36results about How to "Overcome residual" patented technology

The invention provides a method for extracting DHA from cells of algae and fungi by breaking cell walls and relates to a method for extracting active ingredients from microorganisms. The method provided by the invention avoids the assistance from any organic solvent and chemical medicaments, breaks the walls of the cells of the algae and the fungi by using a physical method and extracts a grease product DHA (docosahexaenoic acid) from the cells and is suitable for large-scale production at low cost. The method comprises: after fermentation is finished, introducing fermentation liquor of microalgae or fungi to a separation system for separating and collecting the cells, adjusting the pH value of bacterial sludge with an acid to 2.0 to 4.0, keeping the temperature of the bacterial sludge between 10 and 20 DEG C, adding antioxidant into the bacterial sludge, and performing high-pressure homogenization and wall breaking by using a high-pressure homogenizer; and adding water into the bacterial sludge subjected to wall breaking, stirring the bacterial sludge, and separating feed liquor in a three-phase separator to obtain DHA grease. In the invention, physical wall breaking and the physical extracting method are used, the process is simple, the cell breaking is high efficient, the low-temperature treatment and antioxidant treatment of the bacterial sludge can effectively protect thebioactivities of the matters in the cells of the algae and the fungi, and the product is green, nontoxic and free from residues.

The invention relates to a method for using alga polyphenol to prevent blackening of seawater shrimps, and the method comprises steps of: 1, selecting fresh algae, washing and draining the algae, and smashing the algae to slurry by a tissue homogenizer for standby; 2, using ethanol with concentration of 80-90% to blend the slurry and the ethanol uniformly to prepare a material liquid, according to the ratio of the slurry to the ethanol being 1g / mL: 6-8g / mL, processing the material liquid in a supersonic wave processor for 2-5 minutes, and then low-fire processing for 2-5 minutes in a microwave oven; 3, putting the microwave processed material liquid into a water-bath shaker at a temperature of 55 DEG C-65 DEG C, carrying out light-free extraction for 0.5-2 hours at a rotating speed of 80-120 r / min, carrying out pumping filtration process, and the alga polyphenol solution containing the alga polyphenol is obtained; 4, immersing the seawater shrimps by using the alga polyphenol solution with concentration of 180-220 ug / mL for 5-15 min, air drying, dishing up, and wrapping the shrimps with a PE preservative film and refrigerating the shrimps at 3+ / - 1 DEG C. The method of the invention has the advantages of simple operation, low cost, and good effect for preventing blackening, can be widely used for preventing the blackening of seawater shell-fish products, can prolong shelf life of the products, promote goods value, simultaneously improve added value of the algae, and has important meanings for increasing economic benefit and promoting fishery synergy.

The invention discloses a method for separating and preparing instant tea by use of multilayer membranes. The method comprises the following steps: performing conventional treatment such as extraction, filtering and the like on tea leaves; filtering through a microfiltration membrane film, an ultrafiltration film and a nano filter membrane to obtain the tea filtered concentrated liquid; and drying to obtain the instant tea. Through the method disclosed by the invention, harmful germs, useless components and pesticide residue in tea leaves can be removed, the content of heavy metals such as lead and the like can be obviously reduced, and the quality and sanitation index of the tea leaf product are improved.

The invention provides a manufacturing method of a PCB (Printed Circuit Board). The manufacturing method comprises the following steps: manufacturing sub-boards of the PCB, wherein each sub-board comprises a full-copper sheet surface layer, a substrate layer and a circuit pattern surface layer; performing brown oxidation on the circuit pattern surface layers of the sub-boards; sequentially stacking a PP (Propene Polymer) sheet and adjacent sub-boards on the circuit pattern surface layers of the sub-boards, stacking copper foils on the full-copper sheet surface layers of the sub-boards and then laminating; tearing off the copper foils The invention also provides a PCB which is manufactured by use of the method. The method can be used for improving the PCB manufacturing quality.

The invention belongs to the field of a feed additive, and more particularly provides a feed additive for chickens, which is formed by mixing the components by mass percent: 50-80% of turmeric residue, 10-30% of ginseng residue and 10-30% of tea residue. When in use, 1-4% of feed additive is added into basic ration by mass percent. The feed additive has the performance of promoting parturition ofthe chickens, has the function of improving the immunity, is capable of overcoming the defects of residue and side effects of antibiotics and chemical synthesis additives, and solves the problem of environmental pollution caused by processing residues of plant extraction industry.

