Erythrocyte antioxidant protection of rose hips (Rosa spp.)

C. Widén*, A. Ekholm, M.D. Coleman, S. Renvert, K. Rumpunen

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Rose hips are popular in health promoting products as the fruits contain high content of bioactive compounds. The aim of this study was to investigate whether health benefits are attributable to ascorbic acid, phenols, or other rose-hip-derived compounds. Freeze-dried powder of rose hips was preextracted with metaphosphoric acid and the sample was then sequentially eluted on a C18 column. The degree of amelioration of oxidative damage was determined in an erythrocyte in vitro bioassay by comparing the effects of a reducing agent on erythrocytes alone or on erythrocytes pretreated with berry extracts. The maximum protection against oxidative stress, 59.4 ± 4.0% (mean standard deviation), was achieved when incubating the cells with the first eluted meta-phosphoric extract. Removal of ascorbic acid from this extract increased the protection against oxidative stress to 67.9 ± 1.9% . The protection from the 20% and 100% methanol extracts was 20.8 ± 8.2% and 5.0 ± 3.2% , respectively. Antioxidant uptake was confirmed by measurement of catechin by HPLC-ESI-MS in the 20% methanol extract. The fact that all sequentially eluted extracts studied contributed to protective effects on the erythrocytes indicates that rose hips contain a promising level of clinically relevant antioxidant protection.

Original languageEnglish
Article number621579
Number of pages8
JournalOxidative Medicine and Cellular Longevity
Volume2012
DOIs
Publication statusPublished - 17 Aug 2012

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Oxidative stress
Ascorbic Acid
Methanol
Hip
Antioxidants
Erythrocytes
Health
Catechin
Bioassay
Phenols
Reducing Agents
Fruits
Powders
Fruit
Oxidative Stress
Insurance Benefits
Biological Assay
High Pressure Liquid Chromatography
metaphosphoric acid

Bibliographical note

Copyright © 2012 C. Widén et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cite this

Widén, C. ; Ekholm, A. ; Coleman, M.D. ; Renvert, S. ; Rumpunen, K. / Erythrocyte antioxidant protection of rose hips (Rosa spp.). In: Oxidative Medicine and Cellular Longevity. 2012 ; Vol. 2012.
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Erythrocyte antioxidant protection of rose hips (Rosa spp.). / Widén, C.; Ekholm, A.; Coleman, M.D.; Renvert, S.; Rumpunen, K.

In: Oxidative Medicine and Cellular Longevity, Vol. 2012, 621579, 17.08.2012.

Research output: Contribution to journalArticle

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