摘要
The active metabolite in the post-harvested biomass of zinc （Zn） and cadmium （Cd） hyperaccumulator Sedum alfredii Hance from phytoextraction is of great interest in China. The current study demonstrates that a salidroside-type metabolite can be yielded from the Zn/Cd hyperaccumulator S. alfredii biomass by means of sonication/ethanol extraction and macroporous resin column （AB-8 type） isolation. The concentrations of Zn and Cd in the salidroside-type metabolite were below the limitation of the national standards.
