29 results about "Biological growth" patented technology

The present application relates to a preservative-free anti-aging soothing composition containing high mountain plant extract and multiple fermentation filtrate, belonging to the technical field of cosmetics. The composition comprises high mountain plant extract complex, multiple fermentation filtrate, anti-aging active and vegetable oil. The organic acids in the multiple fermentation filtrate form a natural buffer system, maintaining a weakly acidic environment to inhibit microbial growth; at the same time, the natural components in the fermentation filtrate provide protection for nicotinamide mononucleotide and ergothioneine, delaying their degradation. The present application does not need to add additional preservatives, and has the functions of anti-aging, soothing and self-preserving.

This invention discloses a method and system for monitoring and assessing the marine aquaculture environment using IoT big data. The method includes: collecting multi-dimensional environmental parameters such as dissolved oxygen, nitrogen and phosphorus nutrients, and pH value through IoT sensing devices; performing parallel reception and status verification through a high-concurrency marine environmental data processing platform; using a multi-dimensional time-series data adaptive clustering algorithm to perform time-series segmentation and similarity clustering of the parameters; quantitatively assessing water quality status based on the clustering results using a eutrophication assessment model; and then dynamically predicting stress intensity and duration using an environmental stress response prediction model, combined with parameters adapted to the growth cycle of aquaculture organisms. The platform integrates the assessment and prediction results to generate a structured report including parameter change trajectories, level indicators, and predicted trend curves, achieving precise monitoring and assessment of the marine aquaculture environment throughout the entire process, providing reliable technical support for aquaculture environment regulation.

A general photobioreactor microbial growth rate prediction model and method thereof, the prediction model comprising a pretreatment module, a fluid dynamics calculation module, a light transmission module and a microbial growth rate mechanism module; first, a physical model of the photobioreactor is obtained; second, according to the obtained physical model and the calculation region, mesh division is carried out to construct the pretreatment module; then, the initial value of the growth parameter of the microbial particles in the photobioreactor is calculated; finally, the microbial growth rate in the photobioreactor is calculated and predicted through a coupled model of computational fluid dynamics, light intensity transmission law and microbial growth mechanism; the present application is based on physical modeling, and the computational fluid dynamics, light intensity transmission and microbial growth mechanism are coupled, thereby expanding the generality of the growth rate prediction; and the model can more accurately predict the microbial growth rate in any photobioreactor.

The application discloses a preparation method of electrochemically modified sweet potato residue pectin, and products and applications of the electrochemically modified sweet potato residue pectin. The sweet potato residue pectin is modified by using an electrochemical method, and the process is simple, green and efficient, and an anode modified pectin with high antibacterial activity and a cathode modified pectin with excellent wide-pH gel performance can be simultaneously prepared. Application researches show that the cathode modified pectin is combined with cinnamaldehyde to form stable milk gels, and the evaporation of water and the volatility of cinnamaldehyde can effectively delay strawberry spoilage; the anode modified pectin coating can significantly prolong the shelf life of refrigerated beef by 2 days, inhibit the growth of microorganisms and maintain the meat color and quality. The application provides a new idea for green modification of the sweet potato residue pectin and expands the application potential of the sweet potato residue pectin in food preservation and functional materials.

This invention discloses a method and apparatus for preserving fresh Chinese medicinal herbs using a combined electric and magnetic field, belonging to the field of post-harvest preservation technology. The method includes: placing cleaned and disinfected fresh Chinese medicinal herbs in a storage device, while simultaneously applying a low-frequency polarized electric field and a static magnetic field; wherein the output voltage of the low-frequency polarized electric field is 3000 V, the current is 1-5 mA, the frequency is 50-60 Hz, and the electric field strength is 25-35 kV / m; the strength of the static magnetic field is 350-450 Gs. This invention effectively regulates cell membrane permeability and free radical metabolism through the spatial synergistic effect of the low-frequency polarized electric field and the static magnetic field, significantly delaying post-harvest decay of Chinese medicinal herbs, inhibiting microbial growth, maintaining the stability of active ingredients, and achieving good preservation effects even at relatively high storage temperatures. It has advantages such as energy saving, being green, easy to operate, and highly applicable, and is suitable for the storage and preservation of various fresh Chinese medicinal herbs.

