Saponine geh�ren zu den wichtigsten Naturstoffklassen. Es handelt sich um ein nichtfl�chtiges Glykosid. Es besteht aus einem fettl�slichen Aglykon, das entweder ein Triterpenoid oder ein Alkaloidsteroid ist. Der Aglykonteil ist kovalent an eine oder mehrere Monosaccharid-Zuckereinheiten gebunden. Saponine kommen in h�heren Pflanzen sowie in einigen Meerestieren vor. Sie sind neuartige bioorganische Komplexverbindungen. Saponine haben viele biologische Aktivit�ten, z. B. k�nnen sie den Serum-Blutzuckerspiegel bei Diabetikern senken, das schlechte Cholesterin sowie das Serum-Triacylglycerin senken und wirken antitumoral. Au�erdem k�nnen sie in einigen Getr�nken, wie z. B. Bier, zur Erzeugung von stabilem Schaum und in Waschmitteln verwendet werden. Saponine sind also in zahlreichen pharmakologischen Wirkmechanismen enthalten.

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