Comparison of terpene components from flowers of &lt;i&gt;Artemisia annua&lt;/i&gt;

Zhan-Nan Yang,Zheng-Wen Yu,Shi-Qiong Zhu

doi:10.3329/bjp.v7i2.10815

Comparison of terpene components from flowers of <i>Artemisia annua</i>

Zhan-Nan Yang, Zheng-Wen Yu + Show 1 more

Open Access

https://doi.org/10.3329/bjp.v7i2.10815

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Abstract

Terpene constituents of essential oils obtained by steam distillation from Artemisia annua flowers at the pre-, full- and post-flowering stage was investigated by gas chromatography (GC) and gas chromatography-mass spectrometric detector (GC-MS). The aim was to evaluate change the biosynthesis pathway of terpenes at different flowering stages. The samples studied showed that main components of essential oils were monoterpenes hydrocarbons (48.11%) and oxygenated monoterpenes (41%) in the pre-flowerig, oxygenated monoterpenes (35.59%) and sesquiterpenes hydrocarbons (49.99%) in the full-flowerig, and oxygenated monoterpenes (29.59%), sesquiterpenes hydrocarbons (32.18%) and oxygenated sesquiterpenes (25.27%) in the post-flowering, respectively. The relative content of monoterpenes decreased from pre-flowerig to post-flowerig, while that of sesquiterpenes increased. The results indicated that the biosynthesis pathway of terpenes might be changed at different flowering at stages, while the change of content and composition of terpenes might be a self-adaptation of A. annua .

Highlights

Artemisia annua L. is an annual herb native of China, where it has been used in the treatment of fever and malaria for many centuries
In the present paper we report the analytical results of the essential oils at different flower developing stages
The flowers were separated from other capitula organs, leaves and stem of A. annua, and identified by Mr Rongchang Luo of Holley Natural Resource Exploiture Co

Summary

Introduction

Artemisia annua L. is an annual herb native of China, where it has been used in the treatment of fever and malaria for many centuries. The effect of flowering on terpenes content of A. annua flower essential oils at pre-, full- and post-flowering stage was investigated. In the present paper we report the analytical results of the essential oils at different flower developing stages.

Results

Conclusion