Analysis of the volatile organic compounds from leaves, flower spikes, and nectar of Australian grown Agastache rugosa

BMC Complementary and Alternative Medicine

Edwin Pang¹  Paul D Morrison¹  Nitin Mantri¹  Hanaa Yamani¹ 

[1] School of Applied Sciences, Health Innovations Research Institute, RMIT University, Melbourne 3000, Victoria, Australia

关键词: GC–MS;    Nectar;    Volatile Organic Compounds;    HS-SPME;    Estragole;    Agastache rugosa;   

Others  :  1084751
DOI  :  10.1186/1472-6882-14-495

 received in 2014-04-22, accepted in 2014-12-10,  发布年份 2014

【 摘 要 】

Background

The foraging choices of honey bees are influenced by many factors, such as floral aroma. The composition of volatile compounds influences the bioactivity of the aromatic plants and honey produced from them. In this study, Agastache rugosa was evaluated as part of a project to select the most promising medicinal plant species for production of bioactive honey.

Methods

Headspace solid-phase microextraction HS-SPME /GC-MS was optimized to identify the volatile bioactive compounds in the leaves, flower spikes, and for the first time, the flower nectar of Australian grown A. rugosa.

Results

Methyl chavicol (= estragole) was the predominant headspace volatile compound in the flowers with nectar, flower spikes, and leaves, with a total of 97.16%, 96.74% and 94.35%, respectively. Current results indicate that HS–SPME/GC–MS could be a useful tool for screening estragole concentration in herbal products.

Conclusion

Recently, estragole was suspected to be carcinogenic and genotoxic, according to the European Union Committee on Herbal Medicinal Products. Further studies are needed on safe daily intake of Agastache as herbal tea or honey, as well as for topical uses.

【 授权许可】

   
2014 Yamani et al.; licensee BioMed Central.

【 图 表 】

Figure 1.

Figure 2.

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