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276 results about "Antioxidative enzyme" patented technology
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Antioxidant enzymes are the main line of defense against free radicals in animal and plant cells. Uncontrolled generation ROS are involved in a number of human disease states, including diabetes and cancer due to disturbance in cellular and molecular processes including cell growth, differentiation and prolife...
Compositions and methods for counteracting effects of reactive oxygen species and free radicals
InactiveUS6890896B1Stimulate （upregulateHigh expressionPeptide/protein ingredientsMetabolism disorderDiseaseDietary supplement
Owner:ISCHEMIX
Single amino acid based compounds for counteracting effects of reactive oxygen species and free radicals
InactiveUS20050130881A1Eliminate reduce prevent generationDetoxifying ROS and free radicalsAntibacterial agentsOrganic active ingredientsCompound (substance)Antioxidative enzyme
Single amino acid compounds and methods for upregulating expression of a gene encoding an antioxidative enzyme, such as superoxide dismutase or catalase, to counteract harmful oxidative effects of reactive oxygen species and other free radicals are described. The single amino acid compounds may be used in compositions and methods to treat or prevent diseases and conditions characterized by undesirable elevation of reactive oxygen species and other free radicals.
Owner:ISCHEMIX
Stable detection kit of total bile acid
ActiveCN104198420AImprove stabilityEasy to operateColor/spectral properties measurementsBiological testingPreservativeSurface-active agents
The invention provides a stable detection kit of total bile acid. The kit comprises a reagent R1 and a reagent R2, wherein the reagent R1 comprises the following components: a buffering solution, beta-thionicotinamide adenine dinucleotide, a surface active agent, a stabilizing agent and a preservative; the reagent R2 comprises the following components: a buffering solution, reduction type coenzyme I (NADH), 3alpha-hydroxysteroid, a surface active agent, antioxidant enzyme, a stabilizing agent and a preservative. The stable detection kit provided by the invention has the advantages that since the antioxidant enzyme is added into the reagents, NADH can be stored for a long time, the influence caused by more interference components in the reaction process is eliminated, so that the NADH can be utilized efficiently, the speed of circulating reaction is increased, the detection accuracy is improved, the sensitivity is high, the linear range is wide, simultaneously, the used amount of main reaction materials can be reduced and the cost of the reagents is reduced.
Owner:上海睿康生物科技有限公司
Antioxidant polymer nanocarriers for use in preventing oxidative injury
The present invention is a method for encapsulating active protein in a polymeric nanocarrier. The instant method employs homogenization at subzero temperatures so that enzyme activity is retained. Enzymes which can be encapsulated by the present method include, for example, antioxidant enzymes and xenobiotic detoxifying enzymes. Encapsulation of an enzyme protects it from protease degradation and increases therapeutic half-life. Advantageously, polymeric nanoparticles of the invention are permeable to enzyme substrates and therefore enzymes encapsulated by the instant method can exert their effect without release from the nanocarrier. Methods for decomposing a reactive oxygen species, protecting against vascular oxidative stress, and detoxifying a xenobiotic are also provided.
Owner:THE TRUSTEES OF THE UNIV OF PENNSYLVANIA
Lactobacillus plantarum with oxidation resistance and application thereof
ActiveCN109182162AGood probiotic propertiesAvoid damageCosmetic preparationsMilk preparationIntestinal wallsSide effect
The invention discloses lactobacillus plantarum with oxidation resistance and preservation number of CGMCC15780, and application of the lactobacillus plantarum. The lactobacillus plantarum is a lactobacillus strain with high oxidation resistance, which is screened from traditional fermented yak yogurt and silage in the Qinghai-Tibet Plateau. In vivo and in vitro tests prove that the lactobacillusplantarum has relatively good oxidation resistance, and can be used for effectively promoting increase of the activity of antioxidative enzyme in a body. The lactobacillus plantarum having relativelygood hydrophobic performance can increase the opportunity of adhering to the intestinal walls and achieving the probiotic effect, does not have toxic or side effect, and can be used as health-protecting foods or medicines to enhance the body immunity, relieve senescence, beautify, regulate intestinal flora and the like.
