30results about How to "Maintain antioxidant activity" patented technology

The invention discloses a yeast microcapsule of globe artichoke polyphenol and a preparation method of the yeast microcapsule. A yeast microcapsule product is prepared from freeze-dried powder of globe artichoke serving as a core material and yeast cells serving as an embedding wall material through water bath constant-temperature oscillation, centrifuging and freeze-drying, wherein the freeze-dried powder of globe artichoke is obtained through extraction, purification and freeze-drying. Yeast cells are rich in nutrition self, and due to microencapsulation of the yeast cells, the antioxidant activity of polyphenol is maintained, and furthermore nutrient substances of yeast are supplied, so that the yeast microcapsule has the characteristics of slow medicine release, high bioavailability, relatively simple preparation process and is suitable for industrial large-scale production, and meanwhile ideas and directions are provided for further application of polyphenol.

The invention relates to a purple sweet potato milky beverage and a processing technology thereof and belongs to the technical field of health-care foods. The purple sweet potato milky beverage is characterized in that natural food materials are adopted and artificially synthesized essence, artificially synthesized pigments and artificially synthesized preservatives are not added. By taking fresh purple sweet potatoes as a main raw material, the purple sweet potato milky beverage is prepared through the steps: cooking and gelatinization, high pressure homogenization, mixing, sterilization and packaging. According to raw material treatment, the raw material is firstly cooked and then smashed and oxygen is isolated by water, so that enzymatic oxydative browning of anthocyanins from purple sweet potatoes is avoided. According to the processing method, high pressure homogenization is adopted, so that layered settlement of the product is avoided and the product stability is improved; in addition, an auxiliary material milky powder is further introduced, so that the texture, the taste, the flavor and the nutritional value of the purple sweet potato milky beverage are obviously improved and enhanced. The obtained purple sweet potato milky beverage is bright and attractive in color, and is fine, smooth and lubricant in organization structure. The purple sweet potatoes and the milk bring out the best in each other in flavor, the content of sugar is lower than that of a conventional beverage, and the purple sweet potato milky beverage is low in quantity of heat and high in health-care value.

The invention belongs to the biotechnology field, which particularly relates to a deuterohemin short peptide compound modified by the Monomethoxy-Polyethylene Glycol Succinimidyl Ester derivatives and the preparation method for the compound, which adds phosphate buffer into the water solution prepared by a deuterohemin 6-mer peptide, and then reacts by adding the solid powder of active Polyethylene Glycol derivatives or the acetonitrile solution of the Polyethylene Glycol derivatives and obtains the deuterohemin 6-mer peptide modified by the Polyethylene Glycol by chromatographic separating of the reaction mixture with the reversed-phase high performance Liquid Chromatography. The deuterohemin 6-mer peptide modified by the Polyethylene Glycol of the invention can basically maintain the biological activity of the deuterohemin 6-mer peptide, and has better stability than the deuterohemin 6-mer peptide without any modification. The preparation method of the deuterohemin 6-mer peptide modified by the Polyethylene Glycol of the invention is simple and easy to operate, while the structure general formula of the deuterohemin 6-mer peptide modified by the Polyethylene Glycol is shown on the right, wherein, R stands for a DhHP-6 molecule eliminating an NH2.

The invention discloses a preparation method of purple perilla anthocyanin microcapsules. The preparation method comprises the following steps of using purple perilla leaves in a bud period as a material, using a purple perilla anthocyanin crude extract obtained through macroporous resin purification as a core material, using maltodextrin and arabic gum as wall materials, performing homogenizing to obtain mixing liquid of the wall materials and the core material, and performing freeze drying, so as to finally obtain purple perilla anthocyanin microcapsule products. According to the preparationmethod disclosed by the invention, a microencapsulation method is simple, through microencapsulation of anthocyanin of purple perilla, the stability of the anthocyanin is improved, the antioxidant activity of the anthocyanin of the purple perilla is maintained, and the anthocyanin of the purple perilla, as a food additive, can be applied to food industry.

The invention provides a preparing method for the antioxidant biological micro capsule and relates to the yeast cell cultivation, handling and the preparing method for the micro capsule, particularly the invention relates to an antioxidant biological micro capsule which is made by the method. After the modification handling to the cultivated yeast cell in the shaking bottle by the temperature-eighty or TritonX-one hundred, hexadecyl trimethyl ammonium bromide, sodium laurylsulfate, ethyl acetate, ethanol, hydrochloric acid, sodium hydroxide, potassium chloride and sodium chloride, then offcenter, wash and dry the yeast cell; then contact the cytoderm of the yeast with the water soluble chlorogenic acid or the fatsoluble polydatin in high frequency, and then off center and wash out the antioxidant on the surface of the cell, and then dry and the yeast cell micro capsule without antioxidant on the surface is obtained which has an even size and is not adhesive with a strong antioxidant capability. The invention realizes the stabilization of the chlorogenic acid and can effectively reduce the light retrogradation speed of the Polydatin; and the invention can enhance the water solubility by two to three times and has the slow release capability.

