A series of plants of the Amaryllidaceae family (Galanthus woronowii A. Los., Galanthus krasnowii Hohrjakov, Galanthus caucasicus Bacer A. Grossheim, Galanthus latifolius Wor, Leucojum aestivum L., Stenbergia colchiciflora Waldst et Kit, Pancratium maritimum L., Crinum giganteum L., Narcissus tazetta L.), grown and introduced in Georgia, has been studied for their alkaloid composition. Alkaloids galanthamine, lycorine, tazettine, galanthine, galanthusine, demethylhomolycorine, and gemanthamine have been isolated and chemically characterized. The dynamics of galanthamine accumulation during vegetation has been studied. It is established that the content of galanthamine reaches maximum in bulbs at the end of the vegetation stage (except for L. aestivum, in which the maximum is reached at the beginning of vegetation). The bulbs should be harvested in the indicated vegetation periods. The plants of G. woronowii, G. krasnowii, N. tazetta, and L. aestivum species are recommended as raw materials for obtaining galanthamine hydrobromide.
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