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30results about How to "Simplify the cultivation steps" patented technology

Immobilized nitrobacteria enrichment culture method and device in sewage treatment process

The invention discloses an immobilized nitrobacteria enrichment culture method and device in a sewage treatment process. A sequencing-batch biomembrane activated sludge process is utilized to perform enrichment culture on nitrobacteria: dewatered sludge is inoculated in an immobilized nitrobacteria culture device, and an enrichment culture solution is added; and in the nitrobacteria enrichment culture process, the biomembrane ammonia nitrogen load is gradually enhanced, and the pH value is controlled. The enrichment culture solution is formed by mixing NH4HCO3 and pretreated municipal sewage, the ammonia nitrogen concentrations are respectively 100, 300, 500, 700 and 1000 mg/L, and the COD (chemical oxygen demand) concentration is 30-60 mg/L. By controlling the immobilized nitrobacteria culture device, the DO in the reaction mixture is 2-6 mg/L, the pH value is 6.5-8.0, the biofilm-formation acclimatization culture temperature is 10-14 DEG C, and the enrichment purification culture temperature is 15-25 DEG C. The device can be used for culturing nitrobacteria at low temperature, and the nitrobacteria content is up to 40-45%. The immobilized nitrobacteria have high low-temperature nitration resistance, and can treat the wastewater of which the ammonia nitrogen concentration is up to 1000 mg/L, so that the ammonia nitrogen in the wastewater is lowered to 1.0 mg/L or below.
Owner:BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST

Rapid culture method for mixed culture denitrification desulphurization granule sludge

The invention relates to a rapid culture method for granule sludge and provides a rapid culture method for mixed culture denitrification desulphurization granule sludge. The rapid culture method provided by the invention overcomes the problems of a long period, high operation cost and poor effects of a mixed culture denitrification granule sludge process due to introduction of harmful microbes in culture of mixed culture denitrification desulphurization granule sludge in the prior art. According to the invention, since activated sludge is used as inoculation sludge and granulation of the sludge is directly realized under the condition of addition of sodium chloride, the tedious steps of culture of sulfate reduced granule sludge at first and domestication of the mixed culture denitrification desulphurization granule sludge next are omitted, culture time for the granule sludge is shortened, and operation cost is saved; moreover, usage of methane-producing sludge as the inoculation sludge and introduction of harmful microbes are prevented, and high-efficiency operation efficacy of the denitrification desulphurization granule sludge is guaranteed; meanwhile, elemental sulfur is recovered, and reclamation of wastes is realized.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Tissue culture device and betula luminifera micro cuttage and rapid propagation method

The invention relates to a tissue culture device, belonging to the field of biotechnology. The tissue culture device comprises a culture container main body and a cover, and is characterized in that a semi-solid culture medium is arranged in the lower part of the culture container main body, a stator is arranged on the upper surface of the semi-solid culture medium, and open pores are formed in the stator and used for cutting explants. The invention further provides a betula luminifera micro cuttage and rapid propagation method by combining the device. The method is simple in steps, the growing speed is high, and the occurrence of variation can be reduced. Through the method, in-vitro sterile culture can be realized, and a great amount of plants can be propagated with fewer explant materials within small range and limited culture time.
Owner:ZHEJIANG FORESTRY UNIVERSITY

Method for stereoscopic mist-spray cultivation of hydroponic flowers

The invention relates to the technical field of flower cultivation, in particular to a three-dimensional mist-spray hydroponic flower cultivation method. The purpose is to provide a method for cultivating flowers based on aerosol cultivation for rooting and adding an automatic control system on the basis of aerosol cultivation; including the following steps: (1) flower selection and cleaning; (2) flower root pruning; (3) (4) planting of flowers; (5) root-promoting treatment; (6) root growth of water roots; (7) bottling of hydroponic flowers; Less is an advantage of high survival rate, energy saving and low cost.
Owner:定西玉润农业科技有限公司

Method for quickly breeding cymbidium hybridium by use of root inducing protocorm

