1068 results about "Green algae" patented technology

A process of obtaining lutein in a high yield from green algae is described. Lutein and lutein-enriched products obtained by the process, which are suitable for use as dietary supplements and/or food additives, or cosmetic or pharmaceutical raw materials, are also described.

The invention discloses a method for forecasting blue-green algae water bloom in a large-scale shallow lake within 72 hours. The method comprises the following steps of: building a content forecasting model of chlorophyll a in a water body and a probability forecasting model of water bloom generation according to an in-situ growth rate and drift rate parameters of blue-green algae; analyzing instant content of the chlorophyll a in a monitoring water area; distributing and acquiring meteorological information data in a monitoring period; inputting the built models; and outputting a predicted value of the concentration of the chlorophyll a in the monitoring water area in the next 72 hours and the water area and the probability of water bloom generation. The method disclosed by the invention has the advantages of strong operability, easily acquired parameters used for forecasting and high timeliness, and can be used for rapidly and accurately predicting breakout of the blue-green algae water bloom and forecasting the blue-green algae water bloom in a waterhead site and a vital landscape water area.

The invention discloses a preparation method of a functional organic fertilizer for soil restoration. The method comprises the following steps: mixing crushed straws with blue-green algae according to the mass ratio of (1-5):10 to obtain a mixture, and then adding a biomass-transformed complex microbial inoculant and a biomass-transformed inductive material to the mixture; evenly mixing and then carrying out conventional stacking fermentation for 5-15 days, so as to obtain a semi-solid organic fertilizer; and mixing and pelletizing the semi-solid organic fertilizer, clay, biomass carbon ash and a heavy metal ion chelating agent according to the ratio of 1000:(50-200):(50-150):(1-5), so as to obtain the functional organic fertilizer for soil restoration. The organic fertilizer disclosed by the invention has a persistent slow-release fertilizer effect, and can adsorb, chelate and immobilize the heavy metal ions in a deactivation manner, soil fleeciness is facilitated, the moisture retention and the breathability are improved, rooting of plants is facilitated, formation of beneficial components of soil microelements and the like is optimized, the heavy metal-polluted soil is effectively restored, and secondary pollution of the soil is not caused.

This invention relates to a method and composition for enhancing epidermal and/or hair follicle stem cell production, cell renewal, and/or growth of the skin, hair and nails, by topical administration of a therapeutic dosage of cyanobacteria and green algae and/or both simultaneous enteral and topical administration of a therapeutic dosage of cyanobacteria and green algae.

There is provided a method of separating free-astaxanthin selectively from green algae and, more particularly, to a method of separating free-astaxanthin selectively from Haematococcus pluvialis, the method comprising: mixing a cell culture containing Haematococcus pluvialis with an alkanic solvent and stirring, thereby obtaining an alkanic solvent extract containing astaxanthin material including free-astaxanthin and astaxanthin ester (step 1); and mixing the alkanic solvent extract with an alcohol and stirring, thereby obtaining an alcoholic extract containing free-astaxanthin (step 2). The present invention can not only maximize the efficiency of separating astaxanthin in high concentration by providing a very simple process technique capable of recovering free-astaxanthin selectively from H. pluvialis culture with high efficiency, but also realize the economical and simple operation of the process of separating free-astaxanthin by repeatedly using an alkanic solvent as a mediating solvent for extracting free-astaxanthin. Such a separation method can be used in extracting and separating a carotinoid analogue containing astaxanthin from a useful microalgae culture in addition to Haematococcus species.

Methods and compositions are disclosed to engineer plastids comprising heterologous genes encoding immuno-activating domains fused to an extracellular domain (ECD) of a receptor or surface glycoprotein, a growth factor or an enzyme and produced within a subcellular organelle, such as a chloroplast. The immuno-activating domains may include those regions of a protein capable of modulating the interaction between immune effector cells via proteins containing stereoselective binding domains and specific ligands, such as the Fc regions of antibodies. The present disclosure also demonstrates the utility of plants, including green algae, for the production of complex multi-domain fusion proteins as soluble bioactive therapeutic agents.

A method of ecological restoration of water bodies containing excess nutrient includes steps of: (a) taming Daphnia magna to be able to eat blue-green algae as an algae eating plankton with a taming composition fermented from spirulina powder, active yeast, and saccharide, so as to digest blue-green algae in the water bodies, and (b) putting the algae eating plankton in the water body polluted by the blue-green algae, wherein the algae eating plankton eats the blue-green algae, so that an eco-system of the water body containing excess nutrient can be restored. The method according to a preferred embodiment further includes a step of: (c) planting submerged plant in the water, wherein the submerged plant includes submerged forest and submerged turf.

