English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Seeds of “Moroheiya” (C. olitorius) contain not only strophanthidin (SP) glycosides, but also digitoxigenin (DG) glycosides. In an earlier paper, we reported that SP glycosides were not detected in fresh “Moroheiya” (including green leaf, green stem, shoot and pod), which is ingested in Japan as a vegetable, in dried health tea products and in health food products. In this report we deal with analysis of DG glycosides in them.Methanol extracts of edible samples were hydrolyzed in methanol-0.3mol/L HCl (2:1) for 6 days at room temperature. A solution of the hydrolysate in a mixture of hexane-ethyl acetate (1:1) (2mL) was applied to a Bond Elut Silica cartridge. The eluate by 10mL of the solvent mixture was concentrated to dryness and the residue was redissolved in methanol (1mL). Then, 10μL of the solution was subjected to HPLC to determine DG at UV 220nm.Well-matured seeds and their pods contained DG glycosides at a concentration of 200 and 4μg/g, respectively, as DG. However, DG glycosides, as well as SP glycosides, were not detected in the edible samples.

Determination of Digitoxigenin Glycosides in “Moroheiya” (Corchorus olitorius) and Its Products by HPLC