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135 results about "Dimerumic acid" patented technology

Highlights Dimerumic acid (DMA) is a novel antioxidant isolated from red mold rice. DMA effectively exerts antioxidation and hepatoprotection than other antioxidants. DMA inhibits cancer cell invasion mediated by attenuating oxidative stress. DMA has potential for development as a novel antioxidant for functional foods.

Screening method of safety and efficacy of skin antioxidants through use of a plurality of normal human skin cells

The invention discloses a screening method of safety and efficacy of skin antioxidants through use of a plurality of normal human skin cells. The screening method includes the following steps: (1) separation, culture and identification of normal human primary cells; (2) toxicity test of substances for testing; (3) preparation of the substances for testing and concentration determination of the substances for testing; (4) determination of ultraviolet-light induced radiation dose; and (5) verification of antioxidant effects of the substances for testing. The normal human skin cells are prepared through standardized culture in vitro, so that the normal human skin cells has strong division propagation capability, high degree of standardization, less difference among batches, and the same activity and functions as that in vivo. Results which are obtained through use of the normal healthy human skin cells are more reliable than the results obtained through use of animal or human cell lines. Through use of the screening method, toxic effects and antioxidant efficacy of the substances for testing can be evaluated in two aspects including a qualitative aspect and a quantitative aspect. The method, through replacement of the living animal and human skin, can be directly used for toxicity and efficacy tests of antioxidant substances in products including chemicals, cosmetics, pharmaceuticals and the like.
Owner:GUANGZHOU HUADAI BIOLOGICAL TECH CO LTD

Pig compound feed production method through recycling of poultry excrement

The invention discloses a pig compound feed production method through recycling of poultry excrement. The technology is high in recycling utilization degree, easy to realize large-scale industrialized production, facilitates recycling utilization of waste produced during poultry cultivation and solves two difficulties of environment contamination and shortage of pig feeding resource in the conventional poultry cultivation. According to the method, under the compound action of secondary fermentation of microorganisms, and cellulase, the fermentation wine mashes are added during fermentation and the poultry excrement is converted to the pig compound feed with high protein content, bright color and nice flavor; the pig compound feed is better in deodorization effect, and high in nutritional value; through the adoption of the multi-strain anerobic fermentation, the biological activity of the pathogenic microorganisms is restrained and the pathogenic microorganisms can be effectively restrained and killed by lactic acid generated by lactic acid bacteria, antibiotic matters generated by actinomycetes and antioxidant matters generated by other beneficial microorganisms, so that the pig compound feed is harmless and the feed products meet the feed hygienic standard; in addition, the method is simple in process and is easy to realize large-scale industrialized production.
Owner:QINGDAO JIARUI BIOLOGICAL TECH

Cordyceps-lucid ganoderma composition capable of improving immunity and preparation process thereof

Embodiments of the invention disclose a Cordyceps-lucid ganoderma composition capable of improving immunity. The Cordyceps-lucid ganoderma composition comprises the following effective components in parts by weight: 6 to 15 parts of Cordyceps militaris powder, 8 to 20 parts of ginseng, 35 to 70 parts of Maca, 3 to 10 parts of astaxanthin, 30 to 60 parts of proanthocyanidins, 5 to 10 parts of lycopene, 35 to 70 parts of lucid ganoderma spore powder and 20 to 50 parts of vitamin E. Embodiments of the invention also disclose a preparation process for the above-mentioned Cordyceps-lucid ganodermacomposition capable of improving immunity. According to the invention, eight antioxidant substances--ginseng, Cordyceps militaris powder, Maca, astaxanthin, proanthocyanidin, lycopene, lucid ganodermaspore powder and vitamin E are combined in a certain proportion, so complementary and synergistic effects of the antioxidant substances are exerted; the effect of antioxidation is good; and a plurality of functions of preventing occurrence of a variety of tumors, preventing leukemia, exerting protection effects on eyesight and the central nervous system, preventing obesity and gout, reinforcing immunity, preventing cardiovascular diseases, preventing oxidation and aging, maintaining reproductive function and the like of a variety of substances can be simultaneously exerted.
Owner:深圳地天国际生物工程科技有限公司

