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25 results about "Microbial loop" patented technology

The microbial loop describes a trophic pathway in the marine microbial food web where dissolved organic carbon (DOC) is returned to higher trophic levels via its incorporation into bacterial biomass, and then coupled with the classic food chain formed by phytoplankton-zooplankton-nekton. The term microbial loop was coined by Farooq Azam and Tom Fenchel et al. to include the role played by bacteria in the carbon and nutrient cycles of the marine environment.

Automatic control system and control method for microbial reaction fermentation

The invention relates to the technical field of microbial fermentation control, in particular to an automatic microbial reaction fermentation control system and a control method. The method comprises the following steps: collecting real-time microbial environment parameters and identifying a data multi-axis structure, extracting master control environment interval data, eliminating redundant signals to generate standard microbial environment data, defining a fermentation degree contrast template through fermentation historical records, and constructing a microbial fermentation timeline framework. The method comprises the following steps: acquiring standard environmental data, identifying a fermentation state of the standard environmental data, constructing a simulated microbial environmental field by using the standard microbial environmental data, performing global microbial reaction simulation, determining fermentation reaction structure partitions based on the data, performing difference comparison to generate fermentation difference data, and performing compensation simulation by using the difference data. And automatic fermentation compensation control of microorganisms is realized. According to the invention, the intelligent automatic control and optimization of the microbial fermentation process are realized, the fermentation efficiency and stability are obviously improved, and the manual intervention is reduced.
Owner:INST OF AGRI PROD DEV & FOOD SCI TIBET ACAD OF AGRI & ANIMAL HUSBANDRY SCI LHASA PEOPLES REPUBLIC OF CHINA

Intelligent sensor cooperative control method and system oriented to microbiological detection environment

The invention provides an intelligent sensor cooperative control method and system for a microbiological detection environment, and relates to the technical field of sensor control, and the method comprises the steps: carrying out the hierarchical cloud edge control architecture layout of a production workshop according to equipment distribution information and production activity information, and obtaining a cascaded hierarchical control network; the K-level cooperative control secondary center executes partition autonomous parameter mapping and outputs a K-layer distributed environment compensation strategy; the microbial environment cooperative control center carries out transition area buffer control and outputs a global cooperative control strategy; and the microbial environment cooperative control center issues a global cooperative control strategy to the environment stability maintaining equipment array based on the spatial topological relevance of the environment stability maintaining equipment, and low-fluctuation environment steady state maintenance is carried out. The technical problem that the stability of a microbiological detection environment is affected due to the fact that most microbiological detection environment adjusting systems in the prior art are based on fixed parameter setting and lack of a quick response mechanism for sudden environment changes is solved.
Owner:JIANGSU QUANZHENG INSPECTION & TESTING CO LTD

In-situ microorganism efficient remediation method for organic contaminated soil

The invention relates to the technical field of soil remediation, in particular to an efficient in-situ microbial remediation method for organic contaminated soil, which comprises the following steps: layering and dividing the contaminated soil into layers and regions, and injecting different medicaments into circulating well groups positioned in different regions to achieve the purpose of adjusting an underground microbial environment, and automatically forming and constructing an aerobic-anaerobic transition zone. Meanwhile, self-circulation of underground water is accelerated through the circulating well group, different indigenous microorganism florae are activated, and a metabolic chain is formed; and aerobic / anaerobic microorganisms are periodically injected into the injection well, an electron donor and a carbon source are synchronously provided, the steady state of an ecosphere is maintained, and the aims of optimizing the construction period and the treatment effect of the in-situ bioremediation technology of the polluted soil and the underground water are achieved.
Owner:GUANGZHOU IND CONTROL ENVIRONMENTAL PROTECTION TECH CO LTD

A device and method for low-carbon and high-efficiency simultaneous denitrification and dephosphorization of sewage and phosphorus recovery

