title: METHOD FOR QUANTIFYING THE AMOUNT OF PHENYLPROPANOIDS IN STEVIA RAW MATERIALS
abstract: Dried stevia leaves (Stevia rebaudiana Bertoni) were used as objects of research. Four samples of stevia raw materials of different origin were studied: No. 1 (Russia, Penza region), No. 2 (Russia, Republic of Crimea), No. 3 (Paraguay), No. 4 (India). The purpose of this work is to develop a method for quantifying the amount of phenylpropanoids in stevia leaves.&#x0D; Quantitative determination of the amount of phenylpropanoids in stevia leaves by direct spectrophotometry was carried out. Thin-l
journal: chemistry of plant raw material