| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1387826 | Carbohydrate Research | 2012 | 6 Pages |
Two new glucoside esters 1 and 2 were produced as stress metabolites in the fresh leaves of Portulaca oleracea, in response to abiotic stress elicitation by CuCl2. A new sugar ester (3) and two known compounds (4 and 5) were also isolated. Their structures were established by spectroscopic means. The antioxidative activities of stress metabolites and the related isolates were evaluated by DPPH assay. The results showed that new stress-driven adducts of monolignans and monoterpenes with a glucose bridge exhibited much stronger antioxidative activities than other compounds.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Two new glucoside esters from Portulaca oleracea were elicited by CuCl2. ► A new sugar ester and two known compounds were also isolated. ► Phenolics and monoterpenes with a glucose bridge showed higher antioxidative activities than their precursors.