This application discloses a method for association analysis based on high-throughput dynamic phenotypes and genetic effects, relating to the field of agricultural bioinformatics. By fitting growth curves to high-throughput dynamic phenotype data from multiple time points, the dynamic changes in the growth cycle of a biological population are obtained. A joint likelihood function algorithm is then constructed to associate this dynamic vector with genetic effects, revealing genetic markers related to growth and development trends and processes. Compared to existing GWAS methods, which can only analyze static, single-time-point phenotype data and cannot uncover genetic loci regulating biological growth and development, this application, by performing association analysis on data collected from multiple consecutive time points, can more comprehensively reveal the evolutionary patterns of phenotypes over time, thereby achieving accurate analysis of genetic markers.

The application provides a carbon source intelligent screening method and device for strengthening microbial degradation of emerging pollutants, and belongs to the technical field of pollution control. The method adopts a carbon source screening model constructed and trained based on coupling of a large language model and machine learning, intelligently screens based on gene characteristics of microorganisms in a microbial community and candidate carbon source characteristics to obtain an advantage specific carbon source of functional microorganisms, and can screen the advantage specific carbon source for promoting growth of the functional microorganisms, so that the functional microorganisms are directionally enriched in the microbial community, the in-situ emerging pollutant degradation capacity of the microbial community is improved, and the treatment effect of the emerging pollutants is further improved.

This application discloses an odor-removing product comprising an absorbent with an adsorption surface; a neutralizing agent comprising an acidic odor remover and an alkaline odor remover, each fixedly disposed on the adsorption surface; the acidic odor remover neutralizes alkaline odor components, and the alkaline odor remover neutralizes acidic odor components; and a biological inhibitor disposed on the adsorption surface to inhibit microbial growth. Therefore, it can neutralize and remove odors from both alkaline and acidic odor components, thereby achieving deodorization, and also inhibits microbial growth based on the biological inhibitor to prevent bacterial proliferation, thus achieving both odor removal and antibacterial effects and improving the user experience.

This invention belongs to the field of lithium adsorbent technology, and discloses an aluminum-based lithium adsorbent, its preparation method, and its application. The method involves mixing water-soluble lithium salt, aluminum salt, graphite analog, and an antibacterial agent to obtain a mixed solution. After pH adjustment, reaction, and filtration, an active powder is obtained. This powder is then mixed with a binder dissolved in a solvent, granulated, dried, and sieved to obtain the aluminum-based lithium adsorbent. In this aluminum-based lithium adsorbent, the sharp lamellar structure of the graphite analog surface can disrupt cell integrity, and the oxygen-containing functional groups release reactive oxygen species and free radicals to inhibit microbial growth and increase the mechanical strength of the adsorbent. The doped antibacterial agent interferes with cell metabolism, and the two work synergistically to enhance the antibacterial effect. This material inhibits bacteria through physicochemical means, is less likely to induce drug resistance, extends service life, reduces the risk of biocontamination, and improves adsorption capacity and efficiency.

The application provides an environment-driven edible mushroom growth prediction method and system, and belongs to the technical field of intelligent agriculture, and comprises the following steps: constructing an environment feature vector corresponding to each time according to environment data in a to-be-predicted period; inputting the environment feature vector into a dynamic parameter mapping model trained based on an actual growth parameter label to obtain a dynamic growth parameter corresponding to each time; calling a dynamic biological growth equation in which a static constant term is reconstructed into a dynamic variable parameter; and assigning the dynamic growth parameter to the dynamic biological growth equation to obtain a biomass growth prediction value at each time. The application fuses the flexibility of data driving and the interpretability of a mechanism model by constructing a mapping relationship between an environment and a mechanism parameter by using machine learning and driving a mechanism equation by using a dynamic parameter, so that high-precision prediction of the biomass of edible mushrooms under a complex dynamic environment is realized.

This invention provides a capsaicin / sodium alginate-polyacrylamide hydrogel-modified PDMS antifouling coating, its preparation method, and its application, belonging to the field of marine antifouling materials technology. It comprises three components: hydrogel, the natural antifouling agent capsaicin, and polydimethylsiloxane. The synthesis process consists of three steps: first, adding natural capsaicin to the acrylamide hydrogel synthesis process; second, mixing sodium alginate solution with capsaicin to form a precursor solution, which is then added to an initiator for polymerization; and third, slowly adding the polymerized and dried capsaicin-hydrogel powder to a degassed PDMS prepolymer mixture. This invention effectively inhibits the growth of marine fouling organisms with natural capsaicin, utilizes the hydrogel as a toughening reservoir to continuously release an environmentally friendly antifouling agent, and achieves low surface energy antifouling through the polydimethylsiloxane layer, resulting in synergistic benefits. By intervening in the biofouling process from multiple angles, the composite material jointly addresses marine biofouling.

