Title:
藍葉エキス製造方法
Document Type and Number:
Japanese Patent JP5933525
Kind Code:
B2
Abstract:
An object of the present invention is to provide a tryptanthrin-containing indigo-plant leaf extract particularly suitable for application to the skin. The present invention provides a method for producing a tryptanthrin-containing indigo-plant leaf extract, the method comprising filtering a mixture of a concentrated ethanol extract of indigo-plant leaves and a polyhydric alcohol, and collecting the filtrate. The present invention further provides an indigo-plant leaf extract produced by this method.
Inventors:
Takeshi Kusakari
Kentaro Yamashita
Kentaro Yamashita
Application Number:
JP2013504760A
Publication Date:
June 08, 2016
Filing Date:
March 14, 2012
Export Citation:
Assignee:
Sunstar Inc.
International Classes:
A61K36/70; A61K8/97; A61K31/502; A61P17/00; A61P31/10; A61P37/08; A61Q17/04; A61Q19/00; A61Q19/10
Domestic Patent References:
| JP2005281253A | 2005-10-13 | |||
| JP2001031581A | 2001-02-06 |
Foreign References:
| WO2006126675A1 | 2006-11-30 | |||
| WO2006126675A1 | 2006-11-30 |
Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office