135 resultados para Análise Sensorial


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Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

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Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

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Pós-graduação em Alimentos e Nutrição - FCFAR

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Agronomia (Energia na Agricultura) - FCA

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Agronomia (Produção Vegetal) - FCAV

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Brazilian wines are appreciated by consumers for having fruity odor and taste which are typical from Vitis labrusca cultivars. The rusticity of these cultivars, the winemaking and the physicochemical properties are some of the key factors to obtain a quality beverage. In this context, the aim of this article was to analyze the quality of three white wines from wineries located in northwest region of São Paulo state by determining physicochemical properties and sensory profile. Data were analyzed by statistical tests and by Principal Component Analysis (PCA). It was possible to observe statistical differences (P<0,05) in most physicochemical properties. Furthermore, the PCA showed that the attributes body and color significantly explained the variance of the first and second component, respectively, higlighting the Vitis vinifera wine. Thus the connection between the physicochemical and sensory properties of white wines was important for characterization of these beverages produced in the northwest of São Paulo.

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Brazilian red wines are very appreciated by consumers from tropical regions, because they typically have aromatic and fruity taste. Thus, the aim of this article is to verify the quality of red wines from wineries located in Northwest region of São Paulo, based on the relationship between physicochemical properties and sensory attributes. Three red wines from this region was evaluated by sensory and analytical methods and it was possible to observe significant differences in the fixed acidity, alcoholic content, total phenolic content and total dry extract. Multidimensional Scaling showed relationship between total phenolic content and astringency, total dry extract and body and the relationship of volatile acidity in the assessment of odor samples. It was possible to see the physicochemical influence in sensory evaluation, indicating the importance of the chemical profile in the elucidation of possible sensory alterations in red wines.

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In this work were prepared with three ice cream added peppers of different varieties: Capsicum baccatum, Capsicum annuum and Capsicum frutescens. The peppers were first pasteurized and evaluated in relation to the effect of heat treatment on the ascorbic acid content. Results showed that the Capsicum annuum showed higher ascorbic acid content, but the heat treatment resulted in greater loss of biocompounds. The higher retention of ascorbic acid was observed with Capsicum frutescens, which presented lower content of biocompound, but near of the pepper Capsicum annuum. The follow attributes was performed to evaluate the acceptance of ice cream through the sensory attributes: color, aroma, flavor and texture. Analysis of variance showed no significant difference between ice cream formulations at the 5% level of significance with regard to color, aroma and texture. Regarding taste, the samples differed significantly, at 5% significance, and the most preferred was the ice cream made with pepper Capsicum frutescens.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Avocado (Persea americana Mill.) is a product grown in tropical and subtropical regions and from it we can extract products like guacamole which is highly consumed in the Mexican culinary. The most used varieties for guacamole are the Hass and Fuerte. The present research had as objective to evaluate the microbiological and sensorial quality of the guacamole conserved through cold with no addition of additives. The microbiological analyses have shown the product reached satisfactory results as for the analysis of total and thermoenduring coliform < 3,0 UFC/g, Salmonella absent in 25g, Staphylococcus aureus and Bacillus cereus < 100 UFC/g, presenting values within the patterns set by RDC of Anvisa 12 of January 2nd 2001. The analyses of mesophile bacteria and the counting of mold and yeast reached values between 102 and 104 UFC/g and the psychrotropic bactéria presented values < 100 UFC/g. The sensorial anlyses have shown that the polyethylene package isn't effective in keeping the analysed sensorial parameters. Although the polyethylene and nylon packages had better results, however they didn't differentiate themselves so as the vacuum use.