503 results about "Algal cells" patented technology

The invention provides algal biomass, algal oil, food compositions comprising microalgal biomass, whole microalgal cells, and / or microalgal oil in combination with one or more other edible ingredients, and methods of making such compositions by combining algal biomass or algal oil with other edible ingredients. In preferred embodiments, the microalgal components are derived from microalgal cultures grown and propagated heterotrophically in which the algal cells comprise at least 10% algal oil by dry weight.

The present invention provides a method for preparing high-effective algae flocculant from non-toxic, easy-to-bio-degrade, cheap, natural macromolecular polymer modified clay. Said modification can obviously raise flocculation algae-removing capability of different clay, the algae-removing rate of various clays can be 20-95% Said high-effective algae flocculant can be used for controlling and treating large area red tide, fresh water algal bloom, and also can be used for removing harmful algae in river and drinking water plant.

The invention relates to a method that could cultivate algae by PH feedback control to add CO2 that belongs to tiny algae cultivating field. The PH value of culture solution is set in a certain range, and according to the difference between the practical test vale of the PH value in the culture solution and the preset value, the CO2 would be added to make the PH value be in the certain range of the preset value. It would not be finished until the condition that could stop cultivating emerges. The invention realizes automatically adding carbon and automatically controlling PH value for algae cultivation.

A method for separating polar lipids from plant material, in particular, intact algal cells, using an amphipathic solvent set and a hydrophobic solvent set. Some embodiments include dewatering intact algal cells and then extracting polar lipids from the algal cells. The methods provide for single and multistep extraction processes which allow for efficient separation of algal polar lipids from a wet algal biomass while avoiding emulsification of extraction mixtures. These polar lipids are high value products which can be used as surfactants, detergents, and food additives. Neutral lipids remaining in the algal biomass after extraction of polar lipids can be used to generate renewable fuels.

The invention provides an image processing method and device. The method includes: acquiring a target image including algal cells; binarizing the target image to obtain a target gray image; extracting connected areas in the target gray image, and calculating area of each connected area; dividing preset algal area by the area of each connected area to obtain a quotient of each connected area; using a sum of the quotients of the connected areas, as the amount of the algal cells included in the target image. The algal cells intersecting together are not subjected to image splitting, thus, the number of the algal cells can be accurately counted, and accuracy of counting the algal cells is improved.

The invention provides a preparation method of a wave absorbing material with nickel nanoparticles wrapped with porous carbon-loaded graphene. The preparation method of the wave absorbing material with the nickel nanoparticles wrapped with the porous carbon-loaded graphene comprises the steps that alga are used as a carbon source and soaked in a nickel saline solution, and nickel ions are made to enter algal cells; low-temperature heat treatment is conducted on the alga after the alga are frozen and dried, so that the alga are converted into carbon, and metallic nickel slat is oxidized into nickel oxide; and then the temperature is increased to continue to conduct high-temperature heat treatment, so that the nickel oxide is reduced into nickel, the amorphous carbon wrapping the nickel nanoparticles is catalyzed and graphitized in the heat treatment process, and finally the composite material with the nickel nanoparticles wrapped with the porous carbon-loaded graphene is obtained. According to the preparation method of the wave absorbing material with the nickel nanoparticles wrapped with the porous carbon-loaded graphene, the alga are used as the carbon source, and thus the preparation method is economical and practical; nickel is evenly dispersed onto a carbon material by means of the characteristic that holes of natural algal plants are abundant; a porous carbon material of a network structure is obtained after heat treatment, the nickel particles wrapped with the graphene are dispersed on the surface of the porous carbon material, and thus the material has excellent micro-wave absorption performance.

The invention discloses a water-scavenger multifunctional environmental-friendly ship equipment and a method thereof, relating to a water-scavenger multifunctional environmental-friendly ship. The invention breaks fake vacuoles of blue-green algae cells by pressure so that blue-green algae loses necessary buoyancy so as to fast remove water-level blue-green algae and absorb the blue-green algae in kieselguhr organisms to be subsided to a lake bottom and absorbs nitrogen, phosphorus and organics contained in a lake to be automatically subsided to the lake bottom by a kieselguhr high-efficiency flocculant, so the purposes of fast lake water cleaning, denitrification and dephosphorization are achieved. The water-scavenger multifunctional environmental-friendly ship equipment has simple and compact structure, stable operation and high efficiency of blue-green removing at prows and denitrification and dephosphorization at sterns; the blue-green algae on a processed water body surface is obviously reduced; a water quality detection result shows that the invention can be used as an emergency measure when the blue-green algae is spread in large area; and in addition, a town lake water body repairing technology applying kieselguhr is a cheapest and most effective and efficient technology which has the best effect, fastest repair and effectiveness.