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195 results about "Optimum growth" patented technology

The growth rates are the highest at the optimum growth temperature for the organism. The lowest temperature at which the organism can survive and replicate is its minimum growth temperature. The highest temperature at which growth can occur is its maximum growth temperature.

Method for cultivating cherries and tomatoes

The invention discloses a method for cultivating cherries and tomatoes. The method comprises the steps of: cultivation preparation, seedling raising, planting, flower and fruit protection, rich water management and picking. The method has the advantages that: cultivation matrix bags are adopted for cultivating the cherries and the tomatoes without soil, so continuous cropping obstacles do not happen, the conditions of a greenhouse cannot be limited by seasons, and the production can be arranged for annual supply according to the market requirement; and the preparation of nutrient solution is adjusted according to different growth periods, optimal growth effect is achieved, the cherries and the tomatoes are vigorously grown, the yield is increased, the quality is improved, plant diseases and insect pests are reduced, the consumption of pesticide is reduced, and the environmental pollution is reduced.
Owner:镇江市京口区瑞京农业科技示范园

Enterococcus faecium for feeding and applications thereof

The invention relates to enterococcus faecium for feeding as well as a freeze-drying fungicide and applications thereof, and discloses enterococcus faecium LAB12 CGMCC (China General Microbiological Culture Collection Center) No.4847 which is grampositive cocci, has no spores, grows well on an MRS agar plate, forms a round bacterial colony with the diameter of 0.5-1mm within 48 hours and is used for feeding, and the bacterial colony is round, smooth and upheaved, and is a shape of grey white dewdrop; the enterococcus faecium grows in a facultative anaerobic condition; the growth temperature range is 10 DEG C-45 DEG C; the optimum growth temperature is 30 DEG C-40 DEG C; and the growth pH value is 4-10, and the optimum pH value is 6.0. The freeze-drying fungicide formed by the bacterial strain is nontoxic and harmless, is gastric juice resistant, is cholate resistant, has a high inhibitory effect for multiple harmful bacteria, has a long quality guarantee period, can be widely applied to birds and livestock breeding to strengthen the animal disease-resistant capability, and is expected to be the substitution of antibiotics for feeding.
Owner:北京金泰得生物科技股份有限公司

Plant cultivating apparatus using subirrigation

The present invention provides an apparatus and method of cultivating a plant using a subirrigating method. The apparatus includes a culture medium cell constructed in such a manner that artificial culture medium is packed in a packing material having excellent ventilation and moisture absorptivity to be shaped in a predetermined form, a planting pot which contains the culture medium cell and has holes through which a sufficient amount of nutritive solution and air pass, a cooling / heating device set in the lower portion of the culture medium cell to cool or heat the root of the plant, and a nutritive solution supplying device for automatically supplying the nutritive solution to a plant planted in the culture medium cell placed a distance from one or more nutritive solution containers, thereby supplying the nutritive solution and air to the root of the plant continuously to maintain the optimum growth environment, forcing the plant growth.
Owner:WANG YOUNG SUNG

Artificial cultivation technology for cultivating panicled fameflower

Artificial cultivation technology for cultivating panicled fameflower, which is characterized in that the rhizome transplanting or seed planting is conducted on the mountain area and hillock with short sunlight and red sand soil without air pollution; the soil is kept dry during the cultivation process; and no fertilizing or pesticide spraying is conducted. The technology changes the existing wild environment of the panicled fameflower, the best growth condition is created artificially, and the yield is high; the per mu yield is about 5000kg in the first year after the transplanting is conducted and the per mu yield is more than 15 thousand kg every year after the first year; and the concentrated cultivation is convenient for collection. The panicled fameflower growing in an environment of no air pollution or pesticide spraying has good taste, no pollution and rich nutrition, and sufficiently plays the food and medicine functions.
Owner:刘文龙

Artificial domestication technology of panicled fameflower root

The invention discloses an artificial domestication technology of panicled fameflower root, which is characterized by comprising operation technologies of seed treatment, planting and field management stages. The conventional wild environment of the panicled fameflower root is changed by the artificial domestication technology, the best growth conditions of the panicled fameflower root are artificially created, a growth period is prolonged, yield is high, the yield per mu in the current year can be 5,000 to 8,000 kilograms by direct seeding or transplantation, and the yield per mu each year after the current year can be more than 15,000 to 20,000 kilograms. The panicled fameflower root is concentratedly cultivated to facilitate collection. The panicled fameflower root which grows in the environment without air pollution or pesticide spray has good mouthfeel and full nutrients and is pollution-free, and edible and medicinal effects of the panicled fameflower root are fully exerted.
Owner:湖南好皮夫制药有限公司

