48results about How to "Has the ability to degrade" patented technology

The invention discloses an integration air purification method with wide-adaptability and high efficiency, which comprises the steps of adsorption regeneration, low temperature plasma catalyst coupling purification and tail gas absorption. First, concentration and enrichment of the harmful gas with the low concentration of 1-100ppm and air volume of 50-1000m<3>/h are carried out by adopting regenertation adsorption plant, so as to obtain clean air capable of being directly discharged; then electric heating in-situ regeneration is carried out to an absorption bed layer, so as to release gaseous pollutant with the concentration of 10-2000ppm and air volume of 2.5-50m<3>h into a low temperature plasma reactor; next, the harmful air is decomposed and mineralized during passing an catalyst bed layer; thereby, harmful microorganism and bacteria is sterilized and the side product in the tail gas is absorbed; as a result, clean air is obtained.

The invention discloses a polyvinyl alcohol-pectin embolism microsphere, a drug-loaded embolism microsphere and a preparation method. A preparation method of the embolism microsphere comprises the following steps: blending a polyvinyl alcohol solution and a pectin solution to obtain a water phase; dissolving an emulsifier in a continuous phase, and performing uniform mixing to obtain an oil phase;adding the water phase into the oil phase, and performing uniform stirring to obtain polyvinyl alcohol-pectin emulsion; dissolving a cross-linking agent namely glutaraldehyde and a catalyst namely hydrochloric acid in diethyl ether to obtain a mixture, dropwise adding the mixture into the polyvinyl alcohol-pectin emulsion, and performing a cross-linking reaction to obtain a polyvinyl alcohol-pectin suspension; and centrifuging and washing the polyvinyl alcohol-pectin suspension, and then performing freeze-drying to obtain the polyvinyl alcohol-pectin embolism microsphere. The preparation method comprises the steps of dissolving anti-tumor drug in water to obtain an anti-tumor drug solution, then placing the polyvinyl alcohol-pectin microsphere into the anti-tumor drug solution, performingstirring, and enabling the polyvinyl alcohol-pectin embolism microsphere to adsorb the anti-tumor drug to obtain the polyvinyl alcohol-pectin drug-loaded embolism microsphere. The prepared embolism microsphere has certain degradation capacity and higher drug loading capacity.

The invention provides a microbial soil improving agent for restoring petroleum polluted soil. A product is prepared from a degradation bacterial agent, an additive and a biosurfactant, wherein the degradation bacterial agent is prepared from pseudomonas, bacillus, Acinetobacter, microzyme, phosphate-solubilizing bacteria, azotobacterial, nitrobacteria and photosynthetic bacteria; the additive isprepared from the following ingredients in parts by weight: 20 to 35 parts of wormcast, 80 to 120 parts of bentonite, 1 to 10 parts of chitosan, 10 to 20 parts of kaolin, 5 to 9 parts of borax, 25 to35 parts of crop stalks, 10 to 15 parts of rice hull powder, 10 to 15 parts of dry seaweed, 1 to 5 parts of organic acid, 5 to 10 parts of vermiculite, 10 to 20 parts of shell powder and 20 to 25 parts of compound amino acid. The microbial soil improving agent for restoring petroleum polluted soil has the advantages that the soil fertility is improved; the petroleum in the soil can be degraded; the goal of governing the petroleum polluted soil is achieved.

The invention provides a pseudomonas and an application of the pseudomonas. The preservation serial number of the pseudomonas is CGMCC No.9379, and the pseudomonas has the advantages of being high in growth speed, stability and flocculant yield, efficient and the like and can be used for producing a microbial flocculant in a fermenting mode, and especially be used for producing the microbial flocculant used for flocculating sprayed paint waste water in a fermenting mode.

The invention relates to the microbiological field, and discloses novel organic halide respiration geobacter and application of the novel organic halide respiration geobacter in bioremediation of chloralkane pollutants. A geobacter IAE bacterial strain is collected in the China General Microbiological Culture Collection Center (culture collection number CGMCC) on July 7, 2020, wherein the addressis No. 3, 1 Courtyard No., Beichenxi Road, Chaoyang District, Beijing City, Institute of Microbiology, Chinese Academy of Sciences, the zip code is 100101, and the collection number is 1.5298.

The invention relates to a method for preparing flax fiber by ultrasonic combination of a mucor circinelloides DK1 strain and hydrogen peroxide. The method comprises the following steps: (1) culturing the strain; (2) preparing a crude enzyme solution; and (3) mixing a flax raw material after sterilization and a mixed solution of the crude enzyme solution and hydrogen peroxide according to the mass-to-volume ratio of 1: (10-30), regulating a pH value, then putting into a shaking bed for treatment, finally adding sodium hydroxide, increasing the temperature, degumming, removing a degumming solution, washing, stopping washing when the pH value is natural, and completing degumming. The strain adopted by the invention is short in growth period, the strain is less liable to pollution, the treatment cost is low, and the degumming condition is mild; and the degumming method is simple in process flow, the time is shortened, the energy consumption is reduced, the pollution emission is reduced, and the method is conductive to environmental protection.

The invention provides an environment-friendly waterborne acrylic coating and a preparation method thereof. The preparation method comprises the following steps of: mixing raw materials to obtain a mixture I, and then mixing the mixture I with waterborne acrylic resin and an additive in sequence to finally obtain the environment-friendly waterborne acrylic coating. The environment-friendly waterborne acrylic coating prepared by the invention has excellent comprehensive performance and relatively high efficiency of photocatalytic degradation of formaldehyde, so that the environment-friendly waterborne acrylic coating prepared by the invention can be applied to the field of environmental protection.

