603 results about "Butyric acid" patented technology

The invention relates to the technical field of feed products, in particular to a fatty acid composition and application thereof in preparation of products for improving intestinal health. The fatty acid composition comprises arachidonic acid, docosahexaenoic acid, eicosapentaenoic acid, butyric acid and lauric acid, or a precursor substance capable of releasing the fatty acid in the digestive tract, and the mass of the fatty acid composition is calculated according to the mass of the arachidonic acid, the mass of the docosahexaenoic acid, the mass of the eicosapentaenoic acid, the mass of the butyric acid and the mass of the lauric acid. The additive is prepared from the following components in parts by weight: 7-10 parts of arachidonic acid, 3-7 parts of docosahexaenoic acid, 3-7 parts of eicosapentaenoic acid, 2-5 parts of butyric acid and 1-3 parts of lauric acid. The composition can effectively relieve inflammation and diarrhea, regulate intestinal flora and improve intestinal health, and drug resistance is not prone to being generated.

The invention relates to a bifidobacterium longum subsp. Infantis Imu-01 and an application thereof. Specifically, the invention provides bifidobacterium longum subsp.infantis Imu-01, a culture, a preparation and application of the bifidobacterium longum subsp.infantis Imu-01 in preparation of a product for improving the immune function. The bifidobacterium longum subsp. Infantis provided by the invention can regulate and control the immune level of an object, improve the content of butyric acid in intestinal tracts and improve the utilization of oligosaccharide in breast milk.

The invention provides a microecological preparation with an immunological enhancement function and application of the microecological preparation in antibiotic-free breeding of livestock and poultry, and relates to the technical field of agricultural biology. The microecological preparation with the immunological enhancement function comprises a probiotic component, a prebiotics component and an immunological enhancement component, and the probiotic component, the prebiotics component and the immunological enhancement component are respectively composed of lactic acid bacteria, bacillus, clostridium butyricum, fructo-oligosaccharide, yeast beta-glucan, astragalus polysaccharide and chitosan oligosaccharide. Wherein the lactic acid bacteria accounts for 30%-40%, the bacillus accounts for 20%-30%, the clostridium butyricum accounts for 10%-20%, the fructo-oligosaccharide accounts for 5%-10%, the yeast beta-glucan accounts for 3%-8%, the astragalus polysaccharide accounts for 2%-5%, and the chitosan The probiotics can enhance immunity and regulate intestinal tracts at the same time, the effect is improved by 40% or above compared with common probiotics, animals suffer less illness and grow fast, flora can resist high temperature and gastric acid through a special protection technology, the loss of viable bacteria is less than 5% after the probiotics are stored for 3 months, and the probiotics are stable by two times compared with conventional products.

The present invention belongs to the field of biotechnology, and discloses a composition for reducing the emission of odorous substances from poultry, comprising rutin or mulberry leaf extract, Clostridium butyricum, and Bacillus subtilis; the mass ratio of rutin or mulberry leaf extract, Clostridium butyricum, and Bacillus subtilis is 1-3:0.5-1.5:1; the specification of Clostridium butyricum is 1 billion CFU / g, and the specification of Bacillus subtilis is 1 billion CFU / g. The composition utilizes the flavonoid additive rutin or mulberry leaf extract, Bacillus subtilis, and Clostridium butyricum in combination, which can significantly improve the ability of Bacillus subtilis and Clostridium butyricum to inhibit odor. At the same time, the present invention also discloses the application and feed of the composition.

The invention discloses clostridium butyricum as well as a culture method and application thereof, belongs to the field of feed additives, and aims to solve the problems that a controllable fattening period is shortened and the efficacy of the clostridium butyricum cannot be completely exerted due to the fact that a wide range of clostridium butyricum needs a relatively long adaptation period for an endogenous intestinal environment of an animal. The clostridium butyricum from the North Naa Biotechnology Co., Ltd. Is cultured by simulating an animal endogenous environment in vitro, and after the clostridium butyricum which completely adapts to animal endogenous is obtained, the screened animal endogenous clostridium butyricum is coated by adopting a coating technology, so that the clostridium butyricum is not damaged by a strong acid environment in an animal stomach bag; the clostridium butyricum strain has the advantages that the clostridium butyricum strain can be used for preparing animal endogenous clostridium butyricum, a large quantity of animal endogenous clostridium butyricum can reach intestinal tracts and be released, and the animal endogenous clostridium butyricum can quickly adapt to animal intestinal environment due to higher adaptability of the strains, and can quickly form efficient colonization and functional expression under the condition of almost no adaptation period. The feed additive can be used as a biological feed additive.

