We started the investigation of red beetroot (Beta
vulgaris) peel constituents by characterizing chemical
compounds of fractionated red beetroot peel extract.
Several betacyanins (betanin, prebetanin, isobetanin,
and neobetanin), p-coumaric acid, ferulic acid, and
traces of unidentified flavonoids were found (Kujala et
al., unpublished results).