The invention relates to a strain for producing high-efficiency collagenase and an application thereof. The strain is preserved in China Center for Type Culture Collection on October 9th, 2020, the preservation number is CCTCC M2020574, and the address is Wuhan University, Wuhan, China. The strain has collagen degradation capacity, and the produced collagenase can be applied to collagen degradation and collagen oligopeptide production. In particular, the strain has high degradation capability on collagen raw materials such as cattle bones, fish skin and the like and can be used for further enzymolysis treatment on meat processing and fishery processing byproducts such as the cattle bones and the fish skin, cod skin is adopted as a raw material, a peptide fragment with the molecular weightsmaller than 3000Da of the prepared collagen oligopeptide is more than 95%, the molecular weight is small, the uniformity is high, and the collagen is easy to absorb and utilize by a human body, effectively improves the added value of the collagen byproduct, and has good economic benefit.

The invention relates to an engineering bacterium for degrading polycyclic aromatic hydrocarbon, an engineering reforming method and an application thereof. The engineering reforming method comprisesthe following steps: cloning from pseudomonas aeruginosa SA1, thereby acquiring a degrading gene, namely, catA2 gene, for encoding ring splitting decomposition of dioxygenase, wherein the nucleotide sequence is shown as SEQ ID No.1 and the nucleotide sequence of specific oprL promoter is shown as SEQ ID No.2; selecting a broad host range plasmid pBBR1MCS-5 as a carrier; respectively cloning catA2gene and oprL promoter into the pBBR1MCS-5 carrier, shifting to a recipient cell for clonal expansion and screening positive clone, thereby acquiring a target recombinant vector pBBR1MCS-5-oprL-catA2;utilizing pseudomonas aeruginosa SA1 as a host to convert the recombinant vector pBBR1MCS-5-oprL-catA2 into a pseudomonas aeruginosa strain through an electric shock method, thereby constructing engineering pseudomonas aeruginosa. The engineering bacterium has the capacity of degrading polycyclic aromatic hydrocarbon.

The invention discloses nanometer magnesium oxide with dark-room sterilization and sewage degradation performance. Exposed oxygen vacancy sites are arranged on the surfaces of crystal planes {111} of the nanometer magnesium oxide. The particle sizes of particles of the nanometer magnesium oxide used as an antibacterial agent are 10-50 nm. A method for preparing the nanometer magnesium oxide includes (1), mixing magnesium nitrate hexahydrate, diethylamine hydrochloride and urea with one another to obtain mixtures; (2), heating, melting, combusting, cooling and grinding the mixtures obtained at the step (1) to obtain a solid product which is the nanometer magnesium oxide. A molar ratio of the magnesium nitrate hexahydrate to the diethylamine hydrochloride to the urea is 1.0:(0.5-1.5):(0.2-2.0). The nanometer magnesium oxide and the method have the advantages that the nanometer magnesium oxide prepared by the aid of the method is capable of adsorbing active molecular oxygen and directly generating active oxygen species and is good in oxidation sterilization and degradation activity in dark-room environments; raw materials for the nanometer magnesium oxide are easily available, the earth crusts contain abundant magnesium elements, and the magnesium elements are low in cost; the method for synthesizing the nanometer magnesium oxide includes simple processes, is short in time consumption and has an excellent industrial application prospect.

The invention relates to a strain capable of degrading collagen and application of the strain. The strain is preserved in China Centre for Type Culture Collection on May 8, 2021; the preservation number is CCTCC M 2021506; and the address is Wuhan University, Wuhan, China. The strain has collagen degradation capability and can be used for preparing collagenase; and the collagenase can be applied to enzymolysis of collagen and production of collagen oligopeptide. Particularly, the strain has very strong degradation capability on collagen raw materials such as ox bones, and can be used for further enzymolysis treatment on by-products of meat processing and fishery processing such as ox bones and fish skins. According to the invention, the ox bone is adopted as the raw material; the peptide fragment with the molecular weight smaller than 5000Da of the prepared collagen oligopeptide reaches 77% or above; the molecular weight is small; the uniformity is high; the collagen oligopeptide is easily absorbed and utilized by a human body; the additional value of collagen by-products is effectively improved; and the collagen oligopeptide has good economic benefits.

The invention provides an acinetobacter FL-2 and an application thereof. The collection number of the acinetobacter provided by the invention is CGMCC No.9380 (China General Microbiological Culture Collection Center No.9380). The acinetobacter has the characteristics of high growth speed, high stability, high flocculant yield, high efficiency and the like, and can be used for fermentation production of a microbial flocculant, especially fermentation production of a microbial flocculant used for flocculating paint mist wastewater.

The invention discloses rhodotorula mucilaginosa for degrading penicillin as well as application thereof, and belongs to the technical field of microorganisms. The rhodotorula mucilaginosa was preserved in China Center for Type Culture Collection (CCTCC) on April 16, 2018, the preservation number is CCTCC M2018202, and the preservation address is Wuhan University, Wuhan, China. Compared with the existing bacterial strain with penicillin degrading capability, the rhodotorula mucilaginosa has the following advantages: the penicillin tolerance concentration (20 g/L) is 50 times that of the knownother bacterial strains in China; the penicillin concentration reducing value within the same time is far higher than the value which other bacterial strains can reach to; the rhodotorula mucilaginosais expected to be applied to treatment on bacterial residues in the actual production; and the capability of degrading the remained penicillin in the bacterial residues is extremely high.