Fruit cucumber cultivation method

The invention discloses a fruit cucumber cultivation method, which belongs to the technical field of agricultural cultivation. The method comprises the following steps: A, seed selection; B, planting land selection; C, sowing and harvesting time selection; D, strong seedling cultivation; E, fertilizing and soil preparation; F, field planting; G, watering and topdressing; H, plant adjustment; and I, timely harvesting. By using the fruit cucumber cultivation method disclosed by the invention, due to the selection of planting conditions and the scientific rationality of the planting method, fruit cucumber can achieve the optimal growth effect and are robust in growth, rapid in growth speed, high in yield and good in quality, so that the plant diseases and insect pests are reduced, the application amount of pesticides is reduced, the environmental pollution is reduced, and the needs of people on fruit cucumbers can be satisfied.
Owner:镇江市丹徒区绿业生态农业有限公司

Color matching method and system of plant growth lamps

The invention discloses a color matching method and system of plant growth lamps. After the plant growth lamps are numbered in sequence, preset dimming signals are provided for driving signals of theplant growth lamps so that the plant growth lamps can emit light sources according to different red-blue spectral intensity ratios; growth state data of plants corresponding to different plant growthlamps is collected, the data and the serial numbers of the plant growth lamps are sent to an intelligent terminal, the intelligent terminal collects the data and the serial numbers and conducts calculation, then the red-blue spectral intensity ratios of the plant growth lamps under the best growth state are obtained, and finally the red-blue spectral intensity ratios of the plant growth lamps areuniformly set as optimum values. The color matching method is high in automation degree, can automatically complete the detection and calculation process, and is high in calculation efficiency and speed, the optimum spectral ratios of the plant growth period can be traced and determined in the full process, the intelligent terminal can adopt a common intelligent mobile phone or a computer and is easy to operate and high in working efficiency, manual data processing is not needed, labor is saved, and the planting cultivation cost is lowered.
Owner:GUANGZHOU DASEN LIGHTING ELECTRONICS

Outdoor cultivator for photosynthetic microorganisms

A novel waterborne cultivator, which provides the benefits of known systems for culture of photosynthetic micro-organisms in a novel configuration, incorporating a simplified, two-phase rotary mixing and gas injection system, the two phases being liquid and gas (CO2). The mixing system provides optimum growth conditions through increased turbulent vertical mixing and increased levels of dissolved CO2 throughout the cultivator via injection of flue gas or other CO2-bearing gas stream. The system thus provides efficient capture and sequestration or reuse of CO2 while producing valuable biomass for food, feed, and fuel use. The waterborne configuration provides further benefits of passive temperature control and automatic leveling for consistent culture depth. Additional benefit is provided by an enclosed design which reduces contamination and evaporative loss by isolating the photosynthetic culture from the outside environment. The simplified and well-integrated design of the cultivator and mixing system greatly reduces capital and operating costs compared to previously known systems.
Owner:ELEMENT CLEANTECH

Greenhouse cluster environment regulation and control method and system

The invention provides a greenhouse cluster environment regulation and control method and system. The method comprises the steps that if the value of the external environmental meteorological information forecasted according to the given meteorological forecasting model is within the optimal growth environmental range of the target greenhouse crop, the dynamic environment regulation and control mechanism in the target greenhouse is controlled to be turned off and the target greenhouse environment is enabled to be communicated with the external environment, wherein the given meteorological forecasting model is constructed by using a neural network algorithm based on the sample meteorological information of the greenhouse cluster in which the target greenhouse is located in advance. Furthermore, the system comprises a greenhouse environment regulation and control module 3 and also comprises an actual meteorological information acquisition module 1 and a meteorological information forecasting module 2. The greenhouse environment regulation and control module 3 can realize the method. The relatively standard meteorological environment reference can be provided, the optimal growth environment can be provided for the crops in the greenhouse, and the resource consumption can be reduced and the overall economic benefit can be enhanced.
Owner:CHINA AGRI UNIV

