| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a composition having high antioxidizing activity from bamboo grass and/or bamboo leaves as raw material. <P>SOLUTION: The method comprises the following procedure: From a lower aliphatic alcohol extract liquid from bamboo grass and/or bamboo leaves, the alcohol is evaporated and substituted by water followed by making a liquid/liquid partition with petroleum ether and/or diethyl ether and separating an aqueous layer liquid. Ethyl acetate is added to the aqueous layer liquid to make a liquid/liquid partition followed by separating an ethyl acetate layer liquid and an aqueous layer liquid. Then, the objective antioxidizing composition containing luteolin glycosides having antioxidizing activity such as luteolin 6-C-glucoside and luteolin 6-C-arabinoside and tricine is obtained from the respective aqueous layers, the ethyl acetate layer and/or the diethyl ether layer. <P>COPYRIGHT: (C)2007,JPO&INPIT |
