Invasive Species Compendium

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Abstract

Chemical examination of the essential oil from the leaves of Syzygium cuminii Skeels.

Abstract

The leaves of S. cuminii [S. cumini] contain 0.18% essential oil with a sweet aroma like raw mango. Physico-chemical constants and oil constituents (determined by GLC and TLC) are tabulated. The oil consisted of 59% hydrocarbons and 41% oxygenated derivatives. The major hydrocarbon compounds were myrcene (14.62%), β-phellandrene (8.7%), terpinolene (7.1%), γ-terpinene (5.7%), β-pinene (5.4%) and bornylene (3.6%). The oxygenated derivatives included eugenol (7.8%), α-terpineol (5.8%), cuminaldehyde (5.4%), methylcinnamate (5.01%) and borneol (3.3%). The oil could be used for flavouring; it polymerized if it was kept for a long period in light.