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65 results about "Oxidative activity" patented technology

Preparation method and application of chlorogenic acid carbon quantum dot microsphere capsule

The invention discloses a preparation method and application of a chlorogenic acid carbon quantum dot microsphere capsule, a natural active product chlorogenic acid (CHA) in coffee is used as a raw material, and chlorogenic acid carbon quantum dots (CHA CDs) with anti-inflammatory and antioxidant activity are synthesized through a hydration method; then, the chlorogenic acid carbon quantum dots (CHACDs) are packaged with chitosan, and meanwhile, the chitosan on the outer layer of the capsule is modified with the DNA aptamer, so that the chlorogenic acid carbon quantum dot microsphere capsule Apt-CS (at) CHA CDs are obtained. The chlorogenic acid carbon quantum dot microsphere capsule disclosed by the invention not only has anti-inflammatory and antioxidant activity, but also can regulate intestinal flora, enhance intestinal barrier function and immune conditions; moreover, the microsphere capsule can be retained in the intestinal tract for a long time, so that the microsphere capsule can resist inflammation and remove high-level reactive oxygen species (ROS), can be retained in the intestinal tract for a long time and play a role in regulating intestinal flora, finally, the disease development of IBS is comprehensively relieved, and the microsphere capsule has a very good application prospect.
Owner:CHONGQING UNIVERSITY THREE GORGES HOSPITAL

Antibacterial and antioxidant chitosan-based fruit fresh-keeping film and preparation method thereof

The invention relates to the technical field of food packaging, and particularly discloses an antibacterial and antioxidant chitosan-based fruit fresh-keeping film and a preparation method thereof. The film comprises chitosan, glycyrrhizic acid, origanum essential oil, a plasticizer, a copper ion cross-linking agent, an acetic acid aqueous solution film-forming solvent, vesicle stable loading essential oil and a coordination cross-linking strengthening structure, and all the components construct a composite system through specific interaction. The preparation method comprises the following steps: firstly prefabricating glycyrrhizic acid-origanum vulgare essential oil vesicles, then adding vesicle powder and a plasticizer into a chitosan film-forming solution, uniformly mixing, casting and drying to form a primary film, and subsequently performing ionic crosslinking and balanced cutting to obtain a finished product. The film can be used for fresh-keeping packaging of fruits, has the advantages of being environmentally friendly, stable in structure and lasting in antibacterial and antioxidant activity, and can effectively delay reduction of the quality of the fruits; in addition, the preparation method disclosed by the invention is controllable in process, simple and convenient to operate, good in component synergism and beneficial to large-scale production and application.
Owner:CENT SOUTH UNIV

Ketogenic compositions and methods of use thereof

Compositions and methods for providing a person with an exogenous and therapeutically effective supply of short chain fatty acids, chlorogenic acid, and, optionally, ketones are disclosed. The compositions include one or more short chain fatty acids (such as butyric acid, butyrate salts, propionic acid, propionate salts, acetic acid, or acetate salts); chlorogenic acid; and, optionally, one or more beta-hydroxybutyrate salts. The compositions and methods are useful for inducing ketosis and / or beta-oxidative activity in a subject. In addition, compositions that include concentrated forms of, and methods of using, chlorogenic acid (alone or in combination with short chain fatty acids and ketones) to induce ketogenesis in a subject are disclosed.
Owner:CAVALERI HEALTH INC

Preparation method of anti-aging body-building nutritional product

The invention discloses a preparation method of an anti-aging body-building nutritional product. The preparation method comprises the following steps: step 1, weighing raw materials in parts by weight; 2, pretreating the tea polyphenol and the tea micromolecules; 3, mixing the pretreated tea polyphenol and tea micromolecules with other raw materials; step 4, adding maltodextrin and erythritol into the mixed solution, and stirring and mixing; and step 5, removing agglomerated particles, and tabletting or filling into capsules. According to the present invention, by adding the collagen peptide, the oxidation resistance of the product can be increased, the oxidative damage after exercise can be effectively relieved, the cell aging can be delayed, the traditional sucrose is cancelled, the maltodextrin and the erythritol are adopted to replace the sucrose, and the product is suitable for the long-term consumption of the body-building crowd; the preparation method solves the problems of easy oxidation and activity loss of core components in a traditional preparation method, so that substances such as tea polyphenols and tea micromolecules are more easily absorbed and utilized by human bodies.
Owner:TIANFUTIANMAX (XIAMEN) BIOTECHNOLOGY CO LTD

