviating or alleviating effects from necrotizing enteritis, modulating intestinal flora and / or as an additive to drinking water.

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 discloses a Chinese chestnut thorn bract hydrolyzed tannin product based on a low-water-activity deep eutectic solvent and a steady-state extraction and refining method of the Chinese chestnut thorn bract hydrolyzed tannin product, and belongs to the technical field of green extraction of natural products. The method comprises the following steps: pretreating chestnut thorn bracts by adopting an antioxidant protective agent, and constructing a low water activity system by taking betaine / L-proline-urea / glycerol-beta-cyclodextrin ternary DES as an extraction solvent and optimizing the molar ratio and the water content; after ultrasonic-assisted extraction, high-purity tannin is obtained through AB-8 macroporous resin purification. According to the method, the steric hindrance of beta-cyclodextrin and a hydrogen bond network are utilized to synergistically inhibit tannin hydrolysis, and ultrasonic enhanced mass transfer is combined, so that the tannin extraction rate is increased by 115% compared with that of a traditional water extraction process, hydrolysis byproducts are reduced by 40% or above, and DES can be recycled at least five times. According to the method, resource utilization of the Chinese chestnut thorn bract waste is achieved, and a new scheme is provided for green steady-state production of the hydrolyzed tannin.

A process for the manufacture of a non-isocyanate polyurethane (NIPU) composition by transesterification of a condensed tannin with a carbonate or a carbonate precursor followed by the reaction with a hardener selected from diamines, triamines, polyamines and mixtures thereof and products and compositions obtained thereby.

This invention relates to the field of traditional Chinese medicine analysis, and particularly to a method for determining the content of multiple components in Terminalia chebula and constructing its characteristic fingerprint spectrum. The method provided by this invention can simultaneously determine chebulin, gallic acid, 4-galloshikimic acid, 5-galloshikimic acid, punicalin (punicalin A&B), corilagin, 1,3,6-tri-O-galloyl-β-D-glucose, chebulin, urolithin M5, chebulin tannic acid, chebulin-lintannic acid, and ellagic acid in Terminalia chebula. It exhibits high sensitivity, good precision, repeatability, and stability, and can be used to detect the tannin content in the extract at each step of the tannin extraction process, as well as for related detection in the study and quality evaluation of tannin components in Terminalia chebula. It can also be used to construct the characteristic fingerprint spectrum of Terminalia chebula. This method can also be used for determining the content of tannin compounds and constructing their characteristic fingerprint spectrum in Terminalia chebula, which contains similar tannin compounds to Terminalia chebula.

The invention discloses a method for predicting the turbidity tendency of beer caused by micromolecular dextrin, and relates to the technical field of beer quality detection. According to the method disclosed by the invention, micromolecular dextrin is determined as a core turbid substance through systematic analysis on beer components. According to the method, colloidal substances are separated from beer to be detected through membrane filtration and centrifugation, the essence of starch substances is verified through an enzymolysis experiment, structural characterization is conducted through Fourier transform infrared spectroscopy, nuclear magnetic resonance and other experiments, and correlation between the colloidal substances and turbidity is verified through FTIR, an electron microscope and DSC (differential scanning calorimetry). Based on the concentration of micromolecule dextrin, the concentration of tannic acid and the DPPH free radical scavenging rate, a multiple linear regression prediction equation is established, accurate prediction of the turbidity tendency of beer is achieved, and technical support is provided for beer production process optimization and quality control.

The invention discloses a tannic acid-assisted antifouling coating for an inner seawater system as well as a preparation method and application of the tannic acid-assisted antifouling coating. According to the invention, tannic acid is used as an anchoring part of the antifouling coating to play a good fixing role on the surface of a base material through the adsorption effect, and then a physical interval is formed between tannic acid and the active center of protease through the connection of a hydrophilic substance in the middle layer, so that the conformation change or active site blockage possibly caused by tannic acid to protease is reduced, and the anti-fouling effect of tannic acid is improved. The activity of the protease is better maintained, and meanwhile, enough sites are provided for the protease, so that the protease can be effectively fixed on the surface of a base material to form an antifouling coating. Protein components in a biofilm matrix can be effectively degraded due to existence of protease on the surface of the antifouling coating, so that adhesion of bacteria and algae is prevented, and the antifouling coating has excellent antibacterial and anti-algae performance. The preparation method is simple, convenient, rapid, low in cost and suitable for preparation of the protective coating of the marine equipment and facilities in special scenes.

A method and formulation for improvement in at least the texture and shelf stability of starch-based foods is disclosed, such as but not limited to gummy candies, through the incorporation of polyphenols, wherein said polyphenols may include but are not limited to one or more of flavonoids, phenolic acids, lignans, stilbenes, and tannins. This method and formulation comprises the use of polyphenol molecules to improve and stabilize starch-based foods for extended periods of time without the use of artificial preservatives. The method and formulation including one or more polyphenols also allows utilization of specific beneficial qualities of the polyphenols including: flavor, aroma, color and the numerous associated health benefits. Thus, the method and formulation facilitates the production of various starch-based foods (e.g., chewy candies, mochi, breads, cakes, pastas, etc.) with unique and previously unattainable qualities that are advantageous for consumer-packaged foods.

