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The content of flavonoids in vitamin preparations

Authors: Zhilkina V.Yu.; Marakhova A.I.; Sorokina A.A.; Sergunova E.V.;

The content of flavonoids in vitamin preparations

Abstract

Introduction. Vitamin preparations are widely used in the therapy of various diseases. The main dosage forms of the preparations include tinctures or decoctions. In addition to vitamins, medicinal plant raw materials, the components of the preparations, contain flavonoids. Objective: to develop methods for quantification of flavonoids in vitamin preparations. Material and methods. The investigation objects were model samples of vitamin preparations Nos. 1 and 2 and commercial samples of mountain ash (Sorbus aucuparia) berries, rose (Rōsa) hips, and black currants (Ribes nigrum). The amount of flavonoids was determined spectrophotometrically. Results. Optimal pH values and an optimal extractant for flavonoid-aluminum chloride complexation in the vitamin preparations were found to be 1.5-2.3 and 95% ethanol, respectively. It was ascertained that the amount of flavonoids in black currants and mountain ash berries should be calculated with reference to rutin and that in rose hips to luteolin. Conclusion. A spectrophotometric procedure was developed to determine the amount of flavonoids in vitamin preparations Nos. 1 and 2 and in their components: rose hips, mountain ash berries and black currants. Standardization of vitamin preparations Nos. 1 and 2 and their components was shown to be unreasonable in terms of the amount of flavonoids.

Введение. Витаминные сборы широко используются в терапии различных заболеваний. Основной лекарственной формой сборов являются настои или отвары. Помимо витаминов, лекарственное растительное сырье - компоненты сбора - содержат флавоноиды. Цель - разработка методики количественного определения суммы флавоноидов в витаминных сборах. Материал и методы. Объекты исследования - модельные образцы витаминных сборов № 1 и № 2, промышленные образцы плодов рябины обыкновенной, шиповника и смородины черной. Сумму флавоноидов определяли спектрофотометрически. Результаты. Для образования комплекса флавоноидов витаминных сборов с алюминия хлоридом выявлены: оптимальное значение рН - 1,5-2,3, а также оптимальный экстрагент - 95% этиловый спирт. Установлено, что в плодах смородины черной и рябины обыкновенной пересчет суммы флавоноидов следует проводить на рутин, а в плодах шиповника - на лютеолин. Заключение. Разработана спектрофотометрическая методика определения суммы флавоноидов в витаминных сборах № 1 и № 2 и их компонентах: плодах шиповника, рябины обыкновенной и смородины черной. Показано, что стандартизация витаминных сборов № 1 и № 2 и их компонентов по показателю «содержание суммы флавоноидов» не рациональна.

Keywords

vitamin preparations, flavonoids, spectrophotometry, витаминные сборы, флавоноиды, спектрофотометрия

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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