Recombinant saccharomyces cerevisiae, 11-seed oil fermentation product as well as preparation method and application of 11-seed oil fermentation product

The invention discloses recombinant saccharomyces cerevisiae, a 11-seed oil fermentation product as well as a preparation method and application of the 11-seed oil fermentation product, and belongs to the technical field of synthetic biology and fermentation product preparation. According to the recombinant saccharomyces cerevisiae disclosed by the invention, a caffeic acid coenzyme A ligase 4CL coding gene, a chalcone isomerase CHI coding gene, a flavanone-3-hydroxylase F3H coding gene and a chalcone synthase CHS mutant coding gene are over-expressed, and the chalcone synthase CHS mutant is preferably Y69H / H71Y / Q161K. The preparation method of the 11-seed oil fermentation product comprises the following steps: fermenting a recombinant saccharomyces cerevisiae fermentation solution in the presence of a sophora flower bud extract and caffeic acid to obtain a first fermentation solution; fermenting the lactic acid bacteria fermentation liquor in the presence of 11 seed oil to obtain second fermentation liquor; and mixing the first fermentation liquid and the second fermentation liquid, continuing fermentation, and respectively collecting an oil phase and a water phase after fermentation is finished, so as to obtain a fermentation product. The product provided by the invention has multivitamin antioxidant activity.
Owner:BEIJING MAOSI TRADING CO LTD +1

Small molecule peptide with antioxidant activity as well as preparation method and application of small molecule peptide

The invention discloses a small molecule peptide with antioxidant activity as well as a preparation method and application of the small molecule peptide. According to the technical scheme, the method comprises the following steps: 1) carrying out enzymolysis on squid viscera by adopting neutral protease (4000U / g, pH 7.0, 50 DEG C and 8 hours), carrying out freeze drying, and identifying peptide fragments through MALDI-TOF mass spectrometry; 2) binding molecular docking (AutoDock Vina screening binding energy lt; the method comprises the following steps of: screening out two small molecular peptides YVPGKFRQTN and GLPQTMEVYLR with antioxidant activity (-8.0 kcal / mol) and molecular dynamics simulation verification, namely YVPGKFRQTN and GLPQTMEVYLR with antioxidant activity; and 3) experimental verification shows that the DPPH free radical scavenging rates of the two are respectively 89.4% and 83.1% when the concentration of the two is 2.5 mg / mL, and oxidative stress is remarkably inhibited by up-regulating an Nrf2 pathway (protein expression is 3.0-3.5 times, and HO-1 / SOD1 gene expression is 3.6-4.1 times). The obtained antioxidant activity small molecule peptide can be applied to development of functional food, cosmetics and anti-aging drugs, and a new way is provided for high-value utilization of squid byproducts.
Owner:THE FIRST AFFILIATED HOSPITAL OF TIANJIN UNIV OF TRADITIONAL CHINESE MEDICINE

Co-MOF-coated CEO intelligent active packaging film and preparation method and application thereof

The invention belongs to the technical field of food packaging materials, and particularly relates to a Co-MOF (at) CEO intelligent active packaging film and a preparation method and application thereof. Cinnamon essential oil is embedded in a cobalt-based metal organic framework to form composite nanoparticles with antibacterial and ammonia-sensitive functions, then the composite nanoparticles and potato starch are mixed, a film is formed through a solution casting method, and the intelligent active packaging film is obtained. According to the preparation method of the intelligent active packaging film provided by the invention, the water solubility of the potato starch packaging film is reduced, the prepared intelligent active packaging film has good antibacterial, antioxidant activity, mechanical and barrier properties and good sensitivity to ammonia, the freshness of meat can be monitored in real time only through the color change of the packaging film, and the method is suitable for large-scale popularization and application. The fresh-keeping and freshness visual monitoring of food such as fish meat and the like can be realized at the same time, and the method has a good application prospect in the field of intelligent active packaging.
Owner:SHANDONG UNIV OF TECH

Antioxidant composition based on pH response type microcapsules as well as preparation method and application of antioxidant composition