The invention provides soybean oil containing composite natural antioxidants and a preparation method thereof and relates to the field of production of edible vegetable oils. The soybean oil comprises, per kg, 0.1-0.2 g of astaxanthin, 0.5-1 g of tangerine peel extract, 1-1.5 g of licorice root extract, 0.5-0.8 g of cassia bark extract, 0.1-0.2 g of peanut sell extract, and 7.5 g of soybean lecithin; the preparation method comprises the steps of extracting natural antioxidant ingredients, mixing, dispersing and the like; by using the soybean oil containing the composite natural antioxidant, the damage of free radicals upon human bodies can be cleared effectively, and accumulation of senile cells is decreased; the natural antioxidant components can travel through the blood brain barrier to truly provide antioxidant and anti-inflammatory actions for eyes, brain and central nervous system; the action of hydrogen bonds between molecules help stabilize the structure of the natural antioxidants, the organic acids in the composite natural antioxidants interact with digestive enzymes, thereby promoting the absorption of nutrition; measurement by DPPH (1,1-diphenyl-2-picrylhydrazyl radical) shows that the antioxidant capacity of the composite natural antioxidants is better than that of any individual component.

The invention relates to the technical field of poultry egg processing, in particular to an environment-friendly salted egg wrapping material capable of replacing yellow mud and a pickling method thereof, the wrapping material comprises the following components: modified starch, eggshell powder, a cactus alcohol extract, edible salt, a sodium citrate phosphate buffer solution, tea polyphenol, astaxanthin and selenium yeast; the method for pickling the salted eggs by using the wrapping material comprises the following steps: cleaning duck eggs, smearing the wrapping material on the duck eggs, pickling the duck eggs, taking out of a jar, cleaning, packaging and cooking. Along with the requirements of modern food processing on hygienic standards and environmental protection, the traditional technology for pickling salted eggs with yellow mud has the problems of large microbial pollution, heavy metal migration and residual hidden dangers and difficult discharge of high-salt yellow mud water, and the novel wrapping material for pickling salted eggs has the advantages of safety, environmental protection, large amount of oil sand, good quality and long shelf life.

The invention discloses a crocodile antioxidant peptide complex. The complex includes, by mass percentage, 0.1-2% of crocodile antioxidant peptide 1, 0.5-3% of crocodile antioxidant peptide 2, 0.1-2%of crocodile antioxidant peptide 3, 0.1-2% of crocodile antioxidant peptide 4 and 0.5-5% of crocodile antioxidant peptide 5; and the molecular weight of the complex is in the range of 800-1,500 Da. The complex can effectively eliminate DPPH.free radicals, ABTS<+>.free radicals and hydroxyl(OH<->)free radicals; and the complex has no toxic action on Lo2 and HaCat cells and has repairing functions on the HaCat cells injured by oxidation induced by hydrogen peroxide.

The invention relates to an astaxanthin composition as well as a preparation method and application thereof. The astaxanthin composition comprises the following components based on the total mass of the astaxanthin composition: 25-50% of micro-algae oil; 45-70% of oat kernel oil; and 0.01 to 5% of astaxanthin. Compared with the prior art, the efficient and stable astaxanthin composition at least has the beneficial effects that the micro-algae oil and the oat kernel oil are compounded to be used in an astaxanthin-containing antioxidant skin care product, so that astaxanthin has good light stability and heat stability, and the antioxidant activity of astaxanthin in the skin care product is maintained.

