Dual optically responsive paper-membrane for simple, portable, and versatile control of total and volatile acidity in wines

IF 5.7 2区化学 Q1 CHEMISTRY, ANALYTICAL

Analytica Chimica Acta Pub Date : 2025-04-05 DOI:10.1016/j.aca.2025.344016

Melany G. López Aveiga, María Dolores Fernández Ramos, Vanesa Martos Núnez, Antonio González Casado, Antonio L. Medina Castillo

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引用次数: 0

Abstract

Background

The high consumption of expensive and polluting reagents and the use of tedious reactions with long analysis times are key problems in the quantification of total (TA) and volatile acidity (VA) in wine by official methods (titration with sodium hydroxide and enzymatic method).

Results

We have exploited the advantages and versatility of our optically responsive paper-membrane (Paper-FM) to perform the dual simultaneous determination (fluorescent and colorimetric) of TA and VA in wine. The technology was tested by performing the simultaneous double quantification (fluorescence and colorimetry) of TA and VA of wine samples from different origins, obtaining an excellent correlation between the results obtained by colorimetry and those obtained by fluorescence. Furthermore, the results were successfully validated using official reference methods (titration with sodium hydroxide and enzymatic method) in an accredited laboratory.

Significance

We have developed the first optical sensing method that allows the quantification of the TA and VA in wine. The results presented in this work demonstrate that our optical sensing technology enables direct, simple, reversible, reusable, fast, cost-effective, and environmentally friendly simultaneous dual quantification (fluorescent and colorimetric) of TA and VA in wine samples without the use of additional reagents.

Abstract Image

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用于简单、便携和多功能控制葡萄酒总酸度和挥发性酸度的双光学响应纸膜

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来源期刊

Analytica Chimica Acta 化学-分析化学

CiteScore

10.40

自引率

6.50%

发文量

1081

审稿时长

38 days

期刊介绍： Analytica Chimica Acta has an open access mirror journal Analytica Chimica Acta: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Analytica Chimica Acta provides a forum for the rapid publication of original research, and critical, comprehensive reviews dealing with all aspects of fundamental and applied modern analytical chemistry. The journal welcomes the submission of research papers which report studies concerning the development of new and significant analytical methodologies. In determining the suitability of submitted articles for publication, particular scrutiny will be placed on the degree of novelty and impact of the research and the extent to which it adds to the existing body of knowledge in analytical chemistry.