The invention discloses a preparation method of bacterial powder of clostridium butyricum, and belongs to the technical field of bacterial powder preparation. The preparation method of the bacterial powder provided by the invention comprises the following steps: adding a regulator for regulating culture, heating, and adding a protective agent for freeze drying. Experimental results show that the preparation method of the bacterial powder provided by the invention has high viable bacterium yield, and the loss of clostridium butyricum in the preparation process of the bacterial powder is reduced; the bacterial powder obtained according to the bacterial powder preparation method still has the retention rate of 90% or above after being stored for a long time for 180 days at the temperature of 35 DEG C, which indicates that the survival ability of clostridium butyricum is remarkably improved. The preparation method of the bacterial powder is simple in process, easy to operate and environmentally friendly, and the cost cannot be remarkably increased. The clostridium butyricum microecological product provides a new strategy for preparation and activity maintenance of clostridium butyricum microecological products, can be applied to the fields of animal husbandry industry and medical care, and has a wide application prospect.

The present application relates to a kind of Bifidobacterium longum infantis subsp.Imu-01 and its application. Specifically, the present application provides Bifidobacterium longum infantis subsp.Imu-01, culture, preparation and preparation of immune function improving product application. The present application provides that Bifidobacterium longum infantis can regulate the immune level of the subject, improve the content of intestinal butyric acid, improve the utilization of human milk oligosaccharide.

The invention provides a composite quality control liquid for an electrochemical multi-parameter detector. The composite quality control liquid comprises a buffer volume, a quality control substance and a stabilizer, the stabilizing agent comprises 5 to 50 g / L of bovine serum albumin, 0.1 to 10 g / L of EDTA-2Na (Ethylene Diamine Tetraacetic Acid), 10 to 100 g / L of a viscosity regulator, 0.3 to 25 g / L of a preservative and 5 to 20 g / L of a surfactant; the preparation method comprises the following steps: adding components of the stabilizer into a buffer system, preparing a preparation solution, preparing mother liquor of each quality control substance, proportionally mixing glucose mother liquor, uric acid mother liquor, beta-hydroxybutyric acid mother liquor and cholesterol sodium sulfate and triglyceride composite mother liquor according to the target concentration of the quality control solution, and fixing the volume by using the preparation solution to obtain the quality control liquid. And fully and uniformly mixing to obtain the composite quality control liquid. The composite quality control liquid can ensure that uric acid is not degraded, cholesterol triglyceride is not separated out, the formula is mild, and active substances in a detection system are not influenced.

A beverage can include D ethyl 3-hydroxybutyrate, D 1,3-butanediol, D Beta hydroxybutyrate salts, D Beta hydroxybutyrate / D 1,3-butanediol monoester, D ethyl hydroxybutyrate, hydroxybutyrate, and / or D hydroxybutyric acid of at least 0.5 percent by volume. The percentage of D ethyl 3-hydroxybutyrate, D 1,3-butanediol, D Beta hydroxybutyrate salts, D Beta hydroxybutyrate / D 1,3-butanediol monoester, D ethyl hydroxybutyrate, hydroxybutyrate, and D hydroxybutyric acid can be between 5 and 19 percent, or can be higher than 19 percent. The beverage can be improved by the incorporation of flavor from hops and / or from other ingredients.

The invention relates to the technical field of agriculture, in particular to a method for improving silage fermentation quality based on biochar regulation and control, which comprises the following steps: fermenting a silage raw material added with biochar and cane sugar in a closed environment, the addition amount of the biochar being not less than 2% of the fresh weight of the silage raw material; the addition amount of the sucrose is not less than 2% of the fresh weight of the silage raw material; the fermentation days are more than or equal to 30 days, the pH value of the silage is less than or equal to 4.35, and the total content of lactic acid, acetic acid, propionic acid and butyric acid in the silage is more than or equal to 7.99% of the dry weight of the silage. When the biochar and the cane sugar are used as additives to prepare the silage through fermentation, on one hand, the pH value can be balanced through the addition of the biochar, the situation that the pH value is rapidly reduced possibly due to independent use of the cane sugar is avoided, further production of lactic acid in the later period is inhibited, the acidification process is effectively buffered, and continuous and stable lactic acid generation is promoted; on the other hand, the problems of increase of nutrient substance loss, promotion of generation of byproducts such as acetic acid, reduction of generation of lactic acid and the like when the biochar is independently added are avoided.

The invention discloses pediococcus acidilactici screening and application of pediococcus acidilactici in reducing allergenicity of whey and improving flavor, and belongs to the technical field of whey processing. The invention provides a Pediococcus acidilactici BC37, and the preservation number of the Pediococcus acidilactici BC37 is GDMCC No: 66262. The Pediococcus acidilactici BC37 can be used for preparing a Pediococcus acidilactici strain. When the pediococcus acidilactici BC37 is used for preparing the fermented whey, beta-lactoglobulin and lactose in the whey can be effectively degraded, and the degradation rates respectively reach 49.93% and 15.74%; meanwhile, after whey is fermented by the pediococcus acidilactici BC37, high-content flavor substances such as furfural, butyric acid and ethyl caprate are generated. Therefore, the pediococcus acidilactici BC37 provided by the invention has a great industrial application prospect in preparation of fermented whey products with low sensitization and unique flavor.

This invention discloses a strain of *Lactobacillus plantarum* Grx402 with the ability to promote intestinal absorption of short-chain fatty acids. *Lactobacillus plantarum* Grx402 was isolated from the intestines of long-lived individuals in Bama, Guangxi (CGMCC No. 28585). Using a Caco-2 cell model to construct an intestinal absorption model of short-chain fatty acids (SCFAs), it was found that *Lactobacillus plantarum* Grx402 can promote the absorption and transport of acetic acid, propionic acid, and butyric acid by intestinal epithelial cells, exhibiting excellent ability to promote intestinal absorption of short-chain fatty acids. It can be used to prepare dairy products or beverages that promote the intestinal absorption of short-chain fatty acids.

The invention discloses a method and a system for producing high-purity medium-chain fatty acid (MCFA) based on waste molasses two-stage regulation fermentation. Comprising the following steps: (1) diluting waste molasses, then adding a compound enzyme agent of pectinase, beta-glucanase and cellulase, and coupling microwave to assist treatment; (2) inoculating the pretreated waste molasses with a composite flora containing a clostridium kluyveri mutant strain and a Megasphaera elsdeni engineering bacterium, and carrying out a fermentation treatment on the waste molasses, wherein the composite flora contains the clostridium kluyveri mutant strain and the Megasphaera elsdeni engineering bacterium; (3) sequentially performing two-stage dynamic regulation and control fermentation on the waste molasses inoculated with the composite flora through a pH-stat control strategy to realize efficient conversion from butyric acid to hexanoic acid / octanoic acid; and (4) a hydrophobic hollow fiber membrane module is adopted to realize on-line removal of the product, and the inhibition effect of the product is relieved. According to the technology, the yield of the MCFA produced from the waste molasses reaches 0.45 g / g COD, the cost is reduced by 68% compared with that of a traditional substrate, and a new way is provided for recycling of sugar manufacturing waste.

