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Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung Nächste Überarbeitung Beide Seiten der Revision | ||
populus_nigra_l [2014/09/01 01:11] andreas |
populus_nigra_l [2015/06/13 11:39] 127.0.0.1 Externe Bearbeitung |
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- | Populus nigra L. - Salicaceae | + | Populus nigra L. - Salicaceae |
- | black poplar, **Schwarz-Pappel** | + | |
Deciduous tree, up to 10-25m high, native to the river banks of Europe; leaves nearly cordate; young branches round across; flowers at catkins (up to 12cm long), produced in early spring before the leaves, dioecious. | Deciduous tree, up to 10-25m high, native to the river banks of Europe; leaves nearly cordate; young branches round across; flowers at catkins (up to 12cm long), produced in early spring before the leaves, dioecious. | ||
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The sweet-cented exudate of fresh P.nigra buds is collected by bees as the basis of their genuine product [[http:// | The sweet-cented exudate of fresh P.nigra buds is collected by bees as the basis of their genuine product [[http:// | ||
- | " | + | "26 different compounds have been investigated experimentally for their sensitizing capacity in guinea pigs. 19 of these occur in propolis as well as in poplar bud exudates, and 14 of them are also found in balsam of Peru. 4 caffeates and benzyl isoferulate were found to be strong Sensitizers. 7 compounds were moderate, and 13 compounds showed only weak sensitizing potency. Methyl cinnamate was negative. Patch tests in 11 propolis-sensitive patients once more revealed 3-methyi-2-butenyl caffeate and phenylethyl caffeate as the major sensitizers." |
+ | [Propolis allergy (IV) Studies with further sensitizers from propolis and constituents common to propolis, poplar buds and balsam of Peru., Hausen, B.M., Evers, P., Stüwe, H.T., König, W.A., Wollenweber, | ||
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+ | " | ||
[GC-MS and HPLC analysis of phenolic acids extracted from propolis and from Populus nigra bud exudate. | [GC-MS and HPLC analysis of phenolic acids extracted from propolis and from Populus nigra bud exudate. | ||
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[Volatile compounds from leaf-buds of //Populus nigra// L.(Salicaceae). Jerković, Igor, and Josip Mastelić., Phytochemistry Vol.63(1), 2003, 109-113] | [Volatile compounds from leaf-buds of //Populus nigra// L.(Salicaceae). Jerković, Igor, and Josip Mastelić., Phytochemistry Vol.63(1), 2003, 109-113] | ||
- | Phenylethyl caffeate, benzyl ferulate and benzyl-trans-4-coumarate are the most characteristic compounds found in propolis from various geographic origin. \\ | + | Phenylethyl caffeate, benzyl ferulate and benzyl-trans-4-coumarate are characteristic compounds found in propolis from various geographic origin. \\ |
- | [Chemical composition and antimicrobial activity of European propolis. Hegazi, Ahmed G., F. K. Abd El Hady, F. A. Abd Allah., Zeitschrift fur Naturforschung C 55.1/2, 2000, 70-75] | + | [Chemical composition and antimicrobial activity of European propolis. Hegazi, Ahmed G., F. K. Abd El Hady, F. A. Abd Allah., Zeitschrift fur Naturforschung C 55.1/2, 2000, 70-75] |
[[http:// | [[http:// | ||
- | {{http:// | + | {{http:// |