Cranberry color extraction

Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...

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210652, B01D 1300

Patent

active

047754770

ABSTRACT:
A process for the extraction of cranberry presscake is disclosed which involves the steps of grinding the presscake, preferably with a filter aid like rice hulls, subjecting this mixture to water extraction, microfiltering the extract to remove colloidal high molecular weight components and passing the microfiltered extract through reverse osmosis to recover a red-colored solution.

REFERENCES:
patent: 3799806 (1974-03-01), Madsen
patent: 4083779 (1978-04-01), Combe et al.
patent: 4320009 (1982-03-01), Hilton et al.
Ion Exchange Purified Anthocyanin Pigments Ash Colorant for Cranberry Juice Cocktail, Jour. of Fd. Sci., 1973-Chiriboga & Francis.
An Anthocyanin Recovery System From Cranberry Pomace, J. Amer. Soc. Hort. Sci., 95(2):223-236-Chiriboga & Francis.
Anthocyanin Recovery From Cranberry Pulp Wastes by Membrane Technology-A. H. Woo et al., vol. 24, (1980), Jr. of Food Sci., pp. 875-879.

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