The present invention relates to the technical field of sewage treatment, and in particular to a device and method for low-carbon and high-efficiency synchronous denitrification and phosphorus recovery of sewage. The method of the present invention realizes the coupling of short-range denitrification, anaerobic ammonia oxidation and biomineralization, and realizes the removal of nitrogen in sewage through short-range denitrification and anaerobic ammonia oxidation, and realizes the removal of phosphorus in sewage through biomineralization; while removing phosphorus, hydroxyapatite is obtained, and hydroxyapatite can be used as the core of granular sludge to ensure the stability of granular sludge, and an aerobic-anoxic-anaerobic microbial environment is formed on the granular sludge, which is conducive to the reduction of sludge; at the same time, the reaction equipment discharges sludge regularly, and the flocculent sludge and the core in the granular sludge can be separated by a dispersion device and a separation device, and the separated core can be utilized as a resource, and the separated flocculent sludge is concentrated and returned to the fermentation area, and the carbon source can be supplemented after fermentation to achieve sludge reduction.
Owner:ZHENGZHOU UNIV

Compound substrate formula for promoting healthy growth of citrus root system

The invention relates to the technical field of citrus cultivation, and discloses a compound substrate formula for promoting healthy growth of citrus root systems and a preparation method of the compound substrate formula. A formula of the compound substrate for promoting healthy growth of citrus root systems comprises the following raw materials in parts by weight: 20-30 parts of traditional Chinese medicine residues, 15-25 parts of edible fungus waste, 10-20 parts of crop straws, 8-15 parts of livestock and poultry manure, 5-10 parts of distillers' grains, 5-10 parts of vinegar residues, 3-8 parts of shell powder, 2-6 parts of mineral humic acid powder, 3-7 parts of a ternary compound fertilizer, 0.5-2 parts of an EM strain and 1-4 parts of a seaweed extract. According to the formula of the compound substrate for promoting healthy growth of the citrus root system, various nutrient elements are provided through the traditional Chinese medicine residues and the like, and the rhizosphere microbial environment is adjusted in combination with the EM strain, so that the problem that currently common citrus culture substrates mostly adopt single chemical fertilizers or simple organic materials; therefore, the problems of unbalanced nutrient absorption and limited growth of the root system are solved.
Owner:WUHAN ACADEMY OF AGRI SCI

A sealed microbial culture device and a microbial culture method

The application provides a sealed microbial culture device and a microbial culture method. The device comprises a sealed culture box, an environment control assembly, an air inlet assembly, a liquid inlet assembly and a sampling assembly. The sealed culture box is transparent and used for observing and culturing microorganisms. The environment control assembly is used for collecting and adjusting the environmental parameters in the sealed culture box. The air inlet assembly is used for providing gas into the sealed culture box. The liquid inlet assembly is used for providing liquid into the sealed culture box. The sampling assembly is arranged on the outer wall of the sealed culture box and used for extracting or discharging the gas or liquid in the sealed culture box. The application can realize the culture of microorganisms in a specific sealed environment, can adjust the environmental factors, gas and liquid factors in the sealed culture box, and avoids the influence of the gas extraction and liquid extraction process on the culture environment. The application has the characteristics of convenient operation, easy cleaning, good sealing, high use efficiency and continuous experiment.
Owner:PETROCHINA CO LTD

Method for preparing soil conditioner from fly ash and application of soil conditioner

The invention discloses a method for preparing a soil conditioner from fly ash and application, and belongs to the field of soil improvement and solid waste recycling, the method comprises the steps of fly ash grading screening, microwave-mechanical synergistic activation, acid-base modification, formula compounding, secondary biological activation and forming post-treatment, and the soil conditioner is prepared through multi-element activation and compounding. The activity and pore structure of the fly ash are improved. According to the method, the raw material utilization rate is high, the energy consumption is reduced by over 30%, the cost is low, and the prepared conditioner can remarkably reduce the pH and the total salt content of the saline-alkali soil, increase the porosity, organic matter and nutrients of the soil and improve the microbial environment; and the special formula can be used for promoting the growth of crops and increasing the yield by 15-20%, so that the special fertilizer is easy to industrially popularize and has both environmental and economic benefits.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES +3

