44 results about "Algaenan" patented technology

The present invention describes a process for the production of ethanol by harvesting starch-accumulating filament-forming or colony-forming algae to form a biomass, initiating cellular decay of the biomass in a dark and anaerobic environment, fermenting the biomass in the presence of a yeast, and the isolating the ethanol produced. The present invention further relates to processing of the biomass remaining after ethanol production to recovering biodiesel starting materials and/or generation of heat and carbon dioxide via combustion.

The invention provides method and compositions to minimize the chlorophyll antenna size of photosynthesis by decreasing TLA1 gene expression, thereby improving solar conversion efficiencies and photosynthetic productivity in plants, e.g., green microalgae, under bright sunlight conditions.

A portable system and method for producing biofuel from algae are disclosed. In the portable system, a chemostat and a plug flow reactor formed from plastic bladders are interconnected. Further, an algae separator is in fluid communication with the plug flow reactor for removing algae cells. Also, the system includes a device for processing biofuel from the algae cells. Importantly, the system includes a temperature controller to maintain desired temperatures in the chemostat and plug flow reactor for algae growth and intracellular algae production. In order to further support algae cell growth, the system includes a device for capturing carbon dioxide and delivering the carbon dioxide to the chemostat.

Sustained hydrogen production is obtained by the culturing of a genetically-modified algae, where the ability of the chloroplasts to intake sulfate is reduced or eliminated compared to wild-type algae. The alga is cultured in a sealed environment in a liquid or solid medium that contains sulfur, and hydrogen is generated continuously. Alternatively, the algae may be cultured in the presence of bacteria that also produce hydrogen gas. The hydrogen produced can be collected and used as a clean energy source.

A system and method for processing algae cells to create biofuel are disclosed. Specifically, the system and method utilize steam to rupture algae cells in order to utilize intracellular oil therein. The system includes a conduit for growing algae cells and a generator for creating steam. Further, the system includes a lysing device that mixes the algae cells and the steam to rupture the algae cells. In order to maximize the efficiency of the lysing process, the system may further include a heat exchanger for preheating the algae cells with the lysed cells. In addition, the system includes a bioreactor to synthesize biofuel from the unbound oil.

Recombinant oleaginous alga that include one or more heterologous genes that increase the ability of the alga to use one or more natural saccharides such as cellulosic or hemicellulosic sugars for algal growth are described. The recombinant oleaginous algae are transformed to include one or more genes expressing sugar metabolizing enzymes or sugar transporting proteins, along with suitable control elements. Use of natural saccharides as a carbon source can allow the algae to produce biofuel precursors in a relatively efficient manner. Processes for preparing the alga, growing the alga, and extracting the biofuel precursors from the alga are also described.

Genetic mechanisms for mitigating the effects of introgression of a genetically engineered genetic trait of cultivated algae or cyanobacteria to its wild type or to an undesirable, interbreeding related species. as well as preventing the establishment of the transgenic algae or cyanobacteria in natural ecosystems.

The invention provides a co-culture method of micro-algae and photosynthetic bacteria, and the co-culture method belongs to the field of biotechnology. The co-culture method is characterized in that: the co-culture method adopts a translucent glass or plastic container as the container and adopts tap water for preparing a liquid culture medium, the liquid culture medium is composed of 0.2 to 1.0g/L of MgSO47H2O, 1.0 to 3.0g/L of NaHCO3, 0.01 to 0.02g/L of CaCl2, 1.0 to 3.0g/L of NH4Cl, 1.0 to 2.0g/L of KH2PO4, 1.0 to 5.0g/L of NaCl, 0.2 to 1.0g/L of yeast extract, 2.0 to 5.0g/L of sodium acetate and 1.0ml/L of trace element liquid. The micro-algae and the photosynthetic bacteria are co-cultured at the average temperature of larger than 20 DEG C and under the solar radiation after the inoculation, the micro-algae and the photosynthetic bacteria with the high cell concentration can be obtained after 5 days, the obtained biomass of the micro-algae or the biomass of the photosynthetic bacteria can be respectively improved by 65 percent or 100 percent compared with the single culture, thereby realizing the purpose of high efficient co-culture of the micro-algae and the photosynthetic bacteria, and an algae bacteria culture which is obtained by culture can be applied as a water quality purifier and a feed additive for the aquaculture.

