a comparative analysis of chemical compositions in camellia sinensis var. puanensis kurihara, a novel chinese tea, by hplc and uflc-q-tof-ms/ms.camellia sinensis var. puanensis kurihara (puan tea) is a kind of ancient tea plant newly found in jiangxipo and the surrounding areas of puan county (guizhou, china). people there always believe that drinking puan tea is beneficial to the promotion of health and prevention of diseases. however, detailed information on its compositions has not been reported. therefore, in this study, the varieties and contents of purine alkaloids and polyphenols in puan tea were identified and determined by hplc ...201727596421
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