| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for efficiently producing extract or powder thereof containing phenols in high concentrations from salt-pickled red perilla leaves, and to utilize it in antiallergic food/drink or the like. <P>SOLUTION: This method comprises the following process: salt-pickled red perilla leaves are subjected to extraction with a hydrophilic solvent under acidic conditions under heating, the resulting extract is then subjected to chromatography using an adsorptive resin, and subsequently concentrated or powdered as necessary. <P>COPYRIGHT: (C)2003,JPO |
