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).

„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]

Vitex doniana fruits, photographer: Paul Latham, 2007, Congo, Kisantu Botanic Garden
Brunken, U., Schmidt, M., Dressler, S., Janssen, T., Thiombiano, A. & Zizka, G. 2008. West African plants - A Photo Guide. - Forschungsinstitut Senckenberg, Frankfurt/Main, Germany.

vitex_doniana_sweet.txt · Zuletzt geändert: 2019/12/17 22:44 von andreas