Owner:哈尔滨美华生物技术股份有限公司
Ultra-fine fruit-vegetable nutrient mungbean noodle and preparation method thereof
Owner:INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
Oxidation resistance zymolyte rich in pollen active peptide
InactiveCN101058600AWide variety of sourcesHas antioxidant functionHydrolysed protein ingredientsPeptidesFood additiveFiltration membrane
The invention discloses an oxidation resistance enzymolysis substance containing a pollen active peptide, which comprises the following steps: breaking the bee pollen wall; adding 8-25 times deionized water after defatting; adjusting pH to 6-10; heating at 30-60 DEG C; adding to prolease in order to the enzymolysis reaction; controlling the temperature at 20-80 DEG C; mixing 30-180 min in the insulation condition; heating quickly at more than 80 DEG C, when the enzymolysis reaction gets to the reduction of the protein content; mixing 10-30 min in the insulation condition; stopping the enzymolysis reaction; reducing the ambient temperature quickly; separating the supernatant from the solid-liquid; separating with the hyperfiltration membrane of intercepting the relative molecular mass > 10000D; separating the filtering solution with the hyperfiltration membrane and the nano filtration membrane of intercepting the relative molecular mass < 400D; drying the filtering liquor. The invention acquires the function of oxidation resistance, which develops the potentiality greatly and applies the prospect well.
Owner:BEE RES INST CHINESE ACAD OF AGRI SCI
Uniform field magnetization and targeting of therapeutic formulations
Systems and methods for magnetic targeting of therapeutic particles are provided. Therapeutic particles comprise one or more magnetic or magnetizable materials and at least one therapeutic agent. Therapeutic particles are specifically targeted using uniform magnetic fields capable of magnetizing magnetizable materials, and can be targeted to particular locations in the body, or can be targeted for capture, containment, and removal. Therapeutic particles can comprise antioxidant enzymes, and can be targeted to cells to protect the cells from oxidative damage.
Owner:THE TRUSTEES OF THE UNIV OF PENNSYLVANIA +1
Rose extract and its application
InactiveCN1410111AImprove disease resistanceGood inhibitory effectAntinoxious agentsUnknown materialsDiseaseGallic acid ester
An extract of Rosa rugosa Thunb is disclosed, and contains rose extract (30%) which contains polyose (84.74%), protein (8.57%) and gallic acid derivative (6.69%). It plays such roles as suppressing erythrocyte haematolysis by 100% and peroxidization of tissue lipid by more than 90% and increasing the activity of antioxidant enzyme. It can be used to prepare antioxidant for preventing and treatingdiseases and increasing immunity.
Owner:NANKAI UNIV
Thellungiella salsuginea transcription factor EsMYB41 for controlling plant anthocyanin synthesis and encoding gene and application thereof
InactiveCN110066326AEasy to synthesizeImprove antioxidant capacityPlant peptidesFermentationNicotiana tabacumWild type
The invention belongs to the technical field of agricultural biology, and particularly relates to a thellungiella salsuginea transcription factor EsMYB41 for controlling plant anthocyanin synthesis and an encoding gene and application thereof. The amino acid sequence of the thellungiella salsuginea transcription factor EsMYB41 for controlling plant anthocyanin synthesis is shown in SEQ ID No.1. Byconstructing an EsMyb41 containing over expression vector, tobacco and arabidopsis are transferred, and EsMYB41 transgenic tobacco and arabidopsis are obtained; results find that the transgenic planthas the almost whole-plant claret-colored phenotype; the anthocyanin content of different tissues of transgenic plants and the expression of the anthocyanin synthesis structure gene are both remarkably higher than the wild type, and meanwhile under the salt stress, the anti-oxidase capability of the transgenic plant is improved remarkably.