The invention discloses a method for quickly breeding cymbidium hybridium by use of root inducing protocorm. The improved MS culture medium containing special components (6-BA, PIC and casein hydrolysate) is used for inducing protocorm; for the root explant of cymbidium hybridium, the protocorm is induced by the root of cymbidium hybridium through a special cultivation method, wherein the induction rate reaches 100%; and after 45 days of cultivation, 50 protocorms of each root explant are obtained, the survival rate of the protocorm is 95%, and the plant grows well and directly roots.
Owner:SHANGHAI ACAD OF AGRI SCI

Harvesting method of selenium-enriched chlorella product via diatomite-based positively charged green flocculant

The invention provides a harvesting method of a selenium-enriched chlorella product via a diatomite-based positively charged green flocculant. The method is characterized by comprising the following steps: cultivating chlorella pyrenoidosa in a culture solution containing selenite, so that chlorella liquid undergoing selenium-enriched culture is obtained; and adding the diatomite-based positivelycharged green flocculant to the chlorella liquid undergoing selenium-enriched culture, standing by, discarding supernatant liquid and harvesting the selenium-enriched chlorella. According to the method, by harvesting and cultivating the selenium-enriched chlorella, the finished product that an organic selenium content reaches 73% or above can be obtained, and the method is simple in culture steps,low in cost and convenient to operate. In addition, the selenium-enriched chlorella product that the algae flocculant which is free from toxins and harm is adopted is simple in preparation method, green-going and free from pollution, and a chlorella harvesting rate can reach 90-97%. The method is applicable to large-scale production; and moreover, the obtained product is applicable to the fieldsof food health care and medicine, and a certain economic value is created.
Owner:DONGHUA UNIV

Organoid culture system and organoid culture method

PendingCN113755426ASimplify process costsSimplify training costsCompound screeningApoptosis detectionBiotechnologyIndividualized treatment
The invention belongs to the technical field of organoid and cell culture, and particularly relates to an organoid culture system, an organoid culture method, an organoid obtained based on the organoid culture system or culture method, an application of the organoid of the organoid culture system or the organoid culture method, and an application of the organoid. The organoid culture system or culture method provided by the invention realizes organoid culture by using cells derived from a cell line, can effectively simplify the culture process of the organoid, reduces the culture cost, is suitable for culture and application of organoid models of various tissues, and provides an important research and application platform for the fields of disease model construction, drug screening, drug toxicity testing, individualized treatment and the like.
Owner:COHERENT BIOPHARMA (SUZHOU) LTD

Method for breeding medicinal plant valeriana jatamansi jones by means of tissue culture

The invention discloses a method for breeding a medicinal plant valeriana jatamansi jones by means of tissue culture. The method includes steps of S1, selecting finely grown and robust wild valerianajatamansi jones, placing the wild valeriana jatamansi jones under tap water, flushing the wild valeriana jatamansi jones for more than 1 hour, then sufficiently immersing explants in 75% alcohol on anultraclean worktable in a sterile room, treating the explants for 30 s, flushing the explants by the aid of sterile water by 4-5 times, sufficiently soaking the explants in 0.1% mercury chloride solution for 10-15 min, repeatedly flushing the explants by the aid of sterile water by 5-6 times, then repeatedly shaking the explants to thoroughly clear mercury chloride, drying redundant moisture by the aid of sterile filter paper and then reserving the explants. The method for breeding the medicinal plant valeriana jatamansi jones by means of tissue culture has the advantages that the method includes simple culture steps and is easy to operate, and the medicinal plant valeriana jatamansi jones can be conveniently bred by staffs by means of tissue culture; callus tissues are induced and cultured, multiple experiments are compared to one another, accordingly, the optimal breeding conditions can be conveniently screened by users, and the requirements on industrially breeding the medicinal plant valeriana jatamansi jones by means of tissue culture can be met.
Owner:JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE

A kind of rooting method of medicinal plant antler grass tissue culture seedling outside the bottle

