コロソリン酸高含有バナバ葉抽出物の製造方法
- 专利权人:
- 株式会社東洋新薬
- 发明人:
- 高垣 欣也,森 千尋,木村 宜仁,吉田 尚明
- 申请号：
- JP2004075394
- 公开号：
- JP4922550B2
- 申请日:
- 2004.03.16
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a method for producing a banaba (Lagerstroemia speciosa) leaf extract containing corosolic acid by &ge9 mass % based on its dried mass.
SOLUTION: This method for producing a banaba leaf extract containing corosolic acid by &ge9 mass % based on its dried mass comprises a process of obtaining crude extract liquid by extracting the banaba leaves with an aqueous solution containing 60-100 vol. % ethanol, a process of obtaining a treated liquid having an increased corosolic acid content by treating the obtained crude extract liquid with 10-20 mass % activated carbon based on 100 pts. mass dried banaba leaf mass, and a process of separating the precipitate in the concentrated liquid obtained by concentrating and recovering the precipitated material.
COPYRIGHT: (C)2005,JPO&NCIPI
- 来源网站：
- 中国工程科技知识中心
