Development of methodology for the determination of organic acids in must, grape juice and wine by high performance liquid chromatography (HPLC).

2012

The Brazilian grape juice: market and prospects.

This article aims to analyze the market of Brazilian grape juice.

Analytical characteristics and discrimination of Brazilian commercial grape juice, nectar, and beverage.

The production and commercialization of Brazilian grape juice is increasing annually, mainly due to its typicality, quality, and nutritional value. The present research was carried out in view of the great significance of Brazilian grape juice for the grape and wine industry. The purpose of this study, therefore, was to assess its composition as well as the discrimination between grape juice and other beverages. Twenty four samples of whole, sweetened, and reprocessed grape juices, grape nectar, and grape beverage were evaluated. Classical variables were analyzed by means of physicochemical methods; tartaric and malic acids, by HPLC; methanol, by gas chromatography; minerals, by atomic absorption spectrophotometry. These products were discriminated by the Principal Component Analysis (PCA). Results show that whole and sweetened grape juices were discriminated from other grape products because they featured higher values of total soluble solids, tartaric and malic acids, most minerals, phenolic compounds, and K/Na ratio, whereas grape nectar and grape beverage presented higher values of ºBrix/titratable acidity ratio. Reprocessed juice was discriminated due to its higher concentrations of Li and Na and lower hue.

Production of Syrah wines in tropical conditions of Northeast Brazil.

Twenty years ago, in the Northeast Brazil, a tropical semi-arid area, the production of tropical wines from some Vitis vinifera L. cultivars started. In this region, it is possible to harvest two times a year, between April and December, and nowadays Syrah is the most cultivated wine grape. Research works about irrigation rnanagement in Syrah started in 2000 at Brazilian Agricultural Research Corporation (Embrapa). The aim of this paper is to introduce some characteristics about the region where Syrah grapevines is being cultivated under irrigation in Northeast Brazil, and to present some results obtained from field experiments as well as some grape and wine charcteristics already determined.

Characteristics of the vitiviniculture area in NE Brazil.

The aim of this paper is to introduce some characteristics about the region where syrah grapevines is being cultivated under irrigation in Northeast Brazil, and to present some results obtained from field experiments as well as some grape and wine characteristics already determined.

Climatic potential for viticulture in Central Chile.

2012

Current Situaion of Eurhizococcus brasiliensis (Hemiptera: Margarodidae) in Brazil.

2016

Marca coletiva dos vinhos finos de Santa Catarina, Brasil: uma estratégia alternativa.

Com a abertura da economia brasileira a partir de meados da década de 1990, o setor vitivinícola nacional passou a enfrentar uma forte concorrência externa, registrando-se taxas significativas de importações. No período de 2002-2010, o crescimento das importações de produtos vitivinícolas (vinhos, espumantes, vinhos licorosos, etc.), pelo mercado brasileiro foi de aproximadamente 183%. Portanto, de modo semelhante a outros setores do agro-negócio mundial, o setor vitivinícola tem se caracterizado pela crescente competição entre blocos econômicos, a qual tem sido marcada por um ambiente empresarial cada vez mais intenso em tecnologia e gestão. Diante deste cenário e da evidência de que, para competir neste mercado, é necessário uma performance diferenciada, em 2008, a Associação Catarinense dos Produtores de Vinhos Finos de Altitude - ACAVITIS, com o apoio institucional e financeiro do Serviço Nacional de Apoio a Micro e Pequena Empresa - SEBRAE-SC e, sob a coordenação técnica da Empresa Brasileira de Pesquisa Agropecuária - Embrapa Uva e Vinho e da Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - EPAGRI, implantou o projeto para criação da Marca Coletiva ACAVITIS (MCA), objetivando garantir qualidade e imagem diferenciada para seus produtos diante da concorrência. Em 2009, o registro da MCA foi protocolado junto ao Instituto Nacional de Propriedade Industrial - INPI e, na safra de 2011, serão certificados seus primeiros vinhos.

Determination of bioactive amines in tropical wines produced at Brazilian's Northeast.

The wine production in the region of the Sub-middle São Francisco river Valley has started there are few years ago.The region has a climate variability that allows to obtain two or three harvests per year, which influences significantly the composition of the grapes. This work aimed to evaluate the amount of amines present in white and red tropical wines produced in the Northeast of Brazil. The winemaking was done by the traditional method. After stabilizing the wines were bottled and then analyzed for the determination of the amines putrescine, spermidine and spermine, by thin layer chromatography (TLC). The harvests were in June (harvest I) and November (harvest II) 2009. The results showed that the edaphoclimatic conditions of the two harvests had significant influence (p> 0.05) on bioactive amines concentration, with high values for red wines. In addition, tropical wines from Sub-middle São Francisco river Valley showed adequate correlation between bioactive amines as compared to other wines in the world.