184 results about "Microecology" patented technology

The invention discloses bacillus velezensis as well as fermentation product filtrate and a biological product thereof, and belongs to the technical field of microorganisms, a bacillus velezensis BTN-HB-F4 strain is separated and purified from prinsepia utilis royle in Harba snow mountain in Yunnan province, the fermentation product filtrate of the bacillus velezensis has excellent HAS inhibition capacity and remarkable DPPH and ABTS free radical scavenging capacity, and the biological product of the bacillus velezensis has the advantages that the biological product can be used for preparing biological products of the prinsepia utilis royle; a good anti-oxidation effect can be realized; secondly, under various concentrations, fermentation product filtrate can remarkably reduce the proportion of SA-beta-Gal positive cells, gene expression of matrix metalloproteinase 3 can be remarkably inhibited, and a good anti-aging effect is achieved; in addition, fermentation product filtrate can remarkably inhibit generation of zebra fish melanin and has a good whitening effect; the secretion amount of cell inflammatory factors IL-6 and TNF-alpha can be remarkably inhibited, and a good relieving effect is achieved; finally, the fermentation product filtrate can effectively inhibit the growth of pathogenic bacteria staphylococcus aureus, and has the potential of regulating the skin micro-ecology.

The invention relates to the technical field of microorganisms, and discloses a multifunctional compound probiotic composition which comprises the following raw materials in percentage by mass: 40-50% of probiotics; 30%-40% of a microcapsule embedding material; prebiotics: 10%-25%; 1%-5% of auxiliary materials; the invention also provides a preparation process of the multifunctional compound probiotic composition. The preparation process comprises the following steps: S1, culturing the probiotics and detecting the activity; s2, a microencapsulation process: preparing a multi-layer microcapsule through a spray drying method and an emulsion crosslinking method, and embedding the probiotics; and S3, mixing the microcapsules with prebiotics and auxiliary materials to obtain the multifunctional compound probiotic composition. By adopting a composite probiotic compatibility technology and through the synergistic effect of different strains, the stability and functionality of intestinal microecology are enhanced, and the effects of improving the survival rate of probiotics in gastrointestinal tracts, promoting planting of beneficial bacteria and enhancing the immunoregulation ability are achieved.

The invention relates to a probiotic agent for regulating an intestinal environment and an application of the probiotic agent. The bacterial strains in the probiotic agent for regulating the intestinal environment comprise a Bifidobacterium animalis subsp. Lactis C-1 bacterial strain and a Lactobacillus gasseri CKCC 1913 bacterial strain, and the bacterial strains in the probiotic agent for regulating the intestinal environment comprise a lactobacillus plantarum subsp. Lactis C-1 bacterial strain and a lactobacillus gasseri CKCC 1913 bacterial strain, a lactobacillus plantarum subsp. Lactis CKCC 1913 bacterial strain, a lactobacillus plantarum subsp. Lactis CKCC 1913 bacterial strain and a lactobacillus plantarum subsp. Lactis CKCC 1913 bacterial strain. A synergistic interaction relationship exists between the two bacteria, so that the intestinal micro-ecological environment can be regulated, the intestinal injury can be relieved and the intestinal barrier function can be improved by reducing the level of inflammatory factors, balancing the content of gastrointestinal regulatory peptides, promoting intestinal peristalsis and other action mechanisms. Therefore, the probiotic agent is suitable for preparing a preparation with the efficacy of preventing, improving or treating constipation and other inflammatory diseases.

The invention belongs to the technical field of biological medicines, and discloses a probiotic and prebiotic composition for improving intestinal microecology and assisting in resisting food allergy, and the composition comprises bifidobacterium longum and oligosaccharide in a mass ratio of (1-3): (1-3). The probiotic and oligosaccharide composition provided by the invention is clear in mechanism and wide in application range, and the effect of relieving food anaphylactic reaction is achieved by enhancing intestinal barriers and regulating intestinal flora. And under the participation of the oligosaccharide, the anti-allergic effect of the probiotics is obviously enhanced. The invention can solve the problem that the existing anti-allergic medicine treats both symptoms and root causes, simplifies the composition, defines the action mechanism of the composition, and expands the range of applicable people.

