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Burseraceae - elemi, manila elemi, Manilaelemi
Tree, up to 35m high, native to the Philippines, common in primary forests at low and medium altitudes. http://www.biodiversitylibrary.org/page/40228553#page/634/mode/1up
„The tree secretes a soft white resin called Phillipine elemi, from which is borne out in the air and used as incense.“ http://de.wikipedia.org/wiki/Canarium_luzonicum
„Aromatic elemi oil is steam distilled from the resin. It is a fragrant resin with a sharp pine and lemon-like scent… Elemi resin is chiefly used commercially in varnishes and lacquers, and certain printing inks. It is used as a herbal medicine to treat bronchitis, catarrh, extreme coughing, mature skin, scars, stress, and wounds.“ http://en.wikipedia.org/wiki/Canarium_luzonicum
„Manila elemi oil, hydrodistilled from Manila elemi gum, was analysed by GC and GC–MS. Thirty-nine compounds constituting together 99.2% of the oil were identified, limonene being the most abundant (56%)… The other main components indentified were α-phellandrene (17.6%), elemol (6.3%), sabinene (5.7%), α-terpinolene (2.8%), elemicin (2.4%), and β-phellandrene (2.3%). An interesting feature of this oil is the occurence of phellanndrene dimers.
… oil kept in a colorless container …showed some significant changes. The relative percentages of limonene remained more or less the same… While the relative amounts of α-phellandrene and sabinene decreased almost by half, there was an approximately two-fold increase in the percentage amounts of elemol, elemicin, α-terpinolene and a number of minor compounds such as α-phellandrene dimer.“
[The composition of Manila elemi oil, Merle A. Villanueva, Rosalinda C. Torres, Kemal Hüsnü Can Başer, Temel Özek, Mine Kürkçüoǧlu, Flavour and Fragrance Journal, Vol.8(1), 2006, 35 - 37]