Patent ID: 8591825

Claim:
An extraction apparatus having a chamber and comprising: a shaft having a first end and a second end, the first end being adjacent to a top of the chamber, the second end being adjacent to a bottom of the chamber; at least one rotation disc juxtaposed at the first end of the shaft, each of the at least one rotation disc having at least one opening, the shaft passing through a center of the each of the at least one rotation disc; a biological substance feeding entrance located at the top of the chamber for introducing a biological substance to the at least one opening of an uppermost rotation disc of the at least one rotation disc, such that the biological substance moves downward and sequentially passes through the at least one opening of the each of the at least one rotation disc; an extraction solvent injection entrance located at the bottom of the chamber, an extraction solvent being injected into the chamber through the extraction solvent injection entrance, such that the extraction solvent and the biological substance are reversely contacted to generate an extract and a raffinate; an extract outlet located at the top of the chamber for discharging the extract; a raffinate outlet located at the bottom of the chamber for discharging the raffinate; and a depositor configured at the second end of the shaft for collecting the raffinate and discharging the raffinate from the chamber through the raffinate outlet the depositor comprising a plurality of components coupled to and extending from the second end of the shaft or a screw thread extending from the second end of the shaft along the longitudinal axis.