Influence of different thermohygrometric conditions on changes in instrumental texture properties and phenolic composition during postharvest withering of Corvina winegrapes (Vitis vinifera L.).

Fabrizio Torchio, L. Rolle, S. Giacosa, S. Río Segade, R. Ferrarini, F. Torchio, V. Gerbi

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

16 Citazioni (Scopus)

Abstract

'Corvina' winegrapes were postharvest withered under three controlled thermohygrometric conditions. Sampling was done on different days of withering and the mechanical properties, technological ripeness parameters, phenolic composition, and anthocyanin profile were determined. Depending on the condition, skin break force and pedicel detachment force significantly decreased during the dehydration process with a maximum variation of -0.258 and -1.306 N, respectively. Instead, total flavonoids of skin and seeds, and proanthocyanidins and low-weight flavanols of seeds increased, with a maximum variation of +1,483, +733, +1,022, and +469 mg/kg, respectively. The skin hardness was confirmed to be an important parameter for the dehydration kinetics.
Lingua originaleEnglish
pagine (da-a)549-564
Numero di pagine16
RivistaDrying Technology
Volume31
DOI
Stato di pubblicazionePubblicato - 2013

Keywords

  • Controlled thermohygrometric conditions
  • Instrumental texture analysis
  • Phenolic composition
  • Postharvest withering
  • cv. Corvina (Vitis vinifera L.)

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