Process for preparing grapeseed extracts enriched in procyanidol

Details Process for preparing grapeseed extracts enriched in procyanidol Process for preparing grapeseed extracts enriched in procyanidol

1992-09-23

1996-01-16

Wityshyn, Michael G.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Conjugate or complex

210650, A61K 3578

Patent

active

054845947

ABSTRACT:
An extract enriched in procyanidol oligomers almost free from monomers is obtained by subjecting a crude vegetable extract, for instance from Vitis vinifera, to ultrafiltration on membranes of cut-off from 3,000 to 600, or to a selective extraction with ethers, or esters or mixtures of ethyl acetate and aromatic hydrocarbons.

REFERENCES:
patent: 4698360 (1987-10-01), Masquelier
patent: 4963527 (1990-10-01), Bombardelli
McGregor, W. C., Membrane Separations in Biotech Marcel Dekker, N.Y., 1986, pp. 61-64, 161, 201-215.
Steinmetz, E. F., Codex Vegetabilis, Amsterdam, 1957, #1206.

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