39 results about "Hydrolysable tannin" patented technology

The invention provides a composition comprising a matrix of chitosan and a tannin wherein the chitosan is electrostatically bonded to the tannin to form a chitosan-tannin composite material. The chitosan can be partially or fully deacetylated, and the tannin can be a monomeric or an oligomeric proanthocyanidin or a hydrolysable tannin. The chitosan-tannin composite material can be a nanoparticle, a hydrogel film, a bio-foam, or a biogel, or the chitosan-tannin composite material can coat a liposome. The composite materials can be used for drug delivery, for antibacterial and/or antifungal applications, for tissue engineering applications, for wound healing applications, or they can be used as adjuvants for vaccination, including oral vaccinations. The invention also provides methods of preparing the composite materials and their various forms.

A conditioned, water-based drilling fluid including water-based drilling fluid; and unmodified vegetable tannin comprising hydrolysable tannin.

The invention relates to a disease resistance-promoting feed for an egg producing period of hens and a preparation method thereof. The feed is prepared from the following raw materials in parts by weight: 10-20 parts of oat, 8-20 parts of bean pulp, 2-6 parts of corn protein powder, 1-5 parts of sesame seed meal, 1-5 parts of chili slag, 0.5-1.5 parts of rice bran oil, 1-5 parts of gardenia fruit pomace, 0.03-0.1 part of hydrolysable tannins, 0.025-0.1 part of Perstorp SR130, 0.01-0.03 part of beta-carotene, 0.1-0.2 part of natural xanthophyll, 0.001-0.05 part of carnitine, 0.03-0.08 part of glycine betaine, 0.05-0.1 part of probiotics, 0.05-0.1 part of a complex enzyme preparation, 0.01-0.12 part of a mycotoxin adsorbent and 1-2 parts of mixed yeast of oat bran and wheat fibers. The disease resistance-promoting feed for the egg producing period of hens has the effects of obviously promoting the immunological functions of the hens, promoting the intestine health and enhancing the disease resistance.

The invention discloses a preparation method of an oak extracting solution. The method is characterized in that oak wood serves as raw material, obtained brown liquid after the oak wood is sliced and subjected to infrared baking, ultrahigh-pressure extraction, centrifuging, ultrafiltration and nanofiltration is the oak extracting solution, and the oak extracting solution is added into wine or brandy according to a certain proportion when wine or brandy is mixed. Far infrared radiation is used for replacing a traditional firing mode, a resistance heating mode and other baking modes, and the ultrahigh-pressure extraction and membrane separation technology is adopted for extracting and concentrating aroma and flavor producing substances in the oak wood; the preparation method has the advantages that energy consumption is low, the extraction efficiency is high, extraction and concentration are both completed under the normal temperature condition, and extracting solvents can be recycled; the oak extracting solution prepared through the method has full-bodies oak aroma and rich hydrolysable tannin, besides, the production technology is simple, use is convenient, wine or brandy can fast generate the sensory characteristic that the wine or brandy is subjected to oak barrel ageing, the production period is shortened, and product quality is improved.

The invention discloses a hydrolysable tannin compound, which is formed by connecting glucose and gallic acid by ester bond or glycosidic bond. According to the number of composing sugar, the compound falls into monomer, dimer and trimer hydrolysable tannin derivatives, the hydrolysable tannin compound is characterized in that the end group of soup is free hydroxyl group. Animal experiments prove that the hydrolysable tannin compound can inhibit croton oil induced mouse ear swelling and carrageenin induced mouse foot swelling, has obvious inhibitory activity on type II collagen induced DBA-1 type mouse arthritis, and can be used for prevention and/or treatment of rheumatism and rheumatoid arthritis.

The invention discloses a compound adsorbing material capable of selectively adsorbing tannins and a preparation method thereof. The method comprises the following steps of: firstly, ultrasonically stirring and co-processing an attapulgite suspension with mass fraction of 1% to 15% in a water bath, freezing and thawing so that attapulgite crystal bundles are dissociated into attapulgite single crystal rods, and drying and grinding to obtain attapulgite nanopowders; then, modifying a suspension of the attapulgite nanopowders with a cationic surfactant to form organic attapulgite; and subsequently, mixing hide powder collagen and a suspension of the organic attapulgite, oscillating in a water bath from mixing thoroughly, and freeze-drying to constant weight, thus obtaining the compound adsorbing material. The material can selectively adsorb hydrolysable tannins with high efficiency. Since both the collagen and the attapulgite are environment-friendly, the collagen-attapulgite compound material has the advantages of environmental friendliness and has development potential.