Solar power supply remote measure and control three-phase motor full automatic irrigation water pump

The invention relates to the technical field of electronics, in particular to a solar power supply remote measure and control three-phase motor full automatic irrigation water pump. The water pump comprises a soil humidity sensor, a wireless transmitter, a water source detection sensor, a water source optical coupler control switch, a wireless receiver and a three-phase motor water pump. The solar power supply remote measure and control soil humidity water pump achieves full automatic irrigation control in the crop field wherein an altering current power supply is inconvenient to lay, especially in the crop field away from a water source, insufficient in water source and with uneven terrain, enables different crops to be in the optimum growth state, and greatly improves the agriculture planting production level. The soil humidity sensor and the water source detection sensor adopt electrode sine wave sensing, and effectively prevent electrolytic etching and prolong service life. The water pump has the advantages of wireless receiving / transmitting crystal oscillators, high stable frequency remote measure and control, pulse coding, high coding capacity, high anti-interference and stable reliable operation in adjacent crop fields without interference. The water pump is widely applied to crop field irrigation to ensure soil humidity and meet the crop growth requirement.
Owner:SHANDONG HEZE ZHENHUA PRECISION MOLD

Bacilluslicheniformis and application thereof

The invention relates to a Bacilluslicheniformis BG05 strain CCTCC NO.M2010251 and application thereof in the production of a strong-flavor and Maotai-flavor liquor. The optimum pH value of the strain is about 7.0, the optimum growth temperature is 40-50 DEG C, soybeans or chaff is used as the fermentation substrate and can send out aroma, and the fermentation substrate has a high free amino acid content and has favorable heat resistance. Thus, the strain is applicable to the fermentation production of a strong-flavor and Maotai-flavor liquor based on a solid-state method, can enhance the flavor of high-temperature yeast for production, promotes the typical flavor of the strong-flavor and Maotai-flavor liquor, and is economic and environment friendly.
Owner:湖北白云边酒业股份有限公司

Method for preparing 2-keto-L-gulonic acid

The invention discloses a method for preparing 2-keto-L-gulonic acid. The method is characterized by comprising the steps of: independently cultivating large bacteria, successively carrying out microfiltration and ultrafiltration treatment on the obtained large bacteria fermentation liquor to obtain an active substance concentrated solution; and feeding the obtained active substance concentrated solution of the large bacteria to a small bacteria culture medium to promote small bacteria to convert sorbose into 2-keto-L-gulonic acid. By adopting the method, the large bacteria are independently cultivated; preferably, the large bacteria are synchronously cultivated, so that the optimum growth condition of the large bacteria can be met; the production efficiency is improved; an active enzyme substance of the large bacteria is collected to transfer into small bacteria fermentation liquor by adopting advanced microfiltration and ultrafiltration technologies; bottom sugar and pH of the small bacteria fermentation liquor can be further stabilized by feeding the sorbose solution and a pH maintaining agent; the quantity of the small bacteria is increased; the growth time of thallus is shortened; the reaction rate of converting the sorbose oxidized by the small bacteria into 2-KLG is quickened; the fermentation cycle is shortened; the concentration of a product is improved; the production cost is reduced; and the market competitiveness of an enterprise is improved.
Owner:SHANDONG TIANLI PHARMA

Crop growth environment control method and device, computer equipment and storage medium

The invention discloses a crop growth environment control method and device, computer equipment and a storage medium. The method can comprise the steps of acquiring the current growth stage and growthstate information of crops in a greenhouse; inputting the growth stage and growth state information into a prediction model to obtain a predicted optimal value of an environment variable; and adjusting the environment variable value in the greenhouse according to the predicted optimal value. By applying the scheme provided by the invention, crops can be in an optimal growth environment as much aspossible, and the accuracy of an adjustment result is improved.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD

Solar photovoltaic greenhouse for mulberry planting

The invention relates to a solar photovoltaic greenhouse for mulberry planting. The solar photovoltaic greenhouse for the mulberry planting is characterized in that the greenhouse is arranged in the east-west direction and inclines towards the west by 5-7 degrees, a foundation is higher than the ground by more than 20 centimeters, heat preservation ditches are arranged at four edges in the greenhouse, a solar cell is arranged at the top of the greenhouse, and light-transmitting films, plane mirrors and photovoltaic ventilated windows are distributed all around the greenhouse. The photovoltaic ventilated windows are arranged at positions higher than mulberry plants and provided with insect-proof screens, photovoltaic light supplement lamps are distributed in the periphery of the greenhouse and the upper portions of the mulberry plants, a photovoltaic water pump is arranged in a water storage tank and connected with pipelines of a solar hot water device, a spray irrigating device and a cleaning device. According to demands of optimum growth of the mulberry planting, the solar photovoltaic greenhouse for the mulberry planting is suitable for the mulberry planting, and therefore mulberry planting environment can be controlled, influences of adverse weather can be reduced, quantity and quality of mulberries can be improved, the mulberries can spout early, bloom early, ripen early and go to markets early, and good economic benefit and good social benefit can be achieved.
Owner:WEIHAI XINYI BIOLOGICAL TECH

High-yield strain for producing L-alanine by fermentation and preparation method thereof

The invention relates to a high-yield strain Lds.0108 for producing L-alanine by fermentation. The high-yield strain is deposited in the China Center for Type Culture Collection with an accession number of CCTCC M2013361. The strain is a mutant strain by using Lactobacillus delbrueckii subsp. Bulgaricus (GIMI.155) as an initial strain, mutagenizing cells by utilization of a low energy ion implantation method, and screening by a reversible inhibition assay method. The growth temperature range of the strain is 35-40 DEG C. The optimum growth temperature is 37 DEG C and the optimum pH value is 7.0. A slope culture medium used is an MRS culture medium. Glucose and other carbohydrates are used as substrates for the strain. The L-alanine is produced by fermentation under anaerobic conditions. Impurities are removed by ultrafiltration membrane filtration and nanofiltration membrane filtration in a purifying process, thus guaranteeing the product quality. The strain and the preparation method are suitable for large-scale industrial production.
Owner:淮北新旗氨基酸有限公司

Method for increasing hybridization seed setting rate of morning glory

The invention relates to a plant breeding method, and especially relates to a method for increasing hybridization seed setting rate of morning glory, which belongs to the technical field of plant breeding. The method for preparing cenospecies of morning glory has the following advantages that appropriate sowing time and illumination treatment enable consistent florescence of a male parent and a female parent, the plant have optimum growth state and most appropriate fructification temperature while being pollinated, bud treatment before pollination is convenient and fast, and pistil stigma of the female parent is not injured; stamen pollen drying treatment before pollination is capable of increasing pollen-spreading degree and increasing the pollen vitality; and the female parent plant shading treatment after pollination is in favor of increasing the fructification percentage after pollination.
Owner:南京利华农业科技有限公司

Intelligent greenhouse agricultural growth monitoring device

The invention, which relates to the agricultural growth monitoring system, discloses an intelligent greenhouse agricultural growth monitoring device comprising a plant ecological sensing system, a meteorological environment sensing system, and an equipment control system. The plant ecological sensing system and the meteorological environment sensing system transmit data collected respectively to an upper computer; and the upper computer controls turning on or off of the equipment control system. The plant ecological sensing system consists of a plant stem flow meter, a tree radial growth monitor, a chlorophyll content measuring sensor, a leaf thickness sensor, and a fruit expanding sensor; and the meteorological environment sensing system includes an air temperature sensor, an air humidity sensor, a soil temperature sensor, a soil humidity sensor, a carbon dioxide sensor, an in-greenhouse illumination sensor, an out-greenhouse illumination sensor, an out-greenhouse rain sensor, and an out-greenhouse wind direction and wind speed sensor. Therefore, the optimum growth environment and state of the plant can be guaranteed; the production cost can be saved; and the production energy consumption can be reduced.
Owner:XUZHOU COLLEGE OF INDAL TECH

