Resumen de: CN118127113A
The invention discloses a culture method for increasing all-trans astaxanthin of haematococcus pluvialis and application of the culture method, and belongs to the technical field of microalgae biology. According to the culture method, an SPD + NLS series culture mode is adopted, haematococcus pluvialis is subjected to green culture through a PE plate type photoreactor, growth of the haematococcus pluvialis is promoted by means of proper combination of red light and white light at the green low-density stage, in the later logarithmic growth stage, the illumination culture mode is switched from the white light to the red light, autotrophic growth of the haematococcus pluvialis is improved, and the growth rate of the haematococcus pluvialis is increased. And photoautotrophy can be realized by more effectively utilizing illumination in a microalgae culture process. In the astaxanthin accumulation stage, an open NLS full-spectrum natural light source is adopted, and the natural generation condition of the levogyration trans-type natural astaxanthin is restored to the maximum extent. The method is suitable for large-scale culture of haematococcus pluvialis in the middle and lower reaches of the Yangtze River with rich water resources, has the advantages of being short in period, high in all-trans astaxanthin content and the like, and has wide industrial application prospects.
Resumen de: CN118126805A
The microalgae gas purification equipment comprises a mounting workbench, and a gas conveying mechanism and a purification and flow division mechanism are arranged at the upper end of the mounting workbench; the sealing bottom cover is disassembled and assembled to be matched with the opening and closing infusion control seat for use, and a simple microalgae growth space structure is adopted, so that the cleaning effect after microalgae harvesting can be greatly improved; under the downward-pressing limiting action of the limiting telescopic rod, the collecting scraping frame and the illumination bracket are static relative to the air supplementing pipe, so that the scattering effect of the aggregation and the illumination effect of the illumination dark area of the aggregation in the microalgae growth process can be improved; the efficiency of biologically immobilizing a microbial conversion product and carbon dioxide generated by respiration in the microalgae growth process to synthesize algae biomass is improved; under the separation action of a permeable membrane mounted between a pressing frame plate and a separation matching block, the collection convenience of separation and extraction of the perishable waste exhaust gas in different purification stages is improved, and the quantitative analysis convenience of the perishable waste exhaust gas such as kitchen waste and the accuracy of an analysis result can be promoted.
Resumen de: CN118126832A
The invention belongs to the technical field of marine microalgae, and discloses a selenium-enriched culture method for marine microalgae. The method comprises the following steps: inoculating dunaliella salina into an artificial seawater culture medium containing Na2SeO3, and culturing to obtain the selenium-rich dunaliella salina with high selenocysteine and glutathione peroxidase. According to the method, the coupling of synchronous accumulation of the selenium-rich biomass and the important secondary metabolites is realized, the comprehensive utilization value of the dunaliella salina is further improved, and the obtained selenium-rich dunaliella salina has high selenocysteine and glutathione peroxidase. A microalgae biological germplasm resource library with selenium enrichment capacity is widened, and potential algae strains are provided for efficient and large-scale selenium enrichment culture and selenoprotein co-production.
Resumen de: CN118125623A
The invention discloses a method for reducing antibiotic resistance genes in swine wastewater by gibberellin-induced three-phase phycomycete symbiosis. The method comprises the following steps: S1, culturing microalgae; s2, culturing the endophytic bacteria of the microalgae to obtain endophytic bacteria S395-2; s3, culturing the fungi to obtain conidium helicosporidium; s4, co-culture of the microalgae and the endophytic bacteria; s5, establishment of a microalgae-endophytic bacteria-fungus symbiont; and S6, putting the microalgae-endophytic bacteria-fungus symbiont obtained in the step S5 into swine wastewater containing antibiotic resistance genes, adding gibberellin with a certain concentration into the wastewater, and then treating the swine wastewater. The method provided by the invention can effectively remove the antibiotic resistance gene in the pig raising wastewater.
Resumen de: CN118125622A
The invention discloses an application of filamentous microalgae in removal of enrofloxacin in a water body. The invention is a result obtained by finding that the Nostoc sp.SCAU-13 has an effect of removing enrofloxacin in a water body by the inventor of the invention. The algal strain can grow in a water body containing enrofloxacin and can efficiently remove enrofloxacin, so that the algal strain has the application potential in the aspect of removing antibiotics in sewage. The invention provides a biological treatment method of enrofloxacin, and the filamentous microalgae are easy to collect and separate from the water body, so that the subsequent treatment of the water body is simple.
