The genotypic variation of the antioxidant potential of different tomato varieties
- 1 September 2005
- journal article
- research article
- Published by Taylor & Francis Ltd in Free Radical Research
- Vol. 39 (9), 1005-1016
- https://doi.org/10.1080/10715760400022293
Abstract
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.Keywords
This publication has 5 references indexed in Scilit:
- Tomatoes and Cardiovascular HealthCritical Reviews in Food Science and Nutrition, 2003
- Occurrence of Flavonols in Tomatoes and Tomato-Based ProductsJournal of Agricultural and Food Chemistry, 2000
- The polyphenolic content of fruit and vegetables and their antioxidant activities. What does a serving constitute?Free Radical Research, 1999
- Peroxynitrite Scavenging by FlavonoidsBiochemical and Biophysical Research Communications, 1997
- Inhibition of Peroxynitrite-Mediated Tyrosine Nitration by Catechin PolyphenolsBiochemical and Biophysical Research Communications, 1997