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--- aspalathus_linearis_n.l.burm._r.dahlgr [2018/05/01 08:50] – andreas
+++ aspalathus_linearis_n.l.burm._r.dahlgr [2024/07/23 13:24] (aktuell) – andreas
@@ Zeile 7: / Zeile 7: @@
 "The main medicinal use of rooibos tea is as a milk substitute for babies who are prone to cholic." \\
 [Medicinal Plants of the World. Ben-Erik Van Wyk and Michael Wink, Pretoria 2004, 59]
+"Used as a herbal beverage by the indigenous Khoi people since the late 1700s... Aside from
+the tea after infusing creating a deep natural red color with a full flavor and body, this herbal tea is caffeine free, has a low tannin content - estimated at 3% in the leaves, is high in antioxidant activity... \\
+[Marnewick, Jeanine L. „Rooibos and honeybush: recent advances in chemistry, biological activity and pharmacognosy.“ African Natural Plant Products: New Discoveries and Challenges in Chemistry and Quality. ACS Symposium Series. Vol. 1021. 2009]  [[http://port-trading.com/wp-content/uploads/2010/08/newsletter1.pdf]]
+Samples of traditional rooibos tea were vacuum steam distilled/solvent extracted for analysis. The major components of the extract were shown to be [[http://en.wikipedia.org/wiki/Guaiacol|guaiacol]] (24%), 6-methyl-3,5-heptadien-2 one isomer (5.2%), damascenone (5%), geranylacetone (4.2%), 2-phenylethanol (4.1%) and 6-methyl-5-hepten-2-one (4%)." \\
+[Habu, Tsutomu, et al. "Volatile components of rooibos tea (Aspalathus linearis)." Journal of Agricultural and Food Chemistry 33.2 (1985): 249-254]
+|{{:3mercaptohexanol.png}} \\ 3-mercaptohexanol \\ //(grapefruit, tropical fruit, fresh)// | {{:guaiacol.jpg| guaiacol}} \\ guaiacol |{{:damascenone.jpg| β-damascenone}} \\ β-damascenone | {{:phenylethanol.jpg| 2-phenylethanol}} \\ 2-phenylethanol |
 The high-impact chemical 3-sulfanylhexan-1-ol, with its unique scent of grapefruit and tropical fruits, is also an important trace constituent of 'red tea' (rooibos tea).\\
 [Meaningful Scents around the World, R.Kaiser, 2006, 69]
+Main components of the volatile extracts (SDE/DRP) of rooibos tea were: isolongifolol, vanillin, octanoic acid, nonanoic acid, tridecanoic acid, phenol, eugenol, 4-vinylphenol, dihydroactinidiolide, methyl cinnamate, heptalactone, and N-methylacetamide. Olfactory interesting minor components were e.g. benzyl alcohol, furfural, benzaldehyde, anisaldehyde, acetophenone, β-damascenone, β-ionone, guaiacol, isoeugenol, and indole. \\
+[Song, Nho-Eul, et al. "Analysis of volatile compounds in rooibos tea (Aspalathus linearis) using different extraction methods and their relationship with human sensory perception." Food Research International 141 (2021): 109942]
+----
 "Most of the individual flavonoids and other phytochemical constituents of rooibos and honeybush are found either exclusively in one or the other plant, i.e. flavan-3-ols, flavones, dihydrochalcones, proanthocyanadins and phenolic acids are predominantly found in rooibos while isoflavones, coumestans, inositols and xanthones predominate in honeybush. Eriodictyol and luteolin are the only individual components identified to date that are common to both plants." \\
 [A review of the bioactivity of South African herbal teas: rooibos (Aspalathus linearis) and honeybush (Cyclopia intermedia). McKay, Diane L., and Jeffrey B. Blumberg., Phytotherapy Research Vol.21(1), 2007, 1-16]
-"Used as a herbal beverage by the indigenous Khoi people since the late 1700s... Aside from
-the tea after infusing creating a deep natural red color with a full flavor and body, this herbal tea is caffeine free, has a low tannin content - estimated at 3% in the leaves, is high in antioxidant activity... \\ previously 99 and 218 volatile components were reported in the vacuum steam distillate and headspace vapor of traditional rooibos... [[http://en.wikipedia.org/wiki/Guaiacol|guaiacol]] (24%), 6-methyl-3,5-heptadien-2 one isomer (5.2%), damascenone (5%), geranylacetone (4.2%), β-phenylethyl alcohol (4.1%) and 6-methyl-5-hepten-2-one (4%) comprises the major volatile components." \\
-[Marnewick, Jeanine L. „Rooibos and honeybush: recent advances in chemistry, biological activity and pharmacognosy.“ African Natural Plant Products: New Discoveries and Challenges in Chemistry and Quality. ACS Symposium Series. Vol. 1021. 2009]  \\
-[[http://port-trading.com/wp-content/uploads/2010/08/newsletter1.pdf]]
-{{:aspalathus_linearis.jpg?700}}\\
+{{:aspalathus_linearis.jpg}}\\
 Aspalathus linearis (N.L.Burm.) R.Dahlgr., Clanwilliam, Westkap, Südafrika
 [[http://creativecommons.org/licenses/by-sa/2.5/|CC BY-SA 2.5]], Author: Amrum   [[https://commons.wikimedia.org/wiki/File:Rooibos_(Aspalathus_linearis).jpg|Wikimedia Commons]]