A perfume composition providing differentiated odour depending on the assessment conditions is provided. The perfume composition includes a) less than 20% by weight of perfumery ingredients having an equilibrium headspace concentration (HS) between 151 and 900 microgram/l at 25° C., b) at least 35% by weight of perfumery ingredients having a HS higher than 900 microgram/l at 25° C. and b) 25% by weight of perfumery ingredients having a HS lower than or equal to 150 microgram/l at 25° C. The perfume composition reduces consumer perfume habituation to said perfume product.

In-situ optical spectroscopic monitoring, characterization and feedback control of extraction and purification processes of compounds such as oils, alkaloids, flavonoids, terpenes and cannabinoids derived from plant material are described. Liquids from an extraction or purification process flow down an optically transparent tube, such as one made of glass. An in-situ optical monitoring assembly is configured to be mounted onto the tube to measure optical properties of the liquid extract or liquid condensate as it flows in the tube. Optical properties of the flowing liquid may include optical transmittance, reflectance, photoluminescence, scattering, absorbance, turbidity, nephelometry, polarimetry and colorimetry. The output of the optical monitoring assembly can be used to display spectral and other about the flowing liquid, set alarms to notify an operator of a predetermined condition such as a set point, and used to control extraction or purification process.

Methods for creating concentrated plant material solution are disclosed. Some examples include combining at least a concentrated plant material, at least one terpenoid compound, and a solvent to define a mixture; heating the mixture, wherein a temperature of the mixture is heated above a boiling point of the solvent and wherein the temperature of the heated mixture does not exceed a lower one of a boiling point of the concentrated plant material and a boiling point of the at least one terpenoid compound; and maintaining the temperature of the mixture above the boiling point of the solvent and below the lower one of the boiling point of the concentrated plant material and the boiling point of the at least one terpenoid compound until the amount of solvent remaining in the mixture reaches a predetermined concentration level.

A process and system to extract essential oil from an essential oil-containing food material is described. The process includes subjecting the essential oil-containing food material to a pulsed electric field; extracting the essential oil into water to form a first fluid mixture that contains essential oil, an essential oil-water emulsion, and water; and separating the first fluid mixture into a waste mixture and a second fluid mixture, where the concentration of essential oil in the second fluid mixture is greater than the concentration of essential oil in the first fluid mixture.

A process and system to extract essential oil from an essential oil-containing food material is described. The process includes subjecting the essential oil-containing food material to a pulsed electric field; extracting the essential oil into water to form a first fluid mixture that contains essential oil, an essential oil-water emulsion, and water; and separating the first fluid mixture into a waste mixture and a second fluid mixture, where the concentration of essential oil in the second fluid mixture is greater than the concentration of essential oil in the first fluid mixture.

The present disclosure in general relates to a process for (1) reducing impurities, i.e. undesirable natural components such as waxes and undesirable synthetic materials such as agrochemicals and other environmental pollutants, or (2) fractionation of natural components present in an essential oil using at least one selective membrane.

A system machines and methods for extracting select moieties, flavonoids, and essential oils from plant material without co-extracting chlorophyll, lipids and other undesirable constituents from plants. Super-cooled extraction techniques are taught. Likewise, according to embodiments methods provides 100% grain ethyl alcohol extract with a concentration of chlorophyll that is below 1%.

In a system for performing a multi-step process for selectively purifying various pharmacologically-relevant components of a source plant such as cannabis, an initial step of the process provides a low-temperature, robust process for dehydrating and decarboxylating the starting productfresh raw cannabisby means of a vacuum-assisted microwave distillation process. An important by-product of the dehydration/decarboxylation is a terpene-rich distillate. By doing the terpene capture under vacuum, distillation temperature may be kept low. The low distillation temperature maximizes yields of thermally-sensitive components such as terpenes and cannabinoids.

The disclosed embodiments include systems and methods for the solvent extraction of a substance from a material. The disclosed systems include multiple tanks and an extraction column in communication with the tanks. Solvent transport is accomplished via pressure differentials that are established between or among tanks to cause the solvent to be transported between or among said tanks.

A microwave extraction system comprises a sealed microwave box, a stirrer, a vacuum extraction tank, a vacuum machine, and an ice-water circulation unit; wherein the sealed microwave box is a tank-body set with microwave generators for accommodating the vacuum extraction tank and the stirrer, and the microwave generated by the microwave generators can penetrate into the tank-body; wherein the tank-body is set with a sealing cap to form a sealed space, and the stirrer can stir the object to be extracted; wherein the vacuum extraction tank is for placing the object to be extracted and providing the microwave penetration; wherein the ice-water circulation unit provides ice water to the tank-body; after completing the extraction operation, the ice-water circulation unit is turned-off and microwave-control to an appropriate temperature by the microwave generators; then turning-on the vacuum to perform concentration under reduced pressure; thereby improving microwave efficiency and reducing maintenance cost.