The invention relates to the technical field of crop straw treatment and soil improvement, in particular to a rice straw returning method for improving soil fertility, which mainly comprises the following steps: crushing rice straws, soaking with a sodium hydroxide solution, and drying; then selecting specific strains, mixing and fermenting to prepare a microbial agent; preparing a composite additive in proportion; within 1-2 days after the rice is harvested, the pretreated straw, the microbial agent and the composite additive are applied to the field, deep ploughing is conducted, and irrigation is conducted; and finally, performing rotary tillage and soil preparation after straw decomposition, and monitoring and adjusting the pH value of the soil when next-stubble crops are planted. According to the method, straw is pretreated, lignin is destroyed through a sodium hydroxide solution, the particle size is accurately controlled, drying is conducted in cooperation, the microbial decomposition efficiency is improved, straw and soil are fully mixed through accurate ploughing in the field, decomposition is accelerated into nutrients, the straw can be powerfully decomposed through a microbial agent, and the soil micro-ecology is improved; the composite additive supplements various nutrients and enhances the water and fertilizer retention capability of soil.

The invention discloses a composition for regulating scalp micro-ecology and application thereof, and relates to the technical field of daily chemical products. The composition for regulating scalp micro-ecology comprises the following components: emu oil, melaleuca alternifolia leaf oil, Brazil green propolis and hydrogenated castor oil. The invention provides a composition for regulating scalp microecology and application thereof, the composition is prepared by compounding an anti-inflammatory and antibacterial component emu oil with melaleuca alternifolia leaf oil, Brazilian green propolis and hydrogenated castor oil, the composition has synergistic bacteriostasis and anti-inflammation effects, keeps scalp microbe balance, reduces red and swollen skin and itching, and also can promote the regeneration capacity of skin tissue cells.

The invention discloses a multi-stage composite constructed wetland construction method based on micro-ecological optimization, and relates to the technical field of constructed wetland ecological restoration. According to the method, fluctuation characteristics of pollutant concentration and hydraulic load and coupling risks of the fluctuation characteristics are systematically and quantitatively recognized, a high-disturbance risk area and an induction succession area are accurately divided, and a multi-stage composite constructed wetland is constructed. The micro-ecological state and succession potential of the wetland are dynamically monitored and evaluated, the wetland type layout is scientifically regulated and controlled on the basis of the hydraulic path resistance index, the non-linear impact of pollution impact on micro-ecology is effectively relieved, the ecological self-repairing capacity and toughness of the wetland system are improved, the function passivation phenomenon is avoided, and the method is suitable for large-scale popularization and application. Meanwhile, the resource allocation efficiency and the pollution treatment effect are improved, the operation and maintenance cost is reduced, and the adaptability and continuous purification capacity of the constructed wetland to the complex polluted water body are remarkably enhanced.

The invention relates to the technical field of agricultural planting, in particular to a Northeast black soil acidification improvement method, which realizes efficient and lasting soil remediation through the synergistic effect of humic acid-calcium complex targeted application, microbial agent activation and green manure planting. According to the technical scheme, the method comprises the steps that soil is partitioned, a first acidification area and a second acidification area are divided according to pH values, humic acid-calcium complexes are applied in a differentiated mode, and pH responsiveness is used for releasing # imgabs 0 # for neutralizing # imgabs 1 # and passivating # imgabs 2 #. The fungus fungicide is applied in furrows, and # imgabs3 is transported to a root system through a hypha network, so that the calcium utilization rate is increased. Soybeans are sown, citric acid is sprayed, mineral calcium is activated through root exudates, and organic matter input is increased. The humic acid-calcium complex is preferentially precipitated in the acidification area. Hypha-root systems cooperatively construct an anti-acidification micro-ecology, so that the yield of crops is increased. The method is suitable for rapid restoration and sustainable management of the severely acidified soil in the northeast black soil area.

The invention provides a comprehensive 16S automatic analysis method and process based on Web, and from upstream sequencing data processing to downstream data analysis, the most common analysis items at present and 16S advanced analysis are included. And meanwhile, the analysis content is modularized, the data mining method and the like are diversified and deep, and different analysis modules can be selected according to individual needs. The method not only can help researchers without any biological information background to carry out 16S research on flora micro-ecology, but also can overcome the defects of some existing 16S analysis processes, can obtain an accurate and comprehensive analysis result, and meets various analysis requirements.