The invention discloses an antioxidant composition based on pH response type microcapsules as well as a preparation method and application of the antioxidant composition. Wherein the antioxidant composition contains ferulic acid, L-ascorbic acid-2-glucoside and tocopheryl acetate, and the mass ratio of the ferulic acid to the L-ascorbic acid-2-glucoside to the tocopheryl acetate is 1 to (3 to 5) to (5 to 10). A composition of ferulic acid, L-ascorbic acid-2-glucoside and tocopheryl acetate in a specific ratio is used as a core material, and a chitosan-sodium alginate compound is used as a wall material. The microcapsule can effectively protect the stability of antioxidant active ingredients in the storage period, and can specifically respond to a weak acidic pH environment of skin to release active matters so as to realize intelligent delivery. Components of the core material have a synergistic anti-oxidation effect, so that the final effect of the product is remarkably improved. The cosmetic composition containing the microcapsules has the advantages of being high in stability, remarkable in effect, good in skin feeling and the like.
Owner:SHANGHAI NAT ENG RES CENT FORNANOTECH

Rhodotorula mucilaginosa JQRM001 and application thereof

The invention belongs to the technical field of microbial fermentation, and particularly relates to rhodotorula mucilaginosa JQRM001 and application thereof. The invention provides a rhodotorula mucilaginosa JQRM001, the Latin name of the rhodotorula mucilaginosa JQRM001 is Rhodotorula mucilaginosa, the rhodotorula mucilaginosa JQRM001 is preserved in China General Microbiological Culture Collection Center, the address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, the preservation date is July 15, 2025, and the preservation number is CGMCC No.35240. The invention further provides a preparation method of the rhodotorula mucilaginosa. The rhodotorula mucilaginosa JQRM001 not only has excellent performance of high temperature resistance and acid resistance, but also can be used for specifically synthesizing alkylpyrazine flavor substances and remarkably improving the antioxidant activity of plant polysaccharides.
Owner:CHINA AGRI UNIV

Viscose macrobiofiber containing antioxidant active ingredients and method for preparing the same

This invention provides viscose macrobiofibers containing antioxidant active components and a method for preparing them. [Solution] The viscose macrobio fiber prepared by reacting raw materials by weight of 20-24 parts COFs carrier, 5-8 parts plant-derived antioxidant active component, 200-240 parts spinning solution, 2-4 parts sodium dodecyl sulfate, 2-4 parts glyceryl monooleate, 3-5 parts cyclodextrin, 2-4 parts titanium dioxide, and 3-5 parts silane coupling agent, has the antioxidant active component attached to the COFs carrier during the preparation process. In the prepared viscose macrobio fiber, the COFs carrier functions as the backbone of the viscose macrobio fiber, and the ends of the COFs carrier are exposed to or close to the surface of the viscose macrobio fiber. The antioxidant active component on the COFs carrier is easily transferred to the surface of the fiber, and the viscose macrobio fiber has a good antioxidant effect.
Owner:BAICAO FUTURE HEALTH TECHNOLOGY (QINGDAO) CO LTD +1

A method for preparing an electroenzyme cascade self-supplying H2O2 cathode material and its application

PendingCN122324928AElectrode potentialPorphyrin
This invention relates to the fields of environmental pollution remediation and biocatalysis, and provides a method for preparing a self-supplied H2O2 cathode material via an electroenzyme cascade and its application. The cathode material is an ionic liquid-modified CPO-IL. EMB The bio-hybrid material formed by immobilizing molybdenum disulfide-modified MoS2@Co-CNNT composite material, namely CPO-IL EMB / MoS2@Co-CNNT. An electroenzyme cascade degradation system was constructed using this biohybrid material as the cathode. By controlling the electrode potential, controllable H2O2 generation was achieved while protecting the Fe(III) in the iron porphyrin ring of CPO from reduction, thus maintaining the intrinsic oxidative activity of the enzyme. The in-situ generated H2O2 activates CPO-IL. EMB It efficiently catalyzes the oxidative degradation of mesotrione. This invention requires no external CPO-IL. EMB It is green and environmentally friendly, with high degradation efficiency, and has promising applications in agricultural wastewater treatment and environmental remediation.
Owner:山西工学院