The invention discloses a method for preparing a mulberry cigarette flavor, belonging to the technical field of cigarette in the cigarette industry as well as a preparation method of essence and flavors. The method comprises the following steps: (1), preparing materials: bleaching, floating, drying and crushing dried mulberry fruits and screening with a net of 10 to 100 meshes to obtain mulberry powder; (2), extracting: distilling and extracting the mulberry powder, screening with millipores and keeping filtrate; (3), extracting and concentrating to obtain paste as an aqueous mulberry extract;(4), absorbing with macroporous resin to obtain mulberry eluate; (5), reducing pressure and concentrating to obtain a mulberry extract; and (6), preparing the flavor: mixing the mulberry extract and alcohol according to a proportion to obtain a solution as the mulberry cigarette flavor. The method has the following advantages of simple technology, active ingredient maintenance, strong stability of the prepared mulberry cigarette flavor, clean buccal aftertaste, good compatibility with cigarette smell, no residue and low cost.

The invention discloses a method for extracting shinyleaf yellowhorn seed kernel oil with a supercritical or subcritical fluid, which comprises the following steps: (1) selecting shinyleaf yellowhorn seed kernel, and pulverizing to 10-120 meshes; and (2) extracting the pulverized shinyleaf yellowhorn seed kernel in the step (1) with a supercutical fluid or subcritical fluid to obtain the shinyleaf yellowhorn seed kernel oil, wherein the residual material is shinyleaf yellowhorn dregs. Compared with the traditional pressing method, the method disclosed by the invention obviously enhances the oil extraction rate, and avoids the problems of severe damage of unsaturated fatty acids and other components in oil, and protein denaturation at high temperature in the pressing method. Compared with the leaching method, the method disclosed by the invention solves the problems of solvent residues, complex after-treatment process and high tendency of environmental pollution. According to the method disclosed by the invention, the oil extraction rate is not lower than 50%, the protein content in the shinyleaf yellowhorn dregs is not lower than 55g / 100g, and the obtained oil product has high quality.

The invention provides a medicinal composition for preventing and controlling moss. The medicinal composition is formed by uniformly mixing 0.1-10 parts by weight of copper sulfate and 1-50 parts by weight of fructus cnidii water extract. The medicinal composition is mainly used for removing moss on a soil surface or in a pool, and the effect of the medicinal composition is superior to that of single copper sulfate and prometryn. The invention also provides a method for preventing and controlling growth of moss in a fritillaria planting greenhouse. The method comprises the following steps: keeping ventilation in the greenhouse, and illuminating for 1-2 hours every other day; mixing the copper sulfate and the fructus cnidii water extract, adding water into the mixture so as to prepare a medicinal liquid; spraying the medicinal liquid in a dosage of 500-800ml per square meter on the soil surface in the fritillaria planting greenhouse. The medicinal composition is small in dosage and durable in drug effect, cannot cause hazard to the environment, and can be used for overcoming the defect of drug residues of existing chemicals; meanwhile, the method has the advantages of simplicity in operation, safety in use and exact curative effect.

The present invention provides a mud shale thermal release C5-C14 hydrocarbon preparation and online chromatographic analysis method, which comprises that: 1, a mud shale sample is grinded into particles, and are in the quartz sample boat of a tubular furnace; 2, the tubular furnace is heated under helium gas purging, and hydrocarbon components of the sample are enriched in a liquid nitrogen cold trap; and 3, after completing the enriching, a chromatograph is started, the online enriching tube is rapidly heated, and the thermal release hydrocarbon enters the chromatographic column through a high temperature six-way valve along with carrier gas so as to separate. With the mud shale thermal release C5-C14 hydrocarbon preparation and online chromatographic analysis method of the present invention, the incomplete heavy-component thermal release caused by the large sample particles or the low thermal release temperature is avoided, the online chromatographic analysis and the sample preparation for other analysis items can be concurrently performed, the oil-rock comparative study can be performed, the mud shale can be subjected to quantitative evaluation, and advantages of convenience and environmental protection are provided.

The invention relates to a urinary catheter, wherein at least the insertable part of the urinary catheter is coated with a hydrophilic lubricating coating, a coating material composition containing aphotocurable polymer is coated on the surface of the urinary and is cured through illumination to form the hydrophilic lubricating coating, and the photocurable polymer is formed by copolymerizing a water-soluble polymerizable photosensitive monomer with a specific structure and a hydrophilic monomer. The urinary catheter disclosed by the invention has advantages of good lubricating property, excellent biological safety and high firmness.

The invention belongs to technical methods for eliminating algae in water, and particularly relates to a botanical algaecide for filamentous algae and a preparation method of the botanical algaecide. The botanical algaecide comprises pine needles, willow leaves and metasequoia leaves. The preparation method includes: cleaning, drying, smashing and screening the pine needles, the willow leaves and the metasequoia leaves, and mixing the screened materials proportionally. The botanical algaecide for the filamentous algae has the advantages that natural plant sources including fallen leaves of familiar plants are taken as raw materials, the preparation method is simple, and the filamentous algae can be eliminated quickly and effectively.

