A process for extracting a target compound from a biomass includes: extracting a compound from a biomass charge using supercritical or subcritical CO.sub.2 as a solvent, at a first pressure and a first temperature, to yield a compound-laden solvent stream, the compound-laden solvent stream including the solvent, a solubilized target compound, and a solubilized byproduct compound; changing the temperature while maintaining the first pressure of the compound-laden solvent stream to desolubilize the byproduct compound from the compound-laden solvent stream to yield a resultant stream containing the solvent, the solubilized target compound, and a desolubilized byproduct compound; passing the resultant stream through a filter medium to separate the desolubilized byproduct compound from the solubilized target compound; and collecting the solubilized target compound.

The present invention provides a dynamic interface system between an extraction device and a chromatographic purification device for separating and purifying substance(s) from a mixture or matrix. One embodiment is the Supercritical Fluid Interface (“SFI”) between Supercritical Fluid Extraction (“SFE”), and Supercritical Fluid Chromatography (“SFC”). The SFI is capable of interfacing; gas, subcritical and supercritical fluid extraction methods and pair with gas, subcritical and supercritical fluid chromatography technologies that operate within the pressure and temperature parameters of the SFI. The SFI can operate up to 200 degrees celsius and 5000 psi. This interface technology allows for an inline oil extraction and chromatographic separation, the SFI can pair extraction and chromatography with the same solvent in different mobile phases, whereas the extraction can be performed using CO.sub.2 as a solvent in sub-critical phase and the SFI can receive the subcritical solution and then increase pressure and/or temperature to achieve supercritical state as required for injection into supercritical fluid chromatography technologies. The SFI coupling between SFE and SFC can to extract and refine cannabinoids from the cannabis industrious, hemp, plant and can also be applied to improve efficiency in an industry that extracts and refines oils, through chromatography, from organic materials using a gas, or sub/supercritical fluid as a solvent and mobile phase.

Described is an extraction device for extracting compounds from plant material and a method for using such an extraction device. The extraction device comprises an extraction tank receiving plant material and dissolving soluble compounds inside the plant material into a solvent to form a micelle. A series of fluidly connected separation chambers separate purified compounds from the micelle, resulting in purified compounds in each of the separation chambers and solvent. A heat exchanger and a chilled reservoir are used for cooling and storing the solvent. A pump is used for pumping and circulating the solvent into the extraction device. Finally, a control system automatically controls temperature and flow in the extraction device.

The present invention generally relates to a method of reducing contamination from plastics. The resulting purer plastic can be used in demanding applications.

The present invention relates to a method for extracting collagen from a liposuction effluent, wherein collagen is extracted by treating a collagen-containing liposuction effluent in the presence of a supercritical fluid. According to the present invention, conventionally discarded collagen in a liposuction effluent can be extracted at high purity, and the extracted high purity collagen can be widely used in medical, pharmaceutical, and cosmetic products.

A system is provided that includes a solvent source; a canister adapted to contain plant material and positioned downstream of the solvent source; an extract container positioned for receiving and collecting at least a portion of an extract solution from at least the canister, the extract container further positioned to separate at least a portion of the solvent from at least the portion of the extract solution, thereby providing a recycled solvent; a solvent collection line for directing the recycled solvent; and a coolant line positioned for directing coolant that is thermally coupled to at least a portion of the solvent collection line for cooling the recycled solvent that is flowing through the solvent collection line.

A method for extracting and isolating terpenes and aromatic compounds from Cannabis plant material by the steps of grinding the cannabis plant material to obtain a ground cannabis, performing a CO2 supercritical extraction upon a first portion of the ground cannabis, wherein said supercritical extraction is performed at temperature below freezing, between −30 to 0 centigrade, for a period of 3 to 5 hours, at between 1000-1300 psi, performing a steam distillation upon a second portion of the ground cannabis, performing a butane extraction upon a third portion of the ground cannabis, wherein the butane extraction is performed at a temperature between −30 to 0 centigrade, performing an alcohol extraction upon a fourth portion of the ground cannabis, wherein the alcohol extraction is performed at a temperature between −30 to 0 centigrade, performing a maceration upon a fifth portion of the ground cannabis, wherein the maceration is performed with coconut oil at a temperature of between 40-70 centigrade, combining at least a portion of each of the resultant extracts from the CO2 supercritical extraction step, the steam distillation step, the butane extraction step, the alcohol extraction step and the maceration step to create a combined extract, and then fractionally distilling the combined extract to separate terpenes and other aromatic compounds from the combined extract.

A solvent extraction process for extracting oil containing dihomolinolenic acid from marine macro-algae, since as ascophyllum. Harvested ascophyllum is desalted to a salt content of less than 3% by weight, and dried to a moisture content of less than 5% by weight, and is then chopped into pieces of maximum dimension not exceeding 5 mm. The desalted, dried and chopped ascophyllum is then packed into a cellulose soxhlet thimble (13) and covered with a silica glass wool. The soxhlet thimble (13) is then placed in a vessel (12) of a soxhlet apparatus (11). A solvent reservoir (15) is charged with the solvent, namely, a food grade hexane, and is evaporated from the solvent reservoir (15) and condensed in a condenser (22) above the vessel (12) and is drip-fed into the soxhlet thimble (13) for extracting the oil containing the dihomolinolenic acid from the ascophyllum. The solvent with the extracted oil entrained therein is returned to the solvent reservoir (15) and the process continues until substantially all the oil has been extracted from the ascophyllum. The oil containing the dihomolinolenic acid is then recovered from the solvent by low pressure distillation until the solvent content of the oil containing the dihomolinolenic acid has been reduced to less than 5% by weight. The oil containing the dihomolinolenic acid is then desolvated to remove the remaining solvent therefrom.

A composition for treating respiratory diseases and strengthening the immune system is provided including a synergic mixture of a) oil extracted from seeds of the plant Nigella sativa diluted in propylene glycol with b) an alcoholic extract with ethanol obtained from aerial parts of the plant Asclepias curassavica. The composition is prepared by (a) extracting seed oil from the Nigella sativa plant, adding the extracted seed oil to propylene glycol; (b) macerating aerial parts of Asclepias curassavica plants in ethanol with a resting time if subjected to a water bath or another resting time without the water bath, straining and filtering; c) mixing a volume of the alcoholic extract of Asclepias curassavica with a volume of oil extracted from the seeds of the Nigella sativa plant diluted in propylene glycol; d) shaking and letting it rest.

A plant oil extraction device includes one or modules for extraction of a product, e.g., oil, from a plant biomass. Various embodiments of the plant oil extraction device are described that include one or more features for producing a clean organic stream, free from waxes and terpenes, from biomass feedstocks such as industrial hemp. Related systems, methods, and articles of manufacture are also described.