The invention belongs to the technical field of herbal medicinal plant tissue culture, and specifically relates to a method for rooting out of a bottle of velvet antler tissue cultured seedlings, which mainly solves the problems of long rooting period in a bottle of tissue cultured seedlings, induction of many aerial roots, and low survival rate of transplanting. The technical problem includes the following steps: (1) selection of bottle seedlings; (2) cultivation of strong seedlings; (3) hardening of seedlings; (4) transplanting of tissue culture seedlings; (5) post-planting management. The rooting technology of grass tissue culture seedlings outside the bottle optimizes its tissue culture and rapid propagation system. This technology does not need rooting in a bottle, and it is directly transplanted after hormone treatment. After two weeks, new roots can be seen from the base of the seedlings. After 30 days, the number of roots will reach 5-10, and the root length will be 0.5-1.5cm. It will take about 2 months. The robust rooted seedlings of pilose antler grass with a seedling height of about 6-10 cm were obtained. Compared with the traditional rooting in a bottle, the period of seedling cultivation is shortened by one month, and the survival rate of transplanting is higher than 85%. By adopting the technology of the invention, the quality of rooted seedlings is significantly improved, and industrial production can be carried out.
Owner:EXPERIMENTAL CENT OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY

Triploid crucian carp tail fin cell line 3nFC as well as construction method and application thereof

InactiveCN107641612ACorrect numberStable cell proliferationArtificial cell constructsVertebrate cellsBlood serumBiology
The invention discloses a triploid crucian carp tail fin cell line 3nFC which is deposited in China Center for Type Culture Collection, with preservation number CCTCC NO: C201732, the cell morphologyis typical fibroblast cells, the mode of chromosome number is as follows: 3n = 136, the number of chromosomes is correct, and cryopreservation and cell recovery can be carried out; and at the same time the cell line can be transfected and used for gene function studies, so that the foundation for immunology and virology studies for triploid crucian carp is laid, and a solid platform for n vitro studies of triploid crucian carp functional genes is laid. The invention also provides a construction method of the triploid crucian carp tail fin cell line 3nFC. In the method, during primary culture,small tail fin tissue blocks are soaked in fetal bovine serum before drying-sticking, and the soaking time is optimized, so that the small tail fin tissue can relatively well maintain the activity ofcells in the subsequent drying-sticking process after fully absorbing fetal bovine serum, and the emigration time required for the cells is greatly reduced.
Owner:HUNAN NORMAL UNIVERSITY

Ginger tissue culture method

The invention discloses a method for rapid propagation of ginger by tissue culture. The method is characterized by comprising the following steps of taking ginger stem tips to be pretreated, placing the pretreated ginger stem tips on a slow-release culture medium, inducing to generate cluster buds, adding an MS basal culture medium with NH4NO3 concentration halved into the slow-release culture medium, supplementing 0.5-1 mg / L of PP333, and continuously culturing to obtain rooted seedlings, wherein the slow-release culture medium is prepared by supplementing 0.5-1.5 mg / L of 6-BA, 2-3mg / L of NAA slow-release auxin, 0.25-0.3 mg / L of TDZ, 2% of cane sugar and 0.55-0.65% of agar into an MS basal culture medium, and the pH value is adjusted to 5.8-6. The tissue culture steps are simplified, the culture time is shortened, the survival rate and detoxification rate of bud seedlings are increased, the survival rate reaches 96%, the detoxification rate reaches 100%, meanwhile, variation in the ginger tissue culture process is prevented, the propagation coefficient is remarkably increased and reaches 5.13, the rooting rate reaches 97.7%, and robust ginger seedlings with roots are cultured.
Owner:重庆市幅沅农业生物技术研究院有限公司 +1

Culture medium for rapid propagation of dendrobium nobile seedlings and rapid propagation method thereof

The invention provides a culture medium for rapid propagation of dendrobium nobile seedlings and a rapid propagation method thereof, and belongs to the technical field of plant seedling cultivation. The culture medium for rapid propagation of dendrobium nobile seedlings is prepared from the following components in percentage by mass and volume concentration: 2.35 to 2.68 g / L of N6 basic culture medium, 1.0 to 1.5 mg / L of 6-BA, 0.3 to 0.5 mg / L of 2,4-D, 30 to 60g / L of potato juice, 130 to 160g / L of banana juice, 20 to 30g / L of cane sugar and 6 to 7g / L of agar, wherein the pH value of the culture medium is 5.6 to 5.8. When the culture medium for rapid propagation of the dendrobium nobile seedlings is used for culturing the dendrobium nobile seedlings, transferring is not needed, the seedlings are formed at a time, pollution caused by frequent transferring is avoided, the pollution rate is reduced, and the seedling culture cost is greatly saved.
Owner:NANJING AGRICULTURAL UNIVERSITY

