Variation of certain antioxidants in tea growing in the humid subtropics of russia

The study of the peculiarities of the tea’s antioxidant complex grown in Russia is relevant and prospectively; the purpose of the research is to study the regularities of the components constitution that form the quality characteristics of tea (both raw materials and finished product). This article discusses changes in the biochemical composition of tea (pigments, vitamins, caffeine, and amino acids), both during the growing season and during the processing of raw materials into a finished product. The variation of all biologically active substances in both flushes and finished tea was revealed, which is associated with both varietal characteristics and the influence of weather conditions of vegetation.