| abstract |
A physiologically active extract comprising an ethylnacetate-soluble ingredient of an indigo plant, which is obtainablenby soaking a raw indigo plant in an organic solvent used fornextraction. The ethyl acetate-soluble ingredient includesntryptanthrin, 3,5,4'-trihydroxy-6,7-methylenedioxy-flavone,nkaempferol, 3,5,7,4'-tetrahydroxy-6-methoxy-flavone, gallic acid,ncaffeic acid, indirubin, pheophorbide a, and methylpheophorbidena. |