The invention discloses a compound microbiological preparation and a preparation method for controlling the excessive reproduction of blue-green algae. The preparation comprises the following compounds with a certain weight proportion of microbial agents, organic fermentation agents, brown sugar and micro elements. The preparation steps are as follows: A. the preparation of the microbial agent, B. the preparation of the organic fermentation agent, and then the microbial agent\ fermentation agent, brown sugar and the micro elements are mixed based on a certain weight proportion, and finally, the compound microbiological preparation can be prepared. The preparation has reasonable formulation, is convenient to be used, has no pollution to the water, has high control rate and low cost, and is easy and convenient to be operated.

The invention relates to a microbial fuel cell, in particular to a green algae biological fuel cell generating power on the basis of photosynthesis, which comprises a transparent cathode cell of green algae culture solution and an anode cell containing rich oxygen or oxidant solution, wherein the cathode cell and the anode cell are isolated by a proton exchange membrane; the cathode and anode of the cell are fixed in the cathode cell and the anode cell respectively; the cathode cell is isolated from the air to create an anaerobic environment in the cathode cell, hydrogen-generating green algae is used a system green algae material, an indirect-process hydrogen generation regulating technique is adopted, an electronic transfer mediator is added into the system to enable electrons which aregenerated by photosynthesis to be combined with the electronic mediator through an electron transport chain before reaching hydrogenase, the electronic mediator releases electrons at a cathode electrode, and the electrons are transferred to the anode to combine with protons passing through the proton exchange membrane and oxidant in the cathode cell to form water. In the invention, optical energycan be converted into electric energy by coupling the photosynthesis of microalgae and a cell system, and a novel biological fuel cell is provided.

The invention discloses an acidizing fluid for green algae and a disease infected cell in porphyra haitanensis cultivation and a treating method thereof. A solvent for the acidizing fluid is clean seawater, and solute for the acidizing fluid is at least one of hydrochloric acid and citric acid, wherein the concentration expressed in percentage by weight of the solute in the acidizing fluid is 0.3 to 1.5 percent. The green algae and the disease infected cell can be quickly killed by a treating method of preparing the acidizing fluid, shipping, dipping for 15 to 20 seconds and rinsing, killing effect is better, the killing rate is over 90 percent, and the influence on the growth of the porphyra haitanensis is less. The treating method has the advantages of no restriction of natural condition, labor intensity reduction and the like.

The invention discloses a lake water body blue-green algae abundance estimation method based on remote sensing. The method comprises the following steps: carrying out high-spectrum remote sensing measurement on a lake water body by utilizing the concentration ratio of phycocyanin and chlorophyll to represent the blue-green algae abundance, selecting the ratio of remote sensing reflective rates of the two specific wave lengths and a function thereof as characteristics of blue-green algae, establishing an estimation model of the lake water body blue-green algae abundance, and estimating the lake water body blue-green algae abundance based on remote sensing. The method provided by the invention adopts a surface feature spectrograph or an onboard high-spectrum imager to carry out high-spectrum remote sensing on the lake water body, and the remote sensing reflective rate required for estimation can be obtained through performing radiation correction and atmospheric correction on aviation satellite high-spectrum data. The method provided by the invention has the advantages that the accuracy is high, the model is simple, the remote sensing reflective rates of the two wave lengths are selected, not only can the estimation on the water body blue-green algae abundance measured by the surface feature spectrograph be realized, but also the estimation on the blue-green algae abundance by virtue of aviation high-spectrum remote-sensing images is realized.

The invention relates to a method for filtering and separating suspended maters from water and a filtering device used in the method. According to the concrete technology, a filter screen of the filtering device is directly arranged in water flow in a water flow channel; the included angle a is formed between the filtering surface of the filter screen and the water flow direction of the surface of the filtering surface, wherein the included angle a can be an acute angle between 0 and 70 DEG or an obtuse angle between 110 DEG C and180 DEG; and the filter screen of the device and different water flow channels form different cross flow filtering systems. The method and device provided by the invention can be widely applied to lake blue-green algae, sewer liquid dung, sewage treatment plants and vegetable drug extraction.