Provided is a method for cultivating lignicolous lucid ganoderma with walnut shells as a culture medium. The walnut shells are smashed, the walnut shells are placed in warm water for soaking, after soaking, soaking liquid is removed, and hydrolysable tannin is removed preliminarily; soybeans and water are subjected to soaking together, continuous soaking is carried out at the temperature of 20 DEG C-28 DEG C for 10 h-12 h, smashing is carried out, and soybean milk is formed; and after being soaked in the soybean milk and the water, the walnut shells are subjected to full stirring and combining, even mixing is carried out, sealing is carried out at the temperature of 10 DEG C-15 DEG C for 90 h-98 h, the processed walnut shells are placed at an oven, drying is carried out, the walnut shells, cotton seed hulls, rice bran, glucose and calcium phosphate after processing are subjected to rewatering, full stirring and even bagging, after bagging, sterilization is carried out, the walnut shells are cooled to room temperature, ganoderma lucidum strains are inoculated, breeding is carried out in an incubator of 23 DEG C-28 DEG C, and the mycelial growth conditions are observed at regular intervals until lucid ganoderma buds are formed. A semisolid low-temperature fermentation technology is used for damaging the bacteriostasis of tannin, growth of lignicolous lucid ganoderma is promoted, and hydrolysable tannin is effectively lowered.

The invention discloses an environment-friendly compound fertilizer with a soil restoration function and a preparation method of the environment-friendly compound fertilizer. The environment-friendly compound fertilizer with the soil restoration function comprises fish scale powder, polyacrylamide, starch xanthate, crab shell powder, plant polysaccharides, polyaspartic acid, hydrolysable tannin, river sand micro-powder, sodium selenate, tartaric acid, bismuth subcarbonate, montmorillonoid, volcanic ash, chitin, glycerin monostearate, vermiculite powder, bamboo charcoal powder and diammonium phosphate. The environment-friendly compound fertilizer with the soil restoration function can effectively remove heavy metals such as nickel and cadmium in soil, the soil is restored and improved, soil quality is improved, soil pollution is avoided, the burden of the soil is reduced, fertilizing amount is small, raw materials are non-toxic, and the compound fertilizer is more environmentally friendly.

The invention relates to a dipolymer hydrolysable tannic derivative, which has structure of a general formula I on the right, wherein, R1, R2, R3, R4, R5, R6, R7 and R8 can be same or different, and are respectively chosen from hydrogen, methyl, ethyl, acetyl, propiono, galloyl or hexahydroxy biphenyl dimethyl acyl independently from each other, and wherein any two adjacent substituting groups can come from the same hexahydroxy biphenyl dimethyl acyl on the premise that in the R1, the R2, the R3, the R4, the R5, the R6, the R7 and the R8, at least one is galloyl or hexahydroxy biphenyl dimethyl acyl, and the glycosyl in the formula I can be same or different alpha-glucose or beta-glucose. The compound has strong ability of anti-fatty acid synthase and good anti-obesity effect in animal experiments, and the compound can be used separately, combined with other drugs or matched with pharmaceutical carriers for preparing various dosage forms such as capsule, granule, oral liquid or tablets, and the like for treating and preventing obesity, and for preparing food additives for preventing obesity.

Natural plant parts and extracts of plants selected from the group consisting of Quercus infectoria, Rhus chinensis and Terminalia chebula containing compounds such as gallic acid, derivative of gallic acid, gallotannins and hydrolysable tannins have been found to control coccidiosis in poultry and, more specifically, coccidiosis caused by Eimeria spp. The plant parts and natural extracts result in a reduction of lesion score, oocysts per gram of fecal matter and mortality.

The invention discloses a mechanochemical extraction method for preparing a hydrolysable-tannin crude extract from trapa Sp. pericarps. The method comprises the steps of drying, smashing and sieving the trapa Sp. pericarps to obtain trapa Sp. pericarps powder, putting the trapa Sp. pericarps powder into a ball mill for ball milling treatment, mixing an extraction solvent with the trapa Sp. pericarps powder which is subjected to ball milling treatment, carrying out ultrasonic extraction, and adjusting the pH value of a dispersion solution which is subjected to ultrasonic extraction to be 2-4; performing standing for 3-5 hours, putting the dispersion solution into a centrifuge for centrifugal separation, conducting filtering, carrying out reduced-pressure distillation on a filtrate to removethe solvent in order to obtain a crude extract, and dissolving the crude extract in water again; performing extraction through petroleum ether, using ethyl acetate for extracting a raffinate phase, making the ethyl acetate phase subjected to rotary evaporation to remove the solvent, and then obtaining a hydrolysable-tannin crude extract product. According to the method, a mechanochemical auxiliary ultrasonic extraction technology is adopted for extracting the hydrolysable-tannin crude extract in the trapa Sp. pericarps, correspondingly the resource waste of the trapa Sp. pericarps is reducedon the premise of not causing further environmental pollution, the waste is turned into treasure, and the application field of the method is expanded.

