桂皮油

我们采集了香港不同地区生长的一年生陆地草本植物、海洋植物和大气中的CO2进行14C测定，并与近年来中国广西地区采集的桂皮油样品测定结果作比较。

A variety of samples , such as terrestrial annual grasses , oceanic plants and atmospheric CO_2 from different areas of Hong Kong , have been collected . The ￣( 14 ) C activity of them was measured and compared with that of cassia oil samples from Guangxi , China .

将常用限量的紫苏油、桂皮油、苯甲酸、尼泊金乙酯等进行了抑菌力比较。

A comparison of bacteriostatic ability has been carried out among oleum of Perilla frutescens and Cinnamomum cassia , benzoic acid and nipagin A.

桂皮油中鉴定出32个化合物，反式-肉桂醛含量为80～92%，精油质量达甲级。

As the result , 32 compounds were identified in the bark oil , the major compo - nent is trans-cinnamic aldehyde ( 80-92 % ) .

松油和桂皮油由于具有芳香性气味，因而成为良好的成虫驱避剂，但是关于它们对蚊虫的杀幼虫作用研究不多。

The aromatic nature of pine and cinnamon oils has established them as good adult repellents but their larvicidal efficacy against mosquitoes has not been explored much .