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agathosma_betulina_berg._pillans [2016/05/08 10:03] andreas |
agathosma_betulina_berg._pillans [2017/09/16 11:09] andreas |
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+ | The qualitative sensory evaluation of the thiolacetates give strong and fruity odour impressions (trans-compounds more intensive than the cis-isomers). \\ | ||
[Stereoisomeric flavour compounds. Part LVII: The stereoisomers of 3‐Oxo‐p‐menthane‐8‐thiol acetate, simultaneously stereoanalysed with their corresponding thiols., Köpke, T., Schmarr, H.G., Mosandl, A., Flavour and fragrance journal, Vol.7(4), 1992, 205-211] | [Stereoisomeric flavour compounds. Part LVII: The stereoisomers of 3‐Oxo‐p‐menthane‐8‐thiol acetate, simultaneously stereoanalysed with their corresponding thiols., Köpke, T., Schmarr, H.G., Mosandl, A., Flavour and fragrance journal, Vol.7(4), 1992, 205-211] | ||
- | {{:buchu_ingr2.jpg|}} \\ | + | | {{:pulegone.jpg| pulegone |
- | left: pulegon; center left: isomenthon | + | |
"The chemical composition of three different buchu essential oils which were derived from Agathosma betulina, A. crenulata and an A betulina x crenulata hybrid respectively (fam. Rutaceae) was investigated by means of chromatographic and spectroscopic methods. Approximately 40 compounds, all known, were detected. A. betulina was characterized by 31% of (iso)menthone, | "The chemical composition of three different buchu essential oils which were derived from Agathosma betulina, A. crenulata and an A betulina x crenulata hybrid respectively (fam. Rutaceae) was investigated by means of chromatographic and spectroscopic methods. Approximately 40 compounds, all known, were detected. A. betulina was characterized by 31% of (iso)menthone, | ||
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"The essential oils of Agathosma betulina, A. crenulata and their hybrids were analyzed to determine whether the taxa could be distinguished by their monoterpene chemistry. Pulegone was found to be the key component for identification of the oils. A. betulina is identified by a pulegone content of 2.4% to 4.5%, the hybrids have 7.6% to 27.8% and A. crenulata has 31.6% to 73.2% pulegone. A. betulina and the hybrids have a higher content of 8-mercapto-p-menthan-3-one than 8-acetylthio-p-menthan-3-one while, the reverse is true for A. crenulata. The cis-8-mercapto-p-menthan-3-one content is higher than that of the trans- isomer for A. betulina and die hybrids, but the reverse is true for A. crenulata. Two A. betulina chemotypes were identified. The Diosphenol chemotype is characterized by high ϕ-diosphenol (>10%) and diosphenol (>12%), and low isomenthone (31%) and low ϕ-diosphenol..." | "The essential oils of Agathosma betulina, A. crenulata and their hybrids were analyzed to determine whether the taxa could be distinguished by their monoterpene chemistry. Pulegone was found to be the key component for identification of the oils. A. betulina is identified by a pulegone content of 2.4% to 4.5%, the hybrids have 7.6% to 27.8% and A. crenulata has 31.6% to 73.2% pulegone. A. betulina and the hybrids have a higher content of 8-mercapto-p-menthan-3-one than 8-acetylthio-p-menthan-3-one while, the reverse is true for A. crenulata. The cis-8-mercapto-p-menthan-3-one content is higher than that of the trans- isomer for A. betulina and die hybrids, but the reverse is true for A. crenulata. Two A. betulina chemotypes were identified. The Diosphenol chemotype is characterized by high ϕ-diosphenol (>10%) and diosphenol (>12%), and low isomenthone (31%) and low ϕ-diosphenol..." | ||
[Chemotaxonomy of commercial buchu species (Agathosma betulina and A. crenulata)., | [Chemotaxonomy of commercial buchu species (Agathosma betulina and A. crenulata)., | ||
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+ | "The indigenous Khoi-San people of the Western Cape have used Agathosma betulina, (better known as buchu) the focus of this study, for many years (Jodamus 2003). It has been well documented that the Khoi people used it for almost everything, from stomach ailments to moisturizing their skins. More recently, due to its commercialization, | ||
+ | [SANBI Red List of South African Plants, 2017] [[http:// | ||
The dried or fresh leaves of buchu are used as diuretic, diaphoretic and stimulant tonic. "Buchu is widely used and has a great reputation for treaing kidney and urinary tract diseases, for the symptomatic relief of rheumatism, ans also for ecternal application on wounds and bruises (in folk medicine as buchu vinegar). Buchu is an excellent tonic and is used to treat minor digestive disturbances. Buchu leaf and oil are important flavour components in herbal teas and food products." | The dried or fresh leaves of buchu are used as diuretic, diaphoretic and stimulant tonic. "Buchu is widely used and has a great reputation for treaing kidney and urinary tract diseases, for the symptomatic relief of rheumatism, ans also for ecternal application on wounds and bruises (in folk medicine as buchu vinegar). Buchu is an excellent tonic and is used to treat minor digestive disturbances. Buchu leaf and oil are important flavour components in herbal teas and food products." | ||
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[The biological activity and essential oil composition of 17 Agathosma (Rutaceae) species., Viljoen, A.M., Moolla, A., Van Vuuren, S.F., Van Zyl, R.L., Hüsnü, K., Baser, C., Trinder-Smith, | [The biological activity and essential oil composition of 17 Agathosma (Rutaceae) species., Viljoen, A.M., Moolla, A., Van Vuuren, S.F., Van Zyl, R.L., Hüsnü, K., Baser, C., Trinder-Smith, | ||
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Köhler, F.E., Medizinal Pflanzen, vol.3, t.63 (1890) \\ | Köhler, F.E., Medizinal Pflanzen, vol.3, t.63 (1890) \\ | ||
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