536 results about "Lactylate" patented technology

The invention relates to the technical field of medicine processing, and discloses mixed liquid filtering equipment for ciprofloxacin lactate medicine processing, which comprises a filtering tank, one side of the filtering tank is fixedly connected with a shell, the interior of the filtering tank is fixedly connected with a flow guide plate, the bottom of the filtering tank is fixedly connected with a funnel pipe, and the funnel pipe is fixedly connected with the shell. A filter bag is arranged at the bottom of the guide plate, long rods are fixedly connected to the periphery of the bottom of the filter bag, a spray-washing pipeline and a rubber plate are further included, and a cleaning assembly is arranged at the top of the filter bag. According to the mixed liquid filtering equipment for ciprofloxacin lactate medicine processing, replacement and alternate use of a filter bag can be achieved, impurities in the used filter bag are poured out, and the filter bag is washed from inside to outside after being turned over, so that the influence of downtime of manual maintenance of the equipment on the processing efficiency of the equipment is reduced, and the processing efficiency of the equipment is improved. The influence on the filtering quality of the medicine mixed liquid caused by impurities accumulated in the filter bag is avoided.

The invention belongs to the field of food processing, and particularly relates to an ostrich meat preservative and a preservation method. The ostrich meat preservative provided by the invention is prepared by matching and mixing the chitosan, the nisin and the tea polyphenol according to a specific proportion, so that the refrigeration refreshing time of the ostrich meat treated by the preservative can be effectively prolonged, the ostrich meat can maintain a relatively high L * value and a * value within 16 days of storage, the deterioration of meat color is delayed, the water-retaining property is remarkably improved, and the quality of the ostrich meat is improved. The content of thiobarbituric acid reactants and volatile basic nitrogen is obviously reduced, and fat oxidation and protein degradation are inhibited; the total number of bacterial colonies and the number of microorganisms such as coliform bacteria, pseudomonas, mould and saccharomycetes are obviously reduced. The growth and reproduction of putrefying bacteria can be effectively inhibited, and the cold fresh shelf life is prolonged.

The invention belongs to the technical field of food processing, and particularly relates to fermented beef jerky and a preparation method thereof. The preparation method of the beef jerky comprises the following steps: (1) removing fascia and fat from fresh cattle hind leg meat, washing with clear water, and cutting into meat slices; (2) adding table salt, glucose, white granulated sugar and sodium nitrite into the sliced meat, uniformly mixing, adding a fermentation inoculant which comprises staphylococcus calcaratus, pediococcus acidilactici, bifidobacterium bifidum and Witzia ciliaris, and fermenting; and (3) after fermentation, drying and cooling to obtain the fermented beef jerky. Specific strains are selected to form a fermentation inoculant for fermentation, and the prepared fermented beef jerky is high in free amino acid and soluble peptide content, low in nitrite residual quantity, uniform red brown in color and slightly bright in surface, and belongs to high-quality beef jerky.

The invention relates to the technical field of microbiology and food processing, in particular to pediococcus acidilactici and application of the pediococcus acidilactici in preparation of a brain-intestinal axis regulating efficacy metagen product.The high-activity pediococcus acidilactici DY-1 is separated out from natural fermentation pickles of super-polyselenium plant cardamine violifolia for the first time; the strain can be widely applied to fermentation of high-selenium plant-based food, can significantly promote glycolysis release of selenium-containing active substances, has good acid resistance, high protease activity and high lipase activity, can fully ferment plant-based fermentation raw materials, and has high yield. Glycolysis of macromolecular substances such as protein, saccharides and fat is facilitated, accumulation of active ingredients such as essential amino acid, unsaturated fatty acid, alkaloid and phenolic substances is promoted, and the edibility and functionality of the product are improved; and the organic selenium-rich metagen product prepared by sterilizing the fermentation mixture can synergistically improve human body cognition and emotion regulation regulated by microorganism-intestinal-brain axis.

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.

