Corvina winegrapes were postharvest withered under three controlled thermohygrometric conditions. Sampling was done at 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 +1483, +733, +1022 and +469 mg/kg, respectively. The skin hardness was confirmed as an important parameter for the dehydration kinetics.

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

ROLLE, Luca Giorgio Carlo;GIACOSA, SIMONE;RIO SEGADE, SUSANA;TORCHIO, FABRIZIO;GERBI, Vincenzo
2013

Abstract

Corvina winegrapes were postharvest withered under three controlled thermohygrometric conditions. Sampling was done at 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 +1483, +733, +1022 and +469 mg/kg, respectively. The skin hardness was confirmed as an important parameter for the dehydration kinetics.
31
549
564
Postharvest withering, Phenolic composition, Controlled thermohygrometric conditions, Instrumental texture analysis, cv Corvina (Vitis vinifera L.)
L. ROLLE; S. GIACOSA; S. RÍO SEGADE; R. FERRARINI; F. TORCHIO; V. GERBI
File in questo prodotto:
File Dimensione Formato  
58 - 2013 DT - Influence of different thermohygrometric conditions on changes in instrumental texture properties and phenolic composition during postharvest withering of Corvina winegrapes.pdf

non disponibili

Tipo di file: PDF EDITORIALE
Dimensione 319.83 kB
Formato Adobe PDF
319.83 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
58 A - 2013 DT - Influence of different thermohygrometric conditions on changes in instrumental texture properties and phenolic composition during postharvest withering of Corvina.pdf

embargo fino al 02/04/2014

Tipo di file: POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione 1.2 MB
Formato Adobe PDF
1.2 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/121951
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 17
  • ???jsp.display-item.citation.isi??? 17
social impact