flavonoids

Аntibacterial activity of hydrogel materials based on copolymers polyvinylpirrolidon with extracts of Сalendula officinalis and Аrnica Montana

The possibility of using hydrogels,that are based on copolymers of polyvinylpyrrolidone with 2-hydroxyethylmethacrylate for saturation them with extracts of plants,was researched. Hydrogel materials with extracts of Calendula officinal is and Arnica montana were obtained. The sorption capacity of the hydrogels in relation to these extracts and the content of flavonoids in the extracts were determined  by using Ulab108UV.

SPRING PRECIOUS PRESENTATION – SOURCE OF PHENOL COMPOUNDS WITH ANTIOXIDANT ACTIVITY

The paper provides generalized information on the pharmacological properties, chemical
composition and use of primrose (Primula veris) in folk and official medicine. It has been
established that only 9 medicines on the basis of extracts from roots or flowers of the primrose
with a cup used in diseases of the respiratory system are registered in the pharmaceutical
market of Ukraine. In addition, the content of extractives, phenolic compounds, flavonoids,
antioxidant activity of tincture of grass of the primrose of spring is determined.

Peculiarities of Osmium Compounds Interaction with Some Flavonoids

The interaction of Os(IV) ions with morin, quercetin, luteolin has been investigated and the spectrophotometric methods of osmium determination using these reagents have been elaborated. The influence of various factors and the maximum yield of the products of Os(IV) ions interaction with flavonoids have been determined.