Accumulation and Transformation of Extractive Substances in Krasnodar Tea

Abstract

It is important to create varieties with unique quality characteristics. However, a complete study of the processes of accumulation and transformation of the antioxidant complex in raw materials and finished (black and green) tea in humid condition of Russian has not been conducted. This article is devoted to the study of the features of the extractive substances of new selection forms of Krasnodar tea, breeding by scientists of the Subtropical Scientific Center. Comparison of tea by the content of components of the catechin complex showed that the new forms of tea selection Center is characterized by a high level of accumulation of various groups of catechins and the largest amount is epigallocatechingallate (from 42 to 66 %). The presence of active dynamics of caffeine, flavonoids and Ruthin in the raw material (3-leaf sprout), green and black tea. The variation of extractive substances in sprouts and ready-made tea is related to the weather conditions of vegetation, varietal characteristics of plants and processing conditions. All samples of the Center’s selection have a rich phenolic complex, which is of interest as sources of resistance to the action of abiogenic stressors. They can be used for selecting plants with a highly effective antioxidant system.

Historical aspect of research directions in the plant physiology and biochemistry department of FRC SSC of RAS

“…В последние годы усиливается изучение биохимических показателей, связанных с пищевой значимостью выращиваемых в Субтропическом центре культур: устанавливается динамика синтеза биологически активных веществ в течение вегетации [21,35,44,65], выявляются факторы, влияющие на синтез этих соединений [64,66], и разрабатываются приёмы повышения их содержания в плодах субтропических, южных плодовых культур и чая [23,46].…”