Abstract
Allochrusa gypsophiloides (Regel) Schischk. Turkestan soaproot (TSR), a Central Asian endemic has commercial value as a producer of triterpene saponins. Spectrophotometric determination of saponins was carried out in the roots and the aerial part of wild plants during vegetation in the south of Kazakhstan. The level of saponins, phenols, and flavonoids in the seeds, aerial parts, and roots was assessed. The following ascending order in the saponins content: seeds-aerial part-root, was revealed. An increase in the saponins levels in the roots during the growing season with a maximum of 9.6% in fruiting was established. A high saponins amount (6%) was detected in the aerial part during the flowering which decreased twice at the fruiting. The antioxidant activity and foaming index of the total ethanol extracts from the initial and deposited plant materials were determined. The maximum antioxidant activity (35.5%) and antiradical properties (IC50 1480) in vitro were found in extracts from the aerial part with the highest content of flavonoids and phenols. It was revealed that long-term storage of roots contributes to an increase in saponins levels and in their surfactant properties. The data obtained indicate the possibility of alternative use of the aerial parts of Allochrysa gypsophiloides at the flowering for obtaining triterpene saponins and phenolic substances with antioxidant activity.