countercurrent extraction

countercurrent extraction

[′kau̇nt·ər‚kər·ənt ‚ek′strak·shən]
(chemical engineering)
A liquid-liquid extraction process in which the solvent and the process stream in contact with each other flow in opposite directions. Also known as countercurrent separation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Response surface methodology (RSM) was employed to optimize the extraction of dihydromyricetin from Ampelopsis grossedentata leaves using dynamic microwave assisted multi-stage countercurrent extraction. The influence of temperature, pH, time and solvent/material ratio on the yield of extraction was investigated.
Another technique that is attracting growing attention in recent years is the multi-stage countercurrent extraction process (MCE).
We have previously reported the development of a novel extraction technique which combines microwave assisted extraction with multi-stage countercurrent extraction processes (MAMCE) [21].
Microwave assisted multi-stage countercurrent extraction (MAMCE) Microwave assisted MCE was carried out using the Microwave Accelerated Reaction System (MARS, CEM Corporation, Mattews, NC, USA).
Development of multi-stage countercurrent extraction technology for the extraction of glycyrrhizic acid (GA) from licorice (Glycyrrhiza uralensis Fisch).
Microwave assisted multi-stage countercurrent extraction of dihydromyricetin from Ampelopsis grossedentata.
Kallio, "Large-scale supercritical carbon dioxide extraction and supercritical carbon dioxide countercurrent extraction of cloudberry seed oil," Journal of Agricultural and Food Chemistry, vol.
The general techniques of medicinal plant extraction include maceration, infusion, percolation, digestion, decoction, hot continuous extraction (Soxhlet), aqueous-alcoholic extraction by fermentation, countercurrent extraction, microwave-assisted extraction, ultrasound extraction (sonication), supercritical fluid extraction, and phytonic extraction (with hydrofluorocarbon solvents).