The invention relates to a preparation method of low-cytotoxicity ecological leather based on all-natural materials. Comprising the following steps of batch grouping, pre-soaking, fleshing and trimming, main soaking, fleshing and trimming, enzyme unhairing, liming, splitting and trimming, deliming, softening, pickling, tanning by combining tara tannin extract, tea polyphenol and zeolite, wringing, shaving and buffing, rewetting, primary neutralizing, fat liquoring, drying and finishing, and finishing. According to the tanning method, a tanning agent can be better combined with leather fibers by adopting a tanning extract-tea polyphenol-zeolite combined tanning method, so that the shrinkage temperature and the damp-heat resistance stability of the leather are improved, and the strength and the wear resistance of the leather are enhanced. Meanwhile, the tea polyphenol has the effects of resisting oxidation, resisting bacteria and the like, the aging resistance and the antibacterial performance of the leather can be improved, and the service life of the leather is prolonged.

This invention belongs to the field of bio-fermentation technology and relates to a strain of Bacillus videmannii SXZY-01 and its applications, including: isolating and screening a strain of Bacillus videmannii capable of producing tanninase from the surface of tobacco. Bacillus wiedmannii The strain SXZY-01, with accession number CCTCC NO:M 2025151, was used to ferment a biological agent containing SXZY-01. After fermentation optimization, the tannin enzyme activity reached 40.98 U / mL. This invention applies a high-enzyme-activity solution to tobacco leaf fermentation and optimizes the fermentation process, achieving efficient degradation of tannins, significantly improving the sensory quality of tobacco, reducing the bitter aftertaste, and demonstrating outstanding technical effects. It provides a green and environmentally friendly solution for upgrading tobacco quality and is in line with the industry's high-quality development direction.

The invention belongs to the technical field of food processing, and discloses a low-GI low-AGEs raspberry tannin toast preparation method, which comprises: (1) preparing a raspberry tannin extract; (2) mixing starch, raspberry tannin extract, yeast, fructo-oligosaccharide, salt, milk powder, olive oil and water, and stirring until the dough forms a thin film; (3) fermenting the obtained dough; (4) forming: exhausting, cutting and rounding the fermented dough, and putting the dough into a toast mold; (5) performing secondary fermentation: performing fermentation under the conditions that the temperature is 37-39 DEG C and the humidity is 83-87% until the volume of the dough is increased to 1.8-2.7 times of the original volume; (6) baking the fermented dough in a vacuum oven; and (7) immediately demolding after baking, and packaging after cooling. According to the method, through efficient cooperation among the biological activity of raspberry tannin, matrix construction of low-GI raw materials and vacuum heating and baking process innovation, the AGEs content and the GI value in the toast bread are remarkably reduced.

The invention provides a method for separating germanium from a sulfuric acid solution by preparing a composite germanium adsorbent through in-situ polymerization, and relates to the technical field of germanium adsorption separation. The method comprises the following steps: firstly, preparing a carbon-based carrier to obtain a carbon carrier; oxidizing the carbon carrier to obtain a surface oxidized carbon carrier; the preparation method comprises the following steps of: firstly, performing in-situ polymerization grafting of tannic acid to obtain a high-acid stable adsorbent, and finally, putting the adsorbent into a germanium-containing sulfuric acid medium solution to adsorb germanium. According to the method, the problems of high tannin consumption, deterioration of solution quality and difficulty in reutilization of tannin in a traditional tannin germanium precipitation process are solved, and the prepared carbon / tannin complex adsorbent is stable in a high-acid system and can realize adsorption separation of germanium in a sulfuric acid solution.

The invention relates to the technical field of pet food, in particular to an eye-benefiting and liver-protecting fermentation type canine nutrient and a preparation method thereof, and the eye-benefiting and liver-protecting fermentation type canine nutrient comprises the following components: a liver-protecting component, an eye-benefiting component, a chitosan-calcium compound solution, beer yeast powder, honey, lactobacillus plantarum freeze-dried powder and bacillus subtilis freeze-dried powder. Porous starch of the liver protection component carries and protects N-acetylcysteine, and carnosine and quercetin modified by zein remove fermentation byproducts. The eye benefiting component is loaded and protected by octenyl succinic acid modified starch, and the dispersity and the stability of the xanthophyll are improved by grafting a hydrophobic cavity of sulfobutyl-beta-cyclodextrin. The laccase fixed on the surface of the porous starch catalytically oxidizes phenolic hydroxyl groups in a tannic acid-gelatin network on the surface of the eye benefiting component by using dissolved oxygen, a protective shell is formed by in-situ crosslinking and curing, and a chitosan-calcium compound solution closes the physical distance between the laccase and the tannic acid-gelatin network, so that the enzymatic oxidation reaction rate is increased.

The invention discloses a non-grain type protein source feed quality safety evaluation method, and particularly relates to the technical field of feed detection. The method comprises the following steps: obtaining a non-grain type protein source feed sample, drying, crushing and homogenizing; detecting protein content and target amino acid composition, and constructing a nutrition suitability scoring model; detecting anti-nutritional factors such as lignin, tannin and gossypol, and calculating an anti-nutritional risk score based on a limit value; detecting the content of heavy metals such as lead, cadmium, mercury and arsenic, and generating a heavy metal safety score; detecting the content of biotoxins such as aflatoxin, vomitoxin and zearalenone, and outputting a biotoxin safety score; and finally, performing weighted calculation on each score, and constructing a comprehensive quality safety index model to obtain the quality safety level of the feed. The method realizes multi-dimensional and quantitative evaluation of the nutrition and safety of the non-grain type protein source feed, is suitable for feed resource development, alternative raw material screening and feed formula optimization, and has the advantages of strong adaptability and strong operability.