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Carotenoid and phenolic profile of tomato juices processed by high intensity pulsed electric fields compared with conventional thermal treatments

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Issue date
2009
Author
Odriozola Serrano, Isabel
Soliva-Fortuny, Robert
Hernández-Jover, Teresa
Martín Belloso, Olga
Suggested citation
Odriozola Serrano, Isabel; Soliva-Fortuny, Robert; Hernández-Jover, Teresa; Martín Belloso, Olga; . (2009) . Carotenoid and phenolic profile of tomato juices processed by high intensity pulsed electric fields compared with conventional thermal treatments. Food Chemistry, 2009, vol. 112, núm. 1, p. 258-266. https://doi.org/10.1016/j.foodchem.2008.05.087.
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Abstract
The effect of high intensity pulsed electric fields (HIPEF) processing (35 kV/cm for 1500 ls of overall treatment time with bipolar pulses of 4-ls at 100 Hz) and heat pasteurisation (90 C for 30 s or 60 s) on carotenoids and phenolic compounds as well as on some quality attributes (pH, soluble solids and colour parameters) of tomato juice was evaluated and compared, having the untreated juice as a reference. Processing enhanced some carotenoids (lycopene, b-carotene and phytofluene) and the red colour of juices, whereas no significant changes in phenolic compounds, pH and soluble solids were observed between treated and untreated juices. A slight decrease in overall health-related compounds was observed over time, with the exception of some carotenoids (b-carotene and phytoene) and caffeic acid. However, HIPEF-processed tomato juices maintained higher content of carotenoids (lycopene, neurosporene and c-carotene) and quercetin through the storage time than thermally and untreated juices. Hence, the application of HIPEF may be appropriate to achieve not only safe but also nutritious and fresh like tomato juice.
URI
http://hdl.handle.net/10459.1/58688
DOI
https://doi.org/10.1016/j.foodchem.2008.05.087
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Food Chemistry, 2009, vol. 112, núm. 1, p. 258-266
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  • Publicacions de projectes de recerca del Plan Nacional [2953]

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