Phosphate solubilizing bacterium and extraction method thereof

The invention discloses a phosphate solubilizing bacterium and an extraction method thereof. The phosphate solubilizing bacterium is named a strain B5, the strain B5 is a pseudomonas bacterium, determination results of biochemical criterion are gram staining is negative, a methyl red test is negative, a V-P reaction is negative, an indole test is negative, an oxidase test is negative, the strain B5 can use citrate as a carbon source to produce extracellular enzyme-gelatinase liquidation gelatin, catalase and indole are produced, and H2S is generated; the order of the phosphate solubilizing ability of the strain B5 from high to low under different carbon sources is that glucose is greater than galactose, the galactose is greater than lactose, the lactose is greater than sucrose, and the sucrose is greater than soluble phosphate starch, and the order of the phosphate solubilizing ability under different nitrogen sources is that ammonium sulfate is greater than ammonium chloride, the ammonium chloride is greater than urea, and the urea is greater than potassium nitrate; and the optimum growth temperature of the strain B5 is 28-32 DEG C, and the optimum growth pH of the strain B5 is 7-9.
Owner:SHANGHAI JIAO TONG UNIV

Biological bactericide for preventing and controlling SRB (sulfate reducing bacteria) in high-temperature water body and SRB inhibition method of bactericide

The invention relates to a technology for inhibiting SRB (sulfate reducing bacteria) in oilfield produced liquid, in particular to a biological bactericide for preventing and controlling the SRB in a high-temperature water body and an SRB inhibition method of the bactericide. The biological bactericide is JSHD-4 geobacillustoebii, has a sequence as shown in a sequence table SEQ ID NO:1, is collected in China General Microbiological Culture Collection Center (CCMCC) on March 5, 2013, and has a Latin literature name of Geobacillustoebii and a collection number of CGMCCNO7273. The JSHD-4 geobacillustoebii is subjected to microbial aerobic fermentation to prepare industrial fermentation liquid with the bacterial solution concentration of 1.0*10<6> to 1.3*10<10> cfu / mL, the tolerable temperature is 50-95 DEG C, and the optimal growth temperature is 60-70 DEG C. After the multifunctional biological bactericide prepared from the JSHD-4 geobacillustoebii is thrown into a well, nitrate reducing bacteria (DNB) are quickly proliferated in the high-temperature environment in the well, so that the biological bactericide is suitable for directly treating the SRB in the high-temperature environment in the well on line.
Owner:CHINA PETROLEUM & CHEM CORP +1

Production-line type plant factory implementation method based on plant growth characteristics and rhythm

The invention relates to a production-line type plant factory implementation method based on plant growth characteristics and rhythm. The implementation method comprises the following steps: S01, obtaining parameters of growth characteristics and rhythm for a plant; S02, providing a greenhouse environment control system; S03, setting up a control program of the greenhouse environment control system according to the parameters; S04, running the greenhouse environment control system according to the set control program until the plant cultivation is finished, wherein one kind of plant corresponds to a control program; the greenhouse environment control system with the corresponding control program is a plant production line. The production-line type plant factory implementation method provides an expandable plant growth method, simulates the best growth environment of the plant in the whole growth process, and produces high-quality, high-quantity and short-period products with the lowest investment and the lowest power consumption. The implementation method is high in economic benefits, easy in large-scale and industrial promotion, low in cost, and high in efficiency.
Owner:FUJIAN AGRI & FORESTRY UNIV

Measurement and control system and method for growth environment of edible mushrooms

The invention relates to the technical field of measurement and control of growth environment of edible mushrooms, in particular to a measurement and control system and a method for the growth environment of edible mushrooms. The system comprises a testing system and an information acquisition system. The testing system is in network connection with an automatic control system through a data processing system. The information acquisition system is in network connection with the automatic control system through a transmission system. The automatic control system is in network connection with anexecution system. The automatic control system is in network connection with a client through a cloud server. According to the measurement and control system and the method for the growth environmentof the edible mushrooms, an online real-time control and management of the system is realized through the cooperation of the information acquisition system, the automatic control system and the execution system; an analysis can be carried out to obtain the current optimal growth environment parameter according to different growth stages factors, growth environment factors and external environmentfactors of the mushrooms, and an automatic regulation can be carried out; and a real-time measurement and control and a visualization operation can be implemented, the yield and quality of an ediblemushrooms factory production can be improved.
Owner:YANCHENG AIFEIER MUSHROOM EQUIP TECH

Linkage device combined with carbon dioxide and rich-oxygen removing generator for family, pig shed and vegetable shed

