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vitex_doniana_sweet [2019/12/17 22:44] (aktuell)
andreas angelegt
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 +Vitex doniana Sweet - syn.Vitex cienkowskii Kotschy & Peyr.; Vitex cuneata Thonn. - Lamiaceae \\
 +black plum
 +
 +Deciduous tree, up to 20-25m tall, native to the tropical Africa (savanna), cultivated also as ornamental and for food; crown rounded, ĺeaves palmately divided, 3-7 leaflets, mostly 5 with the lower leaflets distinctly smaller; leaflets obovate, leathery, dark green above, paler below; flowers blue, violet or white, the lower lobe darker; fruit ellipsoid, fleshy, hairless, purple-black,​ edible (used as food, tasting a bit like prunes -  hence the name). \\
 +[[https://​www.zimbabweflora.co.zw/​speciesdata/​species.php?​species_id=148880]] \\
 +[[http://​tropical.theferns.info/​viewtropical.php?​id=Vitex+doniana]]
 +
 +"A comparative analysis of the aroma potencies of the free and bound volatile fractions revealed that; free fraction exhibited strong potency for the fruity and floral notes, and the bound fraction produced more of the flowery, caramel-like and cherry-like notes. In addition results of odour activity values showed that ethylbutanoate,​ β-damascenone,​ ethyl-2-methyl propionate, linalool, hexyl acetate and (Z)-rose oxide contributed highly to the sweet prune-like aroma of the fruit... \\
 +In the free fraction of the sweet black plum, the major aroma-active compounds (>300 µg kg−1) were linalool, 2-phenylethanol,​ 3-methyl-but-3-en-1-ol,​ ethyl cinnamate, ethylbutanoate,​ hexyl acetate, methyl octanoate, methyl hexanoate, ethyl-2-methylpropionate,​ geraniol, and (Z)-3-hexen-1-ol... \\
 +The major volatile compounds in the bound fraction of the Vds were; 4-hydroxy-β-ionol,​ guaiacol, gamma-jasmolactone,​ 4-hydroxy-2,​5-dimethyl-3(2H)-furanone,​ acetophenone,​ linalool and 3-methyl-but-3-en-1-ol."​ \\
 +[Lasekan, Ola. "​Identification of the aroma compounds in Vitex doniana sweet: free and bound odorants."​ Chemistry Central Journal 11.1 (2017): 19] \\
 +[[https://​link.springer.com/​article/​10.1186/​s13065-017-0247-7]]
 +
 +
 +{{http://​www.westafricanplants.senckenberg.de/​images/​pictures/​vitex_doniana_20-4-07_plath00030_1661_9fb846.jpg}} \\
 +Vitex doniana fruits, photographer:​ Paul Latham, 2007, Congo, Kisantu Botanic Garden \\
 +[[http://​www.westafricanplants.senckenberg.de/​root/​index.php?​page_id=14&​id=1661]] \\
 +Brunken, U., Schmidt, M., Dressler, S., Janssen, T., Thiombiano, A. & Zizka, G. 2008. West African plants - A Photo Guide. www.westafricanplants.senckenberg.de. - Forschungsinstitut Senckenberg,​ Frankfurt/​Main,​ Germany.
  
vitex_doniana_sweet.txt · Zuletzt geändert: 2019/12/17 22:44 von andreas