The invention provides a foamed bead and a preparation method thereof. The foamed bead comprises poly-L-lactic acid and poly-D-lactic acid, wherein the mass percentage content of an L-lactic acid monomer of the poly-L-lactic acid is greater than or equal to 98%; the mass percentage content of a dextrolactic acid monomer of the poly-dextrolactic acid is greater than or equal to 98%. The foamed bead provided by the embodiment of the invention comprises poly-L-lactic acid with high optical purity and poly-D-lactic acid with high optical purity, and the poly-L-lactic acid and the poly-D-lactic acid form a stereocomplex crystal in the processing process, so that the thermally induced deformation temperature of the foamed bead is increased.

The invention discloses lactobacillus plantarum, the Latin name of the lactobacillus plantarum is Lactiplantarum, the lactobacillus plantarum is named as BQ-3, the lactobacillus plantarum is preserved in Guangdong Microbial Culture Collection Center on January 15, 2025, and the preservation registration number of the lactobacillus plantarum is GDMCC No.65791; secondly, the invention further discloses a microbial fermentation agent, and the effective components of the microbial fermentation agent comprise the lactobacillus plantarum. In addition, the invention also discloses an application of the lactobacillus plantarum or the microbial fermentation agent in fermentation of the rotten vegetable leaves, and an application of the fermented rotten vegetable leaves prepared by the application of the lactobacillus plantarum or the microbial fermentation agent in fermentation of the rotten vegetable leaves in fattening feed. The lactobacillus plantarum strain disclosed by the invention has the beneficial effects that the lactobacillus plantarum strain is separated and screened from naturally-fermented rotten vegetable leaves, and has the characteristics of high lactic acid production speed and high yield; when applied to the fermentation of the rotten vegetable leaves, the strain can quickly produce acid, reduce the pH value, reduce the loss of dry matters, retain nutrients, inhibit the generation of ammoniacal nitrogen and putrefying acid, significantly improve the fermentation quality and prolong the storage life; the feed additive can promote fattening growth of livestock when applied to feeds.

The invention belongs to the field of microorganisms, and particularly relates to lactococcus lactis Jlus 880314 and application thereof. The strain is classified and named as Lactococcus lactis, and is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing; the preservation number of the strain is CGMCC No. 33961. Time-of-flight mass spectrometry analysis shows that nisin exists in a metabolite of the strain, and the strain can be used for producing nisin. The compound shows an excellent and wide antibacterial function in antibacterial experiments, can be used for preparing antibacterial drugs, particularly has a remarkable inhibiting effect on growth of gram-negative bacteria and fungi, can be used for preparing drugs for relieving or treating enteritis, or preparing drugs, nourishment or health care products for regulating gastrointestinal tract micro-ecological balance of people or animals, and can be used for preparing medicines for relieving or treating enteritis. The compound can also be used for preparing antibacterial food additives and / or animal feed additives. A hemolysis experiment result shows that hemolysis is avoided, toxic and side effects are small, and wide development prospects and application values are achieved.

The invention relates to a probiotic preparation for improving intestinal health of pets and application of the probiotic preparation. The bacterial strains in the probiotic preparation consist of a bacillus coagulans BC66 bacterial strain with the preservation number of CGMCC (China General Microbiological Culture Collection Center) 21879, a pediococcus acidilactici PA153 bacterial strain with the preservation number of CCTCC NO: M 2023230, a lactobacillus plantarum LP194 bacterial strain with the preservation number of CGMCC 21766, a bifidobacterium animalis BA20 bacterial strain with the preservation number of CGMCC No. 21830 and a lactobacillus reuteri LR108 bacterial strain with the preservation number of GDMCC No: 63095. According to the probiotic preparation, five specific probiotics are compounded, the five strains are matched and promoted with one another, and synergistic interaction is achieved on the effect of improving the intestinal health of pets, specifically, the digestive ability of the pets on nutrients is improved; the immunity of pets is improved and the diarrhea rate is reduced; the content of beneficial bacteria in intestinal tracts of pets is increased.