The invention discloses a composition formula for assisting in protecting the liver and dispelling the effects of alcohol, and relates to the field of health food, the composition has an assisting effect on protecting the liver and dispelling the effects of alcohol, and the composition comprises the following composition components: milk thistle (0.466-0.482), puerarin (0.069-0.075), globe artichoke extract (0.065-0.072), glutathione (0.04-0.049), dandelion extract (0.151-0.164) and hydrogen butyric acid (0.146-0.162). By adopting the composition formula for assisting in protecting the liver and eliminating the alcohol, the composition has obvious effects of inhibiting the liver from generating lipid oxide and assisting the human liver in eliminating oxide substances, and meanwhile, the composition can be used for preventing lipid peroxidation damage by improving the activity of glutathione reductase and improving the antioxidant effect; therefore, the effects of protecting the liver and reducing injury are achieved. The components of the composition are equal-part particles formed by physical stirring and uniform mixing, the components are complementary and synergistic, the composition is safe and free of side effects to human bodies, the raw materials of the composition formula are convenient to purchase, the production benefits are high, and wide application is facilitated.

The invention relates to the technical field of microorganisms, in particular to saccharomyces cerevisiae CEC NW94 and application thereof. The invention provides the Saccharomyces cerevisiae CEC NW94, and the Saccharomyces cerevisiae CEC NW94 is used for brewing the wine, so that the contents of glycerol and lactic acid can be increased, and the yield of volatile acid can be reduced; the synthesis of volatile substances such as ethyl 2-methylbutyrate, isoamyl alcohol and linalool is promoted, and the generation of acetic acid is inhibited, so that the wine presents complex aroma of black fruits, mushrooms and the like, and the odor of herbaceous plants, herbal medicines, vinegar and the like is effectively reduced; in addition, the strain can improve the umami of the grape wine, and improve the aroma purity, the aroma concentration, the wine body, the aftertaste and the complexity. According to the method, the flavor substances of the dry red wine are controlled through a microbial metabolism regulation and control technology, and a new technical scheme is provided for high-quality wine production.

The invention discloses a holothurian culture feed additive and a preparation method thereof, and belongs to the technical field of aquaculture. According to the technical scheme, the holothurian culture feed additive comprises the following components in percentage by mass: 45%-55% of fish meal, 2%-3% of butyric acid bacteria, 25%-30% of compound probiotics, 2%-4% of a Chinese herbal medicine extract, 8%-12% of a fermentation substrate, 10%-15% of seaweed meal, 0.5%-1% of vitamin E, 0.5%-1% of selenium yeast and the balance of a carrier, the compound probiotics are composed of lactic acid bacteria, bacillus and photosynthetic bacteria according to the mass ratio of 2: 1: 1; the Chinese herbal medicine extract is a mixture of astragalus polysaccharide and an asarum extract in a mass ratio of 3: 1; through the synergistic effect of the fish meal, the compound probiotics, the Chinese herbal medicine extract and other components, nutrition balance and intestinal flora regulation and control are achieved, the problems of slow growth, intestinal diseases and water quality pollution caused by traditional feed are effectively solved, and the sea cucumber feed has the advantages that the survival rate of sea cucumbers is increased, and the culture benefits are increased.

The invention belongs to the technical field of biological fermentation hydrogen production. The invention provides a method for producing hydrogen by dark fermentation of pericarp biomass, which comprises the following steps: drying pericarp, crushing, and sieving to obtain powdery pericarp particles; performing acid heat pretreatment on the powdery fruit peel particles to obtain fruit peel pretreatment liquid; and inoculating the clostridium butyricum solution into the pericarp pretreatment liquid, and carrying out dark fermentation under an anaerobic condition to obtain a fermentation gas containing hydrogen. According to the method, the pericarp byproducts are used for dark fermentation for hydrogen production, so that high-value recycling utilization of agricultural wastes is realized; lignin in the pericarp is effectively removed through acid heat pretreatment, the availability of cellulose and hemicellulose is remarkably improved, conditions such as acid concentration, temperature and time are optimized, the inhibition effect of by-products is avoided, and the hydrogen production efficiency is remarkably improved; moreover, the method has the advantages of good stability and high repeatability, and provides a new technical approach for efficient production of clean energy.