Owner:SHANDONG NORMAL UNIV
Intelligent nano delivery system, preparation method and application thereof
The invention discloses an intelligent nanoparticle drug release system capable of delivering biomacromolecules and small organic molecules to cells, a preparation method of the intelligent nanoparticle drug release system, and application of the intelligent nanoparticle drug delivery system in cell delivering of biomacromolecules and small organic molecules (including drugs). By delivering biochemical substances of drug molecules, cell nutrients and cell expellant, physiological metabolism and pathological metabolism are intervened. Molecule delivery of an embodiment of the intelligent nanoparticle drug delivery system includes but is not limited to the following molecules: telomerase cell delivery; antioxidant enzyme (such as SOD (superoxide dismutase) and HPX (hydrogen peroxidase)) cell delivery; cancer suppressor protein (such as p53 and PTEN(phosphatase and tensin homolog deleted on chromosome ten)) cell delivery; and organic chemical and biochemical small molecules (such as atorvastatin-lipitor and coenzyme Q-10) cell delivery. The molecule slow release and control of the nanoparticle drug delivery system has uniqueness and targeting so that the nanoparticle drug delivery system is intelligent.
Owner:北京圣琳贝嘉医药科技有限公司
Method for improving antioxidant enzyme activity of ryegrass under drought conditions
InactiveCN101869032AImprove drought resistanceEliminate or reduce harmClimate change adaptationOrganic fertilisersOxygenase activityAntioxidative enzyme
The invention relates to a method for improving antioxidant enzyme activity of ryegrass by adopting fine domestic garbage compost under drought conditions. The method comprises the following steps of: uniformly scattering garbage trace fertilizers with grain diameters of 1,200 nanometers, 600 nanometers and 300 nanometers respectively on the surface of soil, wherein the weight part ratio of the grain diameter to the soil is 1: 60-80; then, sowing 0.5 gram of tall fescue, controlling the temperature to be between 20 and 26 DEG C and relative humidity to be between 40 and 60 percent, and illuminating the tall fescue with indoor natural light; and fully watering the tall fescue at the initial sowing stage, weighing the water in an amount which is 55 to 65 percent of the field holding amount every day or every two days after two weeks to maintain the water in a stress range, and measuring each index on the 44th day. The method provides technical support for applying the fine-grain urban domestic garbage compost to a lawn planting system.
Owner:TIANJIN NORMAL UNIVERSITY
Preparation of soybean anti-fatigue biological active peptide
InactiveCN103343154AAvoid damageImprove antioxidant enzyme activityAntinoxious agentsPeptide preparation methodsNeutral proteaseFreeze-drying
The invention discloses preparation of a soybean anti-fatigue biological active peptide, belonging to an extraction processing technology of plant protein. The method comprises the following steps: adding water in high-denaturation soybean meal serving as a raw material to prepare a mixed solution; performing ultrasonic preprocessing on the mixed solution; adding neutral protease into the processed mixed solution to perform enzymolysis so as to obtain enzymatic hydrolysate; performing ultrafiltration treatment on the enzymatic hydrolysate by using a membrane separation technology after the enzymolysis to obtain biological active peptide with high peptide content and molecular weight of less than 5 kDa; then performing separation and purification by using anion exchange chromatography and reversed-phase high-performance liquid chromatography; and finally performing freeze drying to obtain the soybean anti-fatigue biological active peptide. The soybean anti-fatigue biological active peptide prepared by the preparation method disclosed by the invention has higher autioxidant enzyme activities and lower malondialdehyde (MDA) content after movement of a mouse; and results show that the soybean peptide has the functions of reducing cell injury caused by lipid oxidation to have an anti-fatigue effect by removing free radicals produced in the body and inhibiting the generation of lipid peroxides.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY
Method for producing organic selenium-enriched lactic acid bacteria
InactiveCN103805537AImprove performanceImprove and enhance functional activityBacteriaBacteria material medical ingredientsHepatic fibrosisAntioxidative enzyme
The invention relates to the field of biology and in particular discloses a method for preparing organic selenium-enriched lactic acid bacteria. The method is characterized by comprising the following steps: a, inoculating lactic acid bacteria to a culture medium in a conventional mode, and performing culture amplification for 24-36 hours; b, adding a sodium selenite solution with the mass concentration of 5-8 percent into fermentation liquor in the step a, so that the selenium content of the fermentation liquor is 30-90mg / L, and continuously culturing at a constant temperature for 24-36 hours; and c, centrifuging the bacteria liquid obtained in the step b, washing for 5 times by using stroke-physiological saline solution, centrifuging, removing the supernatant, and obtaining the organic selenium-enriched lactic acid bacteria preparation. According to the production method, the oxidation resistance and the immunologic function of the normal organism can be improved, the lipid peroxidation reaction of hepatic fibrosis cells is intervened, and particularly, the advantages of an antioxidant enzyme activity system are obviously improved.
