86results about How to "Reduce oxidative damage" patented technology

The invention discloses a camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition and application thereof, and relates to the technical field of cosmetics. The invention provides a camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition. The camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition is prepared from the following components in parts by weight: 1 to 5 parts of camellia nitidissima flower extract, 1 to 5 parts of seaweed oligosaccharide, 0.01 to 1 part of o-cymene-5-ol and 0.01 to 1 part of tocopherol retinoate. According to the anti-pollution acne-sensitive skin repairing composition containing the camellia nitidissima flower extract, four components including the camellia nitidissima flower extract, the seaweed oligosaccharide, the o-cymene-5-ol and the tocopherol retinoate in proper parts by weight are selected to cooperate with one another, so that the composition has better anti-pollution and antibacterial effects and has very good acne removing, repairing and soothing effects.

The invention relates to the technical field of daily chemicals, in particular to a white tomato whitening and repairing composition as well as a preparation method and application thereof. The composition comprises the following components in percentage by mass: 68-85% of jojoba oil, 10-25% of squalane and the balance of white tomato extract, wherein the total percentage is 100%. The white tomatoes are rich in colorless carotenoids (such as phytoene and tetrahydrolycopene), and have excellent antioxidant and whitening capabilities: melanin formation is inhibited, and the colorless carotenoids can inhibit tyrosinase activity, reduce melanin generation and fundamentally whiten the skin. Pigmentation caused by ultraviolet rays can be relieved through the anti-oxidation effect, and the color spots are prevented and faded. The skin color can be brightened after continuous use, so that the skin presents natural luster.

The invention relates to the field of food and health care products, and discloses a composition for dispelling effects of alcohol and protecting liver, which comprises 20-100 parts of ampelopsis grossedentata leaf extract; 50 to 200 parts of a radix puerariae extract; 10-50 parts of a semen hoveniae extract; 10-50 parts of a turmeric extract; 10 to 100 parts of a yeast extract; 5-50 parts of a licorice extract; and 5 to 20 parts of pyrroloquinoline quinone disodium salt. The ampelopsis grossedentata leaf extract, the kudzuvine root extract and the hovenia dulcis thunb extract are utilized, alcohol decomposition is promoted, the blood ethanol concentration is reduced, and drunkenness symptoms are relieved. Puerarin improves activity of liver metabolic enzymes, accelerates discharge of ethanol and acetaldehyde, and reduces liver damage. The anti-oxidation effects of dihydromyricetin and PQQ can eliminate alcohol metabolism free radicals and protect liver cells. The components such as puerarin, hovenia dulcis thunb, curcumin and glycyrrhizic acid jointly promote liver cell regeneration, inflammation and oxidative damage are reduced, the levels of ALT and AST in serum are reduced, and liver health is maintained.

The invention discloses an anti-aging composition containing PQQ and a preparation method of the anti-aging composition, and belongs to the field of medicines or health food, the anti-aging composition comprises PQQ, an antioxidant, collagen, hyaluronic acid and a plant extract, and the content of PQQ is 0.1-5%; 1%-10% of collagen; 0.05%-2% of hyaluronic acid; the antioxidant comprises the following components in percentage by weight: 0.5%-5% of vitamin C, 0.1%-3% of alpha-tocopherol and 0.05%-2% of beta-carotene; the composition contains PQQ and various antioxidants such as vitamin C, alpha-tocopherol, beta-carotene, coenzyme Q10 and glutathione, and the components have a synergistic effect, so that free radicals can be effectively removed, oxidative damage can be reduced, and cell aging can be delayed; most of the components in the composition are natural substances or are widely applied to the fields of food and health care products, the safety is high, and the quality and safety of the product can be ensured through the steps of strict preparation process control, accurate component dissolving method, pH value adjustment, filtration and the like.

The invention discloses application of a natural inducer in fruit preservation, and particularly relates to the technical field of fruit preservation. According to the application of the natural inducer in fruit preservation, the natural inducer is used as an active ingredient to inhibit growth of botrytis cinerea on fruits and induce immune systems of the fruits to enhance active oxygen metabolism; the natural inducer is theanine; the fruits are kiwi fruits. When the natural inducer provided by the invention is applied to fruit preservation, a relatively good preservation effect can be exerted on kiwi fruits.

