Methods gas chromatography, capillary electrophoresis, chromatography-mass spectrometry in analytical control of alcoholic beverages

Шелехова, Наталия Викторовна; Шелехова, Тамара Михайловна; Скворцова, Любовь Ивановна; Полтавская, Наталья Валериевна

doi:10.52653/ppi.2021.9.9.028

Food Processing Industry

2021

DOI: 10.52653/ppi.2021.9.9.028

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Methods gas chromatography, capillary electrophoresis, chromatography-mass spectrometry in analytical control of alcoholic beverages

Наталия Викторовна Шелехова¹,

Тамара Михайловна Шелехова²,

Любовь Ивановна Скворцова³

et al.

Abstract: Разработаны, внедрены в практику аналитического контроля и применены в научных исследованиях инструментальные экспрессные методики определения химического состава продуктов, полупродуктов и отходов спиртового и ликероводочного производства. Получены новые экспериментальные данные, и выявлены закономерности кинетики биотехнологических процессов. Developed, implemented in the practice of analytical control and applied in … Show more

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Inorganic Acid Anions in Distilled Alcoholic Beverages: Capillary Electrophoresis with Conductometric Detection

Shelekhova,

Abramova,

Shelekhova

2023

Food Processing: Techniques and Technology

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Distilled alcoholic drinks are popular all over the world. Monitoring the quality and safety of such drinks requires modern instrumental methods. Chemical composition of alcoholic beverages has become focus of numerous experimental and theoretical publications. However, this area remains understudied. This research provided an experimental confirmation of the capillary electrophoresis as a prospective method for determining anions in alcoholic beverages. The study involved model solutions and 30 samples of distilled alcoholic beverages purchased by random sampling from a retail chain. The chemical analysis relied on a PrinCE 560 capillary electrophoresis system equipped with a conductometric detector. The study revealed the working parameters for electrophoretic analysis that provided a selective qualitative and quantitative test of five target analytes in 9 min. The optimal composition of the buffer solution and the optimal electrolyte ratios were 30 mmol/dm3 L-Histidine and 30 mmol/dm3 2-(N-Morpholino) ethanesulfonic acid Monohydrate. The correlation between the peak area and the mass concentration was at 0.1–10 mg/dm3 for the target analytes. The approach proved effective in determining chloride, nitrate, sulfate, fluoride, and phosphate ions in whiskey, rum, tequila, moonshine, grain, and rum distillates. The study also included a comparative analysis of the qualitative and quantitative anion profiles in whiskey samples from different countries. All the samples contained 0.22–52.74 mg/dm3 chlorides, 0.60–0.06 mg/dm3 nitrates, 0.25–17.59 mg/dm3 sulfates, and 0.75–12.70 mg/dm3 phosphates. Research prospects include a metrologically certified method to identify the anion composition of organic and inorganic acids in distilled alcoholic beverages.

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Inorganic Acid Anions in Distilled Alcoholic Beverages: Capillary Electrophoresis with Conductometric Detection

Shelekhova,

Abramova,

Shelekhova

2023

Food Processing: Techniques and Technology

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Quantitative analysis of rutin in flavonoid-rich plant raw material by HPTLC

Kobakhidze,

Agatonovic-Kustrin,

Gegechkori

et al. 2024

Farmaciya

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Introduction. Due to the increasing requirements for the quality of pharmaceutical products, the requirements for standardization of herbal medicines are also growing, which in turn necessitates the development of approaches to quality control of medicinal plant raw materials. The use of such an advanced method as high-performance thin-layer chromatography (HPTLC) will improve the quality of drug standardization, which is associated with the advantages of this method: minimized sample preparation, parallel determination of small volumes, elution time, high sensitivity, efficiency and speed. Objective. Quantitative determination of rutin by high-performance thin-layer chromatography, as well as comparison of the results of quantitative determination of the amount of flavonoids in terms of rutin by the spectrophotometric method. Material and methods. Medicinal plant raw materials – violet herb – were subjected to extraction using a developed method with 70 and 96% ethanol. Quantitative determination of rutin in extracts was carried out by HPTLC and spectrophotometry. Results. The developed method for the quantitative determination of rutin was validated in terms of linearity, specificity and accuracy. The difference in the extractive ability of the solvents used was shown. The percentage of rutin determined using the HPTLC method in an ethanol (96%) extract (3 µl) is 3.0826%, in an ethanol (70%) extract (3 µl) – 1.5911%. The percentage of rutin determined using the HPTLC method in an ethanol (96%) extract (5 µl) is 3.0894%, in an ethanol (70%) extract (5 µl) – 1.6064%. The percentage of total flavonoids in terms of rutin determined using the spectrophotometric method in the ethanol (96%) extract is 3.4289%, in the ethanol (70%) extract – 2.4176%. Conclusion. As a result of the study, a method for the quantitative determination of rutin was developed and validated, which can be used in the standardization of violet herb.

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Methods gas chromatography, capillary electrophoresis, chromatography-mass spectrometry in analytical control of alcoholic beverages

Cited by 2 publications

References 0 publications

Inorganic Acid Anions in Distilled Alcoholic Beverages: Capillary Electrophoresis with Conductometric Detection

Inorganic Acid Anions in Distilled Alcoholic Beverages: Capillary Electrophoresis with Conductometric Detection

Quantitative analysis of rutin in flavonoid-rich plant raw material by HPTLC

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