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The genus Potentilla L. is the most extensive species of the Rosaceae family. Potentillas are found in all ecological niches: on open rocky slopes, along river banks, on the edges of forests. At the same time, in addition to the pharmacopoeial species – erect cinquefoil (P.erecta L.) – other species of the genus Potentilla L. are currently of scientific interest, since they also contain a wide range of biologically active compounds, which determines their pharmacological effect. The aim of this work was a comparative study of the chemical composition of the aboveground and underground parts of some representatives of the genus Potentilla L., introduced in the conditions of the South Ural Botanical Garden-Institute of Ufa Federal Research Center of Russian Academy of SciencesQualitative reactions made it possible to determine the presence of ascorbic acid and tannins in the studied raw materials. Thin layer chromatography revealed the presence of oxalic (Rf=0.14), tartaric (Rf=0.36), citric (Rf=0.39), ascorbic (Rf=0.62) and malic acids (Rf=0.80). As a result of a quantitative analysis of the raw materials of four representatives of the genus Potentilla L. (P. erecta, P. alba, P. rupestris, P. chrysantha), it was revealed that the maximum accumulation of ascorbic acid is observed in leaves (0.47–0.64%), organic acids – in flowers (4.32–6.28%), tannins – in roots (14.25–24.78%). Despite the fact that the accumulation rates of some groups of biologically active substances in the pharmacopoeial form (P. erecta) are higher than in the studied taxa, Potentilla P. alba, P. chrysantha, P. rupestris also contain a significant amount of biologically active substances and are of interest for further study., Род лапчатка (Potentilla L.) – самый обширный род семейства Розоцветные (Rosaceae). Лапчатки встречаются во всех экологических нишах: на открытых каменистых склонах, по берегам рек, на опушках лесов. При этом помимо фармакопейного вида – лапчатки прямостоячей (P. erecta L.) – в настоящее время научный интерес вызывают и другие виды рода Potentilla L., так как тоже содержат широкий спектр биологически активных соединений, что обусловливает их фармакологический эффект. Целью работы являлось сравнительное изучение химического состава надземной и подземной частей некоторых представителей рода Potentilla L., интродуцированных в условиях Южно-Уральского ботанического сада-института УФИЦ РАН. Качественные реакции позволили определить присутствие аскорбиновой кислоты и дубильных веществ в исследуемом сырье. Тонкослойная хроматография установила наличие щавелевой (Rf=0.14), винной (Rf=0.36), лимонной (Rf=0.39), аскорбиновой (Rf=0.62) и яблочной кислот (Rf=0.80). В результате количественного анализа сырья четырех представителей рода Potentilla L. (P. erecta, P. alba, P. rupestris, P. chrysantha) выявлено, что максимальное накопление аскорбиновой кислоты отмечается в листьях (0.47–0.64%), органических кислот – в цветках (4.32–6.28%), дубильных веществ – в корнях (14.25–24.78%). Несмотря на то, что показатели накопления некоторых групп биологических активных веществ в фармокопейном виде (P. erecta) выше, чем у исследованных таксонов, лапчатки P. alba, P. chrysantha, P. rupestris также содержат значительное количество биологически активных веществ и представляют интерес для дальнейшего их изучения.

Lonicera caerulea L. and its subspecies Lonicera caerulea subsp. edulis (Turcz. ex Freyn) Hulten and Lonicera caerulea subsp. altaica Pall. belong to the genus Lonicera L. family Caprifoliaceae Juss., they are valuable fruit plants that are used in medicine, food industry, agriculture. The value of these species lies in the early ripening of fruits and a high content of vitamin C and other biologically active compounds. The aim of the study was the qualitative and quantitative determination of the main groups of biologically active substances – organic acids and tannins, in the fruits of three species of the genus Lonicera from the collection of the South Ural Botanical Garden-Institute and the selection of the most promising species. For analysis, honeysuckle fruits were collected in the full ripening phase and dried to an air-dry state. Phytochemical studies were carried out according to generally accepted methods. As a result of the study, it was found that all the studied honeysuckle samples contain citric, malic, succinic, oxalic, ascorbic acids, and tartaric acid in Lonicera caerulea subsp. edulis. According to the quantitative content of ascorbic acid and the sum of organic acids, a species is distinguished in Lonicera caerulea subsp. edulis, whose fruits contain 174 and 1723 mg/100 g respectively, and in Lonicera caerulea subsp. altaica and Lonicera caerulea their content is below. The analysis of fruits for the content of tannins showed, that they are dominated by substances of condensed nature, which are based on catechism, and in a larger amount they accumulate in Lonicera caerulea – 426 mg/100 g in a smaller amount – in Lonicera caerulea subsp. edulis – 171 mg/100 g. The obtained data allow us to recommend the studied species of the genus Lonicera as a promising source of raw materials for the creation of medicinal plant products based on them, enriched with vitamins and other valuable biologically active substances on their basis.

The main purpose of the work was the phytochemical study of the herb of the blood burnet drug (Sanguisorba officinalis L.) from six regions of the Republic of Bashkortostan and the rationale for the prospect of expanding its use in medicine. The collection of herbs was carried out in the flowering phase. The analysis of raw materials was carried out on the basis of the Bashkir State Medical University. Qualitative and quantitative determination of biologically active substances was carried out according to standard and modified methods. Amino acid composition was determined by x-ray fluorescence method The quantitative characteristics of the following groups of biologically active substances were determined: ascorbic acid (0.307–0.521%), organic (1.46–2.27%) and hydroxycinnamic (1.13–1.30%) acids, carotenoids (31.17–35.89 mg%), polysaccharides (0.43–1.05%), saponins (0.56–0.88%), coumarins (0.285–0.326%), tannins (5.1–6.3%). A characteristic of the amino acid composition. The possibility of using the herb of burnet drug is shown along with the rhizomes and roots, which will solve the problem of waste-free processing of this plant.