Herbaceous plants growing in Arctic zones as potential perspective sources of valuable flavonoids

Abstract

Flavonoids represent a wide group of polyphenols involved in many key processes of plant growth and its can be successfully used in medical practice. In plants that are exposed to extreme factors of various nature, the flavonoids synthesis occurs more intensively compared with plants of the same species growing under more favorable conditions. Thus, it can be assumed that it is the Arctic plants that can be important sources of flavonoids. This paper presents the results of a search for flavonoid sources among herbaceous plants growing in the Arctic zone, in particular, the Murmansk region. The total flavonoid content in ethanol extracts of 24 plant species was estimated using the reaction of complexation with aluminum chloride. It was shown that Lathyrus pratensis L., Lupinus arcticus L., Hedysarum alpinum L., Chamaenerion angustifolium L., and Polygonum weyrichii species contain the highest amounts of flavonoids.

Extraction of Bioactive Components from Chamaenerion angustifolium (L.) Scop. with Choline Chloride and Organic Acids Natural Deep Eutectic Solvents

“…The total phenolic content (TPC) was determined by a reaction with a Folin-Chocalteu reagent [27]. The total flavonoid content (TFC) was determined using the complexation reaction with aluminum chloride [7]. For these analyses, row extracts were diluted 100 times.…”

“…It contains several bioactive compounds such as phenolic acids, cinnamic acid derivatives, ascorbic acid, flavonoids (quercetin, kaempferol, and myricetin derivatives), tannins, coumarins, carotenes, sterols, and triterpenes; they provide a high pharmacological activity such as antioxidant, antibacterial, anti-inflammatory, analgesic, and anticancer properties [2][3][4][5][6]. The content of flavonoids in this plant is one of the highest among the herbaceous plants of the Kola Peninsula [7]. C. angustifolium quickly accumulates a large amount of biomass and is quite easy to cultivate, which makes it a valuable potential source of nutrients and raw materials for further processing.…”

The Influence of Climatic Conditions on Accumulation of Biologically Active Com-Pounds in Koenigia Weyrichii

“…Общее содержание полифенолов, флавоноидов, антиокидантой и антирадикальной активности экстрактов различных огранов растения K. Weyrichii, собранных в различные периоды вегетации в трех разных месторасположенях, а также результаты теста Тьюки, описывающие статистическую значимость между средними значениями определяемых параметров в рамках одного месторасположения, представлено в таблице 2. 111.8±2.9 1,3,4.5.6 3.20±0.20 1,4,6 33.9±2.0 1,4,5,6 34.6±1.6 1,3,5,6 3 77.6±1.9 1,2,4,5,6 3.30±0.18 1,4,,6 31.3±2.6 1,4,5.6 29.5±1.8 2,4,5,6 4 101.9±2.0 1,2.3,5.6 1.09±0 1,2,3.5,6 25.7±1.9 1,2.3,5 36.5±1.7 1,3,5,6 5 107.3±2.3 1,2,3,4.6 2.93±0.12 1,2.3,4, 38.6±1.5 1,2.3.5,6 40.0±2.0 1,2,3.4,6 6 43.5±1.2 1,2,3,4.5 2.72±0.15 1,4 24.3±1.6 1,2,3,5 23.2±1.9 1,2,3,4,5 1 Средние значения ± стандартное отклонение. 2 1 -Соцветия период массового цветения; 2 -Листья вернего яруса в период массового цветения; 3 -Листья среднего яруса в период массового цветения; 4 -Соцветия в период плодоношения; 5 -Листья верхнего яруса в период плодоношения; 6 -Листья среднего яруса в период плодоношения Общее содержание полифенолов.…”

“…K. Weyrichii -травянистый многолетник, характеризуется быстрым ростом, высокой урожайностью зеленой массы, холодостойкостью и морозостойкостью, содержит значительное количество флавоноидов в надземных частях, листьях и соцветиях [1].…”

“…1 Federal Research Center "Kola Science Center" RAS, ul. Fersmana, 14, Apatity, 184209 (Russia)2 Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials.…”