The influence of vineyard on wines was evaluated for the first time using a broader analytical approach: sensory analyses and several analytical techniques (gas chromatography-mass spectrometry (GC-MS), GC flame ionization detection (FID), GC-olfactometry-Osme technique (GC-O-Osme), GC × GC-MS), taking into account odoriferous compounds of Cabernet Sauvignon wines. Sensory attributes were correlated to the concentration of volatiles and also to favorable climate/solar exposition, less clayey/lower organic matter soil, and lower vegetative growth of one out of five vineyards, C1. Among 30 coelutions in GC-MS, 12 involved some of the odoriferous volatiles and GC × GC-MS was required to elucidate their identities. Higher concentrations of ethyl propanoate and diacetyl (related with red fruits/aromatic intensity) and of acetoin (aroma of dry fruits, but coeluted with octanal in first dimension (1D), which presents green odor) were found in C1 wine. It was also correlated with positive appearance attributes, gustatory persistence, body, smell and taste harmony, as well as with higher concentrations of phenolic acids, anthocyanins, flavonols, stilbenes, and flavanols.

Os vírus são capazes de induzir desordens metabólicas e estruturais nas células vegetais, as quais podem variar com a espécie viral e a suscetibilidade da planta. Neste enfoque, videiras (Vitis vinifera) com e sem sintomas de infecção viral, das cvs. Cabernet Franc e Cabernet Sauvignon, em dois vinhedos comerciais, foram avaliadas comparativamente quanto ao potencial fotossintético (fotossíntese de saturação luminosa, radiação de saturação, ponto de compensação de luz, taxa de respiração no escuro, rendimento quântico aparente, clorofilas total, a e b), quanto ao metabolismo de carbono foliar (açúcares solúveis totais e amido) e quanto a qualidade enológica da uva produzida (sólidos solúveis totais - ºBrix, densidade, pH e acidez total titulável no mosto - ATT; intensidade total da cor e índice de polifenóis totais na casca). Nas plantas sintomáticas foram detectados o Grapevine leafroll-associated virus 2 (GLRaV-2) e o Rupestris stem pitting-associated virus (RSPaV) pelo teste ELISA para seis vírus, os quais provocaram reduções significativas na clorofila e no potencial fotossintético, em ambas as cultivares. As folhas de plantas infectadas também apresentaram acúmulos significativos de carboidratos, caracterizando um bloqueio no transporte de carbono desses órgãos. Quanto à qualidade enológica da uva, no momento da colheita as plantas infectadas apresentaram uvas com nível de maturação significativamente menor, considerando todos os parâmetros tecnológicos do mosto (ºBrix, densidade, pH, ATT e polifenóis). De modo geral, destaca-se que estes vírus podem comprometer diretamente a capacidade produtiva e a qualidade da produção destas cultivares.

Viruses may induce metabolic and structural disarray in plant cells to varying degrees depending on viral species and plant susceptibility. With this focus, grapevine plants (Vitis vinifera) cvs. Cabernet Franc and Cabernet Sauvignon, symptomless and showing symptoms of virus-infection, in two commercial vineyards were comparatively analyzed. The parameters were: 1. photosynthetic potential (light-saturated rate of photosynthesis, saturating light intensities, light compensation point, dark respiration rate, apparent quantum yield, chlorophyll a and b); 2. foliar carbon metabolism (total soluble sugars and starch), and 3. enologic quality of the produced grapes (total soluble solids - ºBrix, density, pH and titerable total acidity in the must; total color intensity and total polyphenols in berry skins) were recorded. In symptomatic plants Grapevine leafroll-associated virus 2 (GLRaV-2) and Rupestris stem pitting-associated virus (RSPaV) have been detected by ELISA carried out for six viruses. The virus infections induced significant reductions in chlorophyll content and in photosynthetic potential of both cultivars. Leaves of infected plants also showed significant accumulation of carbohydrates, suggesting a blockage of carbon transport out of these tissues. Concerning the enologic quality and based on technological parameters of the must (ºBrix, density, titerable total acidity and polyphenols), grapes of infected plants showed at harvest a significantly lower level of maturation. These viruses directly affect the productive capacity as well as the quality of the grapes produced by these cultivars.

Apresenta-se neste trabalho pesquisa científica que levou à modelagem de um sistema de informação para o registro de dados de rastreabilidade destinado à indústria do vinho, segundo os conceitos de uma arquitetura computacional orientada a serviços (service oriented architecture, SOA). Desde 2005, a manutenção de tais registros é obrigatória para todos os produtores que pretendem exportar para países da União Europeia. Ademais, os consumidores finais, inclusive brasileiros, preocupados com a segurança alimentar, apresentam demanda crescente por informações. Buscou-se uma solução que contemple a indústria coletivamente, por meio de consórcios ou associações de produtores, diluindo custos e compartilhando benefícios. A partir do levantamento bibliográfico realizado e de contatos com pesquisadores e representantes do setor produtivo vinícola brasileiro, em Bento Gonçalves -RS, pesquisaram-se tópicos de tecnologia da informação ligados ao tema, além de detalhes sobre o processo produtivo do vinho. A partir de um modelo do processo produtivo do vinho sugerido pelos autores, empregou-se a Unified Modeling Language (UML), para a modelagem do sistema, que utiliza a tecnologia de web services para o tráfego de dados. Com um protótipo funcional, constataram-se a viabilidade do modelo e a possibilidade de sua utilização em outros domínios.

The purpose is to present a scientific research that led to the modeling of an information system which aimed at the maintenance of traceability data in the Brazilian wine industry, according to the principles of a service-oriented architecture (SOA). Since 2005, traceability data maintenance is an obligation for all producers that intend to export to any European Union country. Also, final customers, including the Brazilian ones, have been asking for information about food products. A solution that collectively contemplated the industry was sought in order to permit that producer consortiums of associations could share the costs and benefits of such a solution. Following an extensive bibliographic review, a series of interviews conducted with Brazilian researchers and wine producers in Bento Gonçalves -RS, Brazil, elucidated many aspects associated with the wine production process. Information technology issues related to the theme were also researched. The software was modeled with the Unified Modeling Language (UML) and uses web services for data exchange. A model for the wine production process was also proposed. A functional prototype showed that the adopted model is able to fulfill the demands of wine producers. The good results obtained lead us to consider the use of this model in other domains.