ელანიძე, ლალილალიელანიძეElanidze, LaliLaliElanidze2025-02-182025-02-182022-11-30http://s-o-i.org/1.1/TAS-11-115-50https://openscience.ge/handle/1/7817Research has been carried out on the main phenolic components of a biologically active additive (BAA) of grape origin of the "Rkatsiteli" variety, prepared by a new technology. A rich and varied spectrum was revealed, representing in the form of proanthocyanidins, catechins, phenolic acids, etc. In the alcoholic extract of vine scraps, lignan α-conidendrin was identified and chromatographically determined. The retention time was determined under the conditions of liquid chromatography (RT-25.6 min) at a wavelength of 206 nm. The antioxidant activity of α-conidendrin according to the EPMR method is 35%. Phenolic components of dietary supplements and alcoholic extract of grapevine, characterized by high biological activity, are important components of the target product for the formation of organoleptic, therapeutic and prophylactic and other quality indicators and create a scientific basis for the development of the latest rational technologies of highly active and environmentally friendly products.rudietary supplementα-conidendrinphenolic componentsbiological activityantioxidant activitytext::journal::journal article::research articlehttps://dx.doi.org/10.15863/TAS.2022.11.115.501106