The invention discloses a composite antioxidant enhancer containing rosmarinic acid and a preparation method of the composite antioxidant enhancer, relates to the technical field of food, and aims to solve the problem that the existing food fresh-keeping antioxidant in the prior art is relatively single in component and incomplete in antioxidant capacity, so that the effect in daily food fresh-keeping is not very good. Comprising the following components: 5% of rosemary essential oil, 20% of tea polyphenol, 15% of aloe polysaccharide, 5% of curcumin, and the balance of food-grade glycerin as a carrier, the composite antioxidant enhancer is prepared through an enhancer preparation device, and the enhancer preparation device comprises a mixing tank. The lower ends of the multiple fixing rods extend to the lower end in the mixing tank and are jointly and fixedly connected with a shearing pipe, the middle of the lower end of the supporting plate is rotationally connected with a rotating pipe, and the lower end of the rotating pipe extends to the upper end in the shearing pipe and is fixedly connected with a first spiral blade; the lower end of the rotating shaft extends out of the lower end of the rotating pipe and extends to the lower end in the shearing pipe to be fixedly connected with a third spiral blade.

The invention provides a peptide beverage capable of dispelling effects of alcohol, protecting liver and relieving fatigue and a preparation method and application thereof.The peptide beverage comprises hovenia dulcis thunb oligopeptide, walnut peptide, antioxidant peptide, energy release auxiliary peptide and the like, and the antioxidant peptide is prepared by mixing cordyceps militaris, sea-buckthorn and sunflower heads. The energy release auxiliary peptide is prepared from carnosine and arginine succinic acid peptide through microbial fermentation. The preparation method comprises the following steps: mixing the components according to a certain ratio, stirring, homogenizing, sterilizing and the like. The peptide beverage has the effects of dispelling the effects of alcohol, protecting the liver and relieving fatigue, and is suitable for preparing drugs or health-care products for dispelling the effects of alcohol and protecting the liver. The preparation method has the characteristics of strict raw material selection and fine preparation process, and ensures the quality and efficacy of the product. Through a scientific ratio and an advanced preparation technology, the peptide beverage provides a new choice for dispelling the effects of alcohol, protecting the liver and relieving fatigue, and has a wide market application prospect.

The invention belongs to the technical field of cosmetic production, and discloses an anti-aging composition which comprises a nymphaea tetragona flower extract and vegetable oil, and the mass ratio of the nymphaea tetragona flower extract to the vegetable oil is (0.5-2): 4. The vegetable oil is selected from at least one of sunflower seed oil, peony seed oil, olive fruit oil, prunus amygdalus dulcis oil, linseed oil and borage seed oil, and the vegetable oil at least contains the sunflower seed oil. The invention discloses an anti-aging composition capable of delaying skin aging, and in addition, the invention further discloses application of the anti-aging composition and a cosmetic.

The invention discloses a preparation method of jujube polysaccharide with antioxidant and nerve cell protection activity, and relates to a preparation method of jujube polysaccharide, which comprises the following steps of: firstly, obtaining extract from jujube by using a petroleum ether, 90% ethanol and distilled water condensation reflux extraction method, deproteinizing and decolorizing, separating by using DEAE-52 cellulose column chromatography, and separating by using ethanol to obtain the jujube polysaccharide with antioxidant and nerve cell protection activity. And finally, further purifying by using SephadexG-200 gel, so as to finally obtain the jujube polysaccharide ZJP-1. And the molecular weight of the ZJP-1 is 9.04 kDa. In-vitro DPPH, ABTS and hydroxyl radical scavenging activity results show that the jujube polysaccharide ZJP-1 has antioxidant activity. Meanwhile, the activity of T-AOC, SOD and GSH-Px in damaged nerve cells can be improved, the content of MDA is reduced, and oxidative damage of the nerve cells is effectively relieved.

The present invention provides a high-protein bio-fermented aquatic feed and a preparation method thereof. The aquatic feed comprises the following raw materials in parts by weight: 20-30 parts of imported fish meal, 10-15 parts of compound minerals, 5-10 parts of bioactive peptides, 5-10 parts of lysine, 5-10 parts of compound trace elements, 3-8 parts of compound vitamins, 3-6 parts of herbal extracts, 2-5 parts of compound probiotics, 2-4 parts of immune polysaccharides, and 1-3 parts of compound enzymes; the herbal extracts are prepared by fermenting astragalus membranaceus, isatis root, liquorice root, calotropis gigantea, ventilago leiocarpa benth, clove, rhizoma chuanxiong, and galangal officinale. By organically integrating imported fish meal, astaxanthin-peptide chelate, herbal extracts, compound immune polysaccharides, compound probiotics and various nutrients, the present invention realizes the synergistic effect of "promoting feeding - enhancing digestion - strengthening liver and gall - enhancing immunity - resisting stress - inhibiting bacteria - stabilizing water quality", significantly improves the growth rate, survival rate and comprehensive breeding benefit of crustacean aquatic animals, and has good economic value and application prospect.