An ecological toilet suitable for use by a locomotive driver and a control method of the ecological toilet

This invention relates to the field of ecological equipment technology, specifically disclosing an ecological toilet suitable for locomotive drivers and a control method for the ecological toilet. The toilet includes a fermentation tank and microbial cells within it, a heating device, a stirring device, a temperature sensor, a humidity sensor, a high-frequency vibration generator, and control components. The high-frequency vibration generator is mounted on the humidity sensor for cleaning it. The optimal bioactivity parameters of the microbial cells are determined using the temperature and humidity sensors, and the stirring device is controlled to perform corresponding stirring actions based on these optimal parameters. Precise humidity data is collected by the humidity sensor, thereby accurately controlling the microbial environment within the ecological toilet and improving the biodegradation effect.
Owner:CHENGDU CHAKOV ELECTRICAL EQUIP CO LTD

Method for preparing peanut shell biochar in carbon dioxide atmosphere to strengthen chicken manure anaerobic digestion

The invention relates to a method for preparing peanut shell biochar in a carbon dioxide atmosphere to strengthen chicken manure anaerobic digestion, and belongs to the technical field of agricultural waste treatment. In order to solve the problem that the ammonia inhibition relieving effect of common charcoal in the anaerobic digestion process of chicken manure is limited, the invention provides a method for preparing peanut shell charcoal in a carbon dioxide atmosphere to strengthen anaerobic digestion of chicken manure. Dried and crushed peanut shells are placed in a carbon dioxide atmosphere, heated to a pyrolysis temperature at a certain heating rate, and cooled to room temperature after heat preservation for a certain time to obtain the peanut shell biochar, the porosity and the specific surface area of the biochar are remarkably improved, the porous structure of the peanut shell biochar is effectively optimized, the biochar is used for anaerobic digestion of chicken manure, and the yield of chicken manure is increased. Ammonia inhibition can be relieved through multiple mechanisms of promoting interspecific electron transfer, improving the microbial environment, enhancing the adsorption effect and the like, the recycling value of agricultural waste is increased, and a sustainable solution is provided for anaerobic digestion of high-nitrogen organic waste.
Owner:ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE

Multi-dimensional quantitative detection method for microbial corrosion resistance of Cr-containing steel

The invention discloses a multi-dimensional quantitative detection method for microbial corrosion resistance of Cr-containing steel. The method comprises the following steps: a microbial challenge test: inoculating sulfate reducing bacteria into a culture medium, and exposing a sample in a microbial environment; performing quantitative analysis on corrosion products: performing ultrasonic rust removal on the sample by using an acid pickling solution, then calculating a weightlessness corrosion rate, and quantifying the adhesion amount of microorganisms on the surface of the sample; multi-mode electrochemical testing: monitoring the open-circuit potential and linear polarization resistance of the sample, and performing electrochemical impedance spectroscopy and potentiodynamic polarization curve testing to obtain corrosion current density and polarization resistance; surface analysis: analyzing the corrosion morphology and element distribution of the sample through a scanning electron microscope and an energy disperse spectroscopy, and determining the chemical state of the chromium element by adopting X-ray photoelectron spectroscopy to obtain the stability and the sulfur content of a passive film; and evaluating the corrosion degree: establishing a coupling model of the corrosion current density, the polarization resistance, the passivation film stability, the microorganism adhesion amount and the sulfur content, and calculating the corrosion degree.
Owner:UNIV OF SCI & TECH BEIJING

Method for analyzing rhizosphere microdomain microorganism driving mechanism for regulating cadmium accumulation of oilseed rape through selenium fertilizer

