A flow-injection system coupled to a micro-guard cartridge for monitoring a vinification process

Susana S. M. P. Vidigal, António O. S. S. Rangel*

*Autor correspondente para este trabalho

Resultado de pesquisarevisão de pares

2 Citações (Scopus)
7 Transferências (Pure)

Resumo

The present paper describes a flow-injection system coupled to a Micro-Guard cartridge and a miniaturized optical CCD detection system used to monitor the sugars (glucose/fructose) and ethanol content during alcoholic fermentation. The carrier stream (mobile phase) is composed of an aqueous sulfuric acid solution. The flow parameters were studied in order to obtain a good resolution and a wide dynamic concentration range, with a good repeatability. The relative standard deviation (RSD) obtained was inferior to 4%, for n = 3. It was possible to achieve a linear range of up to 12 g L -1 of sugars and up to 2% (v/v) of ethanol with a detection limit of 2.3 g L -1 and 0.4% (v/v), for sugars and ethanol concentrations, respectively. The proposed system was successfully applied to monitor a vinification process by the quantification of sugars and ethanol, and also in some finished port wines.
Idioma originalEnglish
Páginas (de-até)1057-1062
Número de páginas6
RevistaAnalytical Sciences
Volume30
Número de emissão11
DOIs
Estado da publicaçãoPublicado - nov. 2014

Impressão digital

Mergulhe nos tópicos de investigação de “A flow-injection system coupled to a micro-guard cartridge for monitoring a vinification process“. Em conjunto formam uma impressão digital única.

Citação