Composition for delaying senility and preparation technology of composition

The invention discloses a composition for delaying senility. The composition is prepared from the following components in parts by weight: 4 to 30 parts of collagen, 0.02 to 2 parts of haematococcus pluvialis, 0.01 to 0.5 part of tremella polysaccharides, 0.01 to 1 part of coniferous cherry powder, 0.1 to 2 parts of vitamin C, 3 to 10 parts of ingredients and 50 to 98 parts of purified water. According to the composition for delaying the senility, disclosed by the invention, all the components are synthesized, so that exogenous water-preserving antioxidant substances required by a human body can be supplemented and endogenous water-preserving antioxidant substances in the human body also can be increased; the interaction of exogenous and endogenous antioxidant substances is promoted to form a water-preserving antioxidant symbiotic ring, so that a comprehensive and effective synthetic effect in water-replenishing and anti-oxidation is produced; the composition is safe and reliable and has no toxic and side effects. A method for effectively detecting the content of the components in the composition is adopted, and especially the method for detecting the content of astaxanthin in a solution containing a protein sample has the advantages of simple operation, high sensitivity and wide application.
Owner:石家庄瑞大圣康生物科技有限公司

Method for evaluating antioxidant activity of antioxidant substance

The invention belongs to the field of biotechnology, and in particular relates to an evaluation method for the antioxidant activity of antioxidant substances. This evaluation method takes Saccharomyces cerevisiae as a model, inoculates and cultures Saccharomyces cerevisiae, and then adds oxidant oxidative stress culture to obtain the Saccharomyces cerevisiae oxidative stress model, which is the control group; adds the test sample to the inoculated Saccharomyces cerevisiae, and then adds oxidant oxidation stress culture. The stress culture was used to obtain the treatment group; the antioxidant activity of the test samples was evaluated by measuring and comparing the growth of Saccharomyces cerevisiae and the antioxidant index in Saccharomyces cerevisiae in the control group and the treatment group. The evaluation method provided by the invention is close to the actual system of living organisms, and is relatively sensitive. Taking the brewer's yeast as a model, it overcomes the shortcomings of long period, high cost and cumbersome experimental process. The present invention uses bacterial strain ATCC9763 as a model to establish an evaluation of antioxidant activity, and provides a research method for exploring the antioxidant activity of antioxidant substances in vivo.
Owner:SOUTHWEST UNIVERSITY

Preparation method of pickled vegetables with anti-oxidation function

The invention belongs to the field of foods, especially provides a preparation technology of pickled vegetables in the field of the foods, and in particular relates to the preparation method of pickled vegetables with an anti-oxidation function. The method includes the following steps: 1) performing treatment on raw materials; 2) adding a saline solution; 3) performing inoculation with lactococcuslactis PCYTY-13 and leuconostoc mesenteroides PCY-3R18, and performing primary fermentation; 4) performing inoculation with lactobacillus brevis PCYTY-7 and lactobacillus plantarum PC-170, and performing secondary fermentation; and 5) performing bagging, and performing vacuum impregnation. The method provided by the present application uses the lactic acid bacteria with antioxidant enzyme activity to regulate the fermentation of the pickled vegetables to prevent microorganisms from inhibiting metabolism mutually, after the fermentation is completed, the pickled vegetables are impregnated by using an antioxidant flavoring liquid in vacuum, so that the method can not only solve the lack of flavor caused by short fermentation time, but also increase the content of antioxidant substances in the product, and the final product is crisp and tender in texture, moderate in acidity, bright in color, rich in the antioxidant substances and stronger in activity.
Owner:SICHUAN DONGPO CHINESE PAOCAI IND TECH RES INST

Freeze-dried tear stain-removing staple food for pet cats and preparation method thereof

The invention provides a freeze-dried tear stain-removing staple food for pet cats, which comprises the following components in 100 parts by weight: 70-90 parts by weight of a main material, 2-5 parts by weight of cellulose, 1-5 parts by weight of vegetable oil, 1-10 parts by weight of krill oil, 0.5-5 parts by weight of calendula, 0.15-5.5 parts by weight of a plant extract, 0.01-0.5 part by weight of haematococcus pluvialis and the balance of an additive. The plant extract comprises a honeysuckle flower extract, a semen plantaginis extract, a chrysanthemum flower extract, a liquorice root extract, a cranberry extract, a Vaccinium vitis-idaea extract, a green tea extract, a ginkgo leaf extract and a grape seed extract. Through cooperation of various anti-inflammatory and anti-oxidation substances, the anti-oxidation substances can relieve stress of cat eyes of pets, reproduce bacteria around eyes, inhibit inflammation, scavenge free radicals and reduce tear discharge of pet cats. Meanwhile, the liquorice root extract has the effects of expelling phlegm to arrest coughing and clearing away heat and toxic materials, is beneficial to dredging nasolacrimal ducts of the pet cats, and fundamentally reduces the production of tears, thereby achieving the purpose of reducing tear stains.
Owner:TIANJIN RANOVA PET FOOD