The invention is suitable for the cross technical field of agricultural environment microbial ecology and heavy metal pollution remediation, and provides a method for analyzing a rhizosphere microdomain microorganism driving mechanism for regulating cadmium accumulation of oilseed rape through a selenium fertilizer. And the physical separation of rhizosphere and non-rhizosphere soil is realized by synchronously adopting a special rhizosphere compartment micro-area device. By measuring the Cd / Se content of plants and soil, the rhizosphere microbial community structure, the functional gene (dsrA) abundance and microorganism-environmental factor correlation analysis, the system reveals that the selenium fertilizer (500-1000g Se / hm < 2 >) drives rhizosphere to enrich key functional microorganisms such as desulfothiones and geobacteria, and the sulfate reducing capacity of the selenium fertilizer (500-1000g Se / hm < 2 >) is remarkably improved (the abundance of the dsrA gene is increased by 250%); therefore, a microbial mechanism of cadmium bio-availability is reduced. The invention provides methodological and theoretical support for farmland heavy metal pollution remediation by utilizing microbial regulation and control.
Owner:YICHUN ACAD OF SCI (JIANGXI SELENIUM-RICH IND RES INST)

Pit building and maintaining method

The invention relates to the technical field of cellars, and particularly discloses a cellar masonry and maintenance method which specifically comprises the following steps: preparing strip stones and a joint mixture; the joint mixture comprises glutinous rice flour, slaked lime, wheat protein and water; the strip stones are made of red sand stones; constructing a yellow ditch and a base layer; carrying out masonry construction on the base layer by taking strip stone as a masonry material and matching with a joint mixture to finish cellar construction; and maintaining. Compared with the prior art, the method has the advantages that the prepared joint mixture is matched with strip stones to build the pit, so that the problem that the fermentation quality of fermented grains and the flavor of wine are influenced by alkaline substances is effectively avoided; after the pit is built, the pit is maintained, so that a stable microbial environment can be formed in the pit.
Owner:SICHUAN LANGJIU CO LTD

Anaerobic digestion liquid manure aerobic fermentation device

ActiveCN224411650UImprove fermentation qualityavoid harmLiquid manureFiber bundle
The utility model discloses a kind of biogas slurry fertilizer aerobic fermentors, involve biogas slurry processing technical field.Its structure includes flatbed cart and the fermentation tank, air pump and sewage pump installed on flatbed cart;S-shaped arrangement's aeration gas guide pipe is arranged in the bottom of fermentation tank, and aeration gas guide pipe one end is connected with air pump air outlet after being through fermentation tank;Aeration gas guide pipe is equipped with several aeration heads;One row of hanging rods is fixed between one relative inner wall of fermentation tank upper end portion;One row of fiber bundle fillings is installed on hanging rod.The utility model is combined by flatbed cart, fermentation tank, air pump and sewage pump to strengthen microbial decomposition, improve biogas slurry quality and safety, guarantee biogas tank stable operation, promote resource utilization and handle substandard biogas slurry in time, maintain biogas tank inner microbial environment balance, guarantee biogas continuous and stable generation;Equipment is flexible and efficient, and strong adaptability, and operation is simple and convenient, maintenance cost is low, effectively solve rural biogas slurry processing problem.
Owner:凉州区农业技术推广中心

Method for breeding and hatching seedlings of macrobrachium rosenbergii in tropical high-temperature region

The invention belongs to the technical field of macrobrachium rosenbergii breeding, and particularly relates to a method for breeding and hatching seedlings of macrobrachium rosenbergii in a tropical high-temperature region, which comprises the following steps: (1) selecting parent shrimps; (2) breeding parent shrimps; (3) breeding; according to the method, the adaptability of offspring to high temperature and severe water quality is improved from the gene level by utilizing the breeding advantage of a pseudo-female population and the ammonia-nitrogen-nitrite-resistant characteristic of male shrimps, the female-male ratio is controlled to be 1.8: 1-1.6: 1, the stocking density is smaller than or equal to 13 shrimps / m < 2 >, competition pressure and water quality deterioration caused by too high density are avoided, the mating probability is increased through reasonable matching, and the survival rate is increased. Liquorice and biological flocs are laid in an open-air cement pond, the substrate and microorganism environment is improved, pond temperature control is combined with precise temperature difference control, the physiological needs of parent shrimps are matched, the river micro-flow environment is simulated, parent shrimp gonad hormone secretion is promoted, and the breeding activity is stimulated.
Owner:HAINAN DAOXIA ECOLOGICAL TECH CO LTD

