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

Journal article published in Drying Technology. 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…

Journal article published in Drying Technology, volume 31, pp. 549–564.

Authors: , , , , and .

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.

Key words: Postharvest withering, Phenolic composition, Controlled thermohygrometric conditions, Instrumental texture analysis, cv Corvina (Vitis vinifera L.)

BibTeX entry: click to show

@article{
	2318_121951,
	url = {https://hdl.handle.net/2318/121951},
	author = {Rolle, Luca and Giacosa, Simone and Río Segade, Susana and Ferrarini, Roberto and Torchio, Fabrizio and Gerbi, Vincenzo},
	title = {Influence of different thermohygrometric conditions on changes in instrumental texture properties and phenolic composition during postharvest withering of Corvina winegrapes (Vitis vinifera L.)},
	year = {2013},
	journal = {Drying Technology},
	volume = {31},
	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.},
	keywords = {Postharvest withering, Phenolic composition, Controlled thermohygrometric conditions, Instrumental texture analysis, cv Corvina (Vitis vinifera L.)},
	doi = {10.1080/07373937.2012.745092},	
	pages = {549--564}
}

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