Identification, quantification and comparison between the chemical substances responsable of the irradiated pot still cachaça and comercial rum aromas / Identificação, quantificação e comparação das substâncias químicas responsáveis pelos aromas da cachaça de alambique e do rum comercial tratados pelo processo de irradiação

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

08/02/2006

RESUMO

The irradiation process has being presented as an alternative technique in food preservation. When apply on beverages, radiation is mainly used for malt decontamination or sterilization of musts and had been proposed also to accelerate aging. Some confusion over rum and cachaça identities has arisen due to the internationalization of cachaça. This research aims to identify, quantify and compare the effect of gamma radiation on the aroma of the Brazilian spirit with rum, irradiated and non irradiated, by instrumental and sensory analysis. Results showed that the content of volatile compounds presented strong correlation with the radiation dose (0, 150 and 300Gy) for all the samples. According to Triangle Test for aroma, all the judges could distinguish among non irradiated and irradiated samples (300Gy), aged cachaça from rum and non aged cachaça from rum, but they couldn\ t distinguish aged cachaça from non aged cachaça. Analysis of variance (ANOVA) of the results from the quantitative descriptive analysis showed that non irradiated non aged cachaça and rum were different in their alcohol, vinegar, vanilla, citrus, melon, spice, vegetal and grass except caramel and apple aroma attributes. Non irradiated cachaça and irradiated cachaça (300Gy); and non irradiated rum and irradiated rum (300Gy) were different in their apple, caramel, vinegar, vanilla, citrus, melon, spice, vegetal and grass except alcohol aroma attributes. According to the gas chromatography/olfatometry results, significant difference was found among non irradiated cachaça and rum; non irradiated cachaça and irradiated cachaça (300Gy); and non irradiated rum and irradiated rum (300Gy) when their aromas were compared.

ASSUNTO(S)

alcohols análise sensorial beverages cachaça comparative evaluations efeitos da radiação ionizante gamma radiation gas chromatography ionizing radiations odor radiation effects rum sensory analysis sugar cane

ACESSO AO ARTIGO

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