Resumen de: CN118126802A
The invention discloses a multi-scale aeration column type photobiological reaction device which comprises a column type reactor, a micron bubble inlet and a millimeter bubble inlet are formed in the bottom of the column type reactor, the micron bubble inlet is used for introducing CO2 to improve the gas-liquid mass transfer efficiency and reduce the damage probability of microalgae, the millimeter bubble inlet is used for introducing air to reduce the damage probability of microalgae, and the millimeter bubble inlet is used for introducing air to reduce the damage probability of microalgae. Therefore, turbulence energy is enhanced, and vortex circulation is stabilized; the micron bubbles and the millimeter bubbles are mutually coordinated and promoted, so that the growth and carbon sequestration efficiency of the microalgae is effectively improved; a plurality of first baffles and a plurality of second baffles, the first baffles and the second baffles are arranged in the column type reactor in a crossed manner at preset intervals along the axial direction of the column type reactor, and are used for guiding bubbles to float upwards and forming vortex circulation so as to utilize a flash effect; secondly, the outer edge of the first baffle abuts against the inner wall of the column type reactor, and a through hole is formed in the first baffle; a gap is formed between the outer edge of the second baffle and the inner wall of the column type reactor; wherein the through holes
Resumen de: CN118126812A
The invention belongs to the technical field of microbial fermentation, and particularly relates to a fermentation system and application thereof in production of grease by co-culturing microalgae and yeast. According to the invention, the ceramic membrane with specific aperture and pressure tolerance is arranged in the channel between the two fermentation tanks, so that the fermentation system is provided, physical isolation can be formed when the fermentation system is used for co-culturing microalgae and yeast, exchange utilization of different fermentation metabolites is facilitated, and the utilization rate of the microalgae and the yeast is improved. Therefore, the biological yield of the yeast grease and the microalgae grease is improved. Experiments prove that by adopting the technical scheme provided by the invention, the biomass of the microalgae grease and the biomass of the yeast grease are improved, the step of separating the microalgae grease and the yeast grease is omitted, and rapid and effective separation of the two kinds of functional grease is realized.
Resumen de: CN221071440U
The utility model discloses a support-free microalgae culture system which comprises a culture pond and microalgae liquid, a floating top film is arranged in the culture pond, and the floating top film floats on the surface of the microalgae liquid and covers more than half of the area of the microalgae liquid level. According to the system, the covering top film is made to float by means of buoyancy of water instead of a support, so that wind prevention, dust prevention and convenient temperature control are achieved, and the building cost of the culture system is further reduced.
Resumen de: CN118116640A
The invention discloses a method for biologically treating nuclear pollution wastewater, and belongs to the field of environmental protection. The nuclear pollution wastewater is firstly pretreated and then subjected to two-stage treatment; in the first-stage treatment, emergent aquatic plants are adopted for adsorption; in the second-stage treatment, marine microalgae is adopted for adsorption. The traditional method has better tritium and C14 removal effect, but has the defects of complex equipment, troublesome operation, higher cost and secondary pollution. According to the method, the nuclear wastewater is treated by adopting the plants and the marine microalgae in a two-stage manner, equipment is simple, operation is convenient, the cost is low, and the pollutant removal rate is high.
Resumen de: CN118109301A
The invention belongs to the field of microorganisms (microalgae), and discloses an accumulation culture method for increasing the polysaccharide content of euglena gracilis, which comprises the following steps: carrying out amplification culture on euglena gracilis by using a culture medium, taking euglena gracilis growing to a logarithmic phase, and carrying out sterile inoculation according to the volume ratio of an algae solution to the culture medium of 1: 1, the algae liquid is cultured under the illumination condition, the culture temperature is 25-30 DEG C, the pH value of the culture medium is 6.5-8.5, the illumination intensity is set to be 4500 Lx, the illumination period is set to be 14 L: 10 D, and culture is conducted for 10 d; shaking the algae liquid at regular time for at least three times every day. According to the method, environmental factors and culture medium optimization are combined, so that the polysaccharide content is remarkably increased, the growth of the euglena, the total photosynthetic pigment content, the amino acid content and the grease yield are remarkably increased, the yield of the euglena and the yield of nutritional ingredients and active substances are increased, and therefore the production efficiency and economic benefits of the euglena are improved.
