Patent ID: 9266818
Filing Date: 2016-02-23
CPC Classification: A61P,C07C

Claim Text:
1. A process for purification of free bio amino acids, said process comprising: a. extracting plant parts rich in free amino acids with deionized water or double distilled water to obtain an aqueous extract, b. filtering the aqueous extract obtained in step (a) through cotton filters to obtain a filtered aqueous extract, c. passing the filtered aqueous extract of step (b) through a first column packed with polymethacrylate based resin with particle size of 100-300 microns and saturated with water to obtain a polyphenol free effluent, d. passing the obtained polyphenol free effluent of step (c) through a second column packed with a polystyrene divinylbenzene polymer based resin with particle size of 120 microns saturated with deionized water or double distilled water to form a second effluent, e. concentrating the second effluent of step (d) containing free bio amino acids with a rotary evaporator followed by spray drying or through lyophilization by freeze drying to a obtain a white to light brown colored free amino acid rich powder.