Preparation method of metal ion bridged fulvic acid-polypeptide ternary composite material

The invention provides a preparation method of a metal ion bridged fulvic acid-polypeptide ternary composite material, and relates to the field of fertilizers, and the preparation method comprises the following steps: S1, preparing a fulvic acid solution; s2, preparing a polypeptide solution: dissolving polypeptide in a buffer solution, and stirring to prepare the polypeptide solution; s3, preparing a metal ion solution: adding metal salt into a second solvent, and stirring to prepare a metal salt solution; s4, under the stirring condition, the metal salt solution is added into the fulvic acid solution for a reaction, and a composite solution is formed; s5, adding a polypeptide solution into the composite solution under a stirring condition to obtain a mixed solution; s6, carrying out centrifugal separation on the mixed solution, collecting the precipitate, and washing the precipitate; and step S7, performing vacuum drying on the washed precipitate to obtain the metal ion bridged fulvic acid-polypeptide ternary composite material. According to the invention, a three-dimensional network structure is constructed through bridging of metal ions, so that the composite material is more stable in soil acid-base and microbial environments.
Owner:YANGLING HUMIKEY BIOTECH CO LTD

Automatic optimization method for regulating and controlling key influence factors of gastrodia elata germination bacterium fermentation liquor

The invention provides an automatic optimization method for regulating and controlling key influence factors of gastrodia elata germination bacterium fermentation liquor, which comprises the following steps: designing an online experimental platform to obtain an original experimental data set; a plurality of micro sensors are integrated on the reaction unit, and data acquisition, image analysis, feature extraction, physical and chemical parameter inference and microorganism multi-component detection and activity online analysis are performed to obtain multi-dimensional biological index data; the method comprises the following steps: collecting a fermentation liquor sample, and treating and analyzing the collected sample to obtain a microorganism-environment-metabolism collaborative network; a multi-target comprehensive evaluation function and a multi-target prediction model are constructed, influences of different factors are predicted, and an optimal parameter solution set and a factor and result interpretable report are obtained; and carrying out data storage and management, and carrying out model iterative optimization. Accurate control and efficient optimization of key influence factors of the fermentation liquor are achieved, experiments and fields are integrated, the production efficiency is improved, and large-scale expansion of gastrodia elata regulation and control is promoted.
Owner:SHAANXI SENSHENG MUSHROOM TECH CO LTD

Submerged plant-ecological interface system for in-situ remediation of water bodies and preparation method and use thereof

The invention provides a submerged plant-ecological interface system for in-situ treatment of water bodies, which provides a functional microbial community and fertilizer for the growth of submerged plants, so that the submerged plants are rooted in the ecological interface to form a plant rhizosphere microbial environment with the ecological interface, and a submerged plant-ecological interface system is constructed, which can effectively improve the problems of high planting environment requirement, large construction difficulty, low planting survival rate, slow water purification effect, high maintenance cost and the like faced by the existing submerged plant purification water body; the plants and microorganisms are organically combined together to form an efficient biological repair composite, which has a significant pollution removal, water purification and water body ecological restoration effect, and has a good application prospect in the field of water pollution treatment.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES

Vaporized hydrogen peroxide disinfection parameter detection system

The utility model discloses a vaporized hydrogen peroxide disinfection parameter detection system, which relates to the technical field of microbial environment disinfection and sterilization and comprises a host and a plurality of detectors, an air inlet is formed in one end of the detector, an air outlet is formed in the other end of the detector, an air passing channel is formed in the detector, the air inlet is formed in one end of the air passing channel, the air outlet is formed in the other end of the air passing channel, and a control panel, a temperature and humidity detection probe and a hydrogen peroxide detection probe are fixedly arranged in the detector. The temperature and humidity detection probe and the hydrogen peroxide detection probe extend into the air passing channel and are in communication connection with the control panel, and the control panel is in communication connection with the host; according to the utility model, all-directional and dead-corner-free data acquisition and detection can be realized.
Owner:INST OF MEDICAL SUPPORT TECH OF ACAD OF SYST ENG OF ACAD OF MILITARY SCI

