58 results about "Myxobacteria" patented technology

The invention relates to a microbial agent of sulfate-reducing bacteria, which utilizes bacteria which can secrete antibiotic namely one or several of myxobacteria, streptomycete and bacillus to form single or mixed bacterial liquid product through culturing, or form single or mixed fermentation liquor after fermenting and extracting concentrated solution products. The process for preparing the microbial agent comprises the following steps: inoculating one or several of myxobacteria, streptomycete and bacillus whose bacterial strain is activated through a slant face on an optimum culture medium to culture, and then obtaining through project domestication and scale-up culture, or obtaining through fermenting the bacterial strain under pure culture condition and a mixed culture condition. The microbial agent can completely inhibit harmful bacterium from producing in membrane deposit, which can reduce the employment of chemical agent, and is beneficial for the protection of ecologic environment, and the microbial agent is particularly suitable for the prevention and cure of sulfate ash reducing bacteria corrosion in an oil field water re-injection system, various recycle water systems and a central air-conditioning cooling water system, preparation technology is simple, and the invention is easy to implement.

The invention relates to three bacteria Angiococcus and a method for screening and purifying Angiococcus. Rabbit excrement is used as raw material for screening, and an antifungal is used to inhibit the growth of fungi such as mold and so on. Flat screening, streaking, dilution and purification, low-temperature freezing and thawing, heat treatment and so on are adopted in turn for screening and purification. A calcium chloride water culture medium which is crossways streaked by microzyme and colibacillus (living or dead fungi) is further screened to get three bacteria through separation. The three bacteria belong to Angiococcus according to the characteristics of mycology. According to Bergey Manual of Determinative Bacteriology (the ninth edition), the three bacteria belong to three new bacterial strains.

The invention relates to a process for producing one or more polyunsaturated fatty acids by means of heterologous gene expression comprising the steps of providing a production organism which comprises a heterologous gene cluster encoding a polyunsaturated fatty acid biosynthetic pathway encompassing a subsequence ER encoding an enoylreductase and a subsequence AT encoding an acyltransferase, growing the production organism in the presence of a fermentable carbon source whereby one or more polyunsaturated fatty acids are produced, and optionally recovering the one or more polyunsaturated fatty acids.

The invention discloses a microbial flocculating agent for phosphorus removal, and a preparation method and an application thereof. The preparation method comprises the following steps: inoculating acrude fiber raw material with flocculant-producing bacteria, and carrying out aerobic fermentation to obtain a primary fermentation material; inoculating the primary fermentation material with Clostridium cellulolyticum, and carrying out anaerobic fermentation to obtain a secondary fermentation material; inoculating the secondary fermentation material with myxobacteria, and carrying out aerobic fermentation to obtain a tertiary fermentation material; and extracting the tertiary fermentation material with ethyl acetate to obtain the microbial flocculating agent. The the crude fiber raw materialis inoculated with the flocculant-producing bacteria, the flocculant-producing bacteria are used to perform primary biological conversion on the crude fiber raw material, the primary fermentation material is continuously inoculated with the Clostridium cellulolyticum, the secondary fermentation material is continuously inoculated with the myxobacteria, and the myxobacteria can use dead or low-activity flocculant-producing bacteria in the secondary fermentation material as a nutrient source and further generate metabolites capable of precipitating phosphates in sewage, so the raw material utilization rate and the production efficiency are greatly improved.

The invention discloses an optimization algorithm for manufacturing enterprise logistics based on colistia navigation. The optimization algorithm comprises the following steps: firstly, constructing a colistia culture environment, giving a positive feedback mechanism for colistia navigation optimization, constructing a colistia navigation optimization algorithm, proposing a heuristic rule, and designing a non-shortest path elimination model; and constructing a workshop secondary distribution problem model based on a myxus navigation optimization algorithm, designing a multi-objective function covering the minimum logistics quantity, the maximum area utilization rate and network cross congestion correction parameters, setting constraint conditions including boundary constraints and spacing constraints, and performing optimization processing for the material handling problem in a manufacturing enterprise logistics system. According to the method, a new intelligent bionic algorithm is provided based on the intelligent behavior of the myxobacteria, the method can effectively solve the problem of path optimization of the logistics system of the manufacturing enterprise, and the future logistics scheme of the enterprise can be predicted more accurately.

