Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9487421 | Food Research International | 2005 | 8 Pages |
Abstract
The aim of the present study was to assess the renal excretion of red beet juice (RBJ) antioxidants in six healthy humans. After a single oral dose of RBJ. The pharmacokinetic parameters obtained from urine were compared to those obtained after ingestion of water on an intra-individual basis. Urine was collected in intervals up to 24Â h post-intake. After RBJ ingestion, the betacyanins betanin and isobetanin were excreted in the volunteers' urine (0.28% of the administered dose) and unambiguously identified by HPLC-ESI-MS/MS. Compared to the ingestion of water, RBJ consumption resulted in a significantly increased urinary excretion of total phenolics (51.1% of the administered phenolics) and other antioxidant compounds (43.9% of the administered compounds) within 24Â h.
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Authors
M. Netzel, F.C. Stintzing, D. Quaas, G. StraÃ, R. Carle, R. Bitsch, I. Bitsch, T. Frank,