The present invention provides mutant microorganism that have higher lipid productivity than the wild type microorganisms from which they are derived while producing biomass at levels that are at least 45% of wild type biomass productivity under nitrogen replete conditions. Particular mutants produce at least 50% as much FAME lipid as wild type while producing at least the amount of biomass produced by wild type cells under nitrogen replete conditions. Also provided are methods of producing lipid using the mutant strains.

The invention discloses special EM (Effective Microorganisms) bacteria powder for aquaculture, as well as a preparation method and application of the special EM (Effective Microorganisms) bacteria powder. Bran, corn flour, amino acid powder and the like, which are used as dry matter fillers, are mixed with brown sugar, glucose and the like to obtain a mixture; the mixture is subjected to sealing fermentation at 25-37 DEG C for about 10 days by lactic acid bacteria, bacillus licheniformis and bacillus coagulans, so that fermented materials are prepared; then the prepared fermented materials are dried and crushed and are mixed with bacillus subtilis to obtain a final product. The EM bacteria powder can be directly scattered in a water body to inhibit pathogenic microorganisms through mass propagation of probiotics, decompose harmful substances in the water body, promote the growth of normal floras and beneficial algae in a cultivation ecosystem and keep the ecological balance of the aquaculture water body. The method is adopted to prepare the EM bacteria powder, the fermentation period is short, the process is simple, the equipment investment is low, the materials are convenient to obtain, and the method is easy to implement and is suitable for industrial production and self-production of households.

Disclosed are cross-flow membrane filtration methods for the removal or separation of algal cells from an aqueous environment. The methods of the invention may be used for the simultaneous algal harvesting/dewatering and water/wastewater purification and recycling.

The present invention provides a flow-through photobioreactor containing at least one thermoplastic multi-wall sheet having an upper layer and a lower layer having arranged there between at least two sidewalls, at least one inner wall and two or more end caps. Also provided is a process for the production of a biofuel with the inventive photobioreactor. The photobioreactor and process of the present invention have the following advantages: genetically engineered microbes that give higher yields cannot escape into the environment, water in the system does not evaporate, no weeding (presence of unwanted algae), UV light from the sun is filtered out by the reactor walls, temperature control is possible, CO₂ from power plants, breweries, etc. can be artificially fed to increase yield. The inventive photobioreactor is also less expensive to build than pipe reactors and may have low energy costs to operate, because little or no energy is needed for agitation and pumping in a preferred gravity assisted embodiment.

A tank infrastructure that is installed on space that is covered with human development, and used to grow blue green algae or other algae. This includes application over roads, tracks, buildings, parking lots, and any other space that is viewed from space as being any color other than green due to human development destroying photosynthetic life. It can also be utilized in desert landscapes and other areas such as in or over oceans. The algae produced will act as a large carbon sink to aid in curbing global warming, and will be used in the production of alternative fuels as well as for human or animal consumption and in industry.

This disclosure provides a method to improve lysine and methionine content of algae and cyanobacteria through genetic modification in combination with modified expression of high lysine and methionine proteins as sinks for the amino acids. The method of this disclosure is specifically useful in animal feed production.

The invention relates to a method for treating aquaculture wastewater of an aquatic product by using immobilized algae cells. The method comprises the following steps: firstly, culturing algae cells;secondly, preparing a fixing agent; thirdly, mixing the algae cells with the fixing agent and adding active materials; fourthly, immobilizing the algae cells to prepare algae balls; fifthly, preserving the prepared algae balls in a fluid medium; sixthly, introducing the algae balls bred in the fluid medium into the aquaculture wastewater of the aquatic product for carrying out wastewater treatment. According to the method disclosed by the invention, free algae cells are immobilized or embedded to form the algae balls which can be recovered in time, so that secondary pollution is avoided, the contents of total nitrogen and total phosphorus in an aquaculture water body of the aquatic product can be effectively reduced and the water quality is purified; meanwhile, the algae balls can be usedrepeatedly, so that the utilization is improved; in addition, the algae balls can be used as animal bait, or is processed into other downstream products by separating, and economic value is brought.

The present invention relates to compositions comprising fermented seaweed and/or algae. The invention also relates to processes for providing such compositions, wherein the fermentation times are prolonged to increase bioavailability of the nutrients.