Detection and Analysis of Tea Polyphenol Content in Commercial Tea and Tea Drink

In this paper, six kinds of commercial teas and five kinds of tea drinks as the samples, UV spectrophotometry, iron tartrate colorimetric method, three wavelength spectrophotometry were used to detect tea polyphenols content in these samples. The results showed that tea polyphenols content in six tea from high to low order: Xihu Longjing Tea Yongchuan show shoots Jasmine Tea Green Tea before Tomb-sweeping Day The following year Longjing Jasmine buds, and the order of the tea drinks was: Kangshifu jasmine tea Kangshifu Green Tea Unified ice Black Tea Kangshifu fruit orange Coca-cola Sprite. The results have the selection of tea drinks will help people more rational, and experimental guidance for the detection of other substances in tea polyphenol content providers. The results will help people select tea drinks more rationally, and provides experimental guidance for the detection of tea polyphenol content in other substances.