Studies on the Removal of Salicylic Acid in Saké by Means of Lactate Form Anion-Exchange Resins

Abstract

Several kinds of anion-exchange resin were compared in relation to the efficiency of the selective adsorption of salicylic acid which had been added in Japanese saké to prevent it from the infection by Hiochi-bacteria. Those resins were used by a chromatographic technique, and the effect of hydroxyl form was compared with the forms which were neutralized with the 1 M lactate buffer solution of pH 5.0 and pH 6.0. Among the resins, Amberite IRA-410, neutralized to pH 6.0 with the lactate buffer solution, was much better than the others because of the efficiency to remove salicylic acid, and has less effect on the change of flavor of de-salicylated saké.