A food product comprises L-lysine butyrate. The food product does not contain gluten and is not a baked product. Alternatively, the product is an oral dosage form comprising 25 mg to 5.0 g L-lysine butyrate. The oral dosage form is a tablet, a capsule, or a sealed packet containing powder. In another alternative, orally administering L-lysine butyrate may be used to: supplementing butyrate, provide a nootropic effect, treat a condition, losing weight, improve cognition, induce or maintain ketosis, improve athletic performance, or treat or mitigate mild-to-moderate pain.

The invention provides a feed for relieving weaning stress of lambs and a preparation method of the feed, and belongs to the field of animal feeds. The feed disclosed by the invention is prepared from the following components in parts by weight: 35-40 parts of puffed corn, 15-20 parts of enzymolysis soybean meal, 5-8 parts of fish meal, 5-8 parts of alfalfa meal, 0.3-3 parts of an organic trace element compound, 0.1-2 parts of a vitamin compound, 3-5 parts of whey powder, 0.5-1 part of butyrin, 0.3-0.5 part of glutamine and 0.2-0.3 part of a radix astragali-spina date seed compound extract. 0.2 to 0.3 part of xylooligosaccharide-xylanase compound, 0.05 to 0.1 part of pancreatin active peptide and 0.1 to 2 parts of complex microbial inoculant. The weaning stress of the lambs is reduced through a targeted intestinal tract-immunity-nerve regulation ternary synergistic formula, the digestive system development of the weaned lambs can be obviously improved, the activity of digestive enzymes can be improved, and therefore the weight gain of the lambs is obviously improved, and the lambs stably pass through the weaning period.

The invention discloses mongolian mongolian yeast and an application thereof. Relates to the technical field of fermentation. The invention provides a specific strain and application thereof in tobacco leaves. According to the tobacco leaf extracting solution fermented by the bacterial strain, the content of esters such as 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, tributyl phosphate, dihydroactinidiolide, dibutyl phthalate, 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) methyl propionate and methyl palmitate is remarkably increased, and the content of the esters such as 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, tributyl phosphate, dihydroactinidiolide, dibutyl phthalate, 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) methyl propionate and methyl palmitate is remarkably increased; three novel ester substances with fruit fragrance, rosin and other characteristic fragrances are newly generated, and the overall fragrance style is remarkably enhanced. It is shown that the aroma-producing caribeckia mongolica yeast MC-5 fermented tobacco leaf extracting solution has good aroma-producing capacity, and through the combined effect of enzymolysis and fermentation, the aroma-producing caribeckia mongolica yeast MC-5 fermented tobacco leaf extracting solution is expected to play an important application value in the field of quality improvement and aroma enhancement of tobacco leaf raw materials.

The invention discloses a nutritional composition for osteoporotic fracture recovery and a preparation method thereof, and relates to the field of food / health care products. The composition for osteoporotic fracture recovery is prepared from the following components in parts by weight: 600 to 900 parts of oligomeric collagen peptide, 300 to 600 parts of small molecular oyster peptide, 100 to 300 parts of fish oil extract, 100 to 300 parts of calcium beta-hydroxy-beta-methyl butyrate, 100 to 150 parts of fructo-oligosaccharide, 60 to 90 parts of L-carnitine, 20 to 50 parts of gamma-aminobutyric acid, 10 to 30 parts of calcium aspartate and 3 to 4 parts of taurine. According to the composition for recovering the osteoporotic fracture, provided by the invention, a nutritional and healthy food suitable for recovering the osteoporotic fracture of the old people is formulated aiming at the conditions of constipation, chewing and swallowing conditions, mouth feel, compliance and the like of the osteoporotic fracture of the old people, especially bedridden patients, and various nutrients are combined according to a specific ratio; the traditional Chinese medicine composition is beneficial to accelerating body recovery of patients, preventing muscle attenuation, subsequently improving sclerotin and muscle strength for a long time, and reducing the risk of cardiovascular diseases at the same time.