Owner:QINGDAO ANBEIKANG BIOLOGICAL MEDICINE TECH CO LTD
Skin beautifying composition based on collagen structure, enzyme inhibition and oxidative stress as well as preparation method
InactiveCN113040387AAchieve whiteningAchieve antioxidantDough treatmentFood shapingEnzyme inhibitionNutrition
The invention is applicable to the technical field of nutritional health-care food, and provides a skin beautifying composition based on a collagen structure, enzyme inhibition and oxidative stress as well as a preparation method. The skin beautifying composition comprises an anti-sugar and anti-aging component, an anti-enzyme activity component and an anti-oxidative stress component, wherein the anti-sugar and anti-aging component comprises 0.01-0.15 part of sodium hyaluronate and 1-5 parts of collagen peptide, the anti-enzyme activity component comprises 0.01-0.5 part of a pomegranate extract and 0.005-0.25 part of N-acetylneuraminic acid, and the anti-oxidative stress component is prepared from 0.06-0.3 part of a grape seed extract and 0.02-0.1 part of strawberry seed powder. The composition disclosed by the invention can improve skin problems such as external aging saccharification, wrinkles, dark skin color and melanin accumulation, continuously regulate biological metabolism of an internal body, enhance the activity of antioxidant enzyme, inhibit oxidative stress reaction, eliminate the level of active oxygen, prevent UV (ultraviolet) damage, increase cell viability and repair power, and protect the dermis layer to achieve the effects of skin whitening, oxidation resistance and aging resistance.
Owner:良品铺子营养食品有限责任公司
Preparation method of codfish skin collagen peptide
InactiveCN111118094AIncrease contentReduce contentConnective tissue peptidesPeptide preparation methodsHydroxyprolineUltrafiltration
The invention relates to the technical field of collagen extraction, in particular to a preparation method of codfish skin collagen peptide. The method comprises the following steps: mixing codfish skin with water, and performing extraction at 90-95 DEG C for 2-2.5 hours to obtain a mixed material; adding trypsin for enzymolysis, wherein the mass percent of the added trypsin is 4%-5.5%, and the enzymolysis time is 2-3 h; performing inactivating and centrifuging to obtain a supernatant; performing decolorizing and deodorizing with activated carbon, and performing filtration with a plate frame to obtain a decolorized solution; and performing filtration by an ultrafiltration membrane, and then carrying out ion exchange, concentration and freeze drying to obtain the cod skin collagen peptide.According to the method disclosed by the invention, the extraction rate of the collagen peptide can reach 94%-95%. The molecular weight is mainly below 1000Da, and the content is as high as more than80%. The collagen peptide is mainly composed of a polypeptide mixture containing 2-10 amino acids, and can remarkably increase the content of hydroxyproline and collagen in the skin of a model mouse,enhance the antioxidant enzyme activity in human blood and achieve the effect of delaying senescence.
Owner:CHANGCHUN UNIV
Prebiotic composition and application thereof
InactiveCN110755345AImprove antioxidant enzyme activityInhibit peroxidationCosmetic preparationsToilet preparationsBiotechnologyAntioxidative enzyme
The invention discloses a prebiotic composition and an application thereof. The prebiotic composition is prepared from the following components in parts by mass: 5 to 15 parts of a dendrobium officinale extract, 0.5 to 2 parts of ribose and 0.5 to 2 parts of beta-glucan. The invention provides the prebiotic composition which comprises the dendrobium officinale extract, ribose and beta-glucan, anddendrobium officinale has the effects of scavenging free radicals, improving antioxidant enzyme activity and inhibiting lipid peroxidation, and protecting a biological membrane. The prebiotic composition is synergistically compounded, so that nutrients can be provided for probiotics on the surface of the skin; meanwhile, the number of beneficial bacteria of the skin can be increased, the growth ofharmful bacteria can be inhibited, active oxygen free radicals on the surface of the skin can be removed, the skin problem caused by micro-ecological imbalance of the skin is further solved, self-repairing is conducted on cells, the skin barrier is enhanced, the content of hyaluronic acid in the skin can be increased, and the effects of moisturizing and strengthening a barrier are achieved.
