A - Human Necessities – 23 – K
Patent
A - Human Necessities
23
K
99/139, 99/27, 1
A23K 1/16 (2006.01) A61K 7/00 (1990.01) A61K 35/78 (1990.01)
Patent
CA 2008135
PROCESS FOR THE COMPLEX EXTRACTION OF PLANT MATERIALS AND USE OF THE EXTRACTS AND RESIDUES OBTAINED A b s t r a c t The invention relates to a process for the complex extraction of the useful ingredients of fresh, frozen or dried plant materials by extraction, which comprises optionally pretreating the fresh, frozen or dried plant materials or their mixtures after a suitable purification and crushing, then extracting once or several times with an extracting agent taken in a 1 to 40-fold, particularly 1 to 20-fold weight ratio, optionally by using additives and before at least one extraction stage, digesting the plant material to be extracted by streaming steam, vapour of aqueous acid or solvent vapour through the plant material or by boiling it with water, aqueous acid or a solvent in a microwave oven and when a dried plant material is used wetting the material with the agent to be employed for digestion before the digestion, and immediately separating the extract from the plant material extracted after each stage of the extraction, optionally adjusting the pH of the mixture to be extracted to the desired value in the separate stages of extraction and/or optionally adding a reducing agent to the mixture and/or optionally using deionized or distilled water in all operations and using the same or different extracting solvent(s) in the succesive stages of the extraction. The extracts, concentrates or other preparations thus obtained are utilized as: active ingredients in human and veterinary pharmaceutical compositions; flavouring and/or colouring agents in food products or fodders; active ingredients and/or colouring agents in cosmetic compositions; or for the preparation of compositions of the paint industry.
Toth Tunde
Toth Valeria
Toth Valeria K.
Marks & Clerk
Toth Tunde
Toth Valeria
Toth Valeria K.
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