Resumen de: CN118117131A
The invention provides a mixed substrate microbial fuel cell, and belongs to the technical field of microbial fuel cells. The mixed substrate microbial fuel cell comprises an anode chamber and a cathode chamber, the anode is fixed in the anode chamber, and the cathode is fixed in the cathode chamber; the anode and the cathode are connected with an external resistor through a lead; the anode chamber and the cathode chamber are separated by a proton exchange membrane; the anode chamber is filled with a mixed substrate, and the mixed substrate is a lipid-rich biological waste, a seaweed dispersion liquid and anaerobic digestion sludge; and the cathode chamber is filled with a microalgae strain and a BBM culture medium. According to the mixed substrate microbial fuel cell, the lipid-rich biological waste, the seaweed and the anaerobic digestion sludge are digested together, a synergistic effect is achieved, the biological power generation capacity and stability of the microbial fuel cell can be improved, and the microalgae and the BBM culture medium in the cathode chamber provide biomass for generation of other biofuels.
Resumen de: CN118104828A
The invention provides strontium-enriched microalgae powder, and belongs to the technical field of health food. The invention provides a preparation method of strontium-rich microalgae powder, which comprises the following steps: (1) mixing a culture solution with Tian lake thermal spring water according to a volume ratio of (1-10): (5-10) to obtain a strontium-rich culture solution; (2) adjusting the pH value of the strontium-rich culture solution, and inoculating microalgae for culture; and (3) after the culture is finished, centrifugally collecting the microalgae in the culture solution, drying and crushing to obtain the strontium-enriched microalgae powder. According to the method, the Tian lake thermal spring water is used for culturing the microalgae, and the obtained microalgae can be used as a mineral water natural strontium-enriched carrier and can also be used for daily strontium supplement.
Resumen de: CN221051668U
The utility model discloses a bacteria-algae coupled water treatment system, which comprises a pretreatment area, an aerobic bacteria treatment area and a microalgae treatment area, the pretreatment area, the aerobic bacteria treatment area and the microalgae treatment area are communicated in sequence, and the microalgae treatment area is provided with an illumination lamp. According to the water treatment system disclosed by the utility model, after the water body is pretreated, the water body is sequentially treated by the aerobic bacteria treatment area and the microalgae treatment area, the aerobic bacteria generate carbon dioxide in the process of decomposing organic matters in the water body, the carbon dioxide is provided for the microalgae for photosynthesis, and the photosynthesis of the microalgae can provide oxygen for the aerobic bacteria. Therefore, a bacteria-algae coupled water treatment system is established, aeration is not needed, and nitrogen and phosphorus removal and COD (Chemical Oxygen Demand) can be efficiently carried out on a water body at low cost.
Resumen de: US2024173265A1
Provided are compositions containing extracellular vesicles from microalgae (MEVs) that are exogenously loaded with bioactive cargo or other cargo of interest, such as for therapeutic, industrial, diagnostic, and cosmetic uses. The MEVs have a variety of applications as therapeutics, including as vaccines, as anti-cancer therapeutics, as diagnostics, and other such uses.
Resumen de: WO2024110821A1
Process for the purification of produced water deriving from hydrocarbon extraction wells comprising the following steps: (a) growing the microalga Dunaliella salina in the presence of water with a salinity ranging from 20 g/L to 200 g/L, said salinity being the same as the one of said produced water, so as to obtain an inoculum; (b) introducing the inoculum obtained in said step (a) in a tank for the treatment of said produced water so as to obtain: (b1) an aqueous suspension of algal biomass; (b2) purified produced water. Said process makes it possible to obtain produced water deriving from hydrocarbon extraction wells, in particular produced water deriving from hydrocarbon extraction wells having a lower content of total petroleum hydrocarbons (TPH), which can be directly discharged into the environment without the need for further treatment or used for other purposes for example, re-injection into said wells for further hydrocarbon recovery known as "EOR"("Enhanced Oil Recovery"). In addition, said process makes it possible to obtain an increased algal biomass, thanks to the use of hydrocarbons in the produced water, which can advantageously be used for the production of bio-oil.