Owner:DOCTOR PLANT GUANGDONG BIOTECHNOLOGY CO LTD
Research of influence of heavy-metal cadmium stress on murraya paniculata
InactiveCN109121988ACapable of extracting and enrichingIncrease vitalityCultivating equipmentsCell membranePlant cell
Owner:HONGHE COLLEGE
Compositions and methods for counteracting effects of reactive oxygen species and free radicals
InactiveUS20050090446A1Restore age-related reductionAntioxidative activityPeptide/protein ingredientsAntinoxious agentsDietary supplementAntioxidative enzyme
Peptide compounds and methods for upregulating expression of a gene encoding an antioxidative enzyme, such as superoxide dismutase or catalase, to counteract harmful oxidative effects of reactive oxygen species and other free radicals are described. The peptide compounds may be used to treat or prevent diseases and conditions characterized by undesirable elevation of reactive oxygen species and other free radicals, to upregulate AP-1 gene expression, and to treat pain. The peptide compounds may be used as components of pharmaceuticals and dietary supplements.
Owner:ISCHEMIX
Cotton seed germination promoter
InactiveCN106259440AImprove disease resistanceImprove germination rateBiocidePlant growth regulatorsSeed dormancyAdditive ingredient
The invention provides a cotton seed germination promoter, which is prepared from the following ingredients in percentage by mass: 0.1 to 1.0 percent of chitosan, 0.1 to 0.3 percent of calcium chloride, 0.002 to 0.008 percent of gibberellins and the balance water. After the promoter is diluted, seed soaking is performed. The chitosan is used for improving the activity of various antioxidases in a plant body; the production of various plant pathogenic microorganisms is inhibited; the plant disease-resistant capability is enhanced; the damage of low-temperature threatening and draught threatening to the plant is relieved; the seed dormancy is broken through addition of gibberellins; the effect of promoting the seed germination and young seedling growth can be achieved; the low-temperature injury of seeds in the germination period is relieved; the germination rate of the seeds in adverse environment can be obviously improved; meanwhile, the nutrition elements required by the plant growth and development are increased by using the calcium chloride; each aspect of the plant growth and development is regulated; the content of calmodulin can be improved; the seed activity is enhanced; the emergence rate and the stocking rate of the cotton seeds in low-temperature cold damage environment are finally improved.
Owner:滁州恒盛农业科技有限公司
Antioxidant enzyme crosslinking polyhemoglobin and preparation thereof
InactiveCN101357940ALow autoxidation rateImprove antioxidant capacityHaemoglobins/myoglobinsPeptide preparation methodsCross-linkAutoxidation
The invention relates to a blood substitute and discloses poly hemoglobin cross-linked with antioxidase, and the poly hemoglobin is formed by chemically cross-linking superoxide dismutase and catalase. The poly hemoglobin cross-linked with the antioxidase has lower autoxidation rate and stronger oxidation resistance, can resist exogenous oxidants, does not need cross matching and laboratory detection during the application and has extensive applicability.
Owner:SHANGHAI BLOOD CENT
Wheat low temperature-resistant conditioning agent and application method thereof
InactiveCN107347917AEnhance the ability to resist cold damageImprove anti-bacterial abilityBiocidePlant growth regulatorsCell membranePotassium
The invention discloses a wheat low temperature-resistant conditioning agent and an application method thereof. The wheat low temperature-resistant conditioning agent comprises the following components in parts by weight: 18-27 parts of melatonin, 13-19 parts of potassium humate, 12-17 parts of a-naphthylacetic acid, 8-14 parts of jasmonic acid, 6-14 parts of phytohormone brassinolide, 3-7 parts of cytokinin, 2-8 parts of an antifreeze, 0.3-0.7 parts of antibacterial peptide, 1-5 parts of a dispersant, and 20-30 parts of water. The wheat low temperature-resistant conditioning agent has the beneficial effects that the conditioning agent takes water as a medium, has obvious environment benefit and social benefit, can increase the security; protects a cell membrane, stabilizes the structure of biomacromolecules such as antioxidant enzyme, enhances capability for effectively removing ROS by cells, reduces intracellular water potential and ice point, and enhances the anti-pathogen capability of the wheat; the active ingredient source is abundant, the active ingredient is regenerable, is easily degraded in natural environment, has the characteristics of low cost and convenient usage, and conditioning agent has the advantages of easy popularization and application.
