Ivan Horbachevsky Ternopil National Medical University of the Ministry of Health of Ukraine, Ternopil, Ukraine,
Bukovinian State Medical University, Chernivtsi, Ukraine
Introduction. Rumex patientia L. × Rumex tianschanicus Losinsk. is a multifunctional plant valued for its use as forage, food, vegetable, and medicinal resource. It provides a rich source of plant-derived nutrients, including high-quality protein, essential macro- and micronutrients, vitamins, organic acids, lipids, amino acids, and carotenoids. Therefore, an in-depth phytochemical study of all organs of this plant is relevant. The aim of our study was to conduct a comparative analysis of the content of fatty acids in the leaves, flowers, roots, and seeds of Rumex patientia L. × Rumex tianschanicus Losinsk.
Materials and methods. The material for the research was the leaves, roots, seeds and flowers of Rumex patientia L. × Rumex tianschanicus Losinsk. Identification and quantitative content of fatty acids in the studied medicinal plant raw materials was carried out by gas chromatography / mass spectrometry (GC/ MS) of fatty acid methyl esters using the Agilent 6890N/5973inert gas chromatography-mass spectrometry system (Agilent technologies, USA).
Results. Some 15 fatty acids have been identified in Rumex patientia L. × Rumex tianschanicus Losinsk. roots, leaves, flowers, and seeds, and their quantitative content has been determined by gas chromatography. Accordingly, in all samples of Rumex patientia L. × Rumex tianschanicus Losinsk., unsaturated fatty acids dominated. Oleic acid was the dominant unsaturated fatty acid in the flowers and seeds, while α-linolenic acid was predominant in the roots. The highest content of oleic acid (7947.51 µg/g) was found in the seeds, while that of linoleic acid (1507.01 µg/g) was found in the flowers.
Conclusion. The performed study on the fatty acid composition of Rumex patientia L. × Rumex tianschanicus Losinsk. did not reveal any substantial differences in qualitative composition and quantitative content of fatty acids across different plant parts. The results have shown that unsaturated fatty acids prevailed in the roots, leaves, flowers, and seeds.
Keywords: Rumex patientia L. × Rumex tianschanicus Losinsk., fatty acids, gas chromatography/mass spectrometry.
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