Sunday, 6 January 2013
Essential Oil Distillation notes
http://shirleyprice.blogspot.co.uk/2012/12/frankincense-essential-oil.html. There is a lot of confusion about frankincense but that should clear it up and point folk in the right direction of further reading and research.
On the first/second/third distillation issue this is probably a confusion you will sometimes see online with the process of steam distilling a single oil Ylang Ylang (Dr R. Pappas). Ylang Ylang oil is a favourite with the perfume and natural perfume trade as it is used to capture the rather unruly fragrance of the citrus oils and to echo the aroma of jasmine. That is why the oil is fractionated. Ylang “Complete” is the outcome of a single distillation with no parts taken off to form Ylang Extra, Ylang 1, Ylang 2 and Ylang 3 so Ylang “Complete” is the oil preferred for aromatherapy.
As you may know water is recirculated for a second ‘go’ at distillation to produce Rose Otto because some rose oil components are fairly water soluble.
In practice distillers keep distilling for as long as economic quantities of oils come over as the fuel is costly. So in a frankincense the hydrodistillation can last 2hours, 4 hours six hours or 12 hours according to what you are working with and seeking however with the exception of Rose Otto we are always talking a single distillation.
There are many reasons why organically grown essential oils are preferred but not everyone is prepared to pay the slightly higher cost for the organic certification. Nor does every company welcome the idea of external inspection of what they are saying and doing!
Dr Robert Pappas. "My websites are at http://www.essentialoils.org (which has the largest online database for the chemical composition of essential oils and its completely free) and http://www.facebook.com/EssentialOilUniversity my sites are all about information and education in essential oils. Starting January 10th I will be teaching The Chemistry of Essential Oils at Indiana University which is the only class of its kind in the country for college credit. If anyone here is in New Albany, Indiana area then stop by IUS one night and give us a visit."