This invention provides a method for microalgae to fix carbon dioxide under high-mineralization and high-temperature environments, belonging to the field of microalgae cultivation and carbon neutrality technology. The carbon dioxide fixation method includes the following steps: S1: Constructing a carbon fixation culture system using ammonium sulfate as the sole nitrogen source; S2: Introducing microalgae into the carbon fixation culture system for cultivation at a temperature of 20-43℃; S3: Passing carbon dioxide-containing flue gas into the carbon fixation culture solution, and collecting the microalgae biomass after cultivation to fix carbon dioxide. This invention can improve the stress resistance and carbon fixation performance of microalgae under high-mineralization and high-temperature environments, is suitable for the synergistic treatment of high-mineralization water bodies and high-carbon dioxide concentration flue gas in power plants, and has low treatment costs, is easy to operate, and has broad application prospects.

The application discloses a total phenolic acid conversion product of Salvia miltiorrhiza stems and leaves with myocardial protection function and a preparation method and application thereof, wherein the conversion product is obtained by adjusting the pH of the total phenolic acid of Salvia miltiorrhiza stems and leaves with hydrochloric acid and then adopting a high-temperature and high-pressure sterilization pot to react. In the conversion product, the content of salvianolic acid A is 7-9%, the content of danshensu is 15-17%, the content of protocatechuic aldehyde is 1-2%, the content of rosmarinic acid is 13-15%, the content of shikonin is 1-2%, and the content of salvianolic acid B is 3-4%. The total phenolic acid conversion product of Salvia miltiorrhiza stems and leaves provided by the application has the activities of antioxidation, myocardial protection and oxidation damage reduction, protection of vascular endothelial cells and myocardial cells, and the function of free radical elimination and oxidation damage reduction, has reliable curative effect, good safety, low adverse reaction, and can be used for preparing a cardiovascular protection medicine.

The invention relates to the technical field of supramolecular chemistry, and particularly discloses a plant polyphenol supramolecular self-assembly system and a construction method and application thereof, and the plant polyphenol supramolecular self-assembly system is obtained by mixing echinacoside and ferrous gluconate in an environment with pH of 7-11 according to a molar ratio of (5-6): 4, heating and reacting at 40-45 DEG C for 20-24 hours, and dialyzing and drying. The plant polyphenol supramolecular self-assembly system provided by the invention shows an excellent drug release behavior, shows remarkable pH responsiveness in an acid environment, effectively enhances the antioxidant and neuroprotective effects of ECH, and remarkably improves the blood-brain barrier transmittance of ECH.

The invention discloses application of ginseng leaf polysaccharide in relieving fish quality decline caused by water hypoxia, and belongs to the technical field of aquatic product culture. The ginseng leaf polysaccharide is applied to relieving fish quality decline caused by water hypoxia for the first time, and by adding the ginseng leaf polysaccharide, the problems of fish muscle oxidative damage, poor texture property, low nutritional value and the like caused by hypoxia stress can be effectively improved; the invention provides a new relieving technology for improving fish quality decline caused by hypoxia in culture, provides technical support for improving fish quality of cultured fishes under intensive culture conditions, improves freshwater fish culture benefits, and solves the problem of lack of a safe and reliable method for relieving fish quality decline caused by hypoxia in a water body at present.

The invention relates to a method for prolonging shelf life of agricultural products by using a BOPE (biaxially oriented polyethylene) film, which is characterized in that PE (polyethylene) and BOPE film packaging are respectively applied to fresh tomato fruits (breathing climacteric change) and strawberry fruits (non-breathing climacteric change), the weight loss ratio, malondialdehyde and oxidation trend of the fruits are obviously reduced, and the activity of antioxidant enzyme POD (peroxidase) is obviously improved. The weight loss ratio of the strawberries packaged by the BOPE film is lower than that of a control group at the end of the storage period, the hardness and the soluble solid content of the fruits are higher than those of the control group, and the phenomena of aging, water loss, hardness and soluble solid (TSS) reduction of the harvested strawberries in the storage process are effectively delayed. The weight loss ratio of the tomato fruits packaged by the BOPE film is obviously reduced compared with that of a control group, and a good effect is achieved in the aspects of keeping the hardness and the soluble solid content of the fruits.

