Melaleuca Myrtaceae

Oil of Qyeput. Cajuput oil cajeputi oil. Volatile od from fresh leaves and twigs of several varieties of Melaleuca Ieucadendron L, and other species of Melaleuca, Myrtaceae. Constit 50-60% eucalyptol (cineol) (-pinene, terpineol valeric, butyric, benzoic and other aldehydes. Toxicity P. M. Jenner et (., Food Cosmet Toxicol. 2, 327 (1964). 

Melaleuca (Myrtaceae) is a native genus of Australia and has found widespread use in medicinal and cosmetic purposes. Essential oils extracted by steam distillation from Melaleuca species are mostly composed of 1,8-cineole, a-pinene, P pinene, and terpinen-4-ol, and they possess antimicrobial and antioxidant properties. Melaleuca oil is a commercial name for oil extracted from leaves of Melaleuca armillaris Sm. with 1,8-cineole (85.8%) as main compound, followed by camphene and a-pinene as constituents also in major concentrations, but to a lower extent. This oil showed a better effect on radical scavenging in the ABTS than in the DPPH assay. Vitamin C was a reference with a higher antioxidant activity for ABTS and DPPH assays (Chabir et al., 2011). 

Butcher, P. A., Bell, J. C. and Moran, G. E. 1992. Patterns of genetic diversity and nature of the breeding system in Melaleuca altemifolia (Myrtaceae). Australian J. Bot. 40 365-375. 

Penfold, A. R., Morrison, F. R. and McKern, H. H. G. 1948a. studies in the Myrtaceae and their essential oils. Part I The seasonal variation in yield and cineole content of Melaleuca alterni-folia Cheel. Pages 5-7 in Researches on Essential Oils of the Australian Flora., Vol. I, Part I. Museum of Technology and Apphed Science, Sydney. 

Leucadenone A C33H32O7 540 Melaleuca leucadendron Myrtaceae Leaf 171... 

A series of very unusual flavanones has been detected in the genera Baeckea, Luma, and Melaleuca, all belonging to the family Myrtaceae (Table 15.7). The compounds are based on 6-C-methylpinocembrin with an unusual substituent at C-8, including a methylated phloroglucinol-based ring structure fused by a 6-carbon heterocyclic ring (which bears either... 

Tea tree oil is obtained by steam distillation of leaves and twig tips of Melaleuca alternifolia L., and other Melaleuca species, which are trees growing in Australia (Myrtaceae). It is a pale to light yellow liquid with an earthy, spicy odor. 

The essential oils from Melaleuca alternifolia (Myrtaceae) are recommended for many medicinal and cosmetic purposes. More than 100 varieties of Melaleuca are known, having considerable differences in their essential oil composition (Fig. 17.10). In order to standardise the essential oil quality, minimum and maximum conditions are given by DAC (Deutscher Arzneimittel-Codex) and ISO 4730 (1996). 

Yatagai et al. studied the essential oils of the leaves of six Melaleuca species (Myrtaceae), a well-known insect repellent plant [228]. The oil obtained from M. bracteata exhibited the strongest activity against D. pteronyssinus, killing all mites after 24 hours at the two doses tested (0.13 and 1.28 pg/cm2). M. argentea, M. dealbata and M. saligna showed mild... 

Tea tree Melaleuca alternifolia (Myrtaceae) fresh leaf 1.8... 

Both Australia and New Zealand have indigenous tea trees in the family Myrtaceae, which were reputedly used for brewing tea by Captain Cook. There is, however, no resemblance between real tea Camellia sinensis, Camelliaceae, and the taste or odor of these species. The Australian tea tree oil from Melaleuca alternifolia and other Melaleuca species has strong antimicrobial potential (see Lis-Balchin et al., 2000, for a review and references). 

Tea tree is a misleading name. Tea tree is the general name given to all melaleuca trees (of the family Myrtaceae), usually associated with Australia. The species Melaleuca alternifolia is the one producing the essential oil. Many chemotypes exist and standards set for composition may encourage adulteration. 

Artemisia maritima (Asteraceae), Salma lavandulaefolia (Lamiaceae), Eucalyptus globulus, E. spp., Melaleuca leucadendron (Myrtaceae) [oil], Alpinia, Curcuma (Zingiberaceae)... 

Platanic acid (triterpene) Melaleuca leucadendron, Syzygium claviflorum (Myrtaceae) PKC [anti-HIV]... 

Aniba sp. (Annonaceae), Canarium commune, C. indicum (Burseraceae), Croton nepetaefolius (Euphorbiaceae), Dalbergia spruceata, Monopteryx uauca (Fabaceae), Cymbopogon procerus (Poaceae), Melaleuca bracteata (Myrtaceae), Boronia pinnata (Rutaceae)... 

TEA TREE OIL, is distilled from the leaves of Melaleuca alternifolia (COK), family Myrtaceae. It contains a number of antibacterial terpenes, including 1, 8-cineole and terpinen 4-ol. A comparative clinical study of 5% Tea Tree oil and 5% benzoyl peroxide in acne patients for three months showed that... 

Oil of Niaoull. Volatile oi] from leaves of Melaleuca v tridiflora (Soland.) Gaertn., Myrtaceae. Constit About 65% cineol, about 30% terpineo], limonene and d-pinene combined. 

Terpinen-4-ol (+)-Terpinen-4-ol 70-71 (300 Pa) 48.3° 20126-76-5 2438-10-0 Melaleuca linariifolia (Myrtaceae) Eucalyptus australiana... 

Orlovich, D. A., Drinnan, A. N. andLadiges, P. Y. (1999). Floral development in Melaleuca and Callistemon (Myrtaceae). Australian Systematic Botany, 11,689-710. 

Tea tree oil is derived from leaves of Melaleuca alternifolia and M. linearifolia (Myrtaceae), native to the east coast of New South Wales. To meet the Australian standard for tea tree oil the terpinen-4-ol content must be at least 30% while that of the oxidised terpene 1,8 dneole must not exceed 15% (Williams et al. 1988). The chemo-types of tea tree oil from natural stands is genetically determined, so that all commercial plantations are started from seed known to be of the right chemotype. Other terpene constituents of tea tree oil are the alcohol a-terpineol, hydrocarbons a-pinene and (3-pinene, p-cymene and y-terpinene, and sesquiterpenes including the unique compound viridflorene (Penoel 1990). Terpenin-4-ol is also a major ingredient in marjoram—Marjorana hortensis (Lamiaceae). 

Cajuput Melaleuca leucanderulron L. Myrtaceae Leaf Wild LQ... 

Niaouli aurantium Melaleuca viridiflora Myrtaceae Leaf Cult/wild LQ... 

Essential oils were also found to be active against viruses. The tobacco mosaic virus, which is an important pest in agriculture, is weakly resistant to lemongrass essential oil (Chao et al., 2000). But also essential oil of Melaleuca alternifolia (Myrtaceae) resulted in less lesions caused by tobacco mosaic virus for at least 10 days (Bishop, 1995). 

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