天胡荽與兩面針葉部抽取出精油成分之比較研究

Comparison on the Essential Oil Constituents from Hydrocotyle sibthorpioides Lam. and Leaves of Zanthoxylum nitidum (Roxb.)

本研究旨在探討由天胡荽與兩面針葉部抽取出之精油成分及收油率之差異性， 在天胡荽部分共抽取出精油成分三十四種；而由兩面針葉部部分共抽取出精油成分 二十四種，其中兩者均有得到的精油成分有八個： β-Elemene 、 β-Ionone 、 α-Humulene、β-Bisabolene、β-Caryophyllene、α-Selinene、Caryophyllene oxide 和 Phytol；而兩者經處理後以水蒸汽蒸餾帶出揮發精油，得其之中性精油其平均收油 率（V％）分別為 0.211﹪和 0.046﹪。

The purpose of this research was to compare the constituents of essential oil extracted from Hydrocotyle sibthorpioides Lam. and leaves of Zanthoxylum nitidum (Roxb.), respectively. First, thirty-four essential oil compounds from the extract of the Hydrocotyle sibthorpioides (Lam.) and twenty-four essential oil compounds from the extract of the leaves of Zanthoxylum nitidum (Roxb.) were identified, respectively. The constituents from the essential oil of both plants contained the same eight compounds： β-Elemene、β-Ionone、α-Humulene、β-Bisabolene、β-Caryophyllene、α-Selinene、 Caryophyllene oxide and Phytol. The essential oil was extracted from both plants by steam distillation, and the amount (V%) of the neutral essential oil collected was about 0.211% and 0.046%, respectively.