Here is an often referred to, unique and useful chart my friend in Addis Ababa, Professor Ermias Dagne, compiled and posted on his website Aritiherbal.com a few years ago. Due to various issues it has rarely been accessible on his website.
Many have asked for such a comparative tool for the various types of Frankincense, so, here it is. Much more study and research needs to be done on these precious aromatic and medicinal oleoresins. Not only to accurately discern the many compounds they share and distinguish themselves by, how these compounds affect our physiology, or interact with other compounds and medication, but to deepen our understanding of the trees that bear them as important cultural, economic and ecological entities.
Seeing to the prosperity and well-being of the harvesters and clans that care for these trees in the wild, still seems the most direct and efficient method to preserve and tend to them. For this reason, “fair trade” products and practices shine for their effectiveness in balancing the resources of the world, and carry with them a clear message of benefit through conservation.
Fair trade practices establish direct relationships with the harvesters, assure us of the freshest and best quality products, support conservation in ways large organizations cannot, and ensure fair value on all sides.
Though world demand for these healing natural products is growing, I think the first step is to preserve what we have in nature. From there we can devise methods to expand the harvest in ways that maintain both cultural and ecological balance.
The lives of the harvester families and clans often centers around the production, harvest and sale of these aromatic oleoresins, and must be accounted for. They are the only stewards of these trees and have been for centuries. If trees are damaged or lost, that loss is personal and beyond mere financial inconvenience. These trees grow wild in the most remote regions as do these families and clans. They are dependent on each other, and these trees are integrated deeply in their social and cultural lives.
Onward to the chart. Courtesy of Prof. Ermias Dagne, Addis Ababa and Aritiherbal.com
There are six common Boswellia species whose resins are traded and these are:-
Extractability of resin: Table 1 shows extractability data using 500 grams of gum-resins of 4 frankincense species with four solvents
|Species name||Common name||
|B. papyrifera||Tigray-Type||90 mg/ 18%||360mg/70%||240mg/48%||275mg/54%|
|B. rivae||Ogaden Type||195 mg/ 39%||307mg/60%||287mg/57%||390mg/80%|
|93 mg/ 19%||370mg/74%||470mg/95%||220mg/45%|
|B. sacra||Beyo Hilary||88 mg/ 18%||315 mg/63%||325mg/65%||249mg/50%|
|B. frereana||Meydi Hilary||2 mg/ >0.5%||395mg/80%||386mg/77%||450mg/90%|
|B. frereana||Meydi 56-178P||0.5 mg >0.5%||495mg/99%||220mg/44%||490 mg/98%|