Tinkturenpresse

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Simaroubaceae -  "Chinese: 苦樹 ku shu, Japanese: ニガキ nigaki "bitterwood"

The bark is used in herbal medicine as a bitter flavouring and antibacterial agent. Extracts from the wood are also used as a natural insecticide in organic farming." [[http://en.wikipedia.org/wiki/Picrasma_quassioides]]


"...said to have a strong insecticidal action and antibacterial action. It is used as a bitter stomachic." 
[[http://ja.wikipedia.org/wiki/%E3%83%8B%E3%82%AC%E3%82%AD]]


"The plant Picrasma quassioides (D. Don) Benn. is widely distributed over Asia and most areas of mainland China. In China, P. quassioides was falsely identified as Rhus ailanthoides Bunge, P. ailanthoides (Bunge) Planchon., and P. japonica A. Gray., and was recently revised. P. quassioides is one of the important sources of Chinese traditional folklore medicine. The bark of this plant, known as Ku-Mu-Pi (named by its strong bitter taste) in Chinese traditional folklore medicine, is used as a vermicide and an antibacterial....\\
Five new quassinoids, named picraqualides A+E, together with eleven known ones, nigakilactone E, nigakilactone F, kusulactone, javanicin U, 12-norquassin, quassin, 2,3-didehydropicrasin B, nigakilactone B, nigakilactone C, picrasin B, and simalikalacton C, were isolated from the EtOH extract of the bark of Picrasma quassioides." [Five New Quassinoids from the Bark of Picrasma quassioides. Sheng-Ping Yang, and Jian-Min Yue, Helvetica Chimica Acta, Vol. 87, 2004, 1591-1600]