Owner:兰溪市哥特生物技术有限公司
Aqueous Composition For Raising Antioxidant Enzyme Activities And Enhancing Cell Membrane-Stability In Plants Exposed To Low Temperature
Present invention provides an aqueous composition made from selected biochemical substances that will help with the low temperature tolerance of plants and thus to avoid “chilling injury” and to promote better recovery from such injury, when the solution is applied to crop plants prior to the arrival of cold snap or period of low temperature.
Owner:CH BIOTECH R&D
Application of leonurine in preparation of medicines used for preventing and treating parkinson disease
InactiveCN102475699AProtectiveOptimize quantityOrganic active ingredientsNervous disorderSuperoxideAntioxidative enzyme
The invention belongs to the traditional Chinese medicine pharmacy field, and relates to an application of leonurine SCM198 in preparation of medicines used for preventing and treating parkinson disease. According to the invention, neurotoxin 6-OHDA induces damage of nerve cells in rats, the result shows that leonurine SCM198 is capable of improving behavior changes of PD model rats, increasing the survival rate of damaged nerve cells, raising antioxidant enzyme superoxide dismutase activity, minimizing excessive generation of active oxygen species, stabilizing mitochondrial membrane potential, minimizing apoptotic cells and regulating the change level of Bax and Bcl2 gene and protein. The result proves that the leonurine SCM198 has protection effect on a PD model, and can be used for preparing medicines for preventing and treating PD.
Owner:FUDAN UNIV
Lactobacillus plantarum with protection function on stroke
The invention provides a lactobacillus plantarum AR113 strain with a protection function on stroke. The lactobacillus plantarum AR113 is preserved in the China General Microbiological Culture Collection Center on March 22, 2017, and the preservation number is CGMCCC No.13909. By adopting the lactobacillus plantarum AR113 strain provided by the invention is capable of improving antioxidant enzyme activities of brain tissue, reducing levels of oxidation products, activating Nrf-ARE signal channels, regulating relative expression amounts of antioxidation factors Nrf2, NQO01 and HO-1, meanwhile, reducing miRNA (micro ribonucleic acid) expression of apoptosis-promoting factors Cyt-C, Caspase-3 and Bax, increasing relative expression of an anti-apoptosis factor Bcl-2, and furthermore, relievingbran cell damage caused by cerebral ischemia reperfusion.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Ammonium gluconate preparation capable of improving salt stress resistance of crops as well as preparation method and application thereof
ActiveCN108424318AImprove resistance to salt stressImprove germination rateAmmonium salt fertilisersLiquid fertilisersCell membraneGluconic acid
The invention provides an ammonium gluconate preparation capable of improving salt stress resistance of crops as well as a preparation method and application thereof. The ammonium gluconate preparation takes water as a solvent, and each liter of water contains 1.0 to 5.0 g of ammonium gluconate. The ammonium gluconate preparation provided by the invention can increase the germination rate of seeds, increase the fresh weight of the plants and enhance the enzyme activity of antioxidant enzyme under salt stress, maintains the stability of cytomembrane, increases the chlorophyll content of leaves,reduces the Na<+> content of the leaves and greatly enhances the salt resistance of seedlings; the ammonium gluconate preparation provides a nitrogen source and a carbon source simultaneously, can obviously promote the growth of crops, and can relieve soil degradation caused by reduction of soil organic carbon when being used as a fertilizer component.