The invention discloses an ionic conductive gelatin hydrogel with high compression strength and a preparation method thereof. The preparation method of the ionic conductive gelatin hydrogel with high compression strength comprises the following steps: respectively preparing a gelatin solution and a montmorillonite dispersion liquid; adding sodium lactate into the gelatin solution, and heating and stirring to obtain a gelatin-sodium lactate mixed solution; adding the montmorillonite dispersion liquid into the gelatin-sodium lactate mixed solution, heating and stirring to obtain a precursor solution, and cooling to obtain the gelatin-sodium lactate-montmorillonite hydrogel. According to the preparation method provided by the invention, the defects of poor mechanical property, poor ionic conductivity and the like of the gelatin hydrogel can be improved, and then the gelatin hydrogel with high compression strength and ionic conductivity is prepared.

The invention discloses a composition for regulating scalp micro-ecology, which comprises a component A and a component B, the component A is prepared from the following components in parts by weight: 5 to 15 parts of amur corktree bark extract, 3 to 14 parts of rhizoma coptidis root extract, 5 to 15 parts of radix sophorae flavescentis extract, 2 to 8 parts of rhus chinensis insect gall extract, 2 to 18 parts of fructus cnidii extract, 3 to 10 parts of pericarpium zanthoxyli extract, 1 to 5 parts of camphor tree root extract, 3 to 12 parts of ginger root extract, 5 to 15 parts of radix polygoni multiflori extract and 5 to 25 parts of swertia japonica extract; 10-30 parts of a Chinese arborvitae twig and leaf extract; the component B is prepared from the following components in parts by weight: 70 to 90 parts of cocamidopropyl-PG-sodium dimethyl ammonium chloride phosphate, 10 to 30 parts of sodium isostearoyl lactylate and 1 to 10 parts of dichlorobenzyl alcohol; the weight ratio of the component A to the component B is 10: 1. The composition can effectively regulate scalp micro-ecological balance, remarkably inhibit overgrowth and reproduction of common harmful bacteria on scalp, protect or moderately promote growth of beneficial bacteria on scalp, maintain healthy flora structure and diversity, fundamentally improve scalp health by recovering and maintaining the balance state of scalp micro-ecology, and improve scalp quality. The shampoo has multiple good effects of controlling oil, preventing alopecia, relieving itching and removing dandruff.

The invention relates to selenium-enriched pediococcus acidilactici Se34 with anti-oxidation, cholesterol-lowering and anti-tumor effects and application of the selenium-enriched pediococcus acidilactici Se34. The pediococcus acidilactici Se34 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number of the pediococcus acidilactici Se34 is CGMCC No.33933, and the preservation date of the pediococcus acidilactici Se34 is March 24, 2025. The pediococcus acidilactici Se34 provided by the invention integrates excellent probiotic characteristics (acid-resistant bile salt, safe and colonizable), efficient selenium enrichment capacity and remarkably enhanced activity of resisting oxidation, reducing cholesterol and inhibiting specific cancer cell proliferation and metastasis after selenium enrichment. The strain and the selenium-rich product thereof have important application value in the fields of developing functional foods (selenium-rich probiotic products), antioxidant / cholesterol-reducing health-care foods, potential auxiliary anticancer biological preparations or prodrugs and the like.

The invention belongs to the field of polymer chemistry and biological medicine materials, and relates to application of a polymer polysaccharide slow-release carrier in medicinal and edible components and a preparation method of the polymer polysaccharide slow-release carrier. The carrier is composed of phytic acid-genipin cross-linked modified chitosan, tannic acid, sodium lactate, glycerin, vitamin E acetate, sodium alginate and deionized water. The phytic acid-genipin cross-linked modified chitosan is prepared by reacting chitosan with phytic acid and genipin, and has reversible cross-linking and polydentate coordination properties; the tannic acid and the modified chitosan can form a multi-point hydrogen bond and esterification network. The carrier is prepared through sol-gel forming or spray drying, is stable in structure, good in dispersity, high in drug loading capacity, stable in an acid environment and controllable in release under a neutral condition, remarkably improves the slow release performance and bioavailability of medicinal and edible components, and is suitable for functional food and drug delivery systems.