A method for regulating the appearance of skin comprising topically apply to said skin a composition comprising a cosmetically or pharmaceutically acceptable carrier and about 0.1% to about 40% of an extract comprising low molecular weight hydrolysable tannins.

The invention provides an antimicrobial-free additive for preventing and controlling piglet diarrhea and a preparation method thereof, and relates to the technical field of livestock epidemic prevention. The antimicrobial-free additive is prepared from the following components in parts by mass: 480 to 570 parts of defatted rice bran, 80 to 120 parts of hydrolysable tannin, 50 to 150 parts of Yingtai II, 5 to 15 parts of glucose oxidase, 40 to 80 parts of intestinal mucosa protector, 150 to 250 parts of compound probiotics and 3 to 11 parts of accessories. According to the antimicrobial-free additive provided by the invention, the technical problems that since the piglet diarrhea is mainly treated by using antibiotic drugs at the present stage, drug resistance is easy to cause, and food health can be caused are solved, and the technical effects of not only being able to completely eradicate the problem of food safety caused by antibiotic residue, but also being able to effectively control the piglet diarrhea caused by bacteria, reduce the morbidity of swine influenza and increase the anti-disease ability of piglets, and meanwhile, being able to promote better absorption of nutrient substances, quicken the growth speed of the piglets and increase the utilization rate of feed can be achieved.

The invention provide a sanguisorba extract for treatment of AIDS (acquired immunodeficiency syndrome) and a preparation method thereof, and the sanguisorba extract mainly comprises gallic acid, ellagic acid, hydrolysable tannin and condensed tannin. The sanguisorba extract has excellent inhibitory activity and low cytotoxicity to R5-tropic and X4-tropic AIDS viruses.

The invention discloses an application of hydrolysable tannin in improvement of the growth performance of litopenaeus vannamei and the intestinal microbial abundance of prawns. A basic feed is used asa blank group, and 0.1%, 0.2% and 0.3% of hydrolysable tannin are added in the basic feed to be used as experimental groups; after a culture experiment is carried out for 60 d, the growth performanceis counted, and the structure and change conditions of intestinal flora in the prawns are detected; results show that the weight gain rate, the specific growth rate and the fullness of the three hydrolysable tannin addition groups are significantly higher than those of the control group, and the liver-to-body ratio is significantly lowered; the species abundance and evenness of intestinal microorganisms in the experimental groups are generally higher than those of the control group. PCoA analysis finds out that the microflora of the addition groups with 0.1% and 0.3% of hydrolysable tannin are close, but are different from that of the addition group with 0.2% of hydrolysable tannin; with combination of growth performance indicators, 0.1% of hydrolysable tannin added in a feed can be moreeconomical. The researches show that the hydrolysable tannin added in the feed can significantly change the intestinal microbial composition of the prawns, increase the growth rate of the prawns, andaffect the growth performance of litopenaeus vannamei.

The invention discloses a traditional Chinese medicine preparation for treating ashen nail, and belongs to the field of traditional Chinese medicine. The preparation comprises following raw materialsin parts by weight: 110-130 parts of rice vinegar, 10-20 parts of impatiens balsamina, 15-25 parts of cortex acanthopanax radicis, 20-30 parts of garden balsam stem, 35-40 parts of hollow grass, 18-22parts of fructus kochiae, 24-36 parts of radix saposhnikoviae, 45-55 parts of hydrolysable tannin, 10-20 parts of folium artemisiae argyi, 5-10 parts of wrinkled gianthyssop herb and 15-25 parts of tribulus terrestris. The combination of drugs of the preparation can remove heat and humidity, adjust local blood operation, promote blood circulation to remove meridian obstruction, diminish inflammation, disperse swelling, kill bacteria and relieve pain and itching, the preparation has a significant effect on treating ashen nail, continuous treatment for 20 D can cure, and the effect taking timeof the preparation is short.