The invention discloses a prebiotic composition capable of proliferating intestinal beneficial flora and a preparation method thereof, and the prebiotic composition comprises the following raw materials in parts by weight: 35-45 parts of partially hydrolyzed complex gum, 30-40 parts of green banana resistant starch, 15-25 parts of enzymolysis okra polysaccharide and 3-5 parts of tea polyphenol. According to the composition, the partially hydrolyzed complex gum with specific molecular weight, the green banana resistant starch, the enzymolysis okra polysaccharide and the tea polyphenol are scientifically compounded, so that efficient proliferation of intestinal effective microbial communities and comprehensive and positive regulation and control of intestinal microenvironment are realized, and the composition is prepared by utilizing four components with complementary functions and different effects. The bacillus amyloliquefaciens can effectively proliferate traditional beneficial bacteria such as bifidobacteria and lactobacillus, can effectively nourish butyric acid producing bacteria such as clostridium praeparatum and inhibit growth of harmful bacteria, so that the bacillus amyloliquefaciens has the function of remarkably improving intestinal flora disorder caused by ampicillin, and has the functions of promoting generation of short-chain fatty acid and maintaining intestinal barriers.

The invention discloses a lactating sow feed and a preparation method thereof, and belongs to the field of feeds. The lactating sow feed comprises the following components in parts by weight: 70-80 parts of corn; 20-27 parts of soybean meal; 25 to 33 parts of puffed soybean powder; 1-4 parts of fish meal; 3-6 parts of a premix; 1.5 to 2.2 parts of loaded butyrin; the loaded tributyrin takes pine needle meal as a carrier, and the tributyrin is loaded on the pine needle meal through chitosan and a cross-linking agent. The lactating sow feed has the effects of promoting lactation of lactating sows and improving the health condition of the lactating sows.

The invention discloses application of a lucid ganoderma extract combined with clostridium butyricum in preparation of fat-reducing food or medicine. The invention finds that the ganoderma lucidum extract is combined with clostridium butyricum for use, so that the weight gain of a mouse induced by high-fat diet can be obviously slowed down, the epididymal fat weight of the high-fat mouse is reduced, and the lipid accumulation in the liver and serum of the mouse is reduced; according to the present invention, with the application of the polypeptide, the fat cell size is reduced, the expression of the key gene mRNA related to lipid metabolism and synthesis in the mouse liver is reduced, the intestinal flora of the mouse is regulated, the obesity can be well improved, and the important application prospect in the preparation of the drugs or food for treating diabetes, reducing blood fat, obesity and non-alcoholic fatty liver disease is provided.

The invention discloses a preparation method and application of Luohanshen resistant starch, and belongs to the technical field of medicine preparation. The preparation method comprises the following steps: adding probiotics (lactobacillus and bifidobacterium) into homogenate of peeled fresh Luohanshen, fermenting, filtering, aging, centrifuging, carrying out alcohol treatment, and drying to obtain the Luohanshen resistant starch. The Luohanshen resistant starch can play a role in preventing and / or treating constipation, remarkably promote the advancing distance of the activated carbon in small intestines of constipation mice, shorten the discharge time of the first black excrement, increase the number of black excrement discharged in 6 hours and the wet weight of the black excrement discharged in 6 hours, increase the content of MTL and SP in serum and increase the content of lactic acid, acetic acid, propionic acid and butyric acid in excrement. According to the preparation method, probiotics (lactobacillus and bifidobacterium) are adopted for synergistic aging to prepare the Luohanshen resistant starch, efficient preparation of the Luohanshen resistant starch is achieved, the content of the Luohanshen resistant starch is 76.89%, the process is simple, the product purity is high, energy consumption is low, and the preparation method is suitable for industrial production.

The invention belongs to the technical field of microbial fermentation, and particularly relates to a method for reducing fiber-binding protein content by microbial fermentation of sesame meal, in order to effectively utilize nutritional ingredients of the sesame meal, firstly, aspergillus oryzae yeast and kluyveromyces marxianus are utilized for aerobic fermentation, then enzymolysis is performed, and finally, the content of the fiber-binding protein is reduced. Finally, lactobacillus plantarum and clostridium butyricum are inoculated for anaerobic fermentation, the obtained sesame seed meal fermentation product contains various high-content nutritional ingredients including lactic acid, small peptide and crude protein, the content of fiber binding protein in neutral detergent fibers is reduced, the sesame seed meal fermentation product is used for animal feed, the feed-weight ratio can be effectively reduced, and the feed utilization rate is increased. The diarrhea rate of the piglets is reduced, and the growth performance of the piglets is improved.

