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The genotypic variation of the antioxidant potential of different tomato varieties

Spencer, J. P. E., Kuhnle, G. G. C., Hajirezaei, M., Mock, H. P., Sonnewald, U. and Rice-Evans, C. (2005) The genotypic variation of the antioxidant potential of different tomato varieties. Free Radical Research, 39 (9). pp. 1005-1016. ISSN 1071-5762

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To link to this article DOI: 10.1080/10715760400022293

Abstract/Summary

There is increasing interest in the ability of diets rich in polyphenols to modulate age-related diseases and promote healthy ageing. We have conducted a pilot experiment with eight tomato varieties to correlate the total antioxidant capacity of the tomato variants with the specific constituent flavonoids present. A strong correlation was observed with the flavonol rhamnoglucoside rutin but not with other flavonoids, such as naringenin chalcone, or hydroxycinnamates, such as chlorogenic, which are also present in the tomato. To test the rigor of this correlation a second study was undertaken with a further 37 tomato varieties selected for low, medium and high rutin levels. We show that the flavonol rutin contributes to the greatest extent to the antioxidant capacity of tomatoes and suggest that this flavonoid may be a useful target for up-regulation in tomatoes in order to improve their antioxidant status.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
Interdisciplinary centres and themes > Institute for Cardiovascular and Metabolic Research (ICMR)
ID Code:12970
Uncontrolled Keywords:antioxidant, flavonoid, tomato, rutin, teac, ms, low-density-lipoprotein, coronary-heart-disease, induced, lipid-peroxidation, induced cell-death, flavonoids protect, phosphatidylinositol 3-kinase, quercetin metabolites, phenolic, antioxidants, liquid-chromatography, dietary flavonoids, Antioxidants/*pharmacology, Chromatography, High Pressure Liquid, *Lycopersicon esculentum/chemistry/genetics, Mass Spectrometry/methods, Plant Extracts/chemistry/pharmacology, Rutin/genetics/isolation & purification/*pharmacology, Signal Transduction
Publisher:Informa

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