RP‐HPLC detection of a sulphiting‐induced artefact from paeoniflorin in dried roots of <i>Paeonia lactiflora</i>

Abstract

Paeoniflorin is one of the bioactive ingredients of the roots of Paeonia lactiflora (Paeoniaceae). A comparative study of processed and non-processed commercial samples of dried roots of P. lactiflora indicated a very low level of paeoniflorin in the processed sample and the formation of a new more polar component, sodium paeoniflorin sulphonate, during treatment of the roots with sulphiting agents.