Boiler blow-off heat energy recovery and aeration adjustment combined system

The utility model discloses a boiler blow-off heat energy recovery and aeration regulation combined system which comprises a boiler, a flash tank, a first heat exchange unit, a regulating tank and an aerobic tank, a blow-off pipe of the boiler is communicated with the flash tank, a first heat exchange unit is arranged in the flash tank, the inlet end of the first heat exchange unit is communicated with air through a first air blower, and the outlet end of the first heat exchange unit is connected with two distribution branches through a second air blower; the first branch is communicated with the aerobic tank through a main valve, and the second branch is communicated with the regulating tank through a regulating valve. According to the boiler blow-off heat energy recovery and aeration regulation combined system, blow-off waste heat can be effectively utilized for controlling the temperature of the aerobic tank, and a high-quality microbial environment temperature is created.
Owner:CHINA TOBACCO HENAN IND CO LTD

Mulberry growth environment evaluation method identified based on rhizosphere microbial data

ActiveCN120632829BBiotechnologyMicroorganism
The application discloses a mulberry growth environment evaluation method based on rhizosphere microorganism data identification, and the method comprises the following steps: arranging monitoring points according to root system distance in a mulberry planting area, collecting rhizosphere microorganism identification data and environmental parameters of each monitoring point in a historical period; adopting multi-period parameter extraction to construct a data item set, and utilizing an FP-Growth algorithm to mine microorganism-environment correlation items; extracting time series data based on the correlation items, generating a prediction sequence of microorganisms and environmental parameters through an ARIMA model, combining with a mulberry growth condition to evaluate an ecological change trend, and implementing a forward and reverse microorganism regulation scheme according to mulberry growth feedback. The application fuses microorganism data and environmental parameters for correlation analysis, establishes a dynamic rhizosphere microorganism evaluation process, can accurately predict the evolution trend of the planting environment and actively regulate the rhizosphere microorganism, improves the predictability and environmental adaptability of mulberry growth regulation, and provides accurate scientific decision support for agriculture.
Owner:SERICULTURAL &AGRI FOOD RESEARCH INSTITUTE GUANGDONG ACADEMY OF AGRICULTURAL SCIENCES

Phage luminescent detection platform for rapid typing of klebsiella pneumoniae capsular types

PendingCN122326549AK pneumoniaeReceptor
This invention provides a reporter phage, its construction method, and its applications. The reporter phage comprises a nucleic acid sequence encoding a reporter protein and at least one receptor-binding protein, wherein the receptor-binding protein is partially or entirely engineered to enable the reporter phage to specifically infect specific capsular types of Klebsiella pneumoniae. The reporter phage provided by this invention enables sensitive and specific detection of Klebsiella pneumoniae in complex genetic and multi-microbial environments. In particular, the scalable and iteratively evolving reporter phage platform provided by this invention offers a universal diagnostic tool for addressing capsular diversity, guiding phage-based therapies, and providing information for epidemiological surveillance.
Owner:INST OF MICROBIOLOGY CHINESE ACAD OF SCI

Water treatment system and method for nitrogen and phosphorus removal through in-situ expansion

The invention provides a water treatment system and method for in-situ expansion denitrification and dephosphorization. The system comprises a first treatment section, a second treatment section, a third treatment section and a fourth treatment section which are sequentially arranged and communicated, and a precipitation section communicated with the fourth treatment section, wherein different microbial reaction environments are formed in the same treatment chain in each treatment section through differentiated setting of operating conditions, so that water to be treated is treated in the first treatment section to the fourth treatment section in a continuous and / or circulating manner; a composite powder carrier filler is applied in the second treatment section and can flow along with the mud-water mixture, so that the microorganisms growing in a suspension manner and the microorganisms growing in an attached manner form a coexisting composite microorganism environment; at least part of the sludge flows back to the second treatment section through the recovery device. By adopting the scheme, in-situ capacity expansion can be realized under the conditions of not increasing land and not stopping production, and the sewage treatment effect is improved.
Owner:SHENZHEN LIYUAN WATER DESIGN & CONSULTANT LTD