The invention discloses a method for treating aquaculture wastewater. The method comprises the following steps of: performing modular processing on wastewater by using microalgae and beneficial bacteria; and throwing snails, filter-feeding fishes and other aquatic animals into a water body to realize self-purification of an aquaculture water environment after the modular processing. Dominant and beneficial microalgae such as diatom, green algae and the like capable of absorbing nitrogen and phosphor in the aquaculture water body are screened out, inoculated, rapidly cultured and put into the aquaculture water body; the water color is regulated and the alga concentration is controlled by the methods of rational fertilization and rotifer inoculation; the beneficial bacteria are bacillus and photosynthetic bacteria capable of degrading organic matters and ammonia nitrogen in the water body; the beneficial bacteria and feed are proportionally mixed before the feed is put into the water body; after the feed is put into the water body, an underwater biomembrane taking the feed as a matrix is formed; the nitrogen, the phosphor and other harmful pollutants in the aquaculture water body can be effectively removed by jointly using the microalgae and the beneficial bacteria; simultaneously, the utilization efficiency of the feed can be improved by mixing the beneficial bacteria and the feed; and the water body is processed by using the microalgae and the beneficial bacteria, and then the snails and the filter-feeding fishes are put into the water body to prevent excessive multiplication of phycomycete, so that the self-purification of the aquaculture water environment can be realized.

The invention belongs to technical field of environmental-friendly water treatment and relates to an MC-LR (microcystin-LR) degrading strain screened from bottom sediments of streamsides with high blue-green algae pollution in the Taihu Lake and a method for degrading microcystins by the same. Currently, the strain is preserved in the China general microbiological culture collection center (CGMCC) and has a preservation number of CGMCC NO.4498. By identification, the strain is bacillus (bacillussp.). The method for degrading the microcystins by the MC-LR degrading strain comprises the following steps of: inoculating the MC-LR degrading strain into an inorganic salt culture medium which uses the MC-LR as the only carbon source and nitrogen source and has a pH value of 5 to 9 according to an inoculation rate of 2 to 10 mass percent; and cultivating the MC-LR degrading strain for 48 hours in a shaking table at a temperature of 30 DEG C under a rotating speed of 100 to 180 r/min so as to degrade the MC-LR. The stain is screened from a water body of the Taihu Lake, is suitable for the natural environment of the Taihu watershed and has wide application prospect for removing the MC-LR in the water body of the Taihu watershed by a biological method.

The invention belongs to the technical field of environmental protection, and particularly relates to a method and a device for stream guidance and enrichment of blue-green algae in a large water area. With the adoption of the method and the device for the stream guidance and the enrichment of the blue-green algae in the large water area, a certain area which is in shore, and in which the guiding wind is in the downwind direction in the large water area is selected as a blue-green algae stream guidance and enrichment area; a blue-green algae stream guidance and enrichment device is established by utilizing an arched soft algae blocking enclosure and a stream guiding door of which the two sides are in shore; large-scale blue-green algae from outside is guided and gathered to the two sides of the shore by utilizing the arched soft algae blocking enclosure; and the blue-green algae is guided into the enrichment area by utilizing timely opening and closing of the stream guidance door, or the enriched blue-green algae is prevented from blowing and escaping with wind; wind waves in the enrichment area can be reduced by the blue-green algae stream guidance enrichment device, so that the blue-green algae in the enrichment area can always float onto the water surface, and is conveniently to be absorbed and cleared continuously; and in addition, a blue-green algae stream guiding enrichment trap and an efficient algae absorbing area are constructed at one side close to the bottom shore in the blue-green algae stream guidance and enrichment area by utilizing vantage ground, so that the blue-green algae in the enrichment area is further enriched for second time to the area, and is conveniently efficiently absorbed and cleared.

A method for preventing skin-cellular aging by using a green algae extract and a cosmetic composition containing the green algae extract are disclosed. An effective dose of the green algae extract is used to inhibit the activity of Metalloproteinase (MMP) in the fibroblast and to promote of collagens and elastins production in the fibroblast. The green algae extract can be mixed with a skin permeable cosmetic composition so that the cosmetic composition performs the effect of preventing extrinsic skin aging.

The ecological water plankton regulating agent consists of gypsum powder 30-40 wt%, attapulgite powder 20-40 wt% and sodium humate 30-40 wt%. The method of utilizing the ecological water plankton regulating agent in controlling excessive propagation of blue-green algae in water is to dilute the ecological water plankton regulating agent with 10-20 times water to obtain suspension and spreading the suspension to the water, with the applied amount of the ecological water plankton regulating agent being 3-10 g/cu m. The said regulating agent and method can control the excessive propagation of blue-green algae, ensure the algae diversity, raise the transparency of water and lower the content of microcystin in water.