Sughrue Mion, PLLC
Method for recovering amino acids
A method for recovering amino acids, which comprises supplying a mixed solution containing inorganic acid salts, amino acids and non-electrolytes such as saccharides to a first-step resin layer comprising an Na type or K type strongly acidic ion exchange resin; separating an effluent into at least a first fraction containing coloring matters, acidic amino acids and ashes, a second fraction containing neutral amino acids and saccharides, and a third fraction containing betaines; supplying the second fraction to a second-step resin layer comprising at least one resin selected from the group consisting of NH4 type, Ca type and Mg type strongly acidic ion exchange resins, and optionally further supplying it to a third-step resin layer comprising an Mg type or Ca type strongly acidic ion exchange resin different from the resin of the second-step resin layer, thereby recovering various kinds of amino acids contained in an effluent.
Nippon Beet Sugar Mfg. Co., Ltd.
C C C C C C
C12P C12P C12P C12P C12P C12P
inventional inventional inventional inventional inventional inventional
Tsutomu Hiroto Koji Takashi
Aritsuka Kikuchi Sayama Kanno