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|Título:||A flow injection system coupled to a micro-guard cartridge for monitoring a vinification process|
Rangel, António O. S.S.
Synthetic grape juice
|Citação:||VIDIGAL, Susana ; RANGEL, António O. S. S. - A flow injection system coupled to a micro-guard cartridge for monitoring a vinification process. Analytical Sciences. ISSN 0910-6340. Vol. 30 (2014), p. 1057-1062|
|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.|
|Versão do Editor:||https://www.jstage.jst.go.jp/article/analsci/30/11/30_1057/_article|
|Aparece nas colecções:||CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review|
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|SSMP Vidigal, Analytical Sciences, 30 (2014) 1057-1062.pdf||1,08 MB||Adobe PDF||Ver/Abrir|
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