METHOD OF STABILIZING PICEATANNOL INCLUDED IN WATER-CONTAINING SOLUTION OF PLANT EXTRACT, AND WATER-CONTAINING SOLUTION OF PLANT EXTRACT

摘要

PROBLEM TO BE SOLVED: To provide a method of stabilizing piceatannol included in a water-containing solution of a plant extract, and the water-containing solution of the plant extract.;SOLUTION: The method of stabilizing piceatannol included in a water-containing solution of a plant extract (excluding grape (Vitaceae) extract includes a step of controlling pH of the solution at 3.0-4.5.;COPYRIGHT: (C)2015,JPO&INPIT