The invention belongs to the technical field of microorganisms, and particularly discloses a morchella growth-promoting strain Clonostachys roseMSF05, the classification name is Clonostachys rosea, and the preservation number is GDMCC No: 65937, morchella is used as a precious edible and medicinal fungus, the planting scale is continuously enlarged, but the soil continuous cropping problem has become a main obstacle for soil-covered cultivation and fruiting of the morchella, the soil microorganism structure of the morchella is studied, and the morchella growth-promoting strain CClonostachys roseMSF05 can be used for promoting growth of the morchella. And the beneficial microbial strain clonostachys rosea MSF05 is screened out, so that technical support is provided for rebuilding soil micro-ecology, relieving continuous cropping obstacles of morchella esculenta and biological prevention and control.

The invention discloses a Bacillus velez, a fermentation product filtrate thereof and a biological product thereof, belonging to the field of microbial technology. A Bacillus velez BTN-HB-F4 strain is obtained by isolating and purifying green prunes from Haba Snow Mountain in Yunnan Province. The fermentation product filtrate thereof has excellent HAS inhibition ability and significant DPPH and ABTS free radical scavenging ability, and can achieve good antioxidant effect. Secondly, at various concentrations, the fermentation product filtrate thereof can significantly reduce the proportion of SA-β-Gal-positive cells, can significantly inhibit the gene expression of matrix metalloproteinase 3, and has good anti-aging effect. In addition, the fermentation product filtrate thereof can significantly inhibit the production of zebrafish melanin, and has good whitening effect. The fermentation product filtrate can significantly inhibit the secretion of cellular inflammatory factors IL-6 and TNF-α, and has good soothing effect. Finally, the fermentation product filtrate thereof can also effectively inhibit the growth of pathogenic bacteria Staphylococcus aureus, and has the potential to regulate skin microecology.

The invention relates to the field of soil improvement, in particular to a saline-alkali soil improvement method which comprises the specific steps of deep ploughing and crushing, drainage system building and pesticide spreading, high-molecular polymer application and microbial agent inoculation. Good soil conditions are created through a physical improvement method, the soil salinity and alkalinity are rapidly reduced through a chemical improvement method, the salt-tolerant microbial agent can decompose organic matter, improve soil micro-ecology, reduce salinity toxicity and promote plant growth, and the saline-alkali soil improvement efficiency and effect are remarkably improved through mutual cooperation of the three methods; the method reduces the excessive use of chemical substances in a single chemical improvement method, realizes the ecological restoration of the saline-alkali soil through a physical method, a chemical method and a microbiological method, reduces the negative influence on the environment, improves the sustainability of improvement, effectively improves the soil structure and the ecological environment, provides good conditions for plant growth, and realizes the efficient utilization of the saline-alkali soil.

The invention discloses a recombinant M13 bacteriophage, a K88 targeting antibacterial preparation containing the bacteriophage and application of the K88 targeting antibacterial preparation, and belongs to the field of biotechnology and veterinary medicine. The antibacterial preparation comprises a recombinant M13 bacteriophage rM13; a K88 targeting element is displayed on a tail filament pIII protein of the recombinant M13 bacteriophage, and the K88 targeting element is a nano antibody NBK88 of which the amino acid sequence is as shown in SEQ ID NO: 1. Through engineering modification, the rM13 can specifically recognize, infect and split enterotoxigenic escherichia coli expressing K88 fimbriae, so that the host range of the wild type M13 is accurately guided to pathogenic bacteria. The invention also provides application of the preparation in preparation of medicines for preventing or treating ETEC infection, and the dosage form of the preparation is preferably a freeze-dried preparation or an enteric-coated preparation capable of being released in a targeted intestinal tract. The preparation provided by the invention has the remarkable advantages of strong targeting property, self-proliferation, no damage to intestinal microecology and capability of overcoming bacterial drug resistance.

