Extraktionsverfahren zur Aufklärung flüchtiger Wirkstoffe von Pflanzen

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Abstract
An extraction method is described by which volatile active substances from plants can be isolated carefully and concentrated by way of the gas phase. In this way it is possible to isolate the protective substances of the bird cherry (Prunus padus) from leaves, buds and cortex and to identify them as benzaldehyde and hydrocyanic acid. The leaves of the mountain ash (Sorbus aucuparia) also give off hydrocyanic acid when crushed.