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.

The present disclosure is in the field of ‘pharmacognosy’ and ‘chemistry of natural products’. The present disclosure generally relates to a process of isolation and purification of Biochemical Constituents from algae. The present disclosure particularly relates to a process of isolation and purification of Biochemical Constituents from a biomass of cyanobacteria. The present disclosure provides a process for isolating and extracting phycocyanins, chlorophylls, proteins and polysaccharides from the spirulina biomass.

Disclosed are effective methods for activating, washing, specifically extracting and purifying cannabinoids from Cannabis plant tissues using heat activation, washing impurities away with a polar solvent, optionally modified with an organic acid, base, surfactant or inorganic salt, extracting the activated non-polar cannabinoids with a potable selective solvent such as ethanol. The extracted active ingredients may be purified by chromatography and detected and quantified by mass spectrometry with external or isotopic or otherwise labelled standards.

A method of separating and purifying a mixed stream of contaminated reclaimed polyethylene and contaminated reclaimed polypropylene is provided. The method comprises the steps of extraction, dissolution, settling, purification, and solvent separation to produce separate streams of purified recycled polyethylene and purified recycled polypropylene. Both separate streams are produced in the same production plant operating in swing mode, and have virgin-like optical properties.

Embodiments of the inventive technology may be described as a plant biomass extraction apparatus for production of liquid extract from plant biomass, using carbon dioxide, including one or more of: carbon dioxide chiller, extraction chamber, extract collection chamber, at least one valve, and fluid conveyance componentry, configured to define a closed loop for passive, pump-free extract production. Certain embodiments may avoid saturation of the extractant, and the resultant compromise of process effectiveness that may be seen in those apparatus relying on mechanical pump(s) for flow and/or may present a tabletop, closed loop liquid carbon dioxide extraction apparatus for the production of an extract from plant biomass or other matrix.

A method for forming self-assembled inorganic nanostructures. The method includes forming a mixture by adding a plurality of inorganic nanostructures to an aqueous solution under atmospheric pressure. Forming the mixture includes adding a first plurality of inorganic nanostructures to the aqueous solution and adding a second plurality of inorganic nanostructures to the aqueous solution. The first plurality of inorganic nanostructures has a first plurality of superficial sites with an opposite-signed surface zeta potential respective to a surface zeta potential of a second plurality of superficial sites of the second plurality of inorganic nanostructures.

Systems and methods for extracting a compound of interest from plant material, such as a cannabidiol (CBD) from cannabis, are provided. Particularly, the disclosed systems and methods utilize a crude oil to separate water and impurities including fats, sugars, resin glues, chlorophyll, and proteins prior to preparation of a CBD distillate. The systems and methods are operable to remove the impurities from the crude oil with a brine solution and at least one acid prior to distillation. The systems and methods are operable with conventional solvents containing between about 5 wt % and about 8 wt % water.

Devices and methods for the high-pressure treatment of bulk material by extraction and/or impregnation. The bulk material is arranged in the interior volume of a pressure vessel device and is treated at a high pressure while sealed off from the surroundings. The high-pressure treatment is performed batchwise in a closed system in the pressure vessel device in a pressure-tight fashion. The bulk material is fed batchwise to the interior volume with the pressure vessel device closed and being arranged on at least one treatment level and, after the high-pressure treatment has occurred, being discharged batchwise from the interior volume with the pressure vessel device closed. The invention furthermore relates to the use of a supporting tray module with at least one treatment level for the high-pressure treatment in a closed system.

Processes for conditioning a dry tailings material from a non-aqueous extraction (NAE) process for extracting bitumen from oil sands ore are described. The process can include contacting a main stream of the dry tailings material with a re-wetted tailings seed stream to produce a combined tailings material, and subjecting the combined tailings material to re-wetting to produce a re-wetted tailings material. The re-wetting can include adding a wetting agent to the combined tailings material, and imparting mixing to the combined tailings material. Contacting the main stream of the dry tailings material with the re-wetted tailings seed stream can include recycling a portion of the re-wetted tailings material to the main stream of the dry tailings material as the re-wetted tailings seed stream to produce the combined tailings material, or subjecting a sub-stream of the dry tailings material to sub-stream re-wetting to produce the re-wetted tailings seed stream.

Methods of treating or preventing skin diseases, such as for example, lichen sclerosus, pruritis or dysuria in a patient are provided. A therapeutically effective amount of a Peganum harmala extract or a pharmaceutical composition thereof is administered to the patient in need thereof. Also provided are methods for making a Peganum harmala extract and pharmaceutical compositions thereof.