Microbial environment adjusting method, system and equipment for intelligent public toilet and medium

The embodiment of the invention discloses a microbial environment adjusting method, system and device for an intelligent public toilet and a medium, and relates to the technical field of data processing.The activity is quantified based on environment data through a microbial activity quantification model established in advance, and the environment data can be standardized through the model, so that the environment data can be standardized, and the environment data can be standardized; according to the method, multi-source data can be subjected to weighted summation in numerical value after standardization processing, the influence of different environmental factors on the microbial activity under the actual condition is matched by adopting a weighted summation mode, and a compactness influence factor is added in the weighted summation, so that the influence of the stacking degree in the intelligent toilet on the microbial activity is represented; according to the method, the quantized value can reflect the real activity of the microorganisms more accurately, and finally, a corresponding adjusting strategy can be generated according to the quantized value of the activity of the microorganisms to improve the microorganism environment, so that the utilization effect of the activity of the microorganisms is improved, and the use effect of the intelligent public toilet is improved.
Owner:ZHONGYUNHUI (CHENGDU) IOT TECH CO LTD

Mulberry growth environment assessment method based on rhizosphere microorganism data identification

The invention discloses a mulberry growth environment assessment method based on rhizosphere microorganism data identification, which comprises the following steps: arranging monitoring points in a mulberry planting area according to root system distance, and collecting rhizosphere microorganism identification data and environmental parameters of each monitoring point in a historical period; the method comprises the following steps: constructing a data item set by adopting multi-cycle parameter extraction, and mining microorganism-environment associated items by utilizing an FP-Growth algorithm; time sequence data is extracted based on correlation items, prediction sequences of microorganisms and environmental parameters are generated through an ARIMA model, the ecological change trend is evaluated in combination with the growth condition of the mulberries, and forward and reverse microorganism regulation and control schemes are implemented according to the growth feedback of the mulberries. According to the method, correlation analysis is carried out by fusing microorganism data and environmental parameters, a dynamic rhizosphere microorganism evaluation process is established, the evolution trend of a planting environment can be accurately predicted, rhizosphere microorganisms can be actively regulated and controlled, the foreseeability and environmental suitability of mulberry growth regulation and control are improved, and accurate scientific decision support is provided for agriculture.
Owner:SERICULTURAL &AGRI FOOD RESEARCH INSTITUTE GUANGDONG ACADEMY OF AGRICULTURAL SCIENCES

Closed-loop control mRNA delivery system based on microbial load detection and application of closed-loop control mRNA delivery system in esophageal squamous cell carcinoma immunotherapy

The invention relates to the technical field of biomedical engineering, in particular to a closed-loop control mRNA delivery system based on microbial load detection and application of the closed-loop control mRNA delivery system in esophageal squamous cell carcinoma immunotherapy. The invention provides a closed-loop control mRNA delivery system aiming at the problem that the existing mRNA vaccine adopts a fixed parameter treatment mode and lacks the capabilities of real-time monitoring and self-adaptive adjustment on the dynamic change of a microbial load in a tumor microenvironment. The system comprises: a microorganism load detection module, which quantitatively detects the load level of fusobacterium nucleatum through peripheral blood cfDNA extraction and real-time NGS analysis; the intelligent carrier module adopts a microbial environmental response type lipid nano-carrier prepared from MC3-DMA, DOPE, cholesterol and DSPE-PEG2000-FomA according to a molar ratio of 35: 30: 25: 10, DOPE-SS-CHO is added according to a load level, and mRNA of an extracellular domain of the coding FomA is encapsulated; and a dose regulation and control module. Compared with a traditional fixed dose scheme, the objective remission rate of the system is increased to 48.5% from 38.1%, the occurrence rate of adverse reactions above level 3 is reduced to 12.5% from 22.5%, and the treatment effect and safety are remarkably improved.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV