Geschmack ist vorhersagbar: Mit FlavorMiner. FlavorMiner heißt das Tool, das IPB-Chemiker und Partner aus Kolumbien jüngst entwickelt haben. Das Programm kann, basierend auf maschinellem Lernen (KI), anhand der…
Seit Februar 2021 bietet Wolfgang Brandt, ehemaliger Leiter der Arbeitsgruppe Computerchemie am IPB, sein Citizen Science-Projekt zur Pilzbestimmung an. Dafür hat er in regelmäßigen Abständen öffentliche Vorträge zur Vielfalt…
Anh, N. T. H.; Sung, T. V.; Arnold, N.; Wessjohann, L.;Chemical constituents of Zizyphus sativa Gaertn fruits. Part III - AlkaloidsVietnam J. Chem.45237-240(2007)
Two alkaloids have been isolated from Z. sativa fruits besides butane-2,3-diol and glycerol. The structures of alkaloids were established as stepharine and 1,2-dimethoxy,5,6,6a,7-tetrahydro-4H-dibenzo-quinoline by using MS, NMR spectroscopic data and by comparison with reported data.
Publikation
Anh, N. T. H.; Sung, T. V.; Wessjohann, L.;Chemical constituents of Zizyphus sativa Gaertn fruits. Part II - Triterpenoid acidVietnam J. Chem.45110-113(2007)
Three terpenoid acids have been isolated from an ethyl acetate extract of Z. sativa fruits. Their structures were established as betulinic, oleanolic and maslinic acids by means of MS, NMR spectroscopic data and by comparison with reported data.
Publikation
Thuy, T. T.; Franke, K.; Porzel, A.; Wessjohann, L.; Sung, T. V.;Quaternary protoberberine alkaloids from Stephania rotundaVietnam J. Chem.44259-264(2006)