The invention discloses a skin jelly preparation method capable of prolonging the shelf life through a compound technology, and relates to the technical field of food processing technologies. The method comprises the following steps: cutting an animal skin raw material, treating with a sodium carbonate solution, cleaning with a citric acid solution, boiling to extract a collagen solution, adding ascorbic acid and nisin, freezing and forming, drying in vacuum, performing irradiation sterilization and the like. According to the method, fat and impurities in the raw materials can be effectively removed, oxidation reaction and microbial reproduction can be inhibited, the moisture content can be reduced to 5% or below, and residual microorganisms can be thoroughly killed, so that the shelf life of the skin jelly can be remarkably prolonged to 12 months or above, meanwhile, good taste and nutritional value are kept, market requirements are met, and the production cost is reduced.

The present invention relates to a food composition for improving obesity or cognitive function, comprising a hemp seed fermentate prepared using the Pediococcus acidilactici SRCM201591 strain. The fermentate was confirmed for radical scavenging ability, ROS scavenging ability, and AChE inhibitory ability, and found to have an antioxidant effect as a high content of polyphenol was measured. An anti-obesity effect was also confirmed through assays for triglyceride inhibition and C. elegans size reduction, and antioxidant and anti-obesity related gene regulation effects were identified following administration of the fermented extract. Accordingly, the fermentate can be advantageously used in the manufacture of food for improving obesity or cognitive function.

The present application relates to a kind of lactic acid powder scale, continuous production equipment and production method.Lactic acid and calcium lactate are used as raw materials, first, both are input simultaneously according to the set ratio into first hollow paddle dryer, then input into second hollow paddle dryer to complete mixing, drying, lactic acid dehydration in raw material lactic acid digestion and its eutectic with calcium lactate etc.Process, then the mixture is input into pulverizer to be crushed, finally, the target lactic acid powder product is collected and screened by cyclone separator and matching screen.The hollow paddle dryer and its matching equipment used in the present application not only ensure the full mixing of raw materials, but also have heating and drying functions, which can realize the hydrolysis and conversion of lactic acid anhydride, lactylate, poly-lactylate in various specifications of lactic acid raw materials and its eutectic with calcium lactate, drying one-step continuous completion while mixing the feed, and finally shorten the production cycle of the usual process about 4-30 days to the present application process on the same day or shift.

The invention relates to the technical field of silage, in particular to a whole-plant corn silage additive and application thereof. The whole-plant corn silage additive is prepared from bacillus subtilis GW-910 and bacillus subtilis GW-908. The whole corn silage is carried out by adding the bacillus with lignocellulose degradation capability as the silage additive, so that the concentrations of lactic acid and acetic acid are remarkably increased, the concentration of butyric acid is reduced, the contents of NDF, ADF, ADL and starch are remarkably reduced, the content of WSC is remarkably increased, and the quality of the whole corn silage is remarkably improved.

The invention relates to the technical field of active peptides, and discloses a yolk-derived active peptide for promoting bone growth and a preparation method thereof. The preparation method comprises the following steps: cleaning, selecting, sterilizing and drying poultry eggs to obtain sterile poultry eggs; performing spray drying on yolk to obtain yolk powder, and performing degreasing treatment to obtain degreased yolk powder; sieving the degreased egg yolk powder, and adding deionized water to obtain a degreased egg yolk powder suspension; adjusting the pH and temperature of the degreased yolk powder suspension, and performing enzymolysis to obtain enzymatic hydrolysate; inactivating the enzymatic hydrolysate for later use; adding calcium lactate and zinc lactate into the enzymatic hydrolysate, adding geobacillus stearothermophilus, and fermenting to obtain fermentation liquor; separating to obtain an active peptide solution. According to the yolk-sourced active peptide for promoting bone growth and the preparation method, the active peptide with small molecular weight is obtained through distributed enzymolysis and fermentation and is easy to absorb, and calcium ions and zinc ions are added during fermentation, so that the active peptide is chelated with metal ions, and growth and bone development are promoted.

