PROBLEM TO BE SOLVED: To eliminate the need for chemicals for pretreatment in concentrated extract extraction.SOLUTION: This invention is characterized in that distillation time can be adjusted, thus making it possible to control the extract concentration.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】濃縮エキス抽出で下処理での薬品を不必要としたのである【解決手段】蒸留時間が調整出来るためにエキス濃縮濃度をコントロールする事を可能ならしめたのが特徴とする【選択図】図2