Method for inactivating viruses in sewage water

The application relates to a method for inactivating viruses in sewage. The method comprises the following steps: introducing heterotrophic bacteria into sewage to be inactivated; increasing the carbon-nitrogen ratio of the sewage during the activation and expansion of the heterotrophic bacteria; washing and resuspending the activated and expanded heterotrophic bacteria to form a heterotrophic bacteria liquid to be used; inoculating the heterotrophic bacteria liquid into the sewage and reducing the carbon-nitrogen ratio of the sewage, so that the heterotrophic bacteria produce an oxidative stress response to inactivate viruses. The method adjusts the carbon-nitrogen ratio to make the heterotrophic bacteria change from an eutrophic environment to an oligotrophic environment, activates the oxidative stress pathway of the heterotrophic bacteria, increases the generation of oxidative active species such as superoxide free radicals, causes oxidative damage to the virus shell or envelope, and thus promotes the inactivation of viruses. The method is simple and efficient, and has a wide application scenario.
Owner:TSINGHUA UNIVERSITY

Preparation method of tylorrhynchus antioxidative peptide

The invention belongs to the technical field of bioactive peptide preparation, and discloses a preparation method of a tylorrhynchus antioxidant peptide, which comprises the following steps: mixing tylorrhynchus homogenate with enzyme, and carrying out enzymolysis to obtain the tylorrhynchus antioxidant peptide, the enzyme comprises flavourzyme and pancreatin. The invention provides the preparation method of the tylorrhynchus antioxidant peptide which is high in antioxidant activity and suitable for industrial mass production, the protein hydrolysis degree is improved, and the oxidation resistance of the tylorrhynchus antioxidant peptide is improved. The method can effectively solve the problems of low efficiency, high cost and inapplicability to large-scale extraction and preparation of the tylorrhynchus antioxidative peptide in the existing polypeptide extraction process.
Owner:GUANGDONG OCEAN UNIVERSITY

Induction culture method for lavender suspension cells having high antioxidant activity

An induction medium and induction culture method for lavender suspension cells having high antioxidant activity. Suspension cells having a high ABTS free radical scavenging rate can be cultured by optimizing the formulation of a medium, and the contents of total phenols, total flavonoids and total triterpenoids are relatively high. Additionally, lavender suspension cells induced by using the medium grow rapidly and have a stable system, and extracts thereof can significantly reduce redundant ROS generated by oxidative stress of HaCaT cells, exhibit good biological antioxidant activity, and provide a reference for the development of lavender secondary metabolite resources and the like.
Owner:JIANGNAN UNIV

Dual-support catalysts for tobacco industry off-gas remediation, methods of making and use thereof

The present invention relates to a dual-support catalyst for tobacco industry organic waste gas treatment, a preparation method and use thereof, the catalyst comprising (a) 0.5-5 wt% of a supported active component Pt / α-Fe2O3 (loading amount of Pt is 0.1-5 wt%), (b) 0.5-5 wt% of a catalytic aid MoO3, (c) 1-10 wt% of a molding aid SiO2, (d) 1-10 wt% of a molding aid Al2O3, and (e) 70-97 wt% of a composite oxide carrier Zr x Ti (1‑x) Co 1.5 O4 (x is 0.15-0.25). The dual-support catalyst of the present invention has excellent catalytic oxidation activity on volatile organic compounds (VOC) in tobacco industry organic waste gas, and has persistent catalytic oxidation activity due to the anti-sulfur and anti-chlorine poisoning performance. In addition, the catalyst of the present invention can be molded into a desired shape and has excellent compressive strength, meeting the deep purification needs of VOC in tobacco industry organic waste gas.
Owner:UNIV OF SCI & TECH OF CHINA

Method for improving malic acid-lactic acid fermentation performance of Oenococcus oeni SD-2a in red wine

The invention discloses a method for improving the malic acid-lactic acid fermentation performance of Oenococcus oeni SD-2a in red wine, and belongs to the technical field of wine brewing. According to the method disclosed by the invention, after an alcoholic fermentation stage of the red wine is finished, filtration and sterilization are carried out, proline and Oenococcus oeni SD-2a are added, and then malic acid-lactic acid fermentation is carried out. The invention finds that the stress effect of high-concentration alcohol on Oenococcus oeni SD-2a can be reduced by adding proline in the malic acid-lactic acid fermentation stage after the alcoholic fermentation stage in the wine is ended; the fermentation effect is promoted, so that the aroma complexity of the wine is improved; the antioxidant activity of the grape wine is improved by the proline; phenolic compounds in the wine are protected, and finally the quality of the wine is remarkably improved.
Owner:GANSU AGRI UNIV

