1635 results about "Antioxidant capacity" patented technology

The invention relates to a composite fresh flower, fruit, vegetable and herb enzyme, and a preparation method and application thereof, and belongs to the technical field of biological medicines. According to the composite fresh flower, fruit, vegetable and herb enzyme, dozens of kinds of common fruits, vegetables, grains, fresh flowers and edible medicine herbaceous plants are adopted as raw materials to comprehensively supplement nutrients, microbes, trace elements and dietary fiber required by bodies; through addition of the fresh flowers, the fresh flower, fruit, vegetable and herb enzyme provided by the invention has the fragrance of the flowers and contains plant anthocyanidin; anthocyanidin substances are plant antioxidants which are high in property; in an enzyme high-acidity solution, anthocyanidin can be well extracted and released, so that the oxidation resistance of the enzyme is improved; most of the edible medicine herbaceous plants have the efficacies of improving immunity and reducing blood fat, blood sugar and blood pressure; through addition of probiotics, polysaccharides and functional ingredients of the herbaceous plants can be completely extracted out, so that the health efficacy of the enzyme is improved. The preparation method for the enzyme is simple, and the problems of pollution and odd flavor generation in the layer-by-layer fermentation process can be effectively solved.

The methods of the invention can be used to protect against lymphocyte DNA damage and free-radical associated disorders in a subject. The methods of the present invention can be used to increase the antioxidant capacity in both the aqueous and lipid compartments, decrease DNA oxidation, decrease lipid peroxidation, and increase antioxidant nutrient levels in the circulation. The protective effect of the physiologic dose of the mixed carotenoid supplement is rapid, consistent and cumulative.

The present invention provides a performance assay that measures the total antioxidant activity of a composition using oxygen uptake in contrast to prior art methods that measure antioxidant capacity by indirectly measuring degradation of a fluorescent compound by following the disappearance of fluorescence. Using the performance antioxidant assay of the present invention, an antioxidant composition having synergistic activity is provided by the present inventors that includes flavonoids such as the flavonol quercetin, mixed tocopherols or tocotrienols, grape skin extract, green tea extract and bush plum. The antioxidant activity of the present composition exceeds 6,000 micromoles Trolox equivalent units per gram using the present invention.

A method of assaying the antioxidant capacity of a sample, the method including preparing an extraction solution including a solubility enhancing compound, adding the sample to the extraction solution, extracting the antioxidants present in the sample, adding a fluorescent probe to the extract, adding a free radical generator to the extract, detecting the fluorescence intensity decay of the probe in the presence of the sample over time, and calculating the antioxidant capacity of the sample based on the fluorescence intensity decay of the probe in the presence of the sample.

Extracts prepared from red and high-pigment beetroots (Beta vulgaris L.) with a solvent, such as a water-containing solvent, possess antioxidant activity as demonstrated by a panel of assays. These extracts also have an ability to induce quinone reductase in Murine hepatoma cell (Hepa 1c1c7) cultured in vitro. Fractions purified from the active extracts also possess antioxidant activity and retain quinone reductase-inducing activity in the Hepa 1c1c7 cell line. The active extracts, purified by column, thin layer, and high-performance liquid chromatographic techniques, include betalains. A method of extracting a betalain includes steps of freeze-drying a source containing the betalain; grinding the freeze-dried source; and extracting the betalain from the ground source with the solvent. Additionally, the betalain extract can be isolated betalain components, such as by chromatography.

A SiCf / SiC ceramic-based composite material with composite interfaces is characterized by comprising CVD-SiC coating, a PIP-SiC matrix, the composite interfaces and SiC fiber, wherein the CVD-SiC coating is silicon carbide coating prepared through a chemical vapor deposition method, and has the thickness of 100-500 microns; the composite interfaces are formed by alternately and periodically overlapping any two or three of a BN interface, a ZrO2 interface, an LaPO4 interface and an SiC interface, and the cycle period frequency is 3-5 times; the PIP-SiC matrix is silicon carbide formed through in-situ pyrolysis of polycarbosilane; the SiC fiber accounts for 40-60% of the composite material by volume, a pyrolytic carbon layer with the thickness of 5-20 nanometers is formed on the surface thereof. A preparation method comprises the following steps: preparing multiple layers of composite interfaces on the surface of the silicon carbide fiber by different preparation processes, then fillingthe SiC matrix by a PIP method, and finally preparing the surface SiC coating by a CVD method. The SiCf / SiC ceramic-based composite material prepared through the preparation method provided by the invention is high in toughness and strong in antioxidant capacity, and the preparation process is simple.