The invention discloses a liver-protecting giant salamander liver peptide wine formula and a production process thereof, belongs to the technical field of peptide preparation, and solves the problem that a giant salamander wine product does not have liver-protecting and liver-nourishing effects, the liver-protecting giant salamander liver peptide wine formula comprises the following components: giant salamander liver peptide powder and wine liquid with the alcohol concentration of 20%-90% in a mass ratio of 0.1%-10%, or blending the giant salamander liver peptide enzymatic hydrolysate with alcohol according to a mass ratio of 1: 9-4: 1. The production process comprises the following steps: (1) mashing, cooking and carrying out enzymolysis on liver tissues of giant salamanders to prepare agiant salamander liver peptide raw material blended with liver peptide wine; (2) putting the prepared raw materials into a centrifugal machine for centrifugal filtration, and removing fibers and macromolecular substances which cannot be subjected to enzymolysis; (3) mixing the filtered giant salamander liver peptide raw material with alcohol according to a required ratio; and (4) putting the mixedwine liquid into the centrifugal machine again, filtering, and removing the generated precipitate to obtain the finished wine. The product disclosed by the invention improves the liver detoxificationcapability and has the effects of protecting and nourishing the liver.

The invention relates to a method for preparation of ganoderma lucidum enzyme through continuous fermentation. The method specifically includes the steps of: S1, ganoderma lucidum pretreatment; S2, preparation of a ganoderma lucidum extracted solution; S3, primary fermentation; S4, secondary fermentation; and S5, continuous fermentation. A ganoderma lucidum extracted solution is prepared before aganoderma lucidum enzyme fermentation process, active ingredients contained in ganoderma lucidum are fully extracted, continuous fermentation is adopted in the fermentation process, the fermentation time is effectively shortened, the risk of sundry fungus contamination in the existing fermentation process is avoided, and finally the ganoderma lucidum enzyme with high content of ganoderma lucidum polysaccharide, ganoderic acid, ganoderma lucidum organic germanium and other active ingredients is prepared.

The invention relates to the technical field of natural compound extraction, in particular to a method for extracting garlic skin, an extracted garlic skin extract and an application thereof. The method for extracting the garlic skin is characterized by comprising the following steps: (1) adding acidic ethanol into a reaction bottle filled with garlic skin powder to extract the garlic skin powder,and separating to obtain an acidic ethanol extracting solution after the extraction is finished; (2) adding alkaline ethanol into the reaction bottle, enabling a pH value of the mixed solution to be6.5-8.0 after the alkaline ethanol is mixed with the garlic skin powder, and performing secondary extraction on the garlic skin powder to obtain a second extracting solution; (3) adding ethanol into the reaction bottle, and carrying out third extraction on the garlic skin powder to obtain a third extracting solution; and (4) concentrating the acidic ethanol extracting solution, the second extracting solution and/or the third extracting solution to obtain the garlic skin extract. The garlic skin extract extracted by the method has better antioxidant performance.

The invention provides xanthoceras sorbifolia bunge essence and application thereof. The xanthoceras sorbifolia bunge essence is prepared from xanthoceras sorbifolia bunge extract, hovenia acerba extract, white-flower chamomile extract, water and water-phase auxiliary materials. According to the xanthoceras sorbifolia bunge essence and the application thereof, the natural organic extract is adopted as an anti-allergic, antioxidant and anti-aging material, water-based low-temperature extraction is achieved through a special enzymatic decomposition extraction method, the antioxidant activity ofthe extract is effectively maintained, and the content of effective components is high, so that the essence has the advantages that the essence not only can play a role in resisting oxidative stress and treatment of skin, but also can go deep into the bottom layer of the skin to effectively relieve uncomfortable symptoms of the skin, particularly has good nutrition and repair effects on skin agingand injury caused by high-low temperature difference and the like, and can adapt to applying to skins of different parts through multiple groups of experiments; and skin repair of different parts ofskin under different damage mechanisms can be met, and wide applicability is achieved in the field of skin health care.

The invention relates to an oily system containing 3,4-dihydroxyphenylethanol. The oily system consists of, by mass in parts, 1.2-96 parts of the 3,4-dihydroxyphenylethanol, 145-2,290 parts of an oilysolvent and 1.5-96 parts of a protective agent. A preparation method and applications of the oily system are also provided. The oily system is formed by uniformly mixing 1.2-96 parts of the 3,4-dihydroxyphenylethanol, 1.5-96 parts of the protective agent and 145-2,290 parts of the oily solvent; the oily system has good light stability and thermal stability, so that the application products of theoily system can be avoided from discolouring due to oxidation during using; and therefore, the oily system has good applicability.

