System for producing herbal concentrate

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including external recycle loop

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4241951, F28D 700, A61K 3578

Patent

active

055038107

ABSTRACT:
A preferred embodiment the present invention provides a system for extracting and concentrating active ingredients from herbs. The herbs are boiled in a suitable extraction medium, such as water or alcohol, in an extraction vessel. The extraction vessel is connected to a vacuum line that both serves to lower the pressure of the extraction vessel and to draw off herbal vapor formed in the boiling process. A vapor condenser cools the herbal vapor, forming an herbal condensate that is collected and periodically reintroduced into the extraction vessel, thereby lowering the density of the herbal liquid. After a predetermined period of time, a first portion of herbal liquid is transferred from the extraction vessel to a concentration tank, while the remainder of the herbal liquid continues to boil in the extraction vessel. In a further preferred embodiment of the present invention, the concentration tank is provided with side and bottom heating elements work together to minimize burning of the contents of the concentration tank.

REFERENCES:
patent: 4312837 (1982-01-01), Papp et al.
patent: 4357309 (1982-11-01), Arnold et al.
patent: 5334360 (1994-08-01), Engel et al.

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