The invention provides metal ion modified black phosphorus as well as a preparation method and an application of the metal ion modified black phosphorus. The preparation method comprises the following steps of placing black phosphorus raw materials in a metal ion organic solution, performing impregnating under the temperature of 0-50 DEG C for 5min to 2h, and then performing blow-drying under protective gas so as to prepare the metal ion modified black phosphorus. The invention further provides the metal ion modified black phosphorus prepared by the preparation method, and the application of the metal ion modified black phosphorus in thin-film transistor materials, battery negative electrode materials, flexible display materials, light emitting diode materials, optical switch materials and biosensor materials. The metal ion modified black phosphorus provided by the invention can utilize the metal ions to improve the structural stability and the property stability of the black phosphorus in the existence of water and oxygen gas under the condition of being not changing the intrinsic attributes of the black phosphorus, so that the antioxidant ability of the black phosphorus is improved.

The invention relates to the technical field of bioactive peptides, in particular to a casein-derived antioxidant peptide mixture. Casein is hydrolyzed with protease, various pre-products of the casein antioxidant peptide are obtained, then separation, desalination and concentration are performed through ion exchange column chromatography, and the casein antioxidant peptide rich in basic amino acid is obtained. The casein antioxidant peptide has higher cell antioxidant capacity and low-density lipoprotein oxidation inhibition capacity and can still keep good antioxidant capacity after being digested and absorbed by gastrointestinal tracts, so that the casein antioxidant peptide rich in basic amino acid can be applied to fields of food and healthcare products and has very high social and economic benefit.

The invention belongs to the technical field of material chemistry, relates to conductive ink, and particularly relates to nano copper-tin alloy conductive ink and a preparation method and usage of the nano copper-tin alloy conductive ink. Nano copper-silver alloy is replaced by nano copper-tin alloy to be used as conductive filler in the conductive ink, sintering temperature of the conductive ink is lowered, and when the nano copper-tin alloy conductive ink is compared with nano copper-silver alloy conductive ink, antioxidant capacity of the conductive ink during sintering is improved, mechanical property and solderability of a conductive circuit formed after sintering of the conductive ink are improved, and the problem of silver ion migration is avoided. Further, since rare earth metal elements are doped in the nano copper-tin alloy, grain boundary of the nano copper-tin alloy is increased, electron scattering power is increased, and conductivity is improved as compared with that of nano copper alloy. On the other hand, tin is much cheaper than silver, so that raw material cost of the nano copper-tin alloy conductive ink is reduced.

The invention discloses a composition containing a haematococcus extract and a collagen peptide. The composition is prepared from the following components in part by weight: 1 to 20 parts of haematococcus pluvialis extract, 1 to 10 parts of collagen peptide and 1 to 90 parts of safflower seed oil. The invention also discloses a preparation method for the composition. Natural astaxanthin in the haematococcus pluvialis extract has the ultrahigh oxidation resistance, ensures the normal metabolism of skin, inhibits the generation of melanin and enhances the effect of collagen; the absorption rate of the collagen peptide is between 95 and 100 percent; the collagen peptide can improve the metabolism of skin cells effectively, and can be utilized by the skin cells more easily, so that the activity of the collagen in the skin is enhanced, and the aims of preserving moisture, resisting wrinkles and nourishing the skin are fulfilled; and due to the addition of the safflower seed oil, the composition contains linoleic acid with high content and vitamin E and can prevent the oxidative deterioration of the astaxanthin, an antioxidant is not needed to be added, and the quality guarantee period can be prolonged by one time.

The invention relates to a duck wheat anti- oxidizing health- care wine, which is prepared by adding flavone extract in duck wheat- based wine. The detail process is as follows: extracting brewer's by-products with edible alcohol, condensing filterate and recovering solvent; absorbing condensed liquid with large- porous resin, washing with water and edible alcohol, collecting washing liquid, condensing and drying and getting brewer's by-products flavone extract; adding brewer's by-products flavone extract into wheat- based wine, heating for dissolution, blending and getting duck wheat anti- oxidant health- care wine. The ability to remove DPPH free residue and anti- oxidizing are increased by more than 8.1 and 33.3 times compared with original wheat- based wine, and the anti- oxidizing performance is distinctive.