The invention discloses a method for regulating and controlling the total acid content of primary liquor in Maotai-flavor liquor brewing, and belongs to the technical field of liquor brewing. Red tassel glutinous sorghum is crushed until the crushing degree is 10%-20%, preferably 13%-15%; the method comprises the following steps: mixing the crushed sorghum and fermented grains obtained after sand fermentation according to a mass ratio of 1: 1, and cooking in retort type gelatinization equipment at a conventional gelatinization temperature for 105-120 minutes, preferably 110 minutes; by adopting the method disclosed by the invention, the content of acetic acid in the fermented grains is obviously reduced by 13.82% at the end of fermentation, the content of acetic acid and the content of total acid in primary wine are respectively obviously reduced by 9.68% and 14.47%, the content of lactic acid is not obviously changed, the content of normal propyl alcohol is synchronously obviously reduced by 14.96%, and the content of other higher alcohols is stable. The method is simple in process, does not need new equipment, is completely compatible with the existing production line, and can effectively stabilize and improve the quality of the primary wine base.

The invention belongs to the technical field of food, and particularly relates to application of nisin in inhibiting plasmin activity and improving quality of milk and / or dairy products. The nisin disclosed by the invention can be used for remarkably inhibiting the activity of plasmin. The nisin disclosed by the invention is a food additive allowed to be used, the INS number is 234, and the nisin is high in safety. Plasmin is a key enzyme causing deterioration of milk and milk quality, and the nisin disclosed by the invention improves the quality of milk and / or dairy products from the source by inhibiting the activity of plasmin.

The invention belongs to the technical field of cosmetics, and particularly discloses a hair follicle nourishing composition containing tripeptide-1 and a preparation method of the hair follicle nourishing composition. Comprising the following components in parts by mass: 36.5-47.3 parts of a Korean ginseng extract, 24-30 parts of a green alga extract, 20-28 parts of lactobacillus / soybean extract fermentation product filtrate, 1-5 parts of sodium polyglutamate, 1-4 parts of hydrogenated vegetable oil glyceride, 0.5-1.5 parts of sodium lactate and 0.2-1 part of tripeptide-1. On the basis that sodium polyglutamate, hydrogenated vegetable oil glycerides, sodium lactate and tripeptide-1 are added, through the synergistic interaction of the Korean ginseng extract, the green alga extract and the lactobacillus / soybean extract fermentation product filtrate, the composition capable of effectively inhibiting the activity of malassezia furfur, relieving or eliminating scalp inflammation, preventing and treating scalp inflammation and the like is obtained. Human hair papilla cell proliferation is promoted, and hair follicles are effectively nourished.

The invention relates to the technical field of chemical production energy conservation, in particular to an ethyl lactate production waste heat utilization energy-saving heat circulation device which comprises a heat exchanger. The driving assembly comprises a mounting plate arranged on the outer wall of the heat exchanger; the idling assembly is arranged on the outer side of the driving assembly and comprises a moving block; the feeding assembly comprises a material storage disc arranged on the outer wall of the idling assembly, a feeding channel designed from top to bottom is arranged in the material storage disc, feeding and discharging ports are formed in the two ends of the outer wall of the feeding channel and need to penetrate through the outer wall of the material storage disc, and a discharging disc is arranged on the outer side of the material storage disc; the catalyst is conveyed into the heat exchanger through the driving assembly, the idling assembly controls the transmission cylinder to idle and drives the feeding assembly to throw out the catalyst, so that automatic feeding is achieved, meanwhile, the arch-shaped rod is used for actively stirring a solution and the catalyst to improve the reaction rate, and the problems existing in the prior art are effectively solved.