A linkage device combined with a carbon dioxide and rich-oxygen removing generator for a family, a pig shed and a vegetable shed also can be combined with a living room or an activity room of people. The air odor, harmful gas in the air, NOx gas, toxic gas and dust particle are removed by the ozone water, more importantly, the viruses and bacteria are killed, oxygen is resolved from the ozone, and the non-toxic, sterile, dustfree and clean air rich in carbon dioxide and oxygen is transported in the vegetable shed, therefore the plants grow quickly and the photosynthesis, respiration and metabolism are all strong by adopting the greenhouse simulated illumination, temperature, humidity, fertilizer component and amount suitable for optimum growth conditions of the plants with excellent air input, the carbon dioxide is consumed in the photosynthesis, the oxygen is increased, the air with residual carbon dioxide and rich oxygen is led from the vegetable shed and input to the carbon dioxide-removing, disinfecting and dust-removing ozone water and the oversaturated calcium oxide (calcium hydroxide) fluid, the dust-removing, disinfecting, carbon dioxide-removing and clean rich-oxygen air is transported to the animal shed for respiration of the animals, so as to lead the respiration and metabolism of the animals to be strong, the oxygen content in the blood to be high and immunity to be strong. The pig manure and urine are used as organic fertilizer for the plants and calcium bicarbonate is obtained in the carbon dioxide-removing process.
Owner:蔡海德

Device and method capable of controlling redox reduction potential to promote sludge dry method anaerobic fermentation

ActiveCN104326636AEasy loadingLarge capacity per unit volumeBiological sludge treatmentFiberLow voltage
The invention relates to a device capable of controlling redox reduction potential to promote sludge dry method anaerobic fermentation, the device can control the redox reduction potential to promote sludge dry method anaerobic fermentation, mainly comprises a fermentation tank, a stirrer, a motor, an anode, a cathode, a low-voltage direct current power supply, a wires and a carbon fiber conductive material, and is characterized in that: the stirrer is located horizontally in the axis of the fermentation tank, an axial stirring rod is sleeved and connected with the anode, the cathode is located on the wall of the fermentation tank, the carbon fiber conductive material is paved on the inner wall of the fermentation tank body, the low-voltage direct current power supply is arranged outside the fermentation tank body, and the anode and the cathode are connected through two wires. In order to improve the methane yield of sludge dry anaerobic fermentation, the redox reduction potential of the inner wall of the fermentation tank body can be controlled at -400mV by passing the additional direct current power supply through the carbon fiber conductive material so as to provide optimum growth redox environment for methane producing bacteria to achieve the object of methane producing bacteria enrichment and methane yield improvement. The solid content of the dry method fermented sludge is 10 ~ 20%.
Owner:TONGJI UNIV

Intelligent cloud water culture control system

The invention discloses an intelligent cloud water culture control system, which comprises a glasshouse provided with a water culture device, an information acquisition module for acquiring various data of the water culture device and the glasshouse, a function module for enabling the water culture device and the glasshouse to provide the best growth environment needed by plant growth, an automatic control system, a cloud server, a remote terminal, and a wireless communication network. The system of the invention is different from the traditional soil culture, problems of the soil structure, the fertility, accumulated harmful residues and frequent diseases and pests derivative from the coil culture can be solved, the plant growth period can be shortened, the soil space utilization rate is maximized while the plant yield and the quality are improved, the unattended and remote monitoring work can be realized, and a large amount of human resources is saved.
Owner:广东地粮科技有限公司

Intelligent plant growth environment adjusting system and method based on internet-of-things cloud platform

The invention provides an intelligent plant growth environment adjusting system and method based on an internet-of-things cloud platform, and relates to the field of agriculture. A server is used for primarily selecting multiple groups of good first growth environment parameters according to a genetic neural network training model, plant varieties, plant growth pre-periods, multiple groups of first growth environment parameter training samples and the plant photosynthetic rate corresponding to each group of first growth environment parameter training samples; the optimal first growth environment parameter is selected according to a target value optimization algorithm model; the control difference between the current first growth environment parameter and the optimal first growth environment parameter is calculated, finally a control signal is sent to a first environment parameter adjusting mechanism, the first environment parameter adjusting mechanism runs after receiving the control signal so that the current first growth environment parameter can be updated to the optimal first growth environment parameter, the matching degree of an adjusted plant growth environment and the optimal growth environment required by plants is high, and the adjusted plant growth environment is the optimal environment for plant growth.
Owner:武汉境土天空农场生态科技有限公司

Low temperature protease production strain, low temperature protease produced by the same and gene of enzyme

The invention relates to a low temperature protease production strain, low temperature protease produced by the same and a gene of the enzyme. A strain of planococcussp. producing low temperature protease is separated from the southern Indian Ocean deep-sea sediment for the first time, the preservation number of the strain is CGMCC No.8088, the optimum growth temperature and the optimum enzyme production temperature are both 20DEG C, and the fermentation level protease yield can reach 280U / mL. The optimum operation temperature of the protease produced by the strain is 30-37DEG C, the optimum pH is 7.5-9.0, under the condition of 30DEG C, over 80% of the highest catalytic activity can be maintained, and in the range of 20-25DEG C, the protease still has high catalytic activity. The protease produced by the strain belongs to typical low temperature alkaline protease and has good catalytic activity at normal temperature, thus having high research value in food processing industry, cold water detergent development and other aspects.
Owner:TIANJIN UNIV OF SCI & TECH

Streptomyces albus and application thereof

The invention relates to a streptomyces albus Ls2 for producing epsilon-poly L-lysine. The preservation number of the streptomyces albus Ls2 is CGMCC NO.8472; a colony formed by propagating and growing single cells on a Gao shi No.1 solid culture medium is white, filiform, dried on the edge and recessed in the center; microscopic examination shows that the cell is bacilliform without obstruction, is 1.0-3.0mm long; the streptomyces albus Ls2 is gram-negative; the streptomyces albus Ls2 can grow at the temperature of 20-40 DEG C, and the optimum growth temperature is 28-30 DEG C; a growth pH range is 3.0-9.5, and the optimum growth pH is 6.8-7.2; the streptomyces albus Ls2 is of oxybiontic growth; orange red precipitations are generated through a bismuth potassium iodide experiment, and orange precipitations are generated through a methyl orange experiment. The invention also relates to application of the streptomyces albus Ls2 in preparation of the epsilon-poly L-lysine.
Owner:BEIJING UNIV OF CHEM TECH

Intelligent plant growth environment adjusting device and method based on internet-of-things cloud platform

The invention provides an intelligent plant growth environment adjusting device and method based on an internet-of-things cloud platform, and relates to the field of agriculture. Multiple groups of good first growth environment parameters are primarily selected according to a genetic neural network training model, plant varieties, plant growth pre-periods, multiple groups of first growth environment parameter training samples and the plant photosynthetic rate corresponding to each group of first growth environment parameter training samples; the optimal first growth environment parameter is selected according to a target value optimization algorithm model; the control difference between the current first growth environment parameter and the optimal first growth environment parameter is calculated, finally a control signal is sent to a first environment parameter adjusting mechanism, the first environment parameter adjusting mechanism runs after receiving the control signal so that the current first growth environment parameter can be updated to the optimal first growth environment parameter, the matching degree of an adjusted plant growth environment and the optimal growth environment required by plants is high, and the adjusted plant growth environment is the optimal environment for plant growth.
Owner:河南睿敏科技有限公司

Optimization method of molecular beam epitaxy growth AlInAsSb superlattice material

The invention discloses an optimization method of a molecular beam epitaxy growth short wave infrared AlInAsSb superlattice; the method comprises the following steps of determining the source furnacetemperature and the corresponding beam current values of three-group elements in AlInAsSb, and the corresponding beam flow values of five-group elements and the reference temperature Tc of the epitaxial growth of the molecular beams, and defining the beam-flow value ratios of the five-group elements to the three-group elements as Sb / Al and As / In; setting the value of the Sb / Al to be a fixed valueA, and setting the value of the As / In as a variable value x, and analyzing and determining the optimal value xi of the As / In by comparing the Xrd graph of different x values; similarly, setting the value of the As / In to be the optimal value xi, and setting the value of the Sb / Al as a variable value y, and analyzing and determining the optimal value yi of the Sb / Al by comparing the Xrd graph of different y values; and adjusting the growth temperature of the AlInAsSb superlattice on a GaSb substrate by using a step length of 15 DEG C according to the reference temperature Tc, and determining theoptimal growth temperature according to the surface roughness of the AFM graph. By means of the optimization method, the AlInAsSb material with high material quality can be obtained, and the method is simple and efficient.
Owner:YUNNAN NORMAL UNIV
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