The content of individual amino acids and their total amount was evaluated with the developed HPLC method in white, green, black, oolong and pu-erh teas and listed in Table 2. White and green teas had the highest content of amino acids (on average 25.02 mg/g and 20.15 mg/g, respectively), followed by oolong and black teas (on average 16.3 mg/g and 13.2 mg/g, respectively).