116 results about "Biomass yield" patented technology

Systems and methods for maintaining the dominance and increasing the biomass production of Nannochloropsis in an algae cultivation system are provided. Exemplary methods include applying an effective amount of ozone to Nannochloropsis growing in an algae cultivation system. A further method may include applying a shock amount of ozone above 10 milligrams/liter or higher in the inlet stream flowing into the algae cultivation system. Various exemplary embodiments may include a system for maintaining dominance and increasing the biomass production of Nannochloropsis in an algae cultivation system. The system may comprise a processor, and a computer readable storage medium having instructions for execution by the processor. The instructions for execution by the processor cause the processor to maintain dominance and increase biomass production of the Nannochloropsis in the algae cultivation system.

The invention provides the disclosure of a novel plant/algae/cyanobacteria photosynthesis, biomass production, and productivity pathway involving low carbon dioxide inducible (LCI) proteins. According to the invention, the activity of one or more LCI proteins may be modulated to increase the same under conditions where such proteins are typically repressed. According to the invention, modulation of LCI protein activity was able to increase biomass production by as much as 80% under elevated CO₂ conditions. The invention includes methods, and genetically modified plants/algae/cyanobacteria, cells, plant parts and tissues.

The invention provides freshwater chlorella sorokiniana XJ02 and application thereof in fixation of CO2 and production of microalgae oil. The preservation number of the chlorella is CCTCC (China Center For Type Culture Collection) NO: M2013104. The chlorella disclosed by the invention can be used for fixing 0.03-20% of CO2 at high efficiency, the CO2 fixation efficiency of chlorella is 130-343mg/L/d, the biomass (dry weight) concentration of the chlorella is 720-2250mg/L, the oil content of chlorella is 29.2-41%, the oil fatty acid of the chlorella is mainly composed of C16 and C18 short-chain fatty acids, and the chlorella is suitable for production of biodiesel. Compared with the reported microalgae, the chlorella has higher CO2 fixation efficiency and biomass yield; and the chlorella can be used for obtaining the microalgae oil at high yield by selecting an appropriate culture condition, thus the production cost of the microalgae oil can be greatly reduced. An excellent production algae is provided for high-efficient fixation of CO2 in the environment and preparation of biodiesel by the microalgae oil.

A bio-reactor for enhancing the biomass yield using a closed sterile vessel having a medium, said reactor comprising a central shaft, a support matrix oriented horizontally and dividing the vessel into an upper and a lower chamber, a means for stirring selected from turbine-2,4,6-impeller; marine blade impeller; helical blade impeller; mounted onto the central shaft and located at a predetermined distance from the support matrix so as to generate both radially and axially directed volumetric flow of the media; and at least two semi-circular sparges located both in the upper and lower compartments of the vessel at a predetermined distance from the support matrix.

The foliage and stems of plant species from the family Rosaceae, genus Prunus, yield natural pesticides when macerated. Hydrodistillation of macerated plant biomass yields a concentrated solution of organic volatile compounds that act synergistically as a natural pesticide. Volatile compounds liberated from Prunus biomass include 2-propanol, hexanal, trans-2-hexenal, 1-hexanol, cis-3-hexenol, mandelonitrile, benzoic acid, benzaldehyde, benzyl alcohol, hydrocyanic acid and others. These compounds may be removed from the distillate and reformulated to form a standard concentrated solution, with benzaldehyde, mandelonitrile and hydrogen cyanide being the major components. The extracts may be used as a soil treatment or soil fumigant for soil-borne pests. They also may be formulated for application as solutions with or without a surfactant or formulated as powders for foliar treatment. In a particular application, such extracts may be applied to postharvest commodities such as fruits, vegetables, roots, grains and nuts to protect against certain fungi and insects.

The invention discloses a method for culturing marine oil-producing microalgae, which is characterized in that: the marine microalgae are culture by using daily sewage to supply nutritional salts and using high-concentration carbon dioxide to provide a carbon source, so the biomass yield of the marine microalgae is improved; and the microalgae are subjected to direct high-light exposure so as to improve the oil and fat yield of the marine microalgae. In the invention, the culture cost of the oil-enriched marine microalgae is lowered, the process of inducing the oil and fat accumulation in microalgae is simplified, and the industrialization of the large-scale culture of oil-enriched marine microalgae is promoted.

The invention relates to the technical field of biomass energy, and in particular to a freshwater chlorella strain (i) Chlorella sorokiniana (/i) GS03 and application thereof to industrial flue gas CO2 fixation and production of microalgae biodiesel. The chlorella strain (i) C.sorokiniana (/i) GS03 provided by the invention has a preservation number of CCTCC M2013607, and higher CO2 tolerance, higher fixation efficiency of high-concentration carbon dioxide and higher biomass yield and oil yield compared with the reported microalgae strains. Therefore, the invention can greatly reduce microalgal oil production cost, and provides a good production strain for algae for efficient fixation of CO2 in typical industrial flue gas environment and biodiesel production from microalgae oil, and shows great application prospect in the field of biomass energy.

The invention discloses a method for the comprehensive utilization of energy grass in the fields of feeds, biogas and paper pulp, and belongs to the field of biomass resource utilization. For obtaining the highest biomass yield per unit land area, and fully utilizing the energy grass (an economic crop with a huge application potential), according to the method, the applications of the energy grass in the three fields of the feeds, the biogas and the paper pulp are organically combined, and through creative tests and full actual application effect contrasts, a set of effective comprehensive utilization method of the energy grass is developed.

Methods for modulating plants using optimized ZmME293 down-regulation constructs are disclosed. Also disclosed are nucleotide sequences, constructs, vectors, and modified plant cells, as well as transgenic plants displaying increased seed and/or biomass yield, improved tolerance to abiotic stress such as drought or high plant density, improved nitrogen utilization efficiency, increased ear number and/or reduction in time to scenescence.

The invention provides a multilayer stacked adsorption type microalgae biological membrane photobioreactor based on a light guide carrier. The multilayer stacked adsorption type microalgae biologicalmembrane photobioreactor is mainly composed of a plurality of layers of stacked solid light guide plates, wherein an LED (light emitting diode) lamp strip is mounted at the left side of each layer ofthe solid light guide plate; light reflection membranes with high light reflectivity are stuck on the other surfaces except the left side end face and the lower surface; and a liquid culture medium source layer, a micro-pore filtering membrane and a microalgae biological membrane, which are made of a porous material, are flatly paved on the upper surface of each solid light guide plate in sequencefrom bottom to top. The plurality of layers of the stacked solid light guide plates are arranged on a reactor bracket; the adjacent light guide plates are separated by the bracket; and a liquid culture medium inlet is formed in the left side of the bracket and a liquid culture medium outlet is formed in the right side of the bracket. According to the multilayer stacked adsorption type microalgaebiological membrane photobioreactor, the light guide plates are used as light source transmission and conversion media and adsorption type microalgae biological membrane carriers, and microalgae cellsare cultured in a multilayer stacking manner, so that the microalgae biomass yield of a unit occupied area is improved.