ウュン(Curcumalonga L.)はショウガ科に属し,台湾,東インド,インドネシアおよび南米などで主に栽培 され,古くから健胃。利胆,利尿および軽度の鎮痛作用" を有する生薬として利用されており,また天然食用色 素としても広範に用いられている。その主成分は curcumin であり,薬理作用としては抗菌作用9 および利胆作 用り を有している. ウュン中の curcumin の定量については,デンシトメトリー法りおよびホウ酸による比色法? が報告されてい るが,精度および簡便性の面から満足できる方法ではない 著者らは高速液体クロマトグラフィー (HPLC)を用いて,ウコン中の curcumin£の精度のよい定量法を確立 するとともに,ウュンエキスの調製法とエキス中の curcumin の含量について若干の知見を得た.

Curcumalonga L. belongs to the Zingiberaceae family and is mainly cultivated in Taiwan, East India, Indonesia, and South America. It has been known as a healthy stomach since ancient times. It is used as a herbal medicine with choleretic, diuretic and mild analgesic effects, and is also a natural food color. It is also widely used as a raw material. Its main component is curcumin, and its pharmacological effects include antibacterial action9 and choleretic action. It has a purpose.Densitometry and colorimetric methods using boric acid have been reported for the determination of curcumin in feces. However, it is not a satisfactory method in terms of accuracy and simplicity. The authors established an accurate method for quantifying curcumin in turmeric using high performance liquid chromatography (HPLC). At the same time, we obtained some knowledge about the preparation method of Unn extract and the content of curcumin in the extract.