Issue |
BIO Web Conf.
Volume 56, 2023
43rd World Congress of Vine and Wine
|
|
---|---|---|
Article Number | 02026 | |
Number of page(s) | 6 | |
Section | Oenology | |
DOI | https://doi.org/10.1051/bioconf/20235602026 | |
Published online | 24 February 2023 |
Validación de un método automatizado basado en espectrofotometría para el análisis de sulfito en vino
Validation of an automated method based on spectrophotometry for the analysis of sulfite in wine
BioSystems S.A., Costa Brava 30, Barcelona, 08030 Catalonia, Spain
Si hay un aditivo al que aún es difícil renunciar en la elaboración de vinos es el sulfito. Hasta la fecha no se ha conseguido ningún producto que aglutine las cualidades antimicrobianas, antioxidantes y antioxidásicas de este compuesto. BioSystems dispone de un reactivo automatizado mediante el uso del analizador Y15, para la cuantificación de sulfito libre en vino y mosto. Se presentan los datos de la validación: el rango de linealidad es de 0 a 100 mg/l (r2>0,99). El LOQ es de 2,1 mg/l y los valores de precisión en todo el rango de medida están entre 1,0 y 1,3 % (repetibilidad) y 1,1 y 2,1 % (reproducibilidad). Las comparaciones con el método de referencia tipo II, Franz- Paul (OIV-MA-AS323-04B) realizadas en diversos laboratorios, muestran una buena correlación. El método Free Sulfite Y15 BioSystems automatizado, simple y rápido ha sido validado con éxito.
Abstract
If there is an additive that is still difficult to give up in winemaking, it is sulphite. To date, no product has been found that brings together the antimicrobial, antioxidant and antioxidase qualities of this compound. BioSystems has an automated reagent using the Y15 analyzer for the quantification of free sulfite in wine and must. Validation data are presented: the linearity range is 0 to 100 mg/l (r2>0.99). The LOQ is 2,1 mg/L and precision values over the entire measurement range are between 1.0 and 1.3% (repeatability) and 1.1 and 2.1% (reproducibility). Comparisons with the type II reference method, Franz-Paul (OIV-MA-AS323-04B) carried out in various laboratories, show a good correlation. The automated, simple and fast Free Sulfite Y15 BioSystems method has been successfully validated.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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