The invention provides a method for preparing a traditional Chinese medicine fruit and vegetable enzyme beverage, and relates to the food field. The method comprises the steps: mixing a fruit and vegetable mixture with rock candy according to the mass ratio of 3:(0.5-1.5), placing the mixture in a fermentation tank, and in a sealed state and under a condition of the temperature of 2-30 DEG C, fermenting for 160-200 days, to obtain a fruit and vegetable fermented liquid; mixing the fruit and vegetable fermented liquid with a traditional Chinese medicine decoction liquid, inoculating with one or two or more of lactobacillus delbrueckii subsp.bulgaricus, lactobacillus plantarum subsp.plantarum, yeast and bifidobacterium animalis, and in a sealed state and at the temperature of 35-40 DEG C, fermenting for 3-8 days, to obtain the traditional Chinese medicine fruit and vegetable enzyme beverage. The medicine and food homology and mutual harmony and complementation effects are achieved; the obtained traditional Chinese medicine fruit and vegetable enzyme beverage has the advantages of high total phenol content, high DPPH(.) scavenging rate and high SOD enzyme activity, shows strong antioxidant capacity, can improve the human body gastrointestinal health-care functions, and can be used as a daily drinking health drink.

The invention relates to a titanium alloy surface high temperature oxidation resistance and wear resistance oxide gradient coat. According to the coat, the surface of the coat is an oxide film layer comprising Al2O3, Cr2O3 and NiO2, wherein the thickness is 4-6 mum; the middle of the coat is an Al-Cr-Ni alloy layer, wherein the thickness is 2-4 mum; and an Al-Cr-Ni-Ti interdiffusion layer is arranged between the coat and a substrate to achieve metallurgical collection, wherein the thickness of the Al-Cr-Ni-Ti interdiffusion layer is 4-6 mum. According to the present invention, the oxide film layer on the surface of the coat has characteristics of compactness, flatness and strong antioxidant capacity; the Al-Cr-Ni alloy layer in the middle of the coat has characteristics of compact structure and high hardness so as to greatly improve wear resistance of the titanium alloy; the metallurgical collection of the coat and the substrate is achieved through the Al-Cr-Ni-Ti interdiffusion layer, and the combination strength is high; and a double glow plasma surface metallurgy technology is adopted to prepare the Al-Cr-Ni alloy layer on the surface of the titanium alloy, and then a plasma oxygen permeation treatment is performed on the Al-Cr-Ni alloy layer to prepare the high temperature oxidation resistance and wear resistance coat, such that the efficiency is high, and the process is simple.

The absorption and deposition of carotenoids added to poultry diets into the yolk of eggs produced by the poultry is improved by adding a carotenoid formulation comprising a carotenoid, a vegetable oil, a surfactant, a chelating agent, an antioxidant, an alkali and a solvent. The carotenoid formulation can reduce the crystalline nature of lutein for its better dissolution in the formulation and the diet. This new formulation is capable of making more micelles for an effective transfer of lutein from the formulations to the aqueous layer. The new formulation can increase the bioavailability of lutein in chicken biological system and leads to more deposition in the blood and the egg. The lutein deposition in the egg was consistent for an extended period of time when this new formulation was added to the diet. Addition of this carotenoid formulation to the diet increased the antioxidant power of the blood. Eggs produced by poultry fed diets supplemented by the formulation have in excess of 0.80 mg carotenoids per 100 grams of edible portion and thus serve as an important source of carotenoids in the human diet.

The invention relates to a chelated liquid fertilizer containing multiple types of plant alcohols and medium trace elements, which is applied in the field of agriculture and forestry. The liquid fertilizer consists of the following main materials in parts by weight: 80-450 parts of soluble plant alcohols, 1-10 parts of calcium nitrate, 0.5-3.5 parts of zinc sulfate, 0.1-2.5 parts of manganese sulfate, 0.5-5 parts of magnesium sulfate, 0.1-2.5 parts of ferrous sulfate, 0.03-0.08 part of cobalt chloride, 0.01-0.05 part of ammonium molybdate and 0.2-1.0 part of boric acid. The pH value of the liquid fertilizer is adjusted to be neutral with slightly stronger acidity by adding an appropriate amount of water. The liquid fertilizer contains the multiple types of plant alcohols and has the capabilities of activating the biological activity of crops and enhancing the adsorption to the medium trace elements of the crops and the antioxidation of the crops; and the medium trace elements are capable of promoting the healthy growth of the crops and correcting the nutritional deficiency symptom of the crops. The liquid fertilizer has the characteristics of simple processing technology, low production cost, high fertilizer efficiency and the like; the liquid fertilizer is suitable to serving as a toot system and leaf top application for fruit trees, vegetables and field corps, and is particularly suitable to supplying medium trace element nutrition to the leaves or fruits during the late growth period of the fruit trees. The liquid fertilizer with multiple elements is extensive in application.

