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KMID : 1161420150180101173
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Journal of Medicinal Food
2015 Volume.18 No. 10 p.1173 ~ p.1178
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Effects of Industrial Processes on Antioxidant Power and Polyphenols Profile in Cherry Tomato Cultivar
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Tommonaro Giuseppina
De Prisco Rocco
Pergamo Rita
Iodice Carmine
Abbamondi Gennaro Roberto
Spagnuolo Annalisa
Nicolaus Barbara
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Abstract
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The antioxidant capacity and the polyphenolic profile of fresh and processed cherry tomatoes were analyzed with the aim of investigating the effect of industrial processes on the nutritional qualities of fruits. The results exhibited a decrease of antioxidant activity mainly in the lipophilic fraction of processed tomatoes compared with fresh products. No great difference in the antioxidant capacity was detected in the hydrophilic and methanolic extracts of fresh tomatoes and processed tomato juices. Moreover, a decrease of polyphenolic content, estimated by means of high-performance liquid chromatography analysis and Folin?Ciocalteu method, was observed in all tomato juices. The overall polyphenolic profile of both fresh and processed tomatoes did not change significantly and, among all juices, a higher polyphenolic content was detected in juice containing peels and seeds in comparison to those without. From our data on antioxidant power and the bioactive metabolite content, tomato juice could be used as a valid and easily available source of antioxidants in everyday diet to preserve human health.
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KEYWORD
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antioxidant capacity, cherry tomatoes, polyphenolic profile, tomato juice
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