Phalaenopsis tissue culture media and preparation methods thereof

The invention discloses phalaenopsis tissue culture media and preparation methods thereof. The phalaenopsis tissue culture media comprises an induction culture medium, a proliferation culture medium,a seedling strengthening culture medium and a rooting culture medium and the preparation methods comprise the preparation methods of the induction culture medium, the proliferation culture medium, theseedling strengthening culture medium and the rooting culture medium . The induction culture medium, the seedling strengthening culture medium and the rooting culture medium are obtained by adding biomass nutrients such as tomato juice, carrot puree, apple puree, banana puree and coconut juice and hormonal nutrients such as adenine, 6-benzylaminopurine and naphthalene acetic acid on the basis ofan MS medium according to nutritional and technical requirements in each culture stage. The phalaenopsis tissue culture media are applied to phalaenopsis tissue culture, have the advantages of less hormone consumption, rapid reproduction, large quantity, tidy seedling emergence, pure varieties, low cost and wide adaptability, and can improve the market competitiveness and promote development of the phalaenopsis industry.
Owner:内蒙古自治区生物技术研究院 +1

A kind of cultivation method of Arabidopsis strong seedling

The invention discloses a cultivating method of strong arabidopsis seedlings. The method includes the following steps that filter paper is put in a culture dish, after the filter paper is soaked in clean water, arabidopsis seeds are put on the filter paper, and the filter paper is put in a refrigerator to be vernalized for 2-4 days at the temperature of 3-4 DEG C; the vernalized arabidopsis seedsare sown in nutrition bowls with a seedling culture medium soaked in clean water with a toothpick; 5-6 arabidopsis seeds are sown in each nutrition bowl, the nutrition bowls are covered with preservative films, the nutrition bowls are put in a stainless steel iron pan, then the stainless steel iron pan is put in a culture container to be cultured for 15-20 days, then the preservative films are removed, culture continues for 5-7 days, 4 seedlings with good growth vigor are reserved, and the other seedlings are picked off. After sowing is completed, culture is carried out for 3-4 weeks under condition of the photoperiod of 10-hour illumination and 14-hour darkness, then culture continues under the condition of the photoperiod of 16-hour illumination and 8-hour darkness, and the strong arabidopsis seedlings are obtained. Common materials are adopted, the cultivating steps of arabidopsis are simplified, the cost is reduced, the time is shortened, and the strong seedling rate of the arabidopsis is increased.
Owner:NORTHWEST A & F UNIV +2

Method for quickly breeding cymbidium hybridium by use of root inducing protocorm

The invention discloses a method for quickly breeding cymbidium hybridium by use of root inducing protocorm. The improved MS culture medium containing special components (6-BA, PIC and casein hydrolysate) is used for inducing protocorm; for the root explant of cymbidium hybridium, the protocorm is induced by the root of cymbidium hybridium through a special cultivation method, wherein the induction rate reaches 100%; and after 45 days of cultivation, 50 protocorms of each root explant are obtained, the survival rate of the protocorm is 95%, and the plant grows well and directly roots.
Owner:SHANGHAI ACAD OF AGRI SCI

A rapid cultivation method of polyculture denitrification and desulfurization granular sludge

The invention relates to a rapid culture method for granule sludge and provides a rapid culture method for mixed culture denitrification desulphurization granule sludge. The rapid culture method provided by the invention overcomes the problems of a long period, high operation cost and poor effects of a mixed culture denitrification granule sludge process due to introduction of harmful microbes in culture of mixed culture denitrification desulphurization granule sludge in the prior art. According to the invention, since activated sludge is used as inoculation sludge and granulation of the sludge is directly realized under the condition of addition of sodium chloride, the tedious steps of culture of sulfate reduced granule sludge at first and domestication of the mixed culture denitrification desulphurization granule sludge next are omitted, culture time for the granule sludge is shortened, and operation cost is saved; moreover, usage of methane-producing sludge as the inoculation sludge and introduction of harmful microbes are prevented, and high-efficiency operation efficacy of the denitrification desulphurization granule sludge is guaranteed; meanwhile, elemental sulfur is recovered, and reclamation of wastes is realized.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method for simplifying saving of seedless grape embryo