The invention relates to a method for preparing an antioxidant peptide through ultrasonic-microwave synergetic enzymatic hydrolysis. The method comprises the following steps: (1), preparing an enzymatic hydrolysis substrate; (2), adding an alkali protease for enzymatic hydrolysis; (3), carrying out ultrasonic-microwave assistant enzymatic hydrolysis; and (4), after enzyme inactivation, centrifuging and separating a reaction solution, taking supernatant, freezing and drying to obtain antioxidant peptide powder. The method has the advantages that the ultrasonic technology, the microwave technology and the enzymology biology technology are combined. Compared with the peptide prepared by the conventional method, no chemical reaction is carried out, the change rate of bioactive substances is reduced, the utilization rate of organic solvents is reduced, the enzymatic hydrolysis time is shortened after the ultrasonic-microwave assistant enzymatic hydrolysis is carried out, and a test proves that the antioxidant capacity of the salmon peptide is remarkably enhanced. The method is simple in process, can be used for industrial production and has higher economic and social benefits.

The invention provides a traditional Chinese medicine preparation for enhancing chick immunity and antioxidant capacity, relates to a traditional Chinese medicine additive for the health care, antioxidation and immunity enhancement of a chick, and comprises Astragalus root, Atractylodes macrocephaia, radix saposhinikoviae, lanceolata, poria cocos, tangerine peel, hawthorn, and Epimedium. The preparation method comprises the steps of making available raw ingredients, extraction, concentration, starch adding, drying and crushing. The appearance of patent medicine presents luteotestaceous powdery state, the granularity and the bulk density are uniform, the adhesiveness is strong when being added into feeds, and the colour and the luster are concordant without leading the feeds to be dyed and discolored. The traditional Chinese medicine preparation effectively reduces the chick morbidity, enhances the daily growing weight rising of the chickens and feed conversion rate, and has immunological enhancement effect and antioxidation effect.

The invention discloses a novel Bifidobacterium breve with excellent probiotic function. The Bifidobacterium breve strains are obtained by screening the feces of the long-lived elders in Hetian, XinJiang, and the obtained strains have outstanding resistance to acid and bile acid salts, adhesion characteristics to intestinal tract epidermic cells, excellent antibacterial performance and good oxidization resistance; and the strains have an effect on reducing the blood pressure as well as the edible safety, therefore, the Bifidobacterium breve can be widely applied in the fields such as functional additives, dairy products, beverage, functional food, drug production, etc.

The invention discloses a preparation method of multi-functional and lycopene-contained edible oil, which is simple in technique and can greatly improve the lycopene content in a cis structure and can result in a plurality of alimentary and sanitarian matters in the edible oil. The preparation method of the invention comprises the following steps: (I) firstly, oxidative factors removing: under inert gas atmosphere, removing the air or volatile impurities in the edible oil that can result in oxidation; (II) then, adding lycopene and at the same time heating to 100-200 DEG C, until the lycopene and the edible oil mixing evenly, and then cooling to the normal temperature; (III) adding other required alimentary and sanitarian matters after being cooled to the normal temperature. The edible oil prepared is well suitable for the Chinese food habits, the lycopene in which can be effectively absorbed by human body in the routine diet, so that people can fully utilize a plurality of functions of lycopene, such as antioxidant capacity, free radicals scavenging capacity and repairing cells, anti-aging, anticancer and cancer prevention and so on, thus makes positive effects to the health of human body.

The present invention refers to the use of extracts from selected and stabilised cell lines comprising phenylpropanoids with high anti-oxidant capacity having a verbascoside titre of between 20% and 90% and a chromophore-free fraction of between 80% and 10%, in human and veterinary medicine, and for nutritional and cosmetic purposes.

The invention relates to a rice bran soluble dietary fiber, a production technology and application thereof, and belongs to the field of comprehensive utilization and deep processing of grains. The production technology comprises the following steps: rice bran steam explosion pretreatment, enzymolysis, extraction, concentration, alcohol precipitation and drying. The obtained dietary fiber has higher water-holding capability, oil-holding capacity and expansive force, improves the physiological activity of reducing blood sugar, reducing cholesterol and oxidation resistance and the like, and can be widely applied to the fields of food, health care products and the like.