Owner:JINAN JINNIU BIOTECH CO LTD
Method for preserving fresh dates at normal temperature
InactiveCN102657258AEliminate infestationReduce conversion rateFruit and vegetables preservationVitamin COxidative enzyme
The invention discloses a method for preserving fresh dates at normal temperature. The method mainly comprises the following steps of: carefully selecting the fresh dates, soaking the fresh dates in 70 to 80 percent of alcohol for 20 to 40 seconds or in 2 to 4 percent of sodium hypochlorite for 1 to 3 minutes, soaking the treated fresh dates in a preservative consisting of sodium nitroprusside, calcium chloride, tween 80 and water for 1 to 3 hours, fishing out the fresh dates, spreading in a thin and flat mode, air-drying, putting into a porous preservation bag, sealing, placing in a cool place, and storing at normal temperature. The method is low in preservation cost, and is economical, practical, safe and stable; during storage, the reddening rate and rotting rate of the fresh dates andthe content of soluble sugar and ethylene are reduced, and the content of vitamin c (Vc) and the activities of antioxidase, superoxide dismutase (SOD), catalase (CAT) and polyphenol oxidase (PPO) areimproved; and the storage period of the fresh dates is prolonged by 7 to 8 days.
Owner:SHANXI AGRI UNIV
Lactobacillus fermentum JX306 with antioxidant function, and application thereof
ActiveCN110684697AHigh activityInhibition of pathological damageMilk preparationBacteriaBiotechnologyDPPH
The invention discloses lactobacillus fermentum JX306 with an antioxidant function and application thereof, and belongs to the technical field of bioengineering. The lactobacillus fermentum JX306 hasa high DPPH free radical and hydroxyl radical scavenging ability, high reducing power, a high Fe2+ chelating ability, a favorable anti-lipid peroxidation ability, and favorable bile salt tolerance, gastrointestinal fluid resistivity and hydrogen peroxide tolerance; and the glutathione peroxidase activity can be remarkably improved, the malondialdehyde level is reduced, the levels of five antioxidant enzymes such as TR3, Prdx1, Gsr, Gpx1 and a nuclear transcription factor Nrf2 are remarkably improved, and the D-gal induced histopathological lesion can be remarkably relieved. The lactobacillus fermentum JX306 provided by the invention plays a big role on improving the oxidation resistance of food with the lactobacillus fermentum JX306 as a fermenting microbe, and has a wide application prospect.
Owner:SHANDONG AGRICULTURAL UNIVERSITY
Preparation method for novel red blood cell substitute-artificial red blood cell fluorescent nanoparticles
InactiveCN102370993AAIDS freeImprove stabilityPeptide/protein ingredientsMacromolecular non-active ingredientsWhole blood productRed blood cell
The present invention discloses a preparation method for a novel red blood cell substitute-artificial red blood cell fluorescent nanoparticles. According to the present invention, a cross-linking technology is adopted to carry out a cross-linking reaction for hemoglobin (Hb), catalase (CAT), superoxide dismutase (SOD) and carbonic anhydrase (CA) to generate a polyHb-SOD-CAT-CA complex body, wherein the cross-linking technology is performed by a bifunctional reagent glutaraldehyde; the polyHb-SOD-CAT-CA complex body is further embedded by polylactic acid and polyethylene glycol copolymer (PLA-PEG) nanoparticles. With the present invention, the antioxidase of the SOD and the CAT in the complex body can eliminate the oxygen free radicals generated during the blood transfusion process, such that the ischemia-reperfusion injury easily generated during the blood replacement process can be avoided; with the CA, the red blood cell substitute of the present invention has oxygen carrying performance and carbon dioxide transportation performance; with the PLA-PEG microcapsule embedding, the half life period of the artificial blood product can be prolonged, the biocompatibility of the artificial blood product can be increased.
Owner:王革 +2
Lactobacillus mucosae with anti-aging function
The invention discloses novel lactobacillus mucosae CCTCC NO:M 2015581 with high anti-oxidation activity. The lactobacillus mucosae is separated from faeces of healthy and longevous old people, is gram-positive bacteria, has very high free radical scavenging capacity, can improve the activity of antioxidant enzymes in a living body, can delay aging, has excellent bile salt resistance and can be developed into a micro-ecological microbial agent and used as a food additive to improve the gastrointestinal tract of a host.
Owner:NANCHANG UNIV
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