This invention discloses a targeted drip irrigation liquid compound fertilizer for saline-alkali soil root zones and its preparation method, belonging to the field of soil improvement technology. It comprises, by mass percentage: an organic acid complexing calcium-magnesium system, using citric acid and gluconic acid in a mass ratio of 2:1 to 3:1 as the complexing agent; total organic acids 8%–15%; and Ca... 2+ Content 2%~5%, Mg 2+ Content 0.5%~1.5%; humic acid 3%~8% and biochemical fulvic acid 2%~5%; microcapsule-encapsulated salt-tolerant growth-promoting bacteria; xanthan gum 0.1%~0.3%; balance water to 100%; pH 6.0~7.0. In preparation, calcium and magnesium are first complexed, then humic acid is added to adjust the pH, and finally the encapsulated bacterial agent is added at low temperature. The calcium and magnesium ions in the organic acid complex are completely water-soluble and can be accurately delivered to the root zone through drip irrigation. The microcapsules protect the bacteria to survive in the organic acid environment, realizing the spatiotemporal synergy of chemical salt reduction and biological growth promotion in the root zone.

The application provides an antibacterial peptide-flavor linked light response pro-perfume and an application thereof, and the pro-perfume is prepared by linking antibacterial peptides after the reaction of hydroxyl or carboxyl of an alcohol or carboxylic acid flavor molecule with (5-amino-2-nitrophenyl) methanol. The antibacterial peptide-flavor linked light response pro-perfume prepared by the application has good light response release performance, can prolong the flavor release duration and improve the fragrance retention, significantly improves the utilization rate of the flavor, breaks through the traditional passive release mode to realize active regulation, has high efficient broad-spectrum antibacterial activity, and the linked antibacterial peptides endow the pro-perfume with antibacterial performance to effectively inhibit the growth of microorganisms; in addition, the amino and amide groups of the antibacterial peptides improve the water solubility of the pro-perfume, and further broaden the application range of the pro-perfume. The raw materials are easy to obtain, the synthesis steps are simple, the conditions are mild, and the yield is high. The commercially available raw materials can be simply synthesized under mild conditions to realize large-scale production, and the application has wide market prospect and economic benefits.

This invention discloses a colorimetric diluent for the determination of microorganisms in food and its preparation method. The colorimetric diluent comprises sterile physiological saline and Brilliant Blue FCF at a final concentration of 0.0001%~0.1%. By adding a trace amount of food-grade blue pigment to the diluent, a clear blue color is achieved, allowing operators to visually judge the mixing state of the sample and diluent through the uniformity of the blue color, thus visualizing the series of dilution processes. This invention also discloses the preparation method of the colorimetric diluent and its application in the determination of total bacterial count. Experimental verification shows that the colorimetric diluent has no significant effect on the growth of common food microorganisms, does not affect the coagulation performance of PCA medium, and is fully compatible with the testing procedures of the national standard GB 4789.2-2022. This invention is low-cost, easy to operate, and can effectively reduce operator variability, making it particularly suitable for teaching and training, grassroots quality inspection training, and microbiological testing in standardized laboratories, with good prospects for industrial application.

The utility model provides a kind of multilayer structure nanofiltration membrane, it is related to nanofiltration membrane technical field, including high-strength support layer, the outer surface wall of high-strength support layer is provided with buffer transition layer, the outer surface wall of buffer transition layer is provided with anti-pollution bottom layer.In the utility model, under the interaction of nanofiltration membrane multilayer structure, the function of nanofiltration membrane can be diversified, efficient and stabilized, wherein high-strength support layer can withstand high pressure, prevent deformation or damage of membrane during operation, protect the structural stability of membrane, buffer transition layer can effectively relieve stress between support layer and other functional layers, make each layer tightly connected, anti-pollution bottom layer can reduce the attachment of pollutants, inhibit microbial growth, prolong the service life of membrane, nanometer channel construction layer can improve the separation precision of membrane, realize efficient interception of target substance, selective separation layer can selectively intercept specific ions and small-molecule organic matter, improve the separation effect of nanofiltration membrane.

