RT Journal Article
SR Electronic
T1 Mechanical Behavior of Winegrapes under Compression Tests
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 323
OP 329
DO 10.5344/ajev.2008.59.3.323
VO 59
IS 3
A1 Letaief, Hend
A1 Rolle, Luca
A1 Gerbi, Vincenzo
YR 2008
UL http://www.ajevonline.org/content/59/3/323.abstract
AB Grape texture analyses were performed at ripeness on seven grapevine varieties (Barbera, Brachetto, Cabernet Sauvignon, Dolcetto, Freisa, Nebbiolo, and Pinot noir) collected during the 2004 and 2005 seasons in Piedmont, northwestern Italy. Different compression tests were applied on whole berry, skin, and seed and mechanical indices were estimated. Univariate and multivariate statistical analysis were applied to differentiate the varieties and to determine the main sources of variability present in the data sets. The texture indices in the grape characterization depended on variety and harvest season. Moreover, texture profile analysis (TPA) was the most appropriate test for grape differentiation.