Recovery of agaritine

Claim 1

A PROCESS FOR THE RECOVERY OF CRYSTALLINE L(+)GLUTAMIC ACID 5-(2-(A-HYDROXY)-P-TOLYL HYDRAZIDE) WHICH COMPRISES THE STEPS OF MIXING MUSHROOMS OF TENUS AGARICUS WITH A LOWER ALKANOL, SEPARATING THE LIQUID PHASE FROM THE RESULTING MIXTURE, CONCENTRATING SAID LIQUID PHASE AT A TEMPERATURE BELOW ABOUT 350*C., CONTACINT THE RESULTING CONCENTRATE AT A TEMPERATURE BETWEEN ABOUT 0*C. AND 50*C. WITH AN ANION-EXCHANGE RESIN SELECTED FROM THE GROUP CONSISTING OF AN AROMATIC AMINE-FORMALDEHYDE CONDENSATION PRODUCT, MELAMINE CONDENSATION PRODUCT CONTAINING FREE TERTIARY AMINO AND QUATERNARY AMMONIUM GROUPS, AND POLYSTYRENES CONTAINING QUATERNARY AMMONIUM GROUPS, ELUTING THE ANION-EXCHANGE RESIN WITH WATER, ADJUSTING THE ELUATE PH TO BETWEEN ABOUT 6.0 AND 7.5, CONTACTING THE ELUATE THUS OBTAINED AT A TEMPERATURE BETWEEN ABOUT 0*C. AND 50*C. WITH A SULFONATED CATION-EXCHANGE RESIN, FRACTIONALLY ELUTING THE CATION-EXCHANGE RESIN WITH WATER, AND CONCENTRATING THE ELUTED FRACTIONS.