DOI 10.36461/NP.2024.69.1.003
UDC 633.88 (470.40)

THE QUALITY OF POT MARIGOLD RAW MATERIAL OBTAINED IN THE FOREST-STEPPE OF THE MIDDLE VOLGA REGION USING GROWTH REGULATORS
V.A. Gushchina, Doctor of Agricultural Sciences, Professor;
E.A. Kutikhina, postgraduate student;
E.E. Kurdyukov1, Candidate of Pharmaceutical Sciences, Associate Professor
Penza State Agrarian University,
Penza, Russia, Botanicheskaya str. 30, 440014
tel. (8412) 628-367, e-mail:
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1Penza State University,
Penza, Russia, Krasnaya str. 40, 440026

When growing medicinal plants, it is important not only to obtain a high yield, but also high-quality raw materials. A wide range of pharmacological effects of calendula is due to the content of the dominant complex of biologically active compounds (BAС) responsible for immune activity and antioxidant properties.
These include flavonoids (rutin, narcissin) and carotenoids (β-carotene, lutein). Therefore, the aim of the research was to study the effect of growth regulators of natural origin on the quality of pot marigold raw materials obtained in the conditions of the forest-steppe of the Middle Volga region. The amount of flavonoids was determined in calendula flowers collected in the third decade of July, August, and September by differential spectrophotometry in terms of rutin at a wavelength of 408 nm. Quantitative determination of the content of calendula carotenoids in flowers was carried out by direct spectrophotometric method at an analytical wavelength of 450 nm
in terms of β-carotene. The average flavonoid content in July was 3.27%. In the raw materials harvested in August, flavonoid number decreased by 0.24%, in September it increased to 3.36%. According to the Golden Sea variety, the dynamics of accumulation of the amount of flavonoids from 3.37 to 3.46% can be traced. The use of Biodux and Zircon growth regulators ensures high quality of raw materials with a carotenoid content of 160.8...184.7 mg/% and 160.9...204.1 mg/%, respectively, depending on the harvest periods. This indicates the possibility of using vegetable raw materials for the industrial production of calendula preparations.
Keywords:pot marigold, variety, growth regulators, quality, raw materials, flowers, carotenoids, flavonoids.

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