The embodiments disclose an apparatus for testing organic plant materials for microbial contamination including machine-readable QR code identifiers associated with multiple facility testing locations, samples from each location are treated with microorganism-specific growth stimulator solutions and incubated locally in a portable incubator to accelerate microbial growth, a plurality of sensors and a camera, wirelessly coupled to a remote server, capture environmental data and images of the incubated samples, an artificial intelligence (AI) engine on the server analyzes the images and sensor data, correlates them to respective QR code identifiers, and compares them against a pattern recognition database to identify microbial contaminants, a mobile application displays AI-generated contamination reports, remediation recommendations, and a facility heat map identifying locations of recurrent infestations, a machine learning system continuously updates remediation determinations based on sensor feedback, an AI-enabled contamination prediction module models the spread of contamination and generates preventative recommendations to aid in eradication.

The application discloses a kind of environmental friendly room temperature phosphorescence mycelium material biological growth self-assembly method, belong to biotechnology field.In the process of fungal growth, sulfonic acid group with different pi conjugated structure is self-assembled into mycelium by biological growth, thereby inhibiting the non-radiative decay of triplet exciton, realizing efficient room temperature phosphorescence emission.And by changing the conjugation degree of chromophore, full color adjustable afterglow from blue to red is realized.Under the above technical scheme, the room temperature phosphorescence mycelium material of the application is self-assembled by biological growth, which simplifies the production process and reduces the generation of carbon footprint in the process, not only can be completely degraded in nature, but also can improve soil fertility to promote plant growth.The method is helpful to develop environmentally friendly room temperature phosphorescence material and expand the application of fungi in the field of functional optics.

Provided is a novel short antimicrobial peptide. Additionally, the novel short antimicrobial peptide can be used to inhibit microbial growth, and / or promoting wound-healing more effectively.

Methods of forming spinel ferrite nanoparticles containing a chromium-substituted copper ferrite as well as properties (e.g. particle size, crystallite size, pore size, surface area) of these spinel ferrite nanoparticles are described. Methods of preventing or reducing microbe growth on a surface by applying these spinel ferrite nanoparticles onto the surface in the form of a suspension or an antimicrobial product are also described.

A processing method for long-shelf-life whole egg liquid includes the following steps: S1, raw material pretreatment; S2, primary enzymatic hydrolysis of whole egg liquid; S3, secondary enzymatic hydrolysis of whole egg liquid; S4, degassing and cooling; S5, filling; and S6, ultra-high pressure sterilization. This invention employs a synergistic process of "stepwise enzymatic hydrolysis + vacuum degassing + ultra-high pressure sterilization." Phospholipase hydrolysis of the whole egg liquid improves its stability and generates antibacterial components. Subsequent bromelain-transglutaminase complex enzymatic hydrolysis produces antimicrobial peptides through proteolysis while simultaneously preventing excessive protein degradation and inhibiting microbial growth through transglutaminase. Combined with vacuum degassing to reduce oxidizing agents and the highly efficient antibacterial effect of ultra-high pressure sterilization, the finished whole egg liquid can achieve a shelf life of over 37 days under 4°C refrigeration conditions, far exceeding the traditional 15-21 days for whole egg liquid, thus solving the spoilage problem during storage and distribution.

This invention belongs to the field of nuclear power plant three-loop operation control technology, specifically relating to a method for controlling seawater dosing in nuclear power plants. Step 1: Install temperature sensors on the main cooling water pipeline of the three-loop system to collect cooling water temperature data in real time and transmit it to the control station. Step 2: Establish a model corresponding to cooling water temperature and aquatic organism growth rate. Based on the collected cooling water temperature, derive and preset a correlation curve between cooling water temperature and target sodium hypochlorite concentration. Dynamically correct the target concentration based on the real-time collected cooling water temperature and the current measured concentration. Step 3: After receiving the real-time cooling water temperature data, the control station automatically calculates the required target sodium hypochlorite concentration based on the preset curve. Simultaneously, it obtains the real-time concentration of sodium hypochlorite in the cooling water through a concentration sensor, compares the results, and then performs control measures. This invention achieves intelligent management of seawater dosing in the three-loop system, improving the safety, stability, and economy of system operation.