The invention relates to the technical field of bovine embryo culture media, in particular to a polypeptide-mitochondrial targeting-antioxidant synergistic bovine embryo culture medium and a preparation method thereof.The polypeptide-mitochondrial targeting-antioxidant synergistic bovine embryo culture medium comprises the following components: 200-300 [mu] g / mL of SS-31, 0.1-0.3 mg / mL of superoxide dismutase, 0.5-1.0 mg / mL of heat shock protein mimetic peptide, 20-50 mg / mL of amino acid complex and a basic culture medium, and an efficient mitochondrial protection system is established. The targeting effect of SS-31 and the cooperation of an antioxidant network enable the mitochondrial membrane potential to be maintained at the optimal level, and the ATP yield is increased by nearly 100% and is far superior to that in the prior art. And multi-level defense of oxidative stress is realized. Experimental data show that the ROS level in the culture system is reduced by 45% compared with that of a control group, and lipid peroxidation and protein oxidative damage are remarkably relieved. The protection effect derives from the synergistic effect of multiple antioxidant components.

The invention discloses a TSS-SBFO coating agent for storage and preservation of perishable fruits and a preparation method of the TSS-SBFO coating agent. The coating agent prepared from the sphaeros gum, the artemisia desertorum gum, the silk fibroin peptide, the sea buckthorn fruit oil and the glycerol can be used for storage and preservation of perishable fruits, and has good oxidation resistance. The coating agent prepared by the invention can be directly coated on the surfaces of perishable fruits in a soaking manner, the use method is simple, good light transmittance can be maintained while the ultraviolet transmittance is reduced, and the effects of keeping fresh, resisting oxidation and maintaining a good state of the fruits can be achieved.

This invention relates to the field of biomedical technology, specifically to nanoparticles for treating retinal ischemia-reperfusion injury, their preparation method, pharmaceutical composition, and uses. The nanoparticles consist of a zeolite imidazole ester-8 core encapsulating baicalin and a polydopamine shell coating its surface, prepared via in-situ self-polymerization. The nanoparticles utilize the polydopamine shell to scavenge reactive oxygen species and prolong intraocular residence time, while their core responsively degrades in a weakly acidic pathological microenvironment, precisely releasing baicalin, thereby synergistically exerting antioxidant, anti-inflammatory, and anti-apoptotic effects. Experiments show that these nanoparticles can effectively reduce oxidative damage and inflammation in the model retina, significantly inhibit ganglion cell apoptosis, and restore electroretinogram function, providing a novel multi-target therapeutic strategy for retinal ischemic diseases.

The invention discloses a muscle anti-aging composition with spermidine combined with a wolfberry aqueous extract and application of the muscle anti-aging composition, and belongs to the technical field of application of bioactive substances. The composition is prepared by compounding spermidine and a Chinese wolfberry aqueous extract according to a specific ratio, and the Chinese wolfberry aqueous extract is prepared by an optimized aqueous extraction process, so that core active ingredients are reserved to a greater extent. The optimal mass ratio of spermidine to the wolfberry aqueous extract is 1: 2. Through a synergistic effect mechanism, the antioxidant capacity of senescent muscle cells is remarkably improved, and the muscle cell oxidative stress and senescence process induced by D-galactose is effectively inhibited. The composition is simple in preparation process and safe in components, can be widely applied to the fields of food, health care products and medicines, and provides a new solution for developing efficient and natural muscle anti-aging products.

This invention relates to the field of biomedical engineering technology, specifically to a biopolymer film, its preparation method, and its applications. The biopolymer film is mainly composed of the following components: gelatin, sodium alginate, purple cabbage anthocyanin extract, and tannic acid-modified zinc oxide nanoparticles. The preparation method is as follows: tannic acid-modified zinc oxide nanoparticles are dispersed in an acidified solution, gelatin and sodium alginate are added, and the mixture is stirred to dissolve, obtaining a first mixed solution; purple cabbage anthocyanin extract is dissolved in water, tannic acid is added, and the mixture is stirred to dissolve, obtaining a second mixed solution; the first and second mixed solutions are mixed evenly to obtain a film-forming solution; the film-forming solution is poured into a mold and dried to form a film, thus obtaining the biopolymer film. The biopolymer film of this invention integrates the cross-linking enhancement, anthocyanin stabilization, and antibacterial functions of tannic acid, solving the problems of existing biopolymer films requiring multiple additives, complex processes, and functional constraints.

