TEORES DE ENXOFRE E ACEITABILIDADE DE AGUARDENTES DE CANA BRASILEIRAS
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Data
1998-08-01
Autores
Isique, William Deodato [UNESP]
Cardello, Helena Maria A.B. [UNESP]
Faria, João Bosco [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Resumo
Considerando-se as indesejáveis características sensoriais dos compostos sulfurados e o papel negativo que podem representar na qualidade sensorial das aguardentes, foi realizado um estudo para verificar uma possível correlação entre os teores de enxofre presentes em amostras de aguardentes de cana e sua qualidade sensorial. Nesse sentido foram determinados os teores de enxofre de sete amostras de aguardentes de cana, sendo quatro adquiridas no comércio local, e três obtidas em laboratório, utilizando-se alambiques de cobre, de aço inoxidável e de alumínio. As amostras foram então submetidas a testes de aceitabilidade quanto ao aroma, sabor e impressão global, realizados por uma equipe de 30 provadores, em cabines individuais, utilizando-se escala hedônica de nove centímetros. Os resultados assim obtidos após serem submetidos à análise de variância, ao teste de médias de Tukey e à análise de regressão, revelaram haver correlação negativa significativa (p£ 0,05) entre os teores de enxofre e a aceitabilidade das amostras de aguardentes, em relação a todas as características avaliadas, ressaltando o papel negativo representado pelos compostos sulfurados presentes nas aguardentes de cana e indicando ser o método de Ni Raney uma possível opção a ser adotada no controle de qualidade das aguardentes de cana.
The undesirable sensorial characteristics of the sulfur compounds, and the negative role that they can play in the sensorial quality of the sugar cane spirits, led us to study, the possibility of correlation between sulfur levels and sensory attributes of this beverage. In that sense sulfur levels were determined in seven different samples of sugar cane spirit: four commercial samples were acquired in the local trade and the others produced in our laboratory, by using 3 little stills. One of them was made of copper, the other of stainless steel and the third one of aluminium. The samples were then submitted to acceptability tests for aroma, flavor and global impression, performed by a panel of 30 judges, in individual cabins, by using a hedonic scale of nine centimeters. The results submitted to ANOVA, Tukey test and regression analysis, showed a significant negative linear correlation (p£ 0,05), between the sulfur levels and acceptability for aroma, flavor and global impression, pointing out the negative role of the sulfur compounds in the sugar cane spirits quality. and indicated that the Ni Raney's method, can be used in the quality control of this beverage.
The undesirable sensorial characteristics of the sulfur compounds, and the negative role that they can play in the sensorial quality of the sugar cane spirits, led us to study, the possibility of correlation between sulfur levels and sensory attributes of this beverage. In that sense sulfur levels were determined in seven different samples of sugar cane spirit: four commercial samples were acquired in the local trade and the others produced in our laboratory, by using 3 little stills. One of them was made of copper, the other of stainless steel and the third one of aluminium. The samples were then submitted to acceptability tests for aroma, flavor and global impression, performed by a panel of 30 judges, in individual cabins, by using a hedonic scale of nine centimeters. The results submitted to ANOVA, Tukey test and regression analysis, showed a significant negative linear correlation (p£ 0,05), between the sulfur levels and acceptability for aroma, flavor and global impression, pointing out the negative role of the sulfur compounds in the sugar cane spirits quality. and indicated that the Ni Raney's method, can be used in the quality control of this beverage.
Descrição
Palavras-chave
Aguardente de cana, teores de enxofre, análise sensorial, controle de qualidade, Sugar cane spirit, sulfur levels, sensorial analysis, quality control
Como citar
Food Science and Technology (Campinas). Sociedade Brasileira de Ciência e Tecnologia de Alimentos, v. 18, n. 3, p. 356-359, 1998.