Process for selectively extracting procyanidins

Details Process for selectively extracting procyanidins Process for selectively extracting procyanidins

2005-10-03

2009-02-03

Dentz, Bernard (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07485735

ABSTRACT:
A process is described for selectively extracting cocoa procyanidins from an aqueous mixture of cocoa polyphenols by using a particular sequence of solvents to extract selected procyanidin monomers and/or oligomers. The solvents are n-butyl acetate, ethyl acetate, methyl acetate, diethyl ether, or mixtures of methyl acetate and diethyl ether. Preferably, the aqueous mixture of cocoa polyphenols is first extracted with n-butyl acetate. The mixtures of methyl acetate and diethyl ether are between 25:75 and 75:25 (v/v).

REFERENCES:
patent: 6627232 (2003-09-01), Hammerstone et al.
patent: WO 2008/051799 (2008-02-01), None

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