Studies of Chinese Crude Drug "Ge-gen". (II). Collection Season and Differences of Components.
10.3937/kampomed.53.503
- VernacularTitle:葛根の研究 （ＩＩ） 採集時期と含有成分の多寡
- Author:
Masayuki MIKAGE
;
Mitsue MATSUMURA
;
Shihoko TAKAHASHI
- Publication Type:Journal Article
- Keywords:
Ge-gen (Kakkon);
Puerariae radix;
chemical components;
seasonal variation;
Chinese herbal medicine
- From:Kampo Medicine
2002;53(5):503-507
- CountryJapan
- Language:Japanese
-
Abstract:
In the previous paper, the authors have investigated a Chinese crude drug Ge-gen, the root of Pueraria species of the family Leguminosae, and concluded that it should be collected in the early summer for medical use. This is a report of the differences in the content of the constituents between Ge-gen harvested in the summer and in the winter. Yields of water extract of winter Ge-gens were generally higher, while no significant difference was recognized in the content of starch and flavonoids, such as puerarin and daidzin. Starch content varies widely with the stock, and that of the same stock did not show significant difference between the summer root and the winter one.