The invention discloses a novel bifidobacterium infantis strain and application of extracellular products of the novel bifidobacterium infantis strain in delaying skin aging and regulating skin micro-ecology, and bifidobacterium infantis is bifidobacterium infantis BSJM24L007 which is preserved in the China General Microbiological Culture Collection Center (CGMCC for short) and has the preservation number of CGMCC No.33258. The invention further discloses a preparation method of the novel bifidobacterium infantis strain and the application of the extracellular products of the novel bifidobacterium infantis strain. The bifidobacterium infantis extracellular product prepared by the invention has an ideal effect of delaying skin aging, enables the skin to be more compact and elastic, reduces the generation of wrinkles and maintains normal metabolism of the skin, has relatively high safety, can effectively reduce the skin infection problem caused by staphylococcus aureus and propionibacterium acnes, and has a good application prospect. Skin infection and inflammation are reduced, skin health is promoted, and skin micro-ecological balance is maintained. The requirements of a modern skin external preparation on functionality and safety are met.

The invention discloses a microbial fermentation feed capable of improving disease resistance of broiler chickens and a preparation method of the microbial fermentation feed, and belongs to the technical field of feed preparation. Comprising the following raw materials in parts by weight: 50-60 parts of corn flour, 20-25 parts of soybean meal, 5-8 parts of fish meal, 8-12 parts of tea seed cakes, 5-8 parts of mulberry leaves, 3-5 parts of dandelions, 0.1-0.3 part of zinc sulfate, 0.05-0.1 part of allicin and 0.5-1 part of a compound microbial agent. Wherein the compound microbial agent is prepared from lactobacillus plantarum, bacillus subtilis, candida utilis and bacillus licheniformis. The raw materials in parts by weight are mixed and fermented to obtain the microbial fermented feed capable of improving the disease resistance of the broiler chickens. According to the microbial fermentation feed disclosed by the invention, low-cost natural raw materials (such as tea seed cakes, mulberry leaves and dandelions) and the compound microbial agent are comprehensively utilized, so that the disease resistance of broilers can be comprehensively improved on the basis of reducing the cost; besides, the compound microbial agent can be fully fermented, the content of functional substances such as short-chain fatty acid (SCFAs) and antibacterial peptide is increased, the intestinal microecology can be effectively regulated and controlled, the immune function can be effectively enhanced, and the survival rate and disease resistance of the broiler chickens are improved.

The invention discloses a scalp micro-ecological regulation washing and care composition containing lactobacillus metagen, and particularly relates to the technical field of daily chemical washing and care products. The washing and care composition comprises the following specific components in percentage by weight: 3%-8% of lactobacillus metagen, 1%-3% of prebiotics, 0.05%-0.2% of natural antibacterial peptide, 0.5%-1.5% of a ceramide compound, 0.3%-0.7% of a pH regulator, 0.5%-2% of a microcapsule wrapping agent, 0.2%-0.6% of a natural preservative and the balance of deionized water, wherein the total percentage is 100%. According to the invention, various components are scientifically compounded, so that the washing and care composition has an excellent effect, the lactobacillus retrogen, the natural antibacterial peptide and the natural preservative cooperate to inhibit bacteria, the diameter of an inhibition zone for common pathogenic bacteria is 14-20mm, and the prebiotics and the lactobacillus retrogen regulate scalp micro-ecology, so that the flora diversity index is increased by 30-45%; the ceramide compound and dipotassium glycyrrhizinate cooperate to reduce the TEWL value by 30%-50%, the scalp barrier is repaired, and the product is good in stability, safe, reliable and capable of comprehensively caring scalp health.

The invention belongs to the technical field of greenhouse vegetable salinization soil improvement, and particularly relates to a preparation method of a compound microbial agent for greenhouse vegetable salinization soil improvement. Comprising the following steps: S1, preparing a fermentation substrate: mixing bran, molasses, ammonium sulfate, rice hull powder and water according to a mass ratio, and sterilizing at 121 DEG C for 30 minutes for later use; s2, preparing biochar: preparing modified biochar with MgO loading capacity of 4-6% and magnesium-loaded biochar with MgO loading capacity of 5-7%; s3, preparing a compound bacterium suspension: respectively preparing bacillus amyloliquefaciens, bacillus mucilaginosus, trichoderma viride, rhizobium and saccharomyces cerevisiae into 5 * 10 < 10 > CFU / mL bacterium suspensions, and mixing the bacterium suspensions according to a volume ratio to obtain the compound bacterium suspension. Through cooperation of multiple strains and charcoal-loaded magnesium, the salinization index of the facility vegetable soil can be remarkably reduced, the soil fertility is comprehensively improved, the micro-ecology of the soil is restored, and the growth and quality of vegetables are promoted.