Resumen de: US2024174972A1
The invention is part of methods for separating microorganisms from their culture media and aims at solving the low efficiency and high environmental impact of processes for recovering oil-producing microalgae. For this purpose, the invention provides for the application of magnetic nanoparticles of bacterial origin (NMOBs) in processes for isolating microalgae from a cell culture or from a suspension of salt water or an effluent. NMOBs are particularly capable of recovering microalgae from hypersaline suspensions, favoring the use of marine microalgae in the production of oils with potential application in bio-oil and biofuel production processes. In addition to the use of NMOBs, the invention also provides for a process for recovering microalgae based on the addition of NMOBs to the microalgae suspension and subsequent application of external magnetic force.
Resumen de: WO2023001967A1
The present invention relates to a method of preparation of comprising microalgae, in particular Chlorella and products resulting thereof.
Resumen de: CA3226019A1
Provided are compositions containing extracellular vesicles from microalgae (MEVs) that are exogenously loaded with bioactive cargo or other cargo of interest, such as for therapeutic, industrial, diagnostic, and cosmetic uses. The MEVs have a variety of applications as therapeutics, including as vaccines, as anti-cancer therapeutics, as diagnostics, and other such uses.
Resumen de: CN118086061A
The invention relates to application of violaxanthin epoxidase analogues in increasing the content of fucoxanthin in microalgae, the microalgae with the increased content of fucoxanthin and a construction method of the microalgae. According to the invention, two VDL1 alleles are found through research, and the content of fucoxanthin in algae cells can be increased by overexpressing the two alleles in phaeodactylum tricornutum. Furthermore, overexpression of one allele enables the fucoxanthin content to be greatly increased compared with that of the other allele, the growth speed of the phaeodactylum tricornutum can be increased, and the final cell density of a culture of the phaeodactylum tricornutum is increased by 28.7% compared with that of wild phaeodactylum tricornutum. According to the invention, an engineered algal strain with higher growth speed and higher fucoxanthin content is obtained, and a material basis is provided for biosynthesis industrialization of fucoxanthin.
Resumen de: CN118086001A
The invention provides a preparation method of a CO2 trapping and carbon sequestration dry-state microalgae culture membrane bioreactor, which comprises the following steps: introducing a culture solution into a biological induction proliferation hollow fiber membrane to induce microalgae to form a membrane on the surface of the hollow fiber membrane, and filling the hollow fiber membrane reactor with gaseous CO2 as a carbon source; microalgae on the surface of the membrane are in direct contact with and absorbed by gas-phase CO2 and are subjected to biotransformation, so that the microalgae are promoted to be only implanted, expanded and propagated on the surface of the hollow fiber membrane. The medium in the dry-state membrane bioreactor is CO2, the light source directly irradiates the microalgae, blocking, refraction, absorption, reflection and the like of the water medium or the microalgae on light are avoided, and meanwhile, the negative effect on the growth of the microalgae due to the fact that CO2 gas is converted into HCO3 <-> and CO3 < 2-> acidizing culture solution systems after being in contact with the water solution is also avoided. Compared with traditional cultivation, the microalgae dry-state (water-free) cultivation device is high in operation stability and low in water demand, and the water demand is reduced by 80% or above.
Resumen de: CN221028406U
The utility model relates to the technical field of environmental microorganism monitoring and early warning, in particular to a microalgae collecting and sorting device in a deepwater reservoir area, which comprises a screen component I, a microscopic sight glass component II and a sorting component III, the top of the screen component I comprises a filter screen lifting rope 1, a rope ring 2 connected with the filter screen lifting rope 1 and a folding framework 3, and the filter screen lifting rope 1 is fixed by a hinge 4; the microscopic sight glass component II comprises a microscopic sight glass pipeline 5 and a supporting filter screen 6 and is connected with the spiral tube type sorting chip 7 of the sorting component III, a falling strip 8 is fixed on the outer side of the folding framework 3, and the top of the folding framework 3 penetrates out of a microscopic sight glass transmission line 9; the lowermost end of the screen component is connected with a sampling valve 10, is connected with an algae liquid sampling nozzle 12 mounted at the bottom through a filter membrane 11, and forms a water sample passing channel with a filter screen supporting ring 13, a light framework 14 and a rope ring 15 which are arranged at the top; and a microscope lens 16, a lighting element 17 and an underwater temperature sensor probe 18 are fixed at the bottom of the microscopic sight glass pipeline 5.