The invention discloses a fish hydrolyzed collagen peptide-based flavor beverage and a preparation method thereof, and relates to the technical field of food beverages. The flavored beverage comprises the following raw materials: fish hydrolyzed collagen peptide, a compound flavor modification stabilizer, a compound sweetening agent, concentrated fruit and vegetable juice, casein phosphopeptides, VC magnesium phosphate, zinc lactate, a low-nucleic-acid yeast extract, sodium hyaluronate, an acidity regulator and purified water. The compound flavor modification stabilizer is matched with the low nucleic acid yeast extract to form synergistic flavor regulation and control, the hydrophobic bitter peptide fragment of the fish hydrolyzed collagen peptide and the fishy smell characteristic group are wrapped from the molecular level, and meanwhile, the soft modification on the sensory level is realized through the gamma-aminobutyric acid; the effect of debitterizing and deodorizing without adding artificial essence and a large amount of cane sugar is achieved, the product flavor is natural and harmonious, the sour and sweet taste is palatable, the beverage completely conforms to the current healthy consumption trend of low sugar and no artificial addition, and the problem that the beverage has flavor defects is solved.

The invention discloses a method for improving yield of branched chain aldehyde of lactococcus lactis based on regulation and control of a luxS gene and application, and belongs to the field of system biology. Gene function verification and genome scale metabolic network model analysis are creatively combined, the phenotypic effect of the luxS gene is confirmed, and more importantly, the internal action mechanism of the luxS gene is disclosed from the system level, that is, the whole metabolic network flow is influenced by regulating and controlling multiple key enzymes such as transaminase, decarboxylase, dehydrogenase and decarboxylase. The invention reveals that the quorum sensing core gene luxS has a new function of regulating and controlling synthesis of branched chain aldehyde in lactococcus lactis for the first time, and an intercellular communication system is directly linked with production of specific flavor metabolites. The invention provides a brand-new and higher-level regulation target and thought for producing flavor substances by microbial fermentation, and gets rid of the limitation that only metabolic pathway terminal enzyme is singly modified traditionally.

The microorganism strain Pediococcus acidilactici TAK 589 CoccobEst is a new antimicrobial and antioxidant probiotic, CoccobEst inhibits the growth of the enteropathogens L. monocytogenes, E. coli, S. enteritidis, S. typhimurium, S. sonnei, S. aureus, E. faecalis and C. sakazakii, but does not inhibit lactobacilli of natural intestinal microbiota. The strain's antimicrobial properties are enhanced by periplasmic peptidoglycan hydrolases with proteolytic activity. CoccobEst is used as a zootechnieai feed additive to prevent bacterial infections in the gastrointestinal tract of farm animals and pets and to prevent and reduce diarrhea. CoccobEst has highly active antioxidant defense system, increasing the redox activity of glutathione and reducing oxidative stress in cells. Therefore, CoccobEst is used as a food supplement or functional food for humans to prevent bacterial infections of the gastrointestinal tract and to prevent and reduce oxidative stress. In addition, CoccobEst is used as a starter culture in fermentation of vegetables.

The invention relates to pediococcus acidilactici b1274 and application thereof, and belongs to the technical field of beneficial bacterium application. The pediococcus acidilactici b1274 is preserved in the China Center for Type Culture Collection on September 24, 2025, the preservation number is CCTCC M 20252094, and the pediococcus acidilactici b1274 is obtained by separation and purification from distiller's yeast. The pediococcus acidilactici can be used for preparing microbial enhanced distiller's yeast, is applied to brewing of fen-flavor liquor, and can improve the content of ethyl acetate, ethyl lactate and total acid in the liquor and reduce the content of acetaldehyde at the same time. Compared with a production control group, the content of ethyl acetate is increased by 50.0%, the content of ethyl lactate is increased by 8.1%, the total acid is increased by 46.4%, the acetaldehyde is reduced by 48.4%, the brewed white spirit shows the style of faint scent, purity, mellowness, fullness, softness, sweetness, freshness, long aftertaste and mellow and prominent acid ester taste, and a safe and reliable functional strain and a technical scheme are provided for improving the quality of the fen-flavor white spirit.

