Various instrumental approaches for determination of organic acids in wines

Žeravík, Jiří; Fohlerová, Zdenka; Milovanovic, Miodrag; Kubesa, Ondřej; Zeisbergerová, Marta; Lacina, Karel; Petrović, Aleksandar; Glatz, Zdeněk; Skládal, Petr

doi:10.1016/j.foodchem.2015.08.013

Cited by 35 publications

(15 citation statements)

References 39 publications

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“…The optimal sheath liquid composition consisted on 70:30 isopropanol/water ( v/v ) containing 7.5 mmol/L acetic acid at a flow rate of 6 μL/min . Besides, CE‐UV has been employed for the determination of the organic acids composition and quantification of 31 wine samples and for the classification of 38 samples of commercial wine from four wine‐producing provinces of Argentina according to the grape variety applying the Tucker3 algorithm , as well as for the measure of the changes in organic acids levels in coffee seeds as function of different fermentation treatments . Moreover, CE has shown an interesting application as a tool for the downstream process monitoring by the detection of organic impurities in the process of lactic acid purification from 15‐s generation renewable feedstock .…”

Section: Small Organic and Inorganic Compoundsmentioning

confidence: 99%

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

et al. 2017

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Recent advances in the application of capillary electromigration methods for food analysis and FoodomicsThis review work presents and discusses the main applications of capillary electromigration methods in food analysis and Foodomics. Papers that were published during the period February 2015-February 2017 are included following the previous review by Acunha et al. (Electrophoresis 2016, 37, 111-141). The paper shows the large variety of food related molecules that have been analyzed by CE including amino acids, biogenic amines, carbohydrates, chiral compounds, contaminants, DNAs, food additives, heterocyclic amines, lipids, peptides, pesticides, phenols, pigments, polyphenols, proteins, residues, toxins, vitamins, small organic and inorganic compounds, as well as other minor compounds. This work describes the last results on food quality and safety, nutritional value, storage, bioactivity, as well as uses of CE for monitoring food interactions and food processing including recent microchips developments and new applications of CE in Foodomics.

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Section: Small Organic and Inorganic Compoundsmentioning

confidence: 99%

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

et al. 2017

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“…Enzyme sensors with voltammetric detection of the response have been reported for the detection of a number of organic acids 13–15. Their application is mainly devoted to the analysis of biological fluids and foodstuffs with a rather high analyte concentration.…”

Section: Introductionmentioning

confidence: 99%

Organic Acid and DNA Sensing with Electrochemical Sensor Based on Carbon Black and Pillar[5]arene

et al. 2016

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Electrochemical sensor has been proposed on the base of glassy carbon electrode (GCE) modified with carbon black (CB) and pillar[5]arene (P[5]A). The characteristics of the peak currents were found to be sensitive to the incubation of the sensor in organic acid and DNA solution. The detection of n×(10−8–10−5) M of organic acid and down to (1–5)×10−18 g of DNA was attributed to the effect of the analytes on the aggregation and relative stability of oxidized and reduced forms of P[5]A. No signal interference with the alkali and alkali‐earth metal ions was found. The electrochemical sensor was tested in the detection of specific DNA interactions, i.e. reactive oxygen species damage and intercalating pharmaceuticals detection.

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“…If the results are compared with wines of different countries [2,39,40,41,42,43], one can observe high variances both for organic acids and for polyphenols. If the different grapes are grown in the countries characterized by different weather conditions, soil characteristics, and also viticultural practices, and the modifications in winemaking procedures are considered, these may be expected results.…”

Section: Resultsmentioning

confidence: 99%

Organic Acids and Polyphenols Determination in Polish Wines by Ultrasound-Assisted Solvent Extraction of Porous Membrane-Packed Liquid Samples

et al. 2019

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In the near future, Poland is going to have more and more favorable conditions for viticulture. Organic acids and polyphenols are among the most commonly analyzed compounds due to their beneficial properties for human health and their importance in the winemaking process. In this work, a new technique involving ultrasound-assisted solvent extraction of porous membrane-packed liquid samples (UASE-PMLS) was for the first time described and applied for real samples. The methodology based on UASE-PMLS for organic acids and polyphenols in wine samples was optimized and validated. Using the new technique coupled to GC–MS, organic acids and polyphenols were evaluated in Polish wine samples. Extraction solvent, extraction temperature, derivatization time and sample pH were optimized. Chemometric tools were used for data treatment. Good linearity was obtained for the concentration ranges evaluated with r values between 0.9852 and 0.9993. All parameters of method validation (intra- and inter-day precision and matrix effect) were over 80% with coefficient of variation (CV) up to 17%. Recovery was between (92.0 ± 8.5)% and (113 ± 16)%. Finally, green assessment was evaluated using Analytical Eco-Scale and Green Analytical Procedure Index (GAPI). The UASE-PMLS is characterized by many advantages, e.g., the extraction process is fast and easy coupled to GC–MS. Regarding other extraction techniques, the amount of used solvent is minimum, and no waste is generated. Therefore, it is an environmentally friendly technique.

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Various instrumental approaches for determination of organic acids in wines

Cited by 35 publications

References 39 publications

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

Organic Acid and DNA Sensing with Electrochemical Sensor Based on Carbon Black and Pillar[5]arene

Organic Acids and Polyphenols Determination in Polish Wines by Ultrasound-Assisted Solvent Extraction of Porous Membrane-Packed Liquid Samples

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