The invention discloses red imported fire ant bait and a preparation method thereof. The invention relates to a red imported fire ant bait, which is prepared from the following components in percentage by mass: 56.76 percent to 61.99 percent of corn flour, 16.57 percent to 18.85 percent of dried meat floss, 16.50 percent to 18.90 percent of peanut oil, 3.08 percent to 4.22 percent of milk powder, 0.01 percent to 0.10 percent of ethyl butyrate, 1.34 percent to 1.70 percent of potassium sorbate and 0.01 percent to 0.50 percent of insecticide. Compared with the prior art, the solenopsis invicta bait has the following advantages that on the basis of background baits (corn flour, dried meat floss, peanut oil and milk powder), potassium sorbate keeps the freshness of the baits, a trace amount of ethyl butyrate is added, the appetite of solenopsis invicta is further stimulated, the palatability of the baits to the solenopsis invicta is improved, and the service life of the solenopsis invicta bait is prolonged. Particles with the average particle size of 1.5 mm are prepared through a pelletizer and are suitable for carrying of the solenopsis invicta, so that the attraction of the bait to the solenopsis invicta is further enhanced.

The invention provides a degradable plastic bag material and a preparation method thereof, and belongs to the field of plastic bag materials. The degradable plastic bag material is prepared from the following chemical components: 40 to 50 parts of polylactic acid, 15 to 25 parts of 3-hydroxybutyrate-co-4-hydroxybutyric acid copolymer, 5 to 15 parts of silane coupling agent modified starch, 3 to 8 parts of acetylated bamboo source nano cellulose, 5 to 15 parts of furan-terminated polylactic acid copolymer, 3 to 8 parts of bismaleimide dodecanedioate, 2 to 6 parts of coffee residue loaded WO3 and TiO2 and 1 to 5 parts of epoxidized soybean oil, the composition comprises the following components in parts by weight: 1-3 parts of sodium alginate microencapsulated lipase, 1-3 parts of quaternary ammonium salt modified hydrophilic kaolin, 0.1-1 part of zinc phenylphosphate and 0.1-0.8 part of polycarbodiimide. According to the application, the balance between the mechanical property and the degradation rate of the plastic bag material is realized through light-enzyme synergistic trigger degradation and dynamic covalent network regulation and control.

The invention discloses lactococcus lactis M6 and application thereof, and belongs to the technical field of microorganisms. The lactococcus lactis M6 provided by the invention is obtained by separating and purifying a kiwi fruit sample picked in Sichuan of China, has multiple functions of high yield of gamma-aminobutyric acid (GABA), high yield of butyric acid, oxidation resistance, antibacterial performance and the like, and has great industrial application value.

The invention belongs to the field of food nutrition and functional factors, and particularly relates to a method for preparing ovotransferrin hydrolysate with high immunocompetence based on an adult gastrointestinal simulated digestion system. According to the method, ovotransferrin is treated through the stomach and intestine of a simulated adult, OVT hydrolysate is prepared, and the OVT hydrolysate contains HTEGSTT, TTSY and / or RTAGWVIPMG. The invention finds that the immunomodulatory activity of OVT is enhanced after gastrointestinal digestion and hydrolysis, the OVT is more easily hydrolyzed in simulated adult digestive juice than in infant digestive juice, and a contrast experiment shows that the nutrition intervention of OVT adult and infant simulated digestion products can promote the generation of short-chain fatty acids such as acetic acid, propionic acid and butyric acid; the swelling injury caused by inflammation to small intestine mucous membrane tissues is effectively relieved, so that the intestinal barrier immune function is obviously improved, and the OIA shows higher intestinal immune activity than the OIB.