Les transformations des hétérosides anthroniques pendant le séchage des feuilles de Cassia senna et de Rhamnus frangula

J. Lemli; J. Cuveele

doi:10.1055/s-0028-1097457

Planta Med 1978; 34(7): 311-318
DOI: 10.1055/s-0028-1097457

Research Articles

Les transformations des hétérosides anthroniques pendant le séchage des feuilles de Cassia senna et de Rhamnus frangula

Recherches sur les drogues à principes anthraquinoniques XXXI.Transformation of anthroneglycosides by drying of the leaves of Cassia senna and Rhamnus frangula Investigation on anthraquinone drugs, XXXIJ. Lemli, J. Cuveele

Laboratoire de Pharmacognosie de l'Institut de Pharmacie, Katholieke Universiteit te Leuven, Belgique.

Abstract

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Abstract

The fresh leaves of Cassia senna (Senna) and of Rhamnus frangula contain only anthrone glycosides. By drying between 20° C and 50° C these anthronic derivatives are transformed into dianthrone forms (sennosides) in senna; in frangula however the anthrone forms are stable (glucofrangularosides). By raising the drying temperature from 50° C tot 100° C the content of total anthracene derivatives decreases progressively in senna; in frangula a glucose molecule is splitted off and mostly frangularoside is formed. These transformations are due to enzyme actions.

Key Word Index

Cassia senna - Rhamnus frangula - Anthroneglycosides - Dianthroneglycosides

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