The present invention discloses a composite preservative for refrigerated sea bass fillets and a comprehensive fresh-keeping and quality preservation method thereof. The raw materials of the composite preservative include 1-5% trehalose, 0.1-0.5% sodium citrate, 0.03-0.09% ginger extract, 0.3-0.9% D-sodium isoascorbate, 0.03-0.09% nisin, and 0.01-0.03% ε-polylysine in terms of mass percentage; the balance is water. The fresh-keeping and quality preservation method consists of the following steps: preparing and pre-cooling the composite preservative; soaking the treated sea bass fillets in the pre-cooled composite preservative; finally, draining the soaked sea bass fillets and bagging them, and then refrigerating them. The raw materials of the composite preservative of the present invention are natural, green and environmentally friendly, have good fresh-keeping and quality preservation effects, can extend the shelf life of refrigerated California sea bass fillets, and have an inhibitory effect on the oxidation of myofibrillar protein.

The present application relates to the technical field of reversing insulin resistance, and particularly relates to a composition with components for reversing insulin resistance and a preparation method thereof, the composition comprising quercetin, procyanidin, malic acid, magnesium carbonate, zinc lactate and grains, and through synergistic effects of the components, the composition can reduce fasting blood glucose, fasting insulin and insulin resistance index, and improve insulin sensitivity index, and overcomes the problems in the prior art that the components of the traditional Chinese medicine composition are complex, the effective components for reversing insulin resistance and the synergistic mechanism are not clear, and the content of the effective components in the same medicine is not consistent due to the influence of the growth environment, resulting in unpredictable treatment effect.

The invention is suitable for the technical field of food packaging materials, and provides a biodegradable lactic acid-based food packaging composite material and a preparation method thereof.The composite material is prepared from polylactic acid, polycaprolactone, tartaric acid-cysteine carbon dots, a bio-based plasticizer, an organic small molecule modifier and modified aerogel; tartaric acid-cysteine carbon dots and polycaprolactone are added to synergistically enhance the mechanical property, barrier property, antibacterial property and antioxidant property of the polylactic acid material; by adding the bio-based plasticizer, the processability and flexibility of the PLA are further improved; by adding the small organic molecule modifier, the dispersity of the carbon dots in a PLA matrix is improved, and the mechanical property, the oxidation resistance and the antibacterial property of the material are further enhanced; by adding the modified aerogel, excellent barrier property and adsorption capacity are provided, the mechanical property of the material is enhanced, and plant-derived antibacterial factors are uniformly distributed in aerogel pores, so that the growth of microorganisms is effectively inhibited.

The invention belongs to the technical field of biochemistry and functional polymer materials, and particularly relates to a polysaccharide-oligopeptide co-assembled intestinal flora regulation and control material and a preparation method thereof. The material is prepared from imine-boric acid ester double dynamic crosslinking modified chitosan, glycyl-tryptophan dipeptide, sodium lactate, citric acid, glycerol and a phosphate buffer solution. A reversible imine bond and a borate bond are introduced into chitosan molecules to construct a polysaccharide network with a double-dynamic crosslinking characteristic, and then the polysaccharide network and oligopeptide molecules are synergistically self-assembled to form a three-dimensional gel structure. The material has pH responsiveness, self-repairing property and slow-release function, and can realize continuous release of short peptides and selective regulation and control of probiotics in an intestinal environment. The prepared material is high in gel strength, good in structural stability and stable in oligopeptide release, and has remarkable promotion and inhibition selectivity on intestinal flora. The method provides an innovative co-assembly strategy for polysaccharide functionalization and micro-ecological intervention, and has a good application prospect.