The invention discloses a preparation for improving oxidation resistance of soft-shelled turtle peptide in the stomach and intestine and a preparation method thereof. The preparation comprises 40-60 parts of soft-shelled turtle peptide powder and 20-80 parts of compound substances, the preparation method combines an ultrasonic-assisted shearing technology, a freeze-drying technology and a superfine grinding technology, the ultrasonic technology is applied to physical shearing by means of the ultrasonic-assisted shearing technology, the solution is more uniform and thorough, and a large amount of shearing time can be saved. Then freeze-drying is performed to obtain fine powder with less activity loss, and finally the diameter of the powder is further reduced by utilizing a superfine grinding technology, so that the powder is more rapidly dissolved and better in flowing property. The soft-shelled turtle peptide and the compound substance are subjected to pretreatment, so that the soft-shelled turtle peptide and the compound substance interact to form a stable particle form, the gastrointestinal digestion effect can be resisted, the antioxidant activity of the peptide is maintained, and the peptide has no significant difference before and after digestion. The added compound substance can improve the taste problem after the soft-shelled turtle peptide is brewed, and the plant taste can cover the fishy smell of the soft-shelled turtle peptide.

The invention discloses a formula of giant salamander stomach peptide capable of strengthening a spleen and a stomach. The formula comprises the following raw materials in parts by weight: 20 to 90 parts of giant salamander stomach peptide powder, 5 to 25 parts of millet extract, 5 to 20 parts of fructus zizyphi sativae extract and 5 to 20 parts of semen nelumbinis extract. The invention further discloses a production process of the giant salamander stomach peptide capable of strengthening the spleen and the stomach, the production process comprises a preparation method of the giant salamander stomach peptide powder, and the preparation method of the giant salamander stomach peptide powder comprises the following steps that mashing and enzymolysis are performed on artificially cultured giant salamander stomach tissues to prepare a giant salamander stomach peptide raw material blended with the stomach peptide; mixed liquid of water and alcohol is added into the giant salamander stomach peptide raw material for enzymolysis, centrifugal filtration is performed after enzymolysis to obtain giant salamander stomach peptide enzymatic hydrolysate, and the giant salamander stomach peptide enzymatic hydrolysate is dried to obtain the giant salamander stomach peptide powder. According to the formula and production process of the giant salamander stomach peptide capable of strengthening the spleen and the stomach, the giant salamander stomach peptide raw material and the edible alcohol are mixed to prepare a product, and the giant salamander stomach peptide contains abundant nutrient substances which are easy to dissolve in alcohols, so that various elements required by a human body can be supplemented, and the effect of strengthening the spleen and the stomach is achieved.

The present invention relates to a processing method of blueberry granular powder. The method comprises the following steps: ripening blueberries are selected, the selected blueberries are washed, impurities of the washed blueberries are removed, the impurity removed blueberries are blanched, the blanched blueberries are squeezed into slurry, fruit seeds are sieved out, then 1-1.2% by mass of a citric acid solution at 1-2 times of a mass of the slurry is added, and a mixture is subjected to a high pressure treatment at 200-400 MPa and 25-30 DEG C for 15-20 minutes; then 0.5-0.6% of a zinc ion solution at a concentration of 0.01-0.02 mol/L is added, a pH is adjusted to be 3-3.5, a secondary squeezing is conducted for 20-25 minutes, a sieving is conducted, and insoluble matters are filtered out; then 15-20% of maltodextrin is added, a substrate concentration is adjusted to be 35-40%, and a spray drying is conducted; and then a fine crushing is conducted, the crushed materials pass a 120-200 mesh sieve, a swelling agent is added, the materials are pressed into granules, the granules are sieved, the sieved granules are subjected to a shading sub-filling, and the sub-filled granular powder is preserved by filling nitrogen. The processing method aims at preventing degradation and loss of anthocyanins contained in the blueberries, better retains nutritional contents of the blueberries and promotes a development of a deep processing of the blueberries.

The present invention discloses selenium-zinc-calcium compound chewable tablets, and a preparation method and applications thereof, and belongs to the field of functional foods. The chewable tablets comprise the following components: L-selenium-methyl selenocysteine, zinc gluconate, calcium carbonate, powdered sugar, xylitol, mannitol and magnesium stearate. The preparation method is as follows: taking the L-selenium-methyl selenocysteine, the zinc gluconate and the calcium carbonate as main functional ingredients; preparing other auxiliary materials according to a certain proportion; and performing the following process steps: raw material pretreatment, mixing, soft material preparation, granulation, drying, granule sieving and tabletting so as to obtain the selenium-zinc-calcium compoundchewable tablets. The chewable tablets are complete in shape, smooth and clear in appearance, moderate in hardness, delicious with slight sweetness and sourness, and convenient to eat; and the tablets are taken by chewing, so that active ingredients can directly scatter in the oral cavity and the stomach. The chewable tablets well keep the physiological activities of the L-selenium-methyl selenocysteine such as oxidation resistance.