43 documents found, page 1 of 5
Pilot scale continuous pulsed electric fields treatments for vinification and s...
Silva, Filipa V.M.; Borgo, Riccardo; Guanziroli, Andrea; Ricardo-da-Silva, Jorge M.; Aguiar-Macedo, Mafalda; Redondo, LuisPulsed electric field (PEF) processing of white grapes (Arinto, Moscatel Graúdo also known as Moscatel de Setúbal) before pressing for must extraction (1.2 and 1.6 kV/cm) and before bottling for finished wine physical stabilization (10 kV/cm) was implemented in a pilot-scale winery to produce about 540 L of wine for each variety. PEF was applied at these two different stages of wine production, and its effects ...
Pilot scale continuous pulsed electric fields treatments for vinification and s...
Silva, Filipa V.M.; Borgo, Riccardo; Guanziroli, Andrea; Ricardo-da-Silva, Jorge M.; Aguiar-Macedo, Mafalda; Redondo, Luis M.Pulsed electric field (PEF) processing of white grapes (Arinto, Moscatel Graúdo also known as Moscatel de Setúbal) before pressing for must extraction (1.2 and 1.6 kV/cm) and before bottling for finished wine physical stabilization (10 kV/cm) was implemented in a pilot-scale winery to produce about 540 L of wine for each variety. PEF was applied at these two different stages of wine production, and its effects ...
Fourier transform infrared spectroscopy in monitoring the wine production
Thanasi, Vasiliki; Catarino, Sofia; Ricardo-da-Silva, Jorge M.The complexity of the wine matrix makes monitoring of the winemaking process from the grapes to the final product crucial for the wine industry. In this context, analytical methodologies that can combine good accuracy, robustness, high sample throughput, “green character”, and by preference real-time analysis, are on-demand to create high-quality vitivinicultural products. In the last years, Fourier-transform I...
Mechanical pruning and soil organic amending in two terroirs. Effects on wine c...
Botelho, Manuel; Ribeiro, Henrique; Cruz, Amândio; Duarte, Daniel F.; Faria, Diana L.; Khairnar, Kaushal S.; Pardal, Rafaela; Susini, MartaThe knowledge about the interaction between mechanical pruning and soil organic amending is still scarce. This study aimed to examine the effects of the interaction between these two practices on wine quality. Syrah grapes from two trial fields in Portugal subjected to two different pruning systems (mechanical pruning; hand spur pruning) and five different organic amendment treatments (control, biochar, municip...
Effect of barrel-to-barrel variation on color and phenolic composition of a red...
Pfahl, Leonard; Catarino, Sofia; Fontes, Natacha; Graça, António; Ricardo-da-Silva, Jorge M.Tangible variation of sensory characteristics is often observed in wine aged in similar barrels. Barrel-to-barrel variation in barrel-aged wines was investigated in respect of the most important phenolic compounds of oenological interest. A red wine was aged in 49 medium-toasted oak (Quercus petraea) barrels, from four cooperages, for 12 months. The resulting wines were evaluated for chromatic characteristics, ...
Mechanical pruning and soil organic amendments in vineyards of Syrah: effects o...
Botelho, Manuel; Ribeiro, Henrique; Cruz, Amândio; Martins, Miguel; Khairnar, Kaushal S.; Pardal, Rafael; Catarino, Sofia; Castro, RogérioThe interaction of mechanized pruning systems and soil organic amendment can affect vine vegetative and reproductive growth. However, since organic amendments supply several mineral elements, namely heavy metals, this study aimed to understand the effects of the interaction between these two practices on the mineral composition of wine. Two field trials were implemented in ‘Syrah’ vineyards in two Portuguese wi...
Mechanical pruning and soil organic amendments in vineyards of Syrah: effects o...
Botelho, Manuel; Ribeiro, Henrique; Cruz, Amândio; Duarte, Daniel F.; Faria, Diana L.; Castro, Rogério; Ricardo-da-Silva, Jorge M.Aim: The interaction of mechanized pruning systems and soil organic amendment can increase vine productivity. However, since the increase in p roductivity may affect grape composition, this study aimed to understand the effects of the interaction between these two practices. Methods and materials: Two field trials were implemented in Shiraz vineyards in two different wine regions. Mechanical hedge pruning was c...
DCMC as a promising alternative to bentonite in white wine stabilization. Impac...
Saracino, Francesco; Brinco, João; Gago, Diana; Silva, Marco Gomes; Ferreira, Ricardo Boavida; Ricardo-da-Silva, Jorge M.; Chagas, RicardoProtein haze in white wine is one of the most common non-microbial defects of commercial wines, with bentonite being the main solution utilized by the winemaking industry to tackle this problem. Bentonite presents some serious disadvantages, and several alternatives have been proposed. Here, an alternative based on a new cellulose derivative (dicarboxymethyl cellulose, DCMC) is proposed. To determine the effici...
Mechanical pruning in non-irrigated vineyards: effects on yield and grape compo...
Botelho, M.; Cruz, A.; Silva, E.B.; Mexia, A.; Ricardo-da-Silva, Jorge M.; Castro, R.; Ribeiro, HenriqueThe effect of mechanical pruning on vine performance and wine quality was evaluated from 2012 until 2015. Two trial fields, with a randomized complete block design, were established on already existing ‘Syrah’ vineyards in Quinta do Côro and Quinta do Gradil, located in Tejo and Lisboa wine regions respectively. Mechanical pruning (MEC) was simulated by trimming all shoots to a 15 cm square around the cordon. M...
Volatile and sensory characterization of white wines from three minoritary port...
Piras, Simone; Brazão, João; Ricardo-da-Silva, Jorge M.; Anjos, Ofélia; Caldeira, IldaThis work focused on the characterization of the volatile compounds and sensory profile of white wines produced from three minority grapevine varieties of Portugal namely ‘Malvasia’ (Colares), ‘Verdelho’ and ‘Galego Dourado’. The characterization took place using sensory and gas chromatography analysis. Furthermore, the data obtained were analysed through the use of multivariate analysis, which made it possible...