A method for semi-solid brewing of Luzhou-flavor liquor with antioxidant activity

The application discloses a method for brewing semi-solid state Luzhou-flavor liquor with antioxidant activity, which comprises the following steps: adding high-gluten corn bran obtained by regulating the milling and steaming procedure into low-gluten corn, and adding composite reinforcing strains to the corn, so as to brew Luzhou-flavor liquor with good antioxidant activity and improved flavor quality. The composite reinforcing strains are composed of Saccharomycopsis fibuligera and Bacillus subtilis. The method for brewing Luzhou-flavor liquor with high antioxidant activity comprises the following steps: adding high-gluten corn bran obtained by the specific milling and steaming procedure into low-gluten corn, and adding composite reinforcing strains with specific amount and proportion to semi-solid state fermentation with specific Luzhou-flavor Daqu, so as to obtain liquor with antioxidant activity of more than 80% and meeting the national standard of semi-solid state Luzhou-flavor liquor.
Owner:CHINA AGRI UNIV

Citric acid and licochalcone B repairing composition and application

The invention discloses a citric acid and licochalcone B repairing composition and application, and belongs to the technical field of medicine. According to the invention, the repair promoting potential of citric acid and the anti-inflammatory and anti-oxidation activity of licochalcone B are known, and the two natural active components with different action mechanisms are creatively compounded according to a specific proportion; therefore, the citric acid and licochalcone B repairing composition which has a synergistic effect on repairing gastric mucosa epithelial cell injury caused by HP infection is provided, the effect is better than that of a single component, safety and compliance are better, and a new technical approach is provided for solving the repairing problem of clinical gastric mucosa injury.
Owner:JINAN MICROECOLOGY & BIOMEDICINE PROVINCIAL LAB

Chlorinated monocarbonyl curcumin compounds, preparation method, and application

Chlorinated monocarbonyl curcumin compounds, a preparation method, and an application are provided. 3,5-dichloro-4-hydroxybenzaldehyde, 3-chloro-4-hydroxy-5-methoxybenzaldehyde, 4-piperidone, 1-methyl-4-piperidone, 1-ethyl-4-piperidone and 1-isopropyl-4-piperidone are used as raw materials, the unstable β-dicarbonyl structure of curcumin is substituted by monocarbonyl group, and chlorine substitution is carried out at the corresponding position of the benzene ring to obtain more stable monocarbonyl curcumin compounds CAK01-CAK07, which can improve the solubility and biological activity of curcumin at the same time, so that it has higher safety, better pharmacokinetic behavior and higher anti-inflammatory and antioxidant activity, the curcumin compounds are used to prepare drugs for the treatment of inflammation-related diseases.
Owner:SOUTHWEST MEDICAL UNIV

Wound surface treatment agent and preparation method thereof

The invention relates to a wound surface treatment agent and a preparation method thereof, and relates to the technical field of medical instruments, polyvinylpyrrolidone (PVP) is adopted to carry out organic molecule inclusion and stabilization on chlorine dioxide, so that chlorine dioxide keeps a dissolved state and chemical stability in a physiologically compatible weakly alkaline solution, and can be directly used without acidic activation; therefore, chemical stimulation of acid to the wound surface is avoided. When the stable system is in contact with wound exudate, the stable system can gradually release chlorine dioxide molecules with strong oxidation activity under the action of a body fluid ion environment, and a broad-spectrum and efficient antibacterial effect is locally played on a wound. Meanwhile, the released chlorine dioxide can promote the local blood coagulation process through the oxidation effect, and the healing process is facilitated. On the basis, the comprehensive performance is further enhanced through dosage form design, the effects of rapidly astringing wounds, reducing infection and promoting healing are achieved, and meanwhile the skin wound dressing is suitable for nursing skin wounds with different characteristics.
Owner:BEIJING TINGLE LAIKELI MEDICAL APPLIANCES CO LTD

