Production of Rutin From Buckwheat

Methods for the extraction and purification of rutin from either green or dried buckwheat meal are described. The best solvent and extraction time for optimum yields of rutin were determined by comparing and evaluating various solvents. For the green plant ten minutes extraction time with hot 85 per cent isopropyl alcohol is recommended. For buckwheat meal 70 to 85 per cent isopropyl alcohol, either hot or cold, is the most efficient extraction solvent for rutin.