Process for producing pig compound feed by resource utilization of dairy cow manure

The invention discloses a process for producing pig compound feed by the resource utilization of dairy cow manure. The process is favorable for realizing the resource utilization of the dairy cow manure and solves the two problems of dairy cow breeding environment pollution and live pig breeding resource shortage. The process has the benefits that through the combined effect of biological fermentation agents and cellulose, the dairy cow manure is converted into the pig compound feed with high protein content, bright color and mellow smell through adding of fermented mash in the fermentation process; the pig compound feed has the advantages of better deodorization effect, high nutritive value and the like; through multi-strain anaerobic fermentation, the biological activity of pathogenic microorganisms is restrained, and by means of lactic acid generated by lactic acid bacteria, antibiotic substances generated by actinomycetes and antioxidant substances generated by other beneficial microorganisms, the pathogenic microorganisms are effectively restrained and killed, so that the pig compound feed is harmless; the pig compound feed confirms to the hygienic standards of feed; in addition, the process is simple and is easy for large-scale industrial production.
Owner:QINGDAO JIARUI BIOLOGICAL TECH

Method for detecting antioxidants in vegetable oil or animal fat

The invention relates to a device for detecting antioxidants in vegetable oil or animal fat and an operating method thereof, and belongs to the technical field of high performance liquid chromatography (HPLC). The method for detecting antioxidants in the vegetable oil or animal fat can quickly detect the objects with antioxidant activity in the oil and fat. The device for detecting antioxidants in vegetable oil or animal fat is composed of a high performance liquid chromatograph (HPLC includes a high-pressure pump, a silicone liquid chromatographic column, a visible ultraviolet detector, a sampler, a signal recorder), a high-pressure pump, a visible detector, a signal recorder, a T-joint for the HPLC, a buffer, and a reaction cycle, and utilizes a chemical radical Galvinoxyl to detect antioxidant in mixture. HPLC mobile phase utilizes n-hexane and tert-butyl methyl ether, and the radical solvent is n-hexane. Components in the oil and the fat are reacted with the radical after being separated by the high performance liquid chromatography (HPLC) one by one, wherein components with antioxidant activity enable the radical to fade and to be the negative peak. Chromatograms being compared with those reacted with the radical, the number of the antioxidants in the oil and fat, retention time and the antioxidant activity of the components can be acquired. The method for detecting the antioxidants in the vegetable oil or animal fat has the advantages of being quick and easy, and high in sensitivity.
Owner:NORTHWEST A & F UNIV

Method for controlling oxidation of raw nuts

The invention discloses a method for controlling oxidation of raw nuts. The method comprises the following steps: (1) stirring and dissolving a film-forming material, namely chitosan in a solvent to obtain a film-forming solution; (2) adding an antioxidant, namely tea polyphenol into the film forming liquid for dissolving, and performing ultrasonic treatment and sieving to obtain a coating liquid; (3) soaking nuts in the coating liquid for a short time, and fishing out and draining the nuts; (4) drying the drained nuts in a forced air drying oven; and (5) putting the dried nuts into the coating liquid again for short-time soaking, then fishing out and draining the nuts, and carrying out forced air drying. According to the invention, natural antioxidant substances are added into the film forming liquid, and the nuts are controlled to be in contact with moisture and oxygen in the air after film forming, so the effect of controlling oxidation of the walnut kernels is achieved; the method is easy to operate, and the effect of controlling oxidation resistance of the raw nuts is obvious; and the processing mode of secondary coating and drying is adopted, so the uniformity and the thickness of the coating liquid on the surfaces of the walnuts are increased, and oxidation resistance is improved.
Owner:QINGDAO AGRI UNIV
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