The invention belongs to the technical field of microorganisms, and particularly relates to combined lactobacillus salivarius and application thereof in female genital tract health. The preservation number of the strain is CCTCC NO: M20231719, and the strain has good bacteriostatic ability and dendritic cell (DC) maturation / activation stimulation ability, has no potential safety problem, can regulate vaginal micro-ecological balance, prevent infection caused by exogenous bacteria, effectively improve tumor immunosuppression microenvironment, and has good application prospects. And the method has very important significance on prevention / treatment of vaginal dysbacteriosis patients, gynecological tumors and precancerous lesions thereof.

The invention discloses an aquatic product breeding feed capable of improving flavor and a preparation method thereof, and particularly relates to the technical field of breeding feeds, the feed comprises fish meal, soybean meal, soybean protein concentrate, shrimp meal, chicken meal, wheat flour, cuttlefish paste, phospholipid, grease, mineral substances, vitamins, lettuce polyphenol, an antioxidant, a mildew preventive and the like. Wherein the lettuce polyphenol is a key functional component. The preparation method comprises the following steps: pretreating the raw materials, mixing step by step, adding grease by spraying, tempering, granulating, drying, screening, spraying the antioxidant and the like. The lettuce polyphenol regulates and controls an mTOR signal channel to promote flavor amino acid deposition and inhibit protein degradation, meanwhile, the intestinal microecology is improved, the antioxidant capacity and digestive enzyme activity are enhanced, and the content of flavor substances such as glutamic acid and glycine in aquatic products is remarkably increased. The method is suitable for culturing various aquatic products, and can effectively improve the flavor and quality of the cultured aquatic products.

The invention relates to the field of microorganism screening, in particular to a microorganism screening method capable of improving saline-alkali soil crop stress resistance and application thereof.The microorganism screening method comprises the following steps that S1, in saline-alkali soil with Na < + > larger than 0.6% and pH 8.5-10.0, suaeda glauca rhizosphere soil and root system tissue are collected and inoculated to 0.6 moL / L NaCl, and the saline-alkali soil is inoculated to a culture medium; in a liquid culture medium with the pH value of 8.0, through a gradient saline-alkaline stress enrichment-bifunctional bacterium collaborative screening technology and in combination with an embedding matrix and modified biochar compounded microbial screening agent, compared with the prior art, salt ion adsorption, flora survival rate improvement, root system nitrogen fixation and phosphate solubilizing bacterium standard-reaching rate improvement and crop biomass increase are synchronously realized, and the yield of the crops is increased. And moreover, the toxicity of salt ions is remarkably reduced, the soil micro-ecology is systematically optimized, and the method has a wide application prospect in marginal land agricultural development and saline-alkali soil ecological restoration.

The invention belongs to the technical field of bioengineering and microbiomics, and particularly relates to an acquisition method and application of a specific metabolic substrate of lactobacillus crispatus and application of a specific carbohydrate active enzyme CAZzyme gene and a polysaccharide utilization site (PUL). Genomes of lactobacillus crispatus and lactobacillus inertus are obtained from a public database, gene annotation is carried out on the genomes of the lactobacillus crispatus and the lactobacillus inertus, and a random forest model and a KEGG metabolic pathway diagram are combined to find specific CAZzyme genes, PUL and other genes with metabolic functions of the lactobacillus crispatus; a substrate which only lactobacillus crispatus can metabolize is searched based on the genome difference of the two bacteria, and the ability of the obtained substrate for promoting the growth of lactobacillus crispatus and inhibiting the growth of inert lactobacillus is evaluated through experiments. Growth and reproduction of the lactobacillus crispatus are promoted through the substrates, so that the lactobacillus crispatus accounts for a higher proportion in vagina microecology, the vagina is protected, and reproduction of other unfavorable bacteria is reduced. The assisted reproduction success rate is improved.

