Process for isolating phenolic compounds

Details Process for isolating phenolic compounds Process for isolating phenolic compounds

2006-03-21

2006-03-21

Solola, Taofiq (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C536S008000, C536S128000

Reexamination Certificate

active

07015339

ABSTRACT:
The invention provides compositions and methods for isolating phenolic compounds, particularly isoflavones, from aqueous extracts of plant materials that contain such compounds. The process comprising:(a) providing an aqueous plant extract at a first pH less than 10, the aqueous plant extract comprising a plurality of phenolic compounds;(b) extracting the aqueous plant extract with a first organic solvent to yield a first organic extract;(c) extracting the first organic extract with an aqueous phase of pH greater than 10 to yield a phenol rich aqueous phase;(d) adjusting the pH of the phenol rich aqueous phase to a pH of less than 9; and(e) isolating the phenolic compounds from the phenol rich aqueous phase.

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