The invention belongs to the technical field of power system control, and provides a method and a system for reconstructing a photovoltaic array based on a multi-target myxobacteria optimization algorithm. The method for reconstructing the photovoltaic array based on the multi-target myxobacteria optimization algorithm comprises the steps of acquiring light irradiance of each array unit of the photovoltaic array under local shadow, establishing a photovoltaic array model, utilizing the multi-target myxobacteria optimization algorithm to carry out multiple iterations on all myxobacteria positions, and in each iteration, according to the current position, obtaining the output power of the photovoltaic array by each myxobacteria, updating the two fitness degrees, obtaining all the colistis of the last iteration, screening all the high-quality colistis from the colistis, selecting one colistis from the high-quality colistis by using a comprehensive evaluation index weight method, and restoring the position of the colistis into a reconstruction scheme of the photovoltaic array. According to the method for reconstructing the photovoltaic array based on the multi-target myxobacteria optimization algorithm, the photoelectric conversion efficiency of the photovoltaic array is improved, and the method can better participate in secondary frequency modulation of a power grid.

A hypoglycemic medicine is prepared from myxobacterial sporophore or its extract and conventional auxiliaries through proportional mixing. Its advantages are high effect on reducing blood sugar and treating diabetes, and no toxic by-effect.

The invention provides a double-layer distributed multi-target multi-region economic dispatching method for rotational myxobacteria, which is a multi-target distributed double-layer intelligent optimization method and is used for solving the problem of multi-region economic dispatching. The method comprises the following steps of dividing a large-scale power system into a plurality of sub-region systems through a bus tearing method to form a first layer, continuously dividing the plurality of sub-region systems into a plurality of sub-sub-region systems to form a second layer, and then, sharing part of information of boundary virtual nodes, and safely, quickly and effectively solving the problem of multi-region economic dispatching by adopting a distributed consistency multi-target rotation myxus intelligent optimization method.

The invention relates to a microecological preparation for freshwater aquaculture, which is characterized in that the microecological preparation is paste with the water content of 15-25% and comprises the following components in parts by weight: 23-32 parts of bacillus, 4-7 parts of myxobacteria, 4-6 parts of lactic acid bacteria, 23-32 parts of saccharomycetes, 12-18 parts of nitrifying bacteria, 1-5 parts of photosynthetic bacteria and 2-3 parts of culture medium. Bacillus, myxobacteria, lactic acid bacteria, saccharomycetes, nitrifying bacteria and photosynthetic bacteria are fermented in a culture medium with the pH value of 6.0-7.5 at the temperature of 25-30 DEG C under illumination, the content of viable bacteria is high, the shelf life is as long as 24 months or longer, the microecological preparation can effectively remove inorganic nitrogen and organic nitrogen in aquaculture wastewater, the denitrification effect is remarkable, and ecological balance of the bottom of water is kept. The microecological preparation is stable in quality, safe, reliable, green, environment-friendly and pollution-free, and has a remarkable effect of promoting healthy and stable development of the aquaculture industry.

A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and / or surface migrated to the surface after product forming in order to minimize adsorption and / or colonization of bacteria.

The invention provides a method for suppressing the growth of paddy field weeds by virtue of rice straw powder and myxobacteria. The method comprises the following steps: crushing dry rice straws, and sieving and applying rice straw powder into field blocks; inductively separating myxobacteria from soil in a paddy field by adopting a rabbit manure induction method, purifying the myxobacteria, performing enlarging cultivation, mixing the myxobacteria and sterilized crushed rabbit manure, and applying the mixture into the field blocks applied with the rice straw powder to suppress the growth of the paddy field weeds by virtue of interaction of the rice straw powder and the myxobacteria. According to the method, a novel paddy field weeding method which is easy to operate, low in cost and high in ecological safety is established by the technologies, and a reference for the utilization and the development of green and safe weeding of the paddy field can be provided.