挥发油

The optimal process conditions for microwave extraction were: temperature 50℃, microwave radiation time 120 s, power of microwave radiation 600 w, under these conditions the yield of volatile oil in Heracleum hemsleyanum Diels reached 0.72%.

微波萃取的最佳条件为：反应温度为50℃，微波辐射时间120 s，微波辐射功率为600 W，牛尾独活挥发油的收率为0.72%。

Results The optimal process conditions for supercritical CO2 extraction were: the pressure of 25 MPa, the temperature at 45℃ and CO2 flowing rate at 20 L/h, under these conditions the yield of volatile oil in Heracleum hemsleyanum Diels reached 0.65%.

结果超临界CO2萃取最佳工艺条件为：萃取压力25 MPa，萃取温度45℃，CO2流量20 L/h，在此条件下牛尾独活挥发油的收率为0.65%。

Methods Compared the orthogonal test design of supercritical CO2 extraction and extracting volatile oil in Heracleum hemsleyanum Diels.assisted by microwave.

方法利用超临界CO2与微波辅助萃取牛尾独活挥发油。

ObjectiveTo study processing conditions of supercritical CO2 extraction volatile oils from Heracleum hemsleyanum Diels.

作者：张承红，陈虹，杨郭，刘燕超临界CO2萃取；，，牛尾独活，；，，挥发油，；，，正交设计实验

hexadecanoic acid,oleic acid and linoleic acid were the major constituents.

结论萝卜秦艽块根中挥发油的主要成分为烷烃类和有机酸及其酯类化合物，其中十六烷酸、油酸、亚油酸等成分含量较高。

ConclusionThe main components of essential oils are 2,4-bis(1,1-dimethylethyl) phenol (4.4%), tetradecanoic acid (6.96%), n-hexadecanoic acid (7.69%), 9,12-cctadecadienoic acid (6.37%), hexadecanoic acid-2-hydroxy-1- ethyl ester (4.79%) and octadecanoic acid-2-hydroxy-1- ethyl ester (4.77%), respectively.

结论阿给炭挥发油的主要成分为2，4-二树丁基苯酚（4.4％）、十四酸（6.96％）、n-十六酸（7.69％）、-9，12-十八碳二烯酸（6.37％）、软脂酸-2-羟基-1-羟甲基乙酯（4.79％）、硬脂酸-2-羟基-1-羟甲基乙酯（4.77％）。

Objective: To investigate Jiaohao aetherolea influence the immune hypofunction of mouse, which is induce by cyclophosphamide.

目的：探讨椒蒿挥发油对环磷酰胺所致功能低下小鼠免疫功能的影响。

The chemical composition of th essential oil from Illicium verum Hook.f.was determined by the means of GC-MS.

采用GC-MS对八角茴香挥发油的化学成分进行分析，其中反式茴香醚的含量最高。

OBJECTIVE To investigate the chemical constituents in the pericarp of Illicium temstroemioides.

厚皮香八角为八角科八角属植物，分布在我国的海南省，到目前为止，除了挥发油[1]之外，笔者未见到有关化学成分研究的文章。

VOCM has a protective effect on acute pleural effusion in rats induced by an intrapleural injection of Ca...

鹅不食草挥发油对角叉菜胶致大鼠急性胸膜炎有明显的保护作用。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。