Hydrolytical instability of hydroxyanthraquinone glycosides in pressurized liquid extraction.

ABSTRACT: Hydroxyanthraquinones represent a group of pharmacologically active compounds characteristic for plants of the Rumex and Rheum genera. These compounds in the human intestine act as laxative compounds. As they cause the greatest side effects and are often abused by the public, their accurate analysis in plants and plant-derived laxatives is much needed. To isolate compounds from plants, pressurized liquid extraction (PLE) is frequently applied. The technique has been regarded, so far, as very effective, even in isolation of sensitive compounds for which exposure time in high temperature has a negative impact. This work demonstrates some interesting and surprising results accompanying PLE of hydroxyanthraquinones from the Rumex crispus L. root using methanol/water mixtures as extractant. The

SUBMITTER: Wianowska D 

PROVIDER: S-EPMC3992226 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature