Antioxidant Activity and General Fruit Characteristics in Different Ecotypes of Corbarini Small Tomatoes

Abstract

Sixteen ecotypes of Corbarini small tomatoes were studied. The antioxidant activity was evaluated with the DMPD (N, N-dimethyl-p-phenylenediamine) method in the water-soluble fraction (S-AA) and with the ABTS [2, 2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid)] method in the water-insoluble fraction (I-AA). S-AA and I-AA were strongly related to each other, varying to a large extent between the ecotypes considered. They were also significantly correlated with fruit weight, total solids, and refractive index. The combination of the latter variables (by multiple regression analysis) accounted for 36% and 44% of the total variability of S-AA and I-AA, respectively. Moreover, when the ecotypes were subdivided according to their shape (round, pear-shaped, oval, and long), S-AA and I-AA were both significantly higher in round tomatoes and lower in the long ones. In conclusion, the antioxidant activity varies to a considerable extent between different ecotypes of Corbarini small tomatoes. These differences are related to shape and some other fruit characteristics.

Analysis of Phenolic and Flavonoids of Wild Ephedra Alata Plant Extracts by Lc/Pda and Lc/MS and Their Antioxidant Activity

“…Evaluation of AA is becoming increasingly relevant in the field of nutrition as it provides useful information with regard to health promoting and functional quality of raw materials whether they are fruits, vegetables, or medicinal plants (Scalfi et al (2000). This parameter accounts for the presence of efficient oxygen radical scavengers, such as phenolic compounds.…”

Effect of Origanum Oil and Vinegar on the Maintenance of Postharvest Quality of Tomato

“…Antioxidants prevent the accumulation of potentially damaging reactive oxygen species (ROS), which occur as [26]. Impacts of storage treatments on the antioxidative properties and products of tomato are of concern because tomato fruit is recognized to be particularly rich in several antioxidants such as Vitamin C, carotenoids (especially lycopene), Vitamin A plus some flavonoids and other phenolic compounds, and it protects the human body tissue against oxidative attacks [27,28]. It has long been recognized that naturally occurring substances in higher plants have antioxidant activity.…”

Tomato consumption and plasma lycopene concentration in people aged 65 y and over in a British national survey

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