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Sandei L.,SSICA Stazione Sperimentale per lIndustria delle Conserve Alimentari | Stingone C.,SSICA Stazione Sperimentale per lIndustria delle Conserve Alimentari | Morini E.,SSICA Stazione Sperimentale per lIndustria delle Conserve Alimentari | Zaccardelli M.,Cra Centro Of Ricerca Per Lorticoltura | And 3 more authors.
Acta Horticulturae | Year: 2015

Fruits and vegetables contain vitamins, minerals, and fiber and are an important source of bioactive compounds in the diet. In particular tomato, that comprises a significant part of the human diet, is known to be an important source of antioxidant compounds, such as lycopene, flavonoids and ascorbic acid. Numerous recent studies concerned the comparison between organic and conventional fresh tomato and its by-products, in order to demonstrate the positive effect of organic agricultural practices on antioxidants content. However, results about organic farming are not always consistent because of the lack of technical data and the differences between the two agricultural practices (soil, climate, etc.). The present work describes the results obtained from a 24-month research project called BioPomNutri (www.biopomnutri.it), in which organic and conventional tomatoes and relative processed tomato products, were compared with respect to their nutritional and qualitative characteristics. Two commercial cultivars ('Docet' Monsanto and 'Faraday' ISI Sementi - an elongated and a round prismatic type, respectively) were considered for this study; in particular fresh tomatoes, tomato puree and whole peeled tomatoes obtained from these cultivars were analyzed for °Brix, pH, Hunter color, Bostwick consistency, total acidity, total sugars and total solids, carotenoids, polyphenols and ascorbic acid contents. Data obtained from the experimentation pointed out a positive trend in regard with bioactive compounds in organic tomato, mainly in 2011; data partly confirmed in 2012 study. Moreover the statistical analysis (PCA) of qualitative and nutritional data permitted to distinguish fresh and processed tomatoes got from the two different agricultural practices.

Pernice R.,University of Naples Federico II | Parisi M.,Cra Centro Of Ricerca Per Lorticoltura | Giordano I.,Cra Centro Of Ricerca Per Lorticoltura | Pentangelo A.,Cra Centro Of Ricerca Per Lorticoltura | And 4 more authors.
Scientia Horticulturae | Year: 2010

Carotenoids and flavonoids are the main tomatoes antioxidants, having an important role for human health. This study investigates the effects of different water regime and of the industrial processing on the concentration of these compounds in tomato fruits and in tomato products. Two biotypes of Corbarini small tomatoes were cultivated in the Sarno valley (Salerno, Italy) using three different water regimes. A biochemical characterization of the fresh and of the corresponding canned products was performed. Results show that water regime influenced the antioxidant profile of tomato fruits, with marked differences between the two biotypes. Data obtained highlight that water regime markedly influenced the productivity and the quality of the tomatoes. Results also demonstrated that industrial process increased carotenoids content without causing a significant flavonoids degradation. © 2010 Elsevier B.V.

Zaccardelli M.,Cra Centro Of Ricerca Per Lorticoltura | Campanile F.,Cra Centro Of Ricerca Per Lorticoltura | Del Galdo A.,Cra Centro Of Ricerca Per Lorticoltura | Lupo F.,Cra Centro Of Ricerca Per Lorticoltura
Acta Agriculturae Scandinavica Section B: Soil and Plant Science | Year: 2012

Nitrogen-fixing efficiency is influenced by genetic combination of rhizobia strain/legume genotype. In this research, 48 rhizobia isolates from lentil (Lens culinaris Medik) were characterized for DNA polymorphism and assayed for their ability to improve, in open field, grain yield of lentil. By DNA polymorphism analysis, only four haplotypes were observed for Rhizobium isolates from lentil seeds, whereas a higher genetic variability was observed for Rhizobium isolates obtained from root-tubercles. The performance of the 11 rhizobia haplotypes was analysed in the field after inoculation on two Italian lentil ecotypes. Two isolates of rhizobia induced a significant improvement of grain yield (plus from 37% to 40% with respect to non-inoculated plants) on the Colfiorito ecotype, whereas no significant improvement of yield was obtained on Colliano. © 2012 Copyright Taylor and Francis Group, LLC.

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