The invention discloses a wear-resistant and ageing-resistant PVC (polyvinyl chloride) reinforced hose pipe. The reinforced hose pipe comprises an inner pipe and an outer pipe, wherein the inner pipe and the outer pipe consist of the following raw materials in parts by weight: 100 parts of PVC, 2-3 parts of heat stabilizer, 25-30 parts of environment-friendly plasticizer, 5-8 parts of anti-freezing agent, 5-10 parts of anti-impact modifier, 2-3 parts of ultraviolet screening agent, 2-3 parts of pigment fillers, 4-6 parts of wear-resistant modifier and 1-3 parts of antioxidant. A preparation method of the reinforced hose pipe comprises the following steps of: 1) evenly mixing all the raw materials; 2) mixing-granulating; 3) extruding a PVC inner pipe body from a first extruder, cooling for shaping the inner pipe body, and drawing the inner pipe body; 4) winding the surface of the inner pipe body with polyester fibers, and then heating and drying the inner pipe body; and 5) extruding an outer pipe body from a second extruder, cooling for shaping the outer pipe body, and drawing the outer pipe body. The reinforced hose pipe prepared by the method has excellent mechanical performance and excellent antioxidant capability.

The invention relates to a production method of roxburgh rose fruit cake which comprises the following raw materials by weight percent: 35 percent of roxburgh rose fruit pulp, 15 percent of wild papaya, 5 percent of cherokee rose fruit pulp, 25 percent of glucose, 15 percent of white granulated sugar, 3 percent of agar, 1.9 percent of citric acid and 0.01 percent of sodium isoascorbate. The fruit pulp is prepared by selecting the raw materials, preparing the materials, dissolving sugar, filtering, decocting at low temperature, cooling and shaping, slicing and arranging on a disk, air flow drying at low temperature, packing and putting into warehouse. The product of the invention has unique flavor and flexible and brittle texture, is sweet, sour, smooth and delicious, improves organism functions, enhances antioxidant capacity, removes waste excretion in an organism, is a special health snack food containing abundant vitamin C and various nutrients, and has better market competitive strength.

The invention discloses a pet dog food used for health care of adult sterilized female dogs and a preparation method of the pet dog food. The pet dog food consists of the following raw materials in parts by weight: 30-50 parts of corn flour, wheat flour and soybean meal with the weight ratio being 2:1:1, 20-30 parts of fresh chicken, fresh beef, fish meal and bone powder with the weight ratio being 2:1:1:1, 5-15 parts of duck oil and deep sea fish oil with the weight ratio being 2:1, 1-5 parts of a composite additive, 1-5 parts of a traditional Chinese medicine composition and 0.5-1 part of salt. The pet dog food can promote the metabolism of blood lipid of the adult sterilized female dogs, improve the antioxidant capacity of bodies, protect the bone metabolism, reduce the incidence of obesity, cardiovascular disease and bone metabolic disorder, and improve the life quality of the adult sterilized female dogs.

The invention belongs to the fields of enzymology and pharmaceutical chemistry, and relates to the low molecular hyaluronate, preparation method and purpose thereof. Concretely, the preparation method comprises a degradation step of hyaluronic acid or salt thereof whose molecular weight is greater than 1000 kDa by hyaluronidase prepared by Bacillus spp whose preservation number is CGMCC No. 5744 or SEQ ID No:2 coded hyaluronidase. The preparation of low molecular hyaluronic acid or salts thereof by using hyaluronidase produced by Bacillus spp of the present invention has the advantages of simple operation, mild condition, non-destroy of the product structure and low cost. The product is suitable for large scale industrialized production. The low molecular hyaluronate prepared by the invention has the advantages of good transdermal absorbency, good purity, non-cytotoxicity, good antioxidation, etc., and can be used in the fields of cosmetic, foodstuff and medicine.

Novel food, dietary supplement and nutraceutical products containing phenol / protein complexes derived from vegetable sources have high antioxidant activity and very high levels of protein. The products provide novel means for administering high levels of plant antioxidants to human and mammals in the form of a protein concentrate. Due to their high antioxidant capacity these novel products are useful as aids in the prevention and treatment of many diseases.

A nanometer copper-protoxide coated with organic polymer, characterized in that the grain diameter of copper-protoxide particles is from 1 to 100nm, and that the surface is coated with organic polymer, range of weight ratio of copper-protoxide particle to organic polymer being 60-90: 0.1-18. In the water solution of organic polymer, and with alkali halide and alkali weak acid salt, deoxidize divalent nantokite with reducer, and separate the resultant, the reaction temperature of said reaction being from 10 to 100 Deg. C, reaction time from 1 to 8 hours, and PH of the reaction liquid from 5 to 7. The advantage of the nanometer copper-protoxide coated with organic polymer is that, manufacturing technique is simple, and facilitated to industrialization, at the same time, the easily-reuniting problem of nanometer particulars is settled; it has a good dispersity in anti-fouling paint, a strong power of oxidation resistance, extensive and strong antifouling ability, and cohesion to paint filming material to make perfect mechanical property of paint.