title: A NEW METHOD OF QUANTITATIVE DETERMINATION OF PIGMENTS IN STEVIA LEAVES
abstract: Background. It is known that stevia leaves of Stevia rebaudiana (Bert.) contain a different complex of biologically active compounds (BAC) (flavonoids, phenylpropanoids, saponins, organic acids). In view of the fact that it is currently advisable to take orally dried and powdered medicinal plant raw materials, it is also interesting to study other BAC contained in the plant, in particular pigments [1, 2]. Stevia leaves contain a complex of natural pigments, the main of which are chlorophyll deri
journal: University proceedings Volga region Natural sciences