The invention provides biological active peptide for promoting growth of a piglet. The biological active peptide comprises an amino acid sequence shown in SEQ IDNo.1, the absorption and utilization rate of nutrient substances in feed for the piglet can be obviously increased through the biological active peptide, growth and development of the piglet can be promoted, the morbidity can be reduced, and the survival rate of the piglet can be increased. Furthermore, the preparation method of the biological active peptide for promoting growth of the piglet and application of the biological active peptide to promoting growth of the piglet and reducing the death rate of the piglet are provided. The biological active peptide for promoting growth and development of the piglet is generated under the synergistic effect of multiple kinds of enzyme production probiotics and is applied to the piglet, constructive metabolism and lipolysis of the organism are promoted, protein synthesis is promoted, and the aims of promoting growth of the piglet and increasing the growth speed of the piglet are achieved. The function of promoting growth and development of the piglet is achieved by adjusting the hormone level of an endocrine system, the problem of hormone residues is solved, and the aim of healthy and environment-friendly breeding is achieved.

The invention belongs to the technical field of natural pigment extraction. The purposes of the invention are to extract anthocyanin products from ipomoes batatas by acidic oxidation potential water by adopting an economic, safe and effective problem method aiming at the problem existing in a technology for extracting anthocyanins from the ipomoes batatas and obtain starch, proteins and a mucopolysaccharide product by extraction, so that values added of the ipomoes batatas are improved, and the method for extracting the anthocyanins from the ipomoes batatas by the acidic oxidation potential water is provided for comprehensive utilization of the ipomoes batatas. The method comprises the following steps: cleaning the ipomoes batatas, soaking the artificial acidic oxidation potential water with a pH value of 2.0-4.5, crushing, pulping, separating purple sweet potato residues, naturally precipitating, performing filtration and membrane filtration twice on an upper-layer anthocyanin aqueoussolution, and absorbing, eluting and concentrating a filtrate to obtain the pasty anthocyanins; drying and crushing the pasty anthocyanins to obtain the solid anthocyanin products. The method provided by the invention has the benefits that the consumption of a chemical reagent and the water is reduced, the product yield is improved, the extracted anthocyanins are ensured to be stable in structure, the ipomoes batatas are comprehensively utilized, the values added are improved, and economic, social and environmentally-friendly benefits are good.

The invention provides a traditional Chinese medicine composition for treating cow mastitis and a preparation method thereof. The traditional Chinese medicine composition comprises the following raw material components in parts by weight: 3-9 parts of honeysuckle, 3-9 parts of angelica, 2-6 parts of radix paeoniae rubra, 2-6 parts of dandelion, 2-6 parts of folium isatidis, 2-6 parts of cowherb seed, 2-6 parts of frankincense, 2-6 parts of astragalus, 1-3 parts of pericarpium citri reticulatae viride and 1-3 parts of licorice. The traditional Chinese medicine composition for treating cow mastitis not only comprises a plurality of small active peptides and chelating peptides, but also comprises a plurality of active ingredients of Chinese herbal medicines, multivitamins and trace elements,and can effectively treat cow mastitis; after using the additive, the antibiotics and other pharmaceutical additives can be reduced or not used, so that the defects of residual and side effects of antibiotics and chemical synthetic additives can be overcome; and the composition is suitable for promotion in livestock production and has a broad application prospect.

The invention discloses an injection for treating bovine mastitis and a preparation method thereof. The injection is characterized in that each 100 milliliters of the injection consists of 25 to 70 grams of coptis root crude medicines, 25 to 70 grams of dandelion crude medicines, extract which is subjected to aqueous extraction and alcohol precipitation by 25 to 70 milliliters of pig bile, and 1.5 to 12 grams of lincomycin. The preparation method is as follows: the injection is refined by aqueous extraction and alcohol precipitation for multiple times. The injection has strong functions of bacteriostasis and sterilization on Staphylococcus aureus, streptococcus and Escherichia coli, simultaneously has the functions of nonspecific anti-inflammation and immunoregulation, and can obviously inhibit proliferation of the Staphylococcus aureus in mammary glands, reduce PMN infiltration, and reduce the TNF-alpha level and the TNF-gamma level of the mammary tissue and the TNF-gamma level of blood serum, so as to relieve pathological injury of inflammatory media on the mammary glands. The injection is used for treating bovine mastitis, can be subjected to basin irrigation and also can be subjected to intramuscular injection, is convenient to use, has high treatment effect and small side effect, and is a novel generation of currently advanced mastitis-resistant medicine which not only has strong antibacterial action but also has the function of the immunoloregulation.

