42 documents found, page 1 of 5
Fourier transform infrared spectroscopy in monitoring the wine production
Thanasi, Vasiliki; Catarino, Sofia; Ricardo-da-Silva, Jorge M.Review; 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-tra...
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...
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...
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; 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...
Volatile and sensory characterization of white wines from three minority Portug...
Piras, Simone; Brazão, João; Ricardo-da-Silva, Jorge M.; Anjos, O.; Caldeira, IldaEste trabalho centrou-se na caracterização sensorial e da composição volátil de vinhos brancos produzidos a partir de três castas minoritárias, designadamente ‘Malvasia’ (Colares), ‘Verdelho’ e ‘Galego Dourado’. A caracterização ocorreu por meio de análise sensorial e por cromatografia gás líquido de alta resolução, e os resultados obtidos foram analisados através de análise multivariada, que permitiu avaliar a...
Use of oak and cherry wood chips during alcoholic fermentation and the maturati...
Nunes, Inês; Correia, Ana C.; Jordão, António M.; Ricardo-da-Silva, Jorge M.There is a lack of knowledge about the use of di erent wood species on rosé wine production. Thus, this work focused on the impact of the addition of wood chips from oak and cherry trees during the alcoholic fermentation and maturation process on rosé wine characteristics. Therefore, phenolic composition and sensory characteristics were monitored during the rosé wines’ production. The use of wood chips during a...
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...
Mechanical pruning and soil fertilization with distinct organic amendments in v...
Botelho, Manuel; Cruz, Amândio; Ricardo-da-Silva, Jorge M.; Castro, Rogério; Ribeiro, HenriqueThe effects of fully mechanized pruning systems on physiology, vigor and yield of grapevines have been studied for more than forty years and are an interesting way to reduce production costs. Organic amending of vineyard soil is a way to increase vine productivity. Thus, this study aims to understand the effects of the interaction between these two practices, on vine growth and productivity. Two trial fields we...