The utility model discloses a kind of oxidation ponds for medicinal packaging bottle production, it is related to microorganism control technical field, including pool body;Pool body inside is connected with moving plate, and lifting mechanism is connected between moving plate and pool body;Pool body top is connected with top cover, and stirring mechanism is connected between top cover and pool body.The utility model moving plate (net plate) is located in pool body inside, moves up and down by lifting mechanism (electric winding wheel and pull rope), runs by electric winding wheel, and electric winding wheel is rotated by pull rope, to promote or reduce moving plate, and packaging bottle on moving plate is brought upward, electric winding wheel is rotated by pull rope, and moving plate is promoted to certain height, packaging bottle is no longer soaked in pool body, and packaging bottle is dried, by lifting packaging bottle from liquid environment, drying speed can be accelerated, and moisture residue of dried packaging bottle is less, which helps to keep the cleanliness and hygiene of packaging bottle, reduce the risk of microbial growth.

The present invention relates to the use of a mixture of a) 2'-fucosyllactose (2'-FL) or 3'-sialyllactose (3'-SL); and b) a compound selected from 3-[(2-ethylhexyl)oxy]-1,2-propanediol (= ethylhexylglycerol), propan-1,2-diol, propan-1,3-diol, glyceryl octanoate, pentan-1,2-diol, heptan-1,2-diol and hydroxyacetophenone for reducing the growth of microorganisms.

The application discloses a kind of abnormal detection and adaptive control system in bacterial amplification culture process, belong to the field of microbial engineering technology.The system includes acousto-optic synergistic physical field perception, multi-physical field signal processing and adaptive closed-loop control three subsystems.Perception subsystem emits active physical field excitation and captures acousto-optic response and fluid background noise signal;Processing subsystem calculates bias vector by multi-scale entropy calculation and relaxation response analysis, and constructs state point in reconstructed dynamic phase space;Regulation and control subsystem adjusts environmental parameters by bias driving actuator.The application realizes real-time correction of microbial growth trajectory and automatic optimization of environmental parameters through multi-parameter phase space mapping and closed-loop control.

This application provides a method for improving farmland quality through the synergistic effect of water-retaining agents and microbial stratification. The method is used to treat farmland in semi-arid sandy soil areas and includes the following steps: applying a first mixture at a first depth below the surface to form a first target layer, the first mixture comprising microbial fertilizer and straw; applying a second mixture at a second depth below the surface to form a buffer layer, the second mixture comprising humic acid and calcium-based bentonite; and applying an ionic synthetic water-retaining agent at a third depth below the surface to form a second target layer. The first target layer, buffer layer, and second target layer are arranged sequentially from bottom to top. The buffer layer is used to promote microbial metabolic activity through ion regulation. This application, by constructing a buffer layer with high cation exchange capacity and high complexing ability, compensates in situ for the chemical buffering shortcomings of sandy soil, fundamentally breaking through the technical bottleneck of the mutual constraint between water retention and biological growth promotion functions, and significantly improving farmland quality.

To obtain a sufficient inhibitory effect on microbial growth. [Solution] A non-carbonated fruit juice beverage containing 3.3 ppm or more of iso-alpha acid and with a pH of 4.0 or less.

This utility model discloses a multi-agent cross-dispensing and conversion device, relating to the field of seawater cooling and utilization technology. The utility model includes an installation box, an installation component, and a dispensing component. The installation component is located at the lower end of the installation box, and the dispensing component is located on the side wall of the installation box. By setting up the dispensing component and control panel, this utility model allows non-oxidizing and oxidizing bactericides to be injected into two No. 1 storage tanks through the feed hopper, while dispersants and defoamers are injected into two No. 2 storage tanks. Then, the third electrically controlled valve is opened via the control panel to allow the agents to enter the dispensing frame. After the discharge pipe faces the water surface, the agents, whose dosage is monitored by a separate liquid level sensor, are discharged into the circulating seawater through the discharge pipe to inhibit microbial growth. This eliminates the need for manual control of agent dispensing. The separate liquid level sensor can monitor changes in the liquid level in the No. 1 and No. 2 storage tanks to determine the agent dosage, resulting in better practical effects.

Pesticides, pesticide controlled release systems, and their methods for delivering an effective amount of a pesticide to an environmental medium to treat, kill, or inhibit the growth of a pest, including a weed, microbe or other undesired organism.