Comprehensive Study Of The Chemical Composition Of Crataegus Pontica L

Аннотация

The object of research was Crataegus pontica L. A comparative study of dioecious nettle growing both in mountainous areas and in the suburbs of Tashkent was conducted. For research, the aboveground parts of the plant (leaves and stem) were used. The analysis of micro and macronutrients was performed by inductively coupled plasma mass spectrometry (ICP-MS). The quantitative content of the water-soluble and vitamins was studied by HPLC relative to standard samples. Chromatographic and structural studies of the aboveground part of the Crataegus pontica L. plant were performed on the content of phenolic compounds and flavonoids in them. Chromatography-mass spectrometry was used to determine the chemical structure of isolated individual compounds. The results of these analyses suggest the presence of the following classes of flavonoids in the plant Crataegus pontica L.: polyphenols, (+) - catechin, (-) - epicatechin. KEYWORDS Crataegus pontica L., macro- and microelements, fraction, two-dimensional paper chromatography, chromatography-mass spectrometry, polyphenols, catechin, epicatechin, essential elements. The US A Journals Volume 02 Issue 08-2020 154 The American Journal of Applied Sciences IMPACT FACTOR (ISSN – 2689-0992) 2020: 5. 276 Published: August 30, 2020 | Pages: 154-166 Doi: https://doi.org/10.37547/tajas/Volume02Issue08-23