Research Progress on Main Active Constituents and Healthcare Function of Ya'an Tibetan Tea

Ya'an Tibetan tea is a kind of dark tea and belongs to post-fermented tea. Ya'an Tibetan tea which had good performance at health care is the daily necessity of the minority living in the Tibet region. Ya'an Tibetan tea is rich in multiple active constituents such as theabrownin, tea polysaccharide, organic acids, dietary fiber and crude fiber. The paper reviewed the research advances in the healthcare functions of Ya'an Tibetan tea, such as anti-hyperlipidemia, anti-obesity, anti-oxidative, help digestion, gastrointestinal conditioning effect, decreasing blood glucose, decreasing uric acid, anti-radiation and anti-bacterial. The key problems of the research of healthcare functions were prospected, so as to guide and expand the market of Ya'an Tibetan tea, and provide reference for further research of Ya'an Tibetan tea.