The present invention discloses the use of pantothenic acid in the preparation of anticaries preparations related to Streptococcus mutans, and anticaries preparations containing pantothenic acid. The invention belongs to the field of biomedicine technology. The anticaries preparations related to Streptococcus mutans include an acid production inhibitor for Streptococcus mutans, a growth inhibitor for Streptococcus mutans, an inhibitor of cariogenic toxins of Streptococcus mutans, and an inhibitor of interspecies competition of Streptococcus mutans. Pantothenic acid can be used to influence the acid production, growth, production of cariogenic toxins, and interspecies competition of Streptococcus mutans, thereby maintaining the balance of the oral microecology.

The invention relates to the field of oral cleaning products, in particular to oral antibacterial paste capable of deeply resisting bacteria and a preparation method of the oral antibacterial paste. According to the technical scheme, the incision smearing healing medicine capable of achieving rapid treatment is prepared from 15-25 parts of hydrated silica, 53-67 parts of sorbitol, 5.1-9.1 parts of water, 1.5-2.5 parts of cocamidopropyl betaine and 4-6 parts of glycerin, pathogenic bacteria are rapidly killed through triclosan, the micro-ecology is continuously adjusted through probiotics and plant extracts, the risk of drug resistance is reduced, and the healing effect is good. The plant anti-inflammatory components in the traditional Chinese medicine mixed extract are combined with the glycerol, so that red and swollen gums are relieved, wound healing is accelerated, then cocamidopropyl betaine is used for mildly cleaning oral mucosa, assisting in removing food residues and reducing bacterial attachment, and the anti-inflammatory effect is achieved. The toothpaste can deeply clean dead corners such as gingival gaps and deep mucous membranes, and can deeply play a role in the interior by virtue of an anti-bacteria and decomposition technology, so that the problem that a common oral product is limited in cleaning effect and only can clean the surface is solved.

The invention discloses a composite fiber material containing Miao medicine extract and bioactive polypeptide and application of the composite fiber material in preparation of underwear, and relates to the technical field of functional textile materials. Comprising a metabolite response type core layer, a flora adaptive type sheath layer and a dual-mechanism sensing release interface arranged on the surface of the core layer, according to the invention, on the basis of a core-sheath structure and a dual-mechanism sensing interface, the composite fiber can accurately respond to skin micro-ecology, directionally release Miao medicine extract and bioactive polypeptide, protect beneficial bacteria, inhibit harmful bacteria and prevent unbalance, and can also form a component-micro-ecology-skin collaborative closed loop; micro-ecology visualization is achieved through an AI E probe, washing resistance is achieved, the function is stable, the physical performance is matched with underwear, prebiotics are supplemented in the preparation process, the health value can be enhanced, sensitive skin is matched, and the discomfort risk is reduced.

The invention relates to the technical field of cut flower postharvest preservation, and discloses a preservation pre-treatment solution for maintaining moisture-nutrition-microecological balance in a storage period of babysbreath cut flowers and a synergistic application method thereof. The pre-treatment liquid is prepared from the following components in percentage by weight / volume: 15 to 30 g / L of cane sugar, 15 to 30 g / L of trehalose, 100 to 200 mg / L of 8-hydroxyquinoline citrate, 50 to 150 mg / L of citric acid, 50 to 100 mg / L of carboxymethyl chitosan, 0.3 to 1.0 g / L of lysozyme-chitosan compound, 5 to 15 mg / L of nano silver-loaded silicon dioxide, 0.1 to 1.0 g / L of manganese citrate and 0.5 to 1.0 g / L of calcium nitrate. And 5 to 10 mL / L of glycerol and 0.5 to 5.0 mL / L of Tween-20 in percentage by volume. Through component collaborative design-process precise control-package matching innovation, the bottleneck of double loss of water and nutrition in the storage period is broken through, the pain points of no flowering and gray mold outbreak after storage are solved, a whole-process nursing scheme is provided for long-distance and short-distance transportation and storage of the babysbreath cut flowers, the commodity rate of the cut flowers is remarkably increased, and the economic benefit is increased. The method is suitable for flower harvesting bases, cold chain transportation and wholesale markets, and is especially suitable for air transportation exits.