Resumen de: CN221027947U
The utility model relates to a culture wastewater advanced treatment system which comprises a secondary sedimentation tank, the secondary sedimentation tank is connected with a bacteria-algae symbiotic pond, a bacteria-algae symbiotic zone, a water distribution zone, a plant purification zone and a water outlet zone are arranged in the bacteria-algae symbiotic pond, mud-water separation is realized through the secondary sedimentation tank, and the bacteria-algae symbiotic zone, the water distribution zone, the plant purification zone and the water outlet zone are arranged in the bacteria-algae symbiotic pond. The algal-bacterial symbiosis area is filled with suspended filler and inoculated with microalgae, microorganisms in the culture wastewater are enriched on the surface of the suspended filler, organic matters in the culture wastewater are adsorbed and assimilated to be removed, and pollutants such as nitrogen and phosphorus in the culture wastewater are absorbed through the microalgae; an artificial floating island for planting high-tolerance plants is arranged in the plant purification area, pollutants such as organic matters and nitrogen and phosphorus in the breeding wastewater are further absorbed and degraded through the high-tolerance plants, and microalgae and the high-tolerance plants can be regularly harvested and utilized; therefore, chemicals do not need to be added, the production cost is reduced, and the green development of the livestock and poultry industr
Resumen de: CN118084549A
The invention discloses a microalgae-bacteria composite biological fertilizer capable of improving saline-alkali soil and a preparation method thereof. The microalgae-bacteria composite biological fertilizer comprises nitrogen-fixing herba houttuyniae, scenedesmus, sphingomonas and bacillus velezensis. The ratio of the nitrogen-fixing herba houttuyniae to the scenedesmus to the sphingomonas to the bacillus velezensis is (2-4): (2-4): 1: 1. According to the microalgae-bacteria composite biological fertilizer capable of improving the saline-alkali soil and the preparation method, due to mutualism between bacteria and algae, the screened bacteria and algae can improve the soil and enhance the improvement effect on the soil, specifically, the salinity and alkalinity of the soil are reduced, the nutrient content of the soil is increased, and the yield of the saline-alkali soil is increased. The growth of beneficial microorganisms in the soil is promoted and the enzyme activity of the soil is improved.
Resumen de: CN118086059A
The invention belongs to the technical field of microalgae biology, and discloses a method for improving oil yield and nitrogen absorption capacity of tribonema. The method comprises the following steps: inoculating tribonema into an mBG-11 liquid culture medium containing GABA (gamma-aminobutyric acid) and IAA (indoleacetic acid), and culturing to obtain the tribonema with high oil yield and high nitrogen absorption rate. According to the method disclosed by the invention, the synergistic accumulation of tribonema biomass and grease is promoted, so that the grease yield is improved to the maximum extent, and meanwhile, the positive influence of improving nitrogen absorption is also considered.
Nº publicación: CN118086058A 28/05/2024
Solicitante:
BAZHOU LVLING VOCATIONAL SKILLS TRAINING SCHOOL
BAZHOU LVLING ECOLOGICAL ENV ENGINEERING CO LTD
\u5DF4\u5DDE\u7EFF\u9886\u804C\u4E1A\u6280\u80FD\u57F9\u8BAD\u5B66\u6821,
\u5DF4\u5DDE\u7EFF\u9886\u751F\u6001\u73AF\u5883\u5DE5\u7A0B\u6709\u9650\u516C\u53F8
Resumen de: CN118086058A
The invention discloses a microalgae biological fertilizer capable of improving saline-alkali soil in situ and a preparation method. The microalgae biological fertilizer comprises anabaena nitrogen-fixing, scenedesmus, Chromococcus and a liquid culture medium for culturing microalgae. The ratio of the nitrogen-fixing anabaena to the scenedesmus to the Chromococcus is (1-5): (1-5): (1-5). According to the microalgae biological fertilizer capable of improving the saline-alkali soil in situ and the preparation method, the survival rate of microalgae in the soil can be increased, the onset time can be shortened, the content of soil organic matters and various nutrients and the enzyme activity of the soil can be improved, the saline-alkali soil can be improved, the use amount of chemical fertilizers can be reduced, and the microalgae biological fertilizer is environment-friendly.