Patent ID: 6147228
Filing Date: 2000-11-14
Classification: C07D

Abstract:
A process for the isolation of Garcinia acid from the fresh or dried rinds of the fruits of Garcinia indica, Garcinia cambogia and/or Garcinia atroviridis, comprising the steps of, in sequence:(a) subjecting the rinds to extraction to form an extract(b) adding a solvent to the extract to remove pectin and form a filtrate(c) converting the filtrate to form an alkali salt(d) neutralizing the alkali salt with an acid, followed by evaporation, to form a concentrate(e) purifying said concentrate using a solvent to remove inorganic matter as impurities, to form a second filtrate(f) concentrating the second filtrate to yield a crude Garcinia acid(g) recrystallizing the crude to form pure crystals of Garcinia acid.