| Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung |
| melaleuca_alternifolia_cheel [2015/07/15 06:45] – andreas | melaleuca_alternifolia_cheel [2021/12/29 10:46] (aktuell) – andreas |
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| [[http://en.wikipedia.org/wiki/Melaleuca_alternifolia]] | [[http://en.wikipedia.org/wiki/Melaleuca_alternifolia]] |
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| The essential oil, obtained from the foliage and terminal branchlets by steam distillation, is used as antimicrobial and expectorant. [[http://en.wikipedia.org/wiki/Tea_tree_oil]] \\ | "As indicated by the title of the ISO standard, tea tree oil is rich in terpinen-4-ol, typically in the range of 35-42%. 1:8-cineole has also been noted as an important constituent, even though it rarely exceeds 5% in commercial oil. In the early days, 1:8-cineole was noted in order to distinguish the various chemotypes of tea tree oil available: low cineole (2-10%), high cineole (20-40%) and very high cineole (60%+). During the 1980s boom time, however, the cineole content of tea tree oil became an indicator of quality - the lower the better. Various reasons were given as to why cineole was supposedly detrimental to the oil, such as it being a skin irritant. This was despite much published information that cineole was not a skin irritant, including one report that named nearly all the components of tea tree oil other than cineole as being potential skin irritants. Slowly, the industry realised that terpinen-4-ol was the main indicator of antimicrobial activity, or at least up to levels of 40%. Interestingly, none of the individual components of tea tree oil, including |
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| "As indicated by the title of the ISO standard, tea tree oil is rich in terpinen-4-ol, typically in the range of 35-42%. 1:8-cineole has also been noted as an important constituent, even though it rarely exceeds 5% in commercial oil. In the early days, 1:8-cineole was noted in order to distinguish the various chemotypes of tea tree oil available: low cineole (2 – 10%), high cineole (20-40%) and very high cineole (60%+). During the 1980s boom time, however, the cineole content of tea tree oil became an indicator of quality – the lower the better. Various reasons were given as to why cineole was supposedly detrimental to the oil, such as it being a skin irritant. This was despite much published information that cineole was not a skin irritant, including one report that named nearly all the components of tea tree oil other than cineole as being potential skin irritants. Slowly, the industry realised that terpinen-4-ol was the main indicator of antimicrobial activity, or at least up to levels of 40%. Interestingly, none of the individual components of tea tree oil, including | |
| terpinen-4-ol, are as widely active as the whole oil." \\ | terpinen-4-ol, are as widely active as the whole oil." \\ |
| A typical gas chromatographic profile for Australian tea tree oil shows as components: α-pinene (1-6%), sabinene (trace-3.5%), α-terpinene (5-13%), limonene (0.5-4%), ρ-cymene (0.5-8%), 1,8-cineole (0-15%), γ-terpinene (10-28%), terpinolene (1.5-5%), terpinen-4-ol (30-48%), α-terpineol (1.5-8%), aromadendrene (trace-3%), ledene (trace-3%), δ-cadinene (trace-3%), globulol (trace-1%), viridiflorol (trace-1%). \\ | A typical gas chromatographic profile for Australian tea tree oil shows as components: α-pinene (1-6%), sabinene (trace-3.5%), α-terpinene (5-13%), limonene (0.5-4%), ρ-cymene (0.5-8%), 1,8-cineole (0-15%), γ-terpinene (10-28%), terpinolene (1.5-5%), terpinen-4-ol (30-48%), α-terpineol (1.5-8%), aromadendrene (trace-3%), ledene (trace-3%), δ-cadinene (trace-3%), globulol (trace-1%), viridiflorol (trace-1%). \\ |
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| | {{:melaleuca_alternifolia_flowers.jpg}}\\ |
| | Flowers and foliage of Melaleuca alternifolia |
| | [[https://creativecommons.org/licenses/by-sa/4.0/de/|CC BY-SA 4.0]], Author: Geoff Derrin [[https://commons.wikimedia.org/wiki/File:Melaleuca_alternifolia_flowers.jpg|Wikimedia Commons]] |
