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Progress in Essential Oils

By: Brian M. Lawrence
Posted: June 24, 2011, from the July 2011 issue of P&F magazine.

Tarragon Oil
Tarragon (Artemisia dracunculus L.) is a perennial member of the Asteraceae (Compositae) family that can be found in North America, Europe, Northern Asia and Russia. there are three varieties known, e.g. A. dracunculus L. var. glauca, A. dracunculus L. var. dracunculus and A. dracunculus L. var. sativa. The latter of these varieties is sterile and is the source of French tarragon, which can only be reproduced by vegetative means.

Lemon Verbena Oil
Lamparsky (1985) reported that although he characterized isoneral and isogeranial and their corresponding alcohols in oils produced from fresh leaves of lemon verbena [Aloysia citriodora Palau syn. Aloysia triphylla (L'Herti.) Britt., Lippia citriodora (Ort.) H.B.K.], he believed that they were artifacts produced during oil isolation by steam distillation.



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