Biological activity, nutrients and caffeine analysis of fermented tea

Abstract

The reason why domestic fermented tea is less recognized than the world's top three black[Sri Lanka Uva black tea, India Darjeeling black tea, China Keemun(祁門) black tea] teas is that there is a very lack of scientific basis for clear quality standards and functionality. This researcher identified the major components of the world's top three black teas and fermented teas derived from domestic wild tea trees through analysis of various instruments such as HPLC, TOF-MS, and ELISA reader. In addition, in order to compare the physiological activity of the world's three major black teas and domestic fermented teas, the biological activity was compared and analyzed through DPPH ․ ABTS free radical scavenging activity and NO production inhibition. Furthermore, comparative analysis data on organic acid, free sugar, and tannic acid were obtained for quality comparison of palatable foods. When the above results are summarized, it is believed that it is possible to present the quality standards of Korean tea, and it is expected that the globalization of Korean tea will be possible.