Systems and methods for solvent-free direct extraction of target compounds from plant matter are disclosed herein. The disclosed systems and methods use low pressure to reduce the evaporation temperature of target compounds without affecting the chemical integrity thereof. Target compounds are extracted from the plant matter in an evacuation chamber, and the extracted target compounds are then collected using a cooling system. Target compounds may be drawn from the evacuation chamber into the cooling system using a carrier gas to facilitate transport of the targeted compounds in the vapor phase. The evaporated target compounds may, for example, be drawn into the cooling system using a recirculation system that includes a blower. The disclosed systems and methods may be used, for example, to extract target compounds from plant matter such as fresh or dried cannabis and hemp, lavender, rosemary, lilac, or other suitable plant matter containing desirable compounds for extraction.

Systems and methods for extracting useful by-products and natural rubber from non-Hevea rubber bearing plants are disclosed.

This disclosure describes systems, methods, and devices for phytochemical extraction. One example extraction system includes two solvent columns, a material column, and a dewaxing column. The solvent columns store and provide solvent for stripping target chemicals from plant material in the material column. The solvent mixed with target chemicals passes into the dewaxing column, where the target chemicals are separated from waxes and lipids. Cooling is applied to elements of the system by way of an open-loop CO2 refrigeration method. Solvent is moved from the solvent columns to the material column by creating a pressure differential between the two solvent columns.

Methods of decontaminating bone tissue and an apparatus or system for the same are provided. The methods can be multi-batch processes and include contacting the bone tissue having contaminants with carbon dioxide to decontaminate the bone tissue and to form carbon dioxide having contaminants. The contaminated carbon dioxide is collected and the contaminants are removed to obtain purified carbon dioxide which can be recycled to treat contaminated bone tissue. The contaminated carbon dioxide can be purified by bubbling it through water and/or an organic solvent followed by acid treatment, filtering and liquefying the carbon dioxide. Contaminants that can be removed from contaminated bone tissue, and in turn, from contaminated carbon dioxide include infectious organisms, bacteria, viruses, protozoa, parasites, fungi and mold or a mixture thereof

Systems and methods for extracting a compound of interest from plant material, such as acannabidiol (CBD) from cannabis, are provided. Particularly, the disclosed systems and methods utilize a crude oil to separate water, fats, and proteins prior to preparation of a CBD distillate. The systems and methods are operable with conventional solvents containing between about 5 wt % and about 8 wt % water.

A powder extractor. Multiple tank partitions are connected between the front and rear wall panels of a rectangular box. Each tank partition divides the inner cavity of the tank into a plurality of soaking tanks. The upper part of each tank partition is respectively provided There are overflow ports. The overflow ports on the partitions of adjacent tanks are staggered in the front and rear directions, and the height of each overflow port gradually decreases from right to left. The discharge end of the rightmost soaking tank relates to a new melt inlet, the feed end of the leftmost soaking tank relates to a concentrated liquid outlet; the leftmost soaking tank is provided with a feed inlet above the feed end. The powder extractor has high soaking efficiency, reduces powder waste, and improves economic benefits.

This disclosure provides methods and systems for the supercritical fluid extraction of cannabinoids from cannabis. The supercritical fluid extraction of cannabinoids is performed with carbon dioxide (CO.sub.2) balanced with one or more hydrocarbons, such as propane, propene, and propadiene. As demonstrated, the extraction can be carried out at maximum efficiency and energy savings while keeping the wax formation at minimum by lowering temperature. The methods and systems disclosed herein reduce the production time and safety/environmental hazards and are suitable for proper and safe extraction in non-GMP and GMP environments.

A method for extracting animal-derived pulmonary surfactants, including forming an extract of an animal lung, forming a precipitate by mixing the extract of the animal lung with a cationic flocculant solution containing poly(diallyldimethyl ammonium chloride) (pDADMAC), separating an organic phase containing pulmonary surfactants from the precipitate, recovering the pulmonary surfactants from the organic phase.

A method provides for removing oil content from a source material and extracting protein from the source material prior to generating a protein concentrate, including decorticating the source material, the source material having a protein and an oil content therein, the decorticating to remove a cortex from the source material. The method includes creating a flour from the source material having the cortex removed therefrom, removing at least a portion of the oil content from the flour by generating a solvent mixture by mixing the flour with a solvent and extracting a de-oiled flour from the solvent mixture, including oil and sugars extracted from the flour. The solvent may include supercritical CO2, subcritical CO2, ethanol, or a combination thereof. The method includes drying the de-oiled flour using at least one dryer and extracting a protein concentrate from the de-oiled flour.

A closed loop extraction system for extracting desired components from raw plant matter and method of use is disclosed. The closed loop extraction system features a solvent source, a chill tank, a wash tank, a rinse tank, a centrifuge, and a feed tank all in fluid communication via a series of interconnected pump systems. The method of extracting the desired products from raw plant matter uses this system to perform the extraction with a reduced amount of solvent in an energy-efficient manner.