The invention belongs to the technical field of traditional Chinese pharmacology and veterinary medicine, and relates to prepared rhizoma polygonati polysaccharide as well as a preparation method and application thereof. The prepared rhizoma polygonati polysaccharide is mainly composed of galactose, the main chain is-4)-beta-D-Galp-[(1-4) / beta-D-Galp] 7-(1->, a beta-D-Galp-group is connected to the position 6 of an intermediate galactose molecule, the prepared rhizoma polygonati polysaccharide is further connected to-4)-beta-D-Manp-(1-4)-beta-D-Manp-(1-> residue, and mannose is substituted by acetyl. The prepared rhizoma polygonati polysaccharide provided by the invention has various effects of relieving ulcerative colitis, relieving intestinal injury induced by LPS (lipopolysaccharide), protecting intestinal mucosal barrier, regulating intestinal flora, improving antioxidant capacity and in-vitro antioxidant activity and the like.

The invention belongs to the technical field of biological medicines, and particularly relates to application of a mitochondrial miR-3473b inhibitor in preparation of a medicine for treating viral myocarditis. According to the present invention, the test results show that the mitomiR-3473b is the mitomiRNA with the highest up-regulation in the M1 macrophage, and has high expression in the myocardial macrophage of the CVB3 infected mouse; the invention further finds that the overexpression of the mitomiR-3473b promotes the polarization of the macrophage M1 and the oxidative damage of the mitochondria, while the knock-down of the mitomiR-3473b reverses the changes, and particularly, the mitomiR-3473b inhibitor relieves the viral myocarditis and the mitochondrial damage induced by the CVB3 in vivo. Therefore, the application potential and the development prospect of the mitochondrial miR-3473b inhibitor serving as the medicine for treating the viral myocarditis are effectively proved.

The invention discloses an organic trace element compound bag for improving eggshell quality. The feed additive is prepared from the following raw materials in parts by mass: 100 to 200 parts of hydroxy methionine copper complex, 200 to 300 parts of methionine iron complex, 200 to 300 parts of glycine iron complex, 150 to 200 parts of hydroxy methionine zinc complex, 100 to 150 parts of hydroxy methionine manganese complex, 1 to 2 parts of vitamin E, 1 to 2 parts of nicotinamide, 1 to 2 parts of vitamin A acetate, 10 to 20 parts of vitamin D and 50 to 150 parts of carrier. The invention also discloses a preparation method and application thereof. The organic trace element composite bag is high in absorption and utilization rate, can remarkably improve the eggshell strength, has different degrees of promotion effects on the activity of carbonic anhydrase and SOD, and reduces the dark spot egg rate; the feed has the advantages of safety, high efficiency, low emission, environmental protection, good stability and the like, and has huge application potential in the field of laying fowl feeding.

The application provides a composition and application thereof in improving salt stress resistance of plants, and belongs to the technical field of crop cultivation, and specifically provides a composition containing melatonin and adenine; the composition provided by the application can improve salt stress resistance of wheat, can promote growth recovery of the wheat, can improve ion balance, can reduce oxidative damage, and can promote recovery of proline and chlorophyll content.

This invention belongs to the field of fiber material technology, and relates to a composite fiber containing nano-natural tea fiber, its preparation method, and its application. The raw materials for preparing the composite fiber include nano-natural tea fiber and basic fiber pulp, wherein the nano-natural tea fiber is a yerba mate nanofiber microemulsion. This invention integrates nanotechnology into the preparation of natural tea fiber. The microemulsion method allows for the simultaneous and uniform dispersion of multiple effective components from tea leaves in the yerba mate nanofiber microemulsion, effectively showcasing the multifunctionality of the fabric. The microemulsion system exhibits high uniformity and long-term stability, eliminating the need for additional surfactants during spinning to achieve high dispersion of the nano-tea fiber in the spinning solution, ensuring the long-lasting effectiveness of the resulting functional fabric. Furthermore, yerba mate contains abundant tea polyphenols and unique yerba mate alkaloids, which further enhance the overall performance of the composite fiber.