Phytobacterium plantarum XJSN202504 and application thereof in acute alcoholism

The invention relates to the technical field of microorganisms, and discloses a plant lactobacillus XJSN202504 and application thereof in acute alcoholism, the plant lactobacillus XJSN202504 is preserved in China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC NO.34746, and the preservation time is June 3, 2025. The invention further discloses a preparation method of the plant lactobacillus XJSN202504. The lactobacillus plantarum XJSN202504 disclosed by the invention can be used for improving liver injury related indexes in serum and expression of inflammation related genes, and also can be used for adjusting the activity of antioxidant enzymes in the liver and relieving alcohol-induced oxidative stress injury; moreover, gastric mucosa, small intestine and colon injuries caused by a large amount of alcohol can be effectively prevented, the anti-inflammatory activity and the antioxidant activity are better, the anti-alcohol function can be achieved through gastrointestinal tracts, and the effects of protecting liver and digestive tract mucosa are achieved.
Owner:CHONGQING DEXIANG BIOTECHNOLOGY CO LTD

Efficient polymerization method based on 1, 2-dithiolane and derivative monomers thereof

The invention discloses an efficient polymerization method based on 1, 2-dithiolane and derivative monomers thereof, and belongs to the technical field of polymer synthesis. The method comprises the following steps: dissolving an organic monomer containing 1, 2-dithiolane in an organic solvent to obtain an organic solution of the monomer; the preparation method comprises the following steps: adding an initiator with oxidation activity into an organic solution of a monomer, and stirring under the conditions of normal temperature, normal pressure and air to realize rapid ring-opening polymerization to prepare the polymer. The reaction conditions are mild, compared with a traditional method, the reaction temperature is low, severe conditions such as heating, water removal and inert gas protection are not needed, energy consumption and equipment requirements are reduced, and the conversion rate of the monomer is increased to 70-80% or above. The oxidative polymerization method used in the invention is suitable for a variety of organic solvents and a variety of 1, 2-dithiolane monomers, is easy for large-scale popularization, and has considerable universality.
Owner:JILIN UNIVERSITY

A firming anti-wrinkle composition and method of making and using same

PendingCN122424098ABULK ACTIVE INGREDIENTGynostemma (plant)
The present application relates to the technical field of cosmetic composition, and particularly relates to a firming and anti-wrinkle composition, a preparation method and application thereof, which comprises the following steps: preparing a ternary random copolymer by polymerization, loading tetrahydrocurcumin, and preparing a temperature-sensitive nanoparticle dispersion liquid through dialysis and temperature control refining; hydrating, sterilizing and cooling a humectant, a thickening agent and a chelating agent; sequentially adding an antioxidant active component, a polypeptide and a plant repair component; adjusting pH, compounding a preservative system, adding the temperature-sensitive nanoparticle dispersion liquid, homogenizing, defoaming, filling and obtaining a finished product. The present application realizes stable, slow release of active ingredients through a temperature-sensitive nano-carrier, and synergistically enhances the polypeptide, the lipohydric antioxidant component and the gynostemma pentaphyllum repair component, effectively improves the defects of easy inactivation and poor transdermal absorption of active ingredients, and has excellent multi-functional skin care effects of moisturizing, firming, anti-wrinkle and antioxidant.
Owner:HANGZHOU JIEFU TECH CO LTD

Ganoderma lucidum bud slice and preparation method thereof

The invention discloses a ganoderma lucidum bud slice and a preparation method thereof. The preparation method comprises the steps of pretreatment, airing, drying, slicing, hot air drying and the like. Multi-factor interaction analysis is carried out through a response surface method, three parameters of slice thickness, drying temperature and drying time are established as independent variables, energy consumption, water content and antioxidant activity comprehensive score are taken as dependent variables, and the optimal slice process conditions are determined as follows: the drying time is 80 min, the drying temperature is 80 DEG C, and the slice thickness is 3 mm. Compared with the traditional freeze-drying, shade-drying and sun-drying methods, the drying process has the advantages that the active ingredients are reserved, the antioxidant activity is improved, and the energy consumption is obviously reduced. The process is stable and reliable, provides theoretical basis and technical support for industrial application of the ganoderma lucidum buds, and has a wide prospect.
Owner:JILIN INST OF CHEM TECH

Organic selenium compound and application thereof in preparation of antioxidant

The invention provides an organic selenide. The organic selenide has a structure shown as the following I. The natural active compound sinapic acid is combined with the selenium element to synthesize the novel organic selenium compound, so that the blank of drug combination of a traditional Chinese medicine antioxidant activity structure and the selenium element is filled up, the antioxidant activity of the traditional Chinese medicine antioxidant activity structure and the selenium element generates a synergistic effect, and the safety and the antioxidant effect are improved; and the compound has huge potential in the aspects of preparing antioxidants, medicines for preventing and / or treating diseases caused by oxidative damage and the like.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES

