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The present research aimed to identify the volatile profle of sparkling wines from São Francisco Valley, which products will have soon the Geographical Indication requested by the producers. Volatile organic compounds from muscat, brut, brut rosé and demi-sec sparkling wines produced in the São Francisco Valley, located in the Caatinga region of Brazil, were extracted, separated and identifed using the HS-SPME/GC?MS technique. The results reached the identifcation of a total of 109 compounds, classifed in 13 chemical groups, being the main esters, terpenes, and alcohols. It was found that some compounds with expressive area are unique to each type of sparkling wine: a total of 23 in muscat, 9 in brut, 5 in brut rosé, and 4 in demi-sec. This suggests a strong association between the grape varieties and the technological processes of winemaking. The volatile profles of each commercial sparkling wine in the São Francisco Valley present possible chemical markers of typicity which can be used to distinguish the commercial wines from the region. Keywords Volatile compound · São Francisco Valley · Geographical indication · Typicality marker · Gas chromatography Made available in DSpace on 2022-08-08T13:19:39Z (GMT). No. of bitstreams: 1 s12161-022-02374-4.pdf: 1655844 bytes, checksum: 4b6c54a206ea1f5e49a5c5ea4429d3e9 (MD5) Previous issue date: 2022

Les vins tropicaux sont ceux produits dans les régions vitivinicoles où plusieurs cycles végétatifs de la vigne peuvent se produire par an, avec au moins une récolte annuelle. Les principaux facteurs qui contribuent à cette vitiviniculture en basses latitudes sont : des températures élevées tout au long de l'année, des précipitations modérées ou insuffisantes, un rayonnement solaire abondant et de l'eau disponible pour l'irrigation. Des cycles continus peuvent se produire, et c'est alors le producteur qui décide quand tailler et quand récolter, selon les saisons des pluies, les demandes du marché, la structure physique et les types de vins produits. Les vins tropicaux sont produits dans le Vale do São Francisco, au nord-est du Brésil, depuis plus de trente ans. La vitiviniculture pratiquée dans la région est l'une des plus technicisées au monde, car elle exige un haut degré de connaissances de la part des viticulteurs et des techniciens, en termes de manipulation du terrain, ainsi que des connaissances différentes des ?nologues lors de la vinification. La région produit des vins effervescents de muscat, des vins effervescents traditionnels secs et demi-sec, des vins rouges encore jeunes et de garde, et des vins blancs jeunes, en plus des vins communs (de table), plus récemment. Cet article présente les caractéristiques de cette vitiviniculture jeune et différenciée, par rapport à celle pratiquée dans les pays producteurs traditionnels, ainsi que les résultats des recherches menées dans la région au cours des quinze dernières années, en partenariat avec les domaines viticoles. Made available in DSpace on 2020-12-19T09:03:18Z (GMT). No. of bitstreams: 1 Vins-tropicaux-de-la-region-semi-aride-du-Bresil.pdf: 2113140 bytes, checksum: 7964eafb4d725d59ab22ce3e79200bb0 (MD5) Previous issue date: 2020

The need for rapid and low-cost methods has made consumer-based methodologies, such as check-all-that-apply (CATA), a reality in sensory science instead of the traditional tools, namely, descriptive analysis (DA). This research investigated how training, even short and simple, and reduction of panel size may affect the consumers evaluation of tropical red wines (Vitis vinifera L.). To achieve this goal, nine samples were characterized by DA with trained assessors (n = 8), CATA with consumers (n = 100) and CATA with semi-trained panelists (n = 30). The results were compared in terms of configuration and sample discrimination similarities between methodologies. DA and CATA with semi-trained panelists provided the highest capacity of discrimination and the highest index of similarity for aged samples (95%). The two-hour training period, as well as previous experience with the methodology and products, had a positive effect in reducing the panel size and on the discrimination and characterization of samples, presenting itself as a valuable tool when time- and costefficient sensory profiling is needed. Practical Applications: For decades, consumers were considered only capable of hedonic judgments, however with the development of sensory science and new consumer market dynamics, alternative methods could be studied, providing not only reliable data, but also an accessible language and an easy application. Thus, this study focused on the evaluation of the effect of a short training on the characterization of red wines by consumers, showing that with this step it was possible to reduce 70% of the consumer panel size and to improve 30% in the descriptive power of the samples, in addition to reduce inconsistencies in the responses, using a rapid, low-cost and easy to apply method. Made available in DSpace on 2020-12-10T09:03:59Z (GMT). No. of bitstreams: 1 Caio-Pereira-et-al-JSS-2020.pdf: 1286389 bytes, checksum: eebb185d1c5e73d11b658b4b95dc03de (MD5) Previous issue date: 2020

Os vinhos tropicais são aqueles produzidos em regiões vitivinícolas onde pode ocorrer mais de um ciclo vegetativo da videira por ano, com pelo menos uma safra anual. OS principais fatores que colaboram para eta vitivinicultura de baixas latitudes são: temperaturas elevadas ao longo do ano, precipitação pluviométrica moderada ou deficitária, radiação solar em abundância e água disponível para a irrigação. Podem ocorrer ciclos contínuos, onde quem decide quando podar e quando colher é o produtor, em função das estações chuvosas, das demandas do mercado, da estrutura física e dos tipos de vinhos elaborados. No Vale do São Francisco, Nordeste do brasil, produz-se vinhos tropicais há mais de trinta anos. A vitivinicultura praticada na região é uma das mais tecnificadas do mundo, pois exige elevado grau de conhecimento dos viticultores e técnicos, em termos de manejo do campo, assim como diferentes conhecimentos dos enólogos durante as vinificações. São produzidos na região vinhos espumantes moscatéis, espumantes tradicionais secos e meio doces, vinhos tranquilos tintos jovens e de guarda e brancos jovens, além de vinhos comuns (de mesa), mais recentemente. Esse artigo apresenta as características desta vitivinicultura jovem e diferenciada, quando comparada àquela nos países produtores tradicionais, bem como resultados de pesquisas realizadas na região nos últimos quinze anos, em parceria comas vinícolas. Palavras-chave: uva, vinhos tropicais, Vale do São Francisco, qualidade, tipicidade, Pernambuco, Bahia Made available in DSpace on 2019-01-04T23:36:53Z (GMT). No. of bitstreams: 1 VinhosTropicaisdoSemiaridodoBrasil.pdf: 717552 bytes, checksum: de70294c676b8bc6bf764b1270d6e604 (MD5) Previous issue date: 2019-01-04

Caderno Especial da Fruticultura do Nordeste e Vale do São Francisco.