Methods for extracting one or more chemical compounds from cannabis plant material are provided. In some embodiments, the method may comprise: providing the cannabis plant material; extracting the cannabis plant material with a solvent to produce a solvent extract; and filtering the solvent extract through a filter material to produce a filtered extract. Also provided are related systems. Related cannabis extracts and products comprising cannabis extracts are also provided.

A closed rotatable extraction system includes at least two tubes where one tube accepts an extractable material, and the system can be evacuated through a valve in the system. At least one conduit comprises at least one flexible hose, bent ridged pipe, t-pipe, curved pipe, or any combination thereof. At least one valve that when open allows evacuation of the system, and optionally for introduction of a solvent for extraction. When the at least one valve is closed a solvent vapor atmosphere is defined as almost exclusively or exclusively the solvent vapor and has a gas pressure that is about the solvents vapor pressure or less in the closed rotatable extraction system. The closed rotatable extraction system or a portion thereof can involve a first rotation orientation for liquid transfer and a second orientation for a vapor transfer.

A method for extracting bioactive compounds from plant materials using supercritical glycerin and at least one inert co-solvent that lowers the effective supercritical point of the supercritical glycerin to its boiling point, and the extracts obtained from the method.

A method of extracting at least one cannabinoid from a biomass comprises the following steps (i) contacting the biomass with a solvent formulation which comprises a C.sub.1-4 fluorinated hydrocarbon or a C.sub.1-4 hydrofluorocarbon ether, thereby to charge the solvent formulation with an extract from the biomass; and (ii) separating charged solvent formulation from the biomass.

System and methods for recycling a material comprising a polymer in an expanded state is disclosed. The system can include a shredder, a heating chamber operatively connected to the shredder, a condenser operatively connected to the heating chamber, a solvent tank operatively connected to the condenser, and a circulation unit operatively connected to the solvent tank and the heating chamber.

Methods and apparatus for the improved extraction of compounds from a charge material are disclosed. The improved extraction is achieved at least a bypass line that permits the transfer of sCO.sub.2 and/or CO.sub.2 to an extraction vessel and a hopper that achieves greater productivity in loading the extraction vessel.

A process for extracting biosurfactants from the solid content in corn steep liquor, using a buffered aqueous solution having a pH of 6-8 and a biosurfactant extract obtained using the process of the invention, and the uses in cosmetics, food, pharmaceutical, agrochemical and environmental industries. The obtained biosurfactant has the form of a white powder with foaming capacity and is able to reduce water surface tension by at least 16-20 units.

The invention relates to methods of separating or isolating a component from a plant using freeze separation. The invention includes products produced by said methods.

A cannabis processing system comprises a grinding apparatus and a cell disruption apparatus. The grinding apparatus is configured to grind wet cannabis cuttings to from a ground, wet cannabis material comprising wet cannabis particles having an average particle size within a range of from about 1 mm to about 3 mm. The cell disruption apparatus is downstream of the grinding apparatus and is configured to disrupt cell walls of plant cells of the wet cannabis particles through one or more of flash freezing, a cellulose solvent, applied negative pressure, and vacuum distillation to facilitate removal of one or more cannabinoids within the plant cells of the wet cannabis particles. Methods of processing cannabis are also described.

An improved method for making cannabinoids from plant material utilizes the following steps. Plant material is contacted with an aqueous alkaline solution containing a hydroxide base and essentially no organic solvents, thereby extracting cannabinoids including carboxylic acids and salts and producing an alkaline extract. Non-soluble plant material is removed from the alkaline extract to produce a clarified alkaline extract. The extracted cannabinoids are decarboxylated and the decarboxylated cannabinoids are crystallized/precipitated from the clarified alkaline extract at a pH greater than 7.