The invention discloses a yak breeding method, and belongs to the technical field of livestock breeding. According to the breeding mode, the yaks in the three-month green grass period from June to August are grazed, the yaks in the three-month withering period from September to November are grazed and are fed with concentrated feed in a supplementary mode, and the yaks in the six-month hay period from December to May are bred in a barn feeding mode. The feed has very positive significance in increasing the weight of yaks, increasing the income of herdsmen, realizing balanced feeding and balanced slaughtering of yaks all year round and protecting the ecological environment.

The application discloses a method for applying lanthanum as a passion fruit cadmium reduction agent and improving fruit quality, which comprises the following steps: during the young fruit period to the mature period of the passion fruit, a compound regulation agent prepared from La(NO3)3 and water is sprayed on the leaves; the concentration of La(NO3)3 in the compound regulation agent is 40-53.3 mg / L in terms of La; the spraying is performed three times, and the first spraying is preferably performed during the young fruit formation period, the second spraying is performed during the initial swelling period, and the third spraying is performed during the early fruit filling period. Through scientific spraying of the lanthanum nitrate in the Cd-polluted soil, the passion fruit can be stably grown, the Cd accumulation amount of the fruit and the plant can be significantly reduced, the sugar and acid constitution, the vitamin C content and the antioxidant enzyme activity of the fruit can be improved, and the fruit quality and the stress resistance can be ensured.

The invention discloses a quercetagetin complex, quercetagetin is used as a ligand material, the unique space structure of the quercetagetin is easy to form a stable complex with metal elements, and the quercetagetin complex has the biological activity of the quercetagetin and also has the effects of metal trace elements. The quercetin and marigold microelement complex is applied as a feed additive, and compared with the mode that microelements are directly used as the feed additive, the quercetin and marigold microelement complex can reduce oxidative damage to vitamins in feed, so that the antioxidant index of animal blood is improved, the health condition of animals is improved, in addition, the utilization rate of the microelements can be increased, and the feed utilization rate is increased. The apparent digestibility of animals to copper, zinc, iron and manganese can be remarkably improved, and the method has huge application potential in the field of animal feed.

The invention provides a composition with a whitening effect as well as a preparation method and application thereof. The composition comprises the following raw materials in percentage by mass: 2-10% of polyhydric alcohol; 2-15% of grease; 0.1-1% of a thickening agent; 0.1-2% of an emulsifier; 1-5% of nicotinamide; 0-3% of 3-o-ethyl ascorbic acid; 0 to 0.4 percent of phenylethyl resorcinol; 0 to 1% of alpha-arbutin; 0-0.5% of a plant whitening compound II; 10% to 0.5% of nonapeptide-10%; 0 to 0.5% of tocopheryl acetate; 0 to 0.5 percent of inositol; 0-0.5% of a purslane extract; 0 to 0.5 percent of bisabolol; and the balance water. According to the composition with the whitening effect, through synergistic interaction of multiple components, the whitening effect is good, and meanwhile, the composition has the anti-allergy and soothing effects.

The invention discloses a compound probiotic preparation for relieving heat stress of sows and application of the compound probiotic preparation, and belongs to the technical field of animal feed. The compound probiotic preparation comprises clostridium butyricum, bacillus subtilis, bacillus licheniformis and enterococcus faecalis, wherein the final concentration of the clostridium butyricum in the feed is 1 * 10 < 6 > CFU / g, and the final concentration of the bacillus subtilis, the final concentration of the bacillus licheniformis and the final concentration of the enterococcus faecalis in the feed is 5 * 10 < 6 > CFU / g. The preparation provided by the invention can effectively reduce the stress hormone level and oxidative damage index in the blood of the sow under the heat stress condition, improve the activity of antioxidant enzyme, improve the feed intake and lactation performance in the lactation period, and reduce the backfat loss. Meanwhile, through the vertical transfer effect of the sows and the piglets, the intestinal morphology of the offspring piglets is remarkably improved, the intestinal barrier function and the antioxidant capacity are enhanced, and the weaning weight and the average daily gain of the piglets are improved, so that the negative effects of heat stress on the reproductive performance of the sows and the growth of the piglets are comprehensively relieved. The preparation is green and safe, and has important application value.