The invention provides the food calling type river crab feed, the application effect of the food calling type river crab feed in river crab culture shows that the food calling type river crab feed has remarkable advantages in the aspects of improving the growth performance, enhancing the immune function, optimizing the intestinal microecology, improving the water quality environment and the like, the use of the fish meal is reduced through the fermented vegetable protein, and the specific composite phagostimulant has the advantages that the utilization rate of the fish meal is reduced; the palatability of the river crab feed with the fish meal content reduced is improved, the feed coefficient is reduced, the unit economic benefit is improved, the problem of environmental pollution in the breeding process is effectively relieved, and the river crab feed has good ecological and economic dual values.

The invention discloses application of a stenotrophomonas maltophilia metabolite and a product of the stenotrophomonas maltophilia metabolite. The invention identifies a skin symbiotic bacterium, namely stenotrophomonas maltophilia, and provides an application of a metabolite of the stenotrophomonas maltophilia in anti-aging. The metabolite can regulate the balance of oxidized glutathione and glutathione in cells, improve the oxidation-reduction state in the cells, and regulate the internal oxidation-reduction balance and damage repair from the cellular level. The anti-aging scheme can fundamentally adjust the essential process of aging, and is high in effectiveness and good in persistence. The bacterial strain is a skin symbiotic bacterium, the metabolite of the bacterial strain is naturally compatible with the skin microecology, the adverse reaction can be reduced, the safety is good, and the affinity is high. The anti-aging effect of the stenotrophomonas maltophilia metabolite provided by the invention is verified by multi-dimensional experiments with quantitative indexes, and the stenotrophomonas maltophilia metabolite has strong scientificity and high reliability. The application scheme also provides another thought for developing more safe, effective and lasting anti-aging products, and the application potential is huge.

The invention discloses a composition for improving immunity and delaying senescence and a preparation method thereof. Belongs to the technical field of functional health. The composition comprises the following components in parts by mass: 5-50 parts of collagen, 10-80 parts of paeonia ostii tea, 1-20 parts of an antioxidant, 3-10 parts of an intestinal microecology regulator and 1-3 parts of an energy metabolism and nerve regulator. According to the invention, through multi-system cooperation and multi-target intervention, dual effects of immune enhancement and senescence delay are realized. Through scientific compounding and a special process, the product has the advantages of stable components, uniform activity and good solubility. Animal experiments and theoretical models show that immune organs can be effectively protected, accumulation of aging markers is reduced, and a solution is provided for development of comprehensive anti-aging health products.

The invention discloses an application of a prebiotic component in enhancing athletic ability and improving athletic performance. The prebiotic component is xylooligosaccharide. Animal experiments show that mice given with xylooligosaccharide can significantly improve the abundance of probiotics and enhance the muscle strength, constant-speed endurance and other movement functions of the mice. The xylooligosaccharide serving as an efficient prebiotic can be specifically utilized by specific probiotics in intestinal tracts, the abundance of the xylooligosaccharide is remarkably improved, growth of pathogenic bacteria is inhibited, then the micro-ecological environment of the intestinal tracts is optimized, and the exercise function improvement phenomena such as increase of muscle strength and delay of fatigue in endurance exercise are shown in behavioral tests. The cross-organ integration regulation and control from the intestinal microecology to the whole body physiological state and then to the athletic performance is reflected, so that the xylooligosaccharide has important significance in enhancing the athletic ability and improving the athletic performance.

The invention provides application of beta-1, 4-glucan type cellooligosaccharide in improvement of plant rhizosphere micro-ecology and enhancement of IAA signals, and belongs to the technical field of biological agriculture. The invention provides an application of beta-1, 4-glucan type cellooligosaccharide with the polymerization degree of DP2-DP5 in improvement of plant rhizosphere micro-ecology and enhancement of IAA (Indole Acetic Acid) signals. In the invention, beta-1, 4-glucan type cellooligosaccharide can induce plant immunity in a growth allowable PTI threshold range, so that a rhizosphere microflora structure is directionally remodeled, the relative abundance of beneficial microorganisms is improved, the potential pathogen load is reduced, rhizosphere IAA and related metabolites thereof can be increased, and'disease resistance without growth inhibition 'is realized. The invention further provides an application of the beta-1, 4-glucan type cellooligosaccharide combined with rhizosphere beneficial microorganisms in biological agriculture, and growth promotion and / or nodulation nitrogen fixation effects can be enhanced.