Composition
Tea tree oil is defined by international standard ISO 4730 (2004) ("Oil of Melaleuca, Terpinen-4-ol type"), which specifies levels of 15 components which are needed to define the oil as "tea tree oil."
Among over 98 compounds contained in the oil, terpinen-4-ol is responsible for most of the antimicrobial activity.
| Component | Concentration |
|---|---|
| terpinen-4-ol | 30–48% |
| γ-terpinene | 10–28% |
| α-terpinene | 5–13% |
| 1,8-Cineole | 0–15% |
| α-terpinolene | 1.5–5% |
| α-terpineol | 1.5–8% |
| α-pinene | 1–6% |
| p-cymene | 0.5–8% |
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Famous quotes containing the word composition:
“Viewed freely, the English language is the accretion and growth of every dialect, race, and range of time, and is both the free and compacted composition of all.”
—Walt Whitman (1819–1892)
“Boswell, when he speaks of his Life of Johnson, calls it my magnum opus, but it may more properly be called his opera, for it is truly a composition founded on a true story, in which there is a hero with a number of subordinate characters, and an alternate succession of recitative and airs of various tone and effect, all however in delightful animation.”
—James Boswell (1740–1795)
“Since body and soul are radically different from one another and belong to different worlds, the destruction of the body cannot mean the destruction of the soul, any more than a musical composition can be destroyed when the instrument is destroyed.”
—Oscar Cullman. Immortality of the Soul or Resurrection of the Dead? The Witness of the New Testament, ch. 1, Epworth Press (1958)