| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for effectively producing refined peach (Prunus persica, BATSCH) resin as peach resin which has no peculiar foul odor, and to provide refined peach resin produced by the method. <P>SOLUTION: This method for producing the refined peach resin comprises a process of preparing an acid aqueous solution of coarse peach resin, and a process of heating the acid aqueous solution under reduced pressure. The refined peach resin having no peculiar foul odor can be obtained preferably by heating the acid aqueous solution of pH 2-5 at about 40-60°C under ≤120 kPa reduced pressure. <P>COPYRIGHT: (C)2010,JPO&INPIT |
