Effect of variety and water supply on phytochemical (phenolics and carotenoids) content and composition of processing tomato
2013
Helyes, L. | Neményi, A. | Pék, Z. | Berki, M. | Daood, H.G.
As the most important bioactive compounds, carotenoids (mainly all trans and cis lycopene), and poly-phenols (neochlorogenic acid, chlorogenic acid, caffeic acid, ferulic acid, gallic acid, quercertin, rutine, katechin, naringin) were analysed for their content in tomato fruits in 2010. The content and composition of carotenoids were found to be affected, to a considerable extent, by varietal factor and water supply. The content of all carotenoids in different tomatoes from different varieties and treatments ranged from 36.2 to 76.9 mg kg-1. This is nearly a twofold difference. We found significant differences among the average carotenoids content of water supply treatments and varieties. The optimum water supply treatment gave a significantly higher proportion of lycopene than the control (rainfed) treatment (89 and 80%, respectively) in case of Brixsol F1 variety. Content of total poly-phenols measured in Strombolino F1 (cherry type) was significantly higher than that found in the Brixol F1 (normal type). In the growing season of 2010, the optimum water supply treatment resulted in a significantly lower content of total polyphenols.
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