Preparation method and application of silver carp skin collagen-based antibacterial antioxidant active coating

The invention discloses a preparation method and application of a silver carp skin collagen-based antibacterial active coating. The silver carp skin collagen-based antibacterial and antioxidant active coating is prepared from the following raw materials: collagen, epsilon-polylysine, carvacrol, sulfobutyl-beta-cyclodextrin and ultrapure water; wherein the stoichiometric ratio of the sulfobutyl-beta-cyclodextrin to the epsilon-polylysine is 40: 1, and the mass ratio of the sulfobutyl-beta-cyclodextrin to the carvacrol is 2: 1. The silver carp skin collagen is used as a coating substrate, and the natural antibacterial peptide epsilon-polylysine and the plant essential oil carvacrol play a synergistic antibacterial role. In addition, the epsilon-polylysine and the sulfobutyl-beta-cyclodextrin are crosslinked through electrostatic interaction. The silver carp skin collagen-based antibacterial antioxidant active coating prepared by the invention does not contain a reagent toxic to a human body, is high in safety, and has a good coating preservation effect on fresh fish balls. In addition, the method is simple in technological process and can be easily applied to the field of aquatic food preservation.
Owner:FUZHOU UNIV

Washing method, washing device, and non-transitory computer-readable storage medium

The present disclosure relates to a washing method, a device, and a storage medium. The method includes: when a washing machine is performing washing, turning on an anti-color bleeding device of the washing machine, the anti-color bleeding device being configured to release an oxidizing active substance; controlling the washing machine to allow water-entering, and stopping water-entering when a level of water entering the washing machine reaches a first target water level; and when a duration of stopping water-entering reaches a first duration, controlling the washing machine to allow water-entering, and when the level of water entering the washing machine reaches a second target water level, stopping water-entering and washing clothes in the washing machine, the second target water level being higher than the first target water level.
Owner:XIAOMI TECH (WUHAN) CO LTD +2

Method for extracting astaxanthin from haematococcus pluvialis and application thereof

This invention provides a method for extracting astaxanthin from Haematococcus pluvialis and its application. The method includes the following steps: S1. Raw material pretreatment; S2. Enzymatic hydrolysis with a complex enzyme; S3. Solubilization with a surfactant; S4. Adsorption by iron(III) oxide-cellulose porous microspheres; S5. Magnetic separation and washing; S6. Astaxanthin elution and microsphere recovery; S7. Concentration and drying. This invention utilizes a complex enzyme consisting of cellulase, alginate lyase, and mannanase to synergistically hydrolyze the multilayer polysaccharide structure of thick-walled spores of Haematococcus pluvialis, thereby fully releasing astaxanthin. Furthermore, iron(III) oxide-cellulose porous microspheres with benzyl and octyl surface modifications are used for highly selective adsorption of astaxanthin, combined with magnetic separation technology, thus improving the astaxanthin yield. The extraction process of this invention is carried out under medium-low temperature conditions, and butylated hydroxytoluene is added to the eluent, effectively avoiding thermal degradation, photolysis, and oxidation of astaxanthin, resulting in a high retention rate of antioxidant activity in the obtained astaxanthin.
Owner:广州优卡思农业技术有限公司

Device for determining activity and antioxidant activity of acid-controllably degraded polysaccharide

The utility model relates to the technical field of activity detection, in particular to an acid controllable degradation polysaccharide activity and antioxidant activity measuring device which comprises a top frame, a uniform detection module is arranged at the bottom of the top frame and comprises a base, a plurality of annular mounting plates are arranged in the base, and the annular mounting plates are arranged on the top frame. Circular sliding grooves are formed in one sides of the multiple annular mounting plates, movable frames are movably connected to the interiors of the multiple circular sliding grooves, supporting plates are fixedly connected to one sides of the multiple annular mounting plates, the other sides of the supporting plates are fixedly connected with the base, and fixing springs are fixedly connected to the inner walls of the multiple movable frames at equal intervals; one side of each fixing spring is fixedly connected with a fixing plate, one side of each fixing plate located in the same movable frame is fixedly connected with the same conductor detection table, and the activity and antioxidant activity measuring device for the acid controllable degradation polysaccharide has the advantage that the inaccuracy of detection results is reduced.
Owner:SHANGLUO UNIV