The invention provides a matte coating with soft and smooth touch. The matte coating is prepared by roller-coating a film with coating liquid and drying, and the coating liquid comprises the followingcomponents by mass: 10-40% of water dispersible resin, 60-90% of a dispersion solvent, 0-3% of an anti-blocking agent, 0-0.2% of an antifoaming agent, 0-1% of a slipping agent. 0-0.5% of a leveling agent and 0.4-5% of an adhesion promoter. The coating has good adhesive force on the surfaces of PET, NY, BOPP and PE films, and an excellent matte effect is obtained after full-page coating or local coating of the surface.

The invention provides a steady-state maize yellow pigment preparation method. The preparation method comprises the following steps: (1) removing starch from maize yellow powder, carrying out a steamexplosion treatment, extracting with alcohol, centrifuging, and collecting the supernatant to obtain a crude extract of maize yellow pigment; (2) carrying out membrane filtration and separation on thecrude extract of maize yellow pigment by using a membrane with a molecular weight cut-off of 3000Da, and collecting permeate to obtain a purified extract of maize yellow pigment; (3) evaporating andconcentrating the purified extract of maize yellow pigment to obtain a concentrate of maize yellow pigment; and (4) adding microporous starch into the concentrate of maize yellow pigment, uniformly mixing, drying, adding an water solution of gelatin and maltodextrin to obtain a mixed solution, adding ascorbyl palmitate, carrying out a homogeneous emulsification treatment to obtain a mixed emulsionof maize yellow pigment, and carrying out spray drying to obtain the microcapsule steady-state finished product of maize yellow pigment. The prepared maize yellow pigment is high in yield and good instability.

The invention relates to the field of water environment protection, in particular to a continuous separation device for micro-plastics with different densities and application of the continuous separation device. The device comprises a separation pipeline and a return pipeline. The upper end of the separation pipeline is provided with a sample inlet, and the lower end is provided with a high-pressure gas inlet; a first rotary spray head, a turnover screen, a first valve, a second rotary spray head, a second valve and a third rotary spray head are sequentially arranged in a pipeline between the sample inlet and the high-pressure gas inlet from top to bottom; the rotary nozzle is externally connected with a high-pressure fluid infusion flusher; a waste liquid pipe is arranged on the pipeline between the turnover screen and the first valve, and a third valve is arranged in the waste liquid pipe; an overflow pipe is arranged on the pipeline between the second rotary spray head and the second valve; an opening in the upper end of the return pipeline is formed in a pipeline between the sample inlet and the first rotary spray head; the lower end of the return pipeline is communicated with the lower end of the separation pipeline; the high-pressure gas inlet faces the backflow pipeline and is externally connected with a high-pressure gas pump. The device can efficiently and accurately separate micro-plastics with different densities in a water sample.

The invention relates to a synthesis method of a compound as shown by the formula (I), namely chiral beta-amino acid: an aromatic aldehyde compound. An aromatic aldehyde compound and a chiral amine auxiliary form Schiff base, and then the Schiff base is reduced to prepare an intermediate compound as shown by the formula (IV); an ester group and an acyl group are removed, and crystallization is performed to finally obtain an optically active product. The method is simple in process, high in yield and high in purity; the product is high in optical purity; no harsh reaction conditions exist; different corresponding isomers are obtained by selecting different chiral auxiliaries; the synthesis method has small pollution and is very suitable for industrial production. The formula (I) and the formula (IV) are respectively as follows: as shown in the specification.

The invention provides a bioactive peptide for promoting the growth of piglets. The bioactive peptide contains the amino acid sequence shown in SEQ ID No. 1. The bioactive peptide can significantly improve the absorption and utilization rate of nutrients in feed by piglets, and promote the growth of piglets. Growth and development, reduce morbidity and improve piglet survival rate. Further, a preparation method of a bioactive peptide that promotes piglet growth and its application in promoting piglet growth and reducing piglet mortality is provided, and the bioactive peptide that promotes piglet growth and development is produced through the synergistic action of various enzyme-producing probiotics , used in piglets to promote the body's anabolism and fat decomposition, promote protein synthesis, achieve the purpose of promoting the growth of piglets and increase their growth speed, by regulating the hormone level of the endocrine system, play a role in promoting the growth and development of piglets, and overcome the hormone residues problems, to achieve the purpose of healthy and green farming.

The invention provides a method for inactivating Avian bacillus paragallinarum bacteria liquid, which belongs to the field of bacteria liquid inactivation technology. The inactivation method is 50-65°C, stir for 30-45 minutes, then put it in 2-8°C, store it in cold storage for 3 days, and then it will be completely inactivated. The invention has simple inactivation process, short time and thorough inactivation, can effectively avoid adverse effects on antigen immunogenicity and vaccine safety due to the addition of an inactivator, and can significantly improve the vaccine production process and quality improvement.