The invention relates to a method for simplifying saving of a seedless grape embryo, which is achieved by saving an in vitro embryo of the seedless grape embryo and comprises the following steps: preparing a synthetic medium, selecting and sterilizing young fruit, carrying out isolated culturing on the ovule, embryo stripping and embryo culture; selecting seed abortion seedless grape young fruit 72 days after flower blooming, washing the young fruit and sterilizing the young fruit at a clean bench respectively by corrosive sublimate and alcohol and stripping the ovule under aseptic conditions; then, inoculating the young fruit on the synthetic medium for carrying out dark culture, wherein the pH value of culture medium is 5.8-6.2 and culture temperature is 25-30 DEG C; carrying out embryostripping treatment on the ovule after the ovule is cultured for 40-60 days; and continuing to inoculate the ovule to the synthetic medium and carrying out illumination culture on the ovule for 2000-4000LX. When the illumination culture is carried out on the ovule for 20-30 days, then embryo begins to germinate, a radicle gradually grows at the lower part of the embryo and two cotyledons gradually grown at the upper part of the embryo and finally the seedling is obtained. According to the method in the invention, a growth culture medium, a germination culture medium and a seedling formation culture medium are integrated into a whole and the saving of the seedless grape embryo is simplified and accelerated.
Owner:HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY

A kind of method and germination agent for promoting direct seeding germination of bletilla striata seeds

The invention belongs to the technical field of plant cultivation, and in particular relates to a medium capable of promoting direct-directed germination of bletilla striata seeds and direct-directed seedling growth, and an optimal selection and germination method of nutrients and environmental conditions. The medium selection of the present invention that can improve the direct seeding germination rate of bletilla striata seeds includes: sandy loam, fine sand, red jade soil; vermiculite, perlite; coconut bran, bacteria bag, dead leaf powder; cotton, cotton gauze. The selected germination nutrient solution components are: 1 / 4MS~MS nutrient solution, 0.5mg / L~2mg / L NAA, 0mg / L~1mg / L GA3, 10~30g / L sucrose. The germination temperature is selected to be 15-25°C, the relative humidity is 50-90%, the light intensity is 1000-3000 lx, and the light duration is 8-16 hours / day. The combination of the medium and the nutrient solution can effectively improve the direct seeding germination rate of bletilla striata seeds.
Owner:重庆市药物种植研究所

Gyokuro tissue medium and preparation method thereof

The invention discloses a gyokuro tissue medium and a preparation method thereof. The gyokuro tissue medium comprises an induction medium, a propagation medium, a seedling strengthening medium and a rooting medium. According to the induction medium, citric acid, 6-benayl aminopurine, naphthylacetic acid, 6-furfurylaminopurine, sugar and carrageenan are added on the basis of an MS medium. Accordingto the propagation medium, citric acid, sugar and carrageenan are added on the basis of a 1 / 2MS medium. According to the seedling strengthening medium, citric acid, mashed potatoes, mashed apples, mashed bananas, sugar and carrageenan are added on the basis of the 1 / 2MS medium. According to the rooting medium, citric acid, mashed potatoes, mashed apples, mashed bananas, indolebutyric acid, activecarbon, sugar and carrageenan are added on the basis of the 1 / 2MS medium. The gyokuro tissue medium is used for gyokuro tissue culture, and has the advantages that the use quantity of hormones is small, propagation is rapid, the number is large, emerged seedlings are orderly, the varieties are pure, the cost is low, and the application range is wide.
Owner:内蒙古自治区生物技术研究院 +1

Brain organoid model and preparation method and application thereof

The invention discloses a brain organoid model and a preparation method and application thereof, and the method comprises the following steps: obtaining pluripotent stem cells with boundary limitation and single-layer adherent growth, adding into an EB formation culture medium, and maintaining culture for 4-6 days; culturing for 2-6 days by adopting a nerve induction culture medium; and then absorbing and discarding the culture medium, coating with precooled Matrigel, curing, and sequentially replacing a neural differentiation culture medium for culturing for 3-5 days and inducing a mature culture medium for culturing for 10-30 days to obtain the brain organ-like model. According to the method, the brain organoid model is generated from single-layer cell culture for the first time, the organoid with a uniform form can be constructed in a high-throughput